- Core Frameworks
- Add backlight_device_get_by_name() to the API - New Device Support - Add support for WLED5 to Qualcomm WLED - Fix-ups - Convert to GPIO descriptors; l4f00242t03 - Device Tree fix-ups; qcom-wled - Bug Fixes - Properly disable regulators on .probe() failure -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEdrbJNaO+IJqU8IdIUa+KL4f8d2EFAl7XZbwACgkQUa+KL4f8 d2FvuA//bkTfuewuIz8KEAjpDRftXqvhroq5++kzvziYCcleQzk1SytpaCUXxw20 Cn/sEXzdmzDbfwvZI9X+Ptsg3rf+MzP3dXc6azkmcYRP8gGdAJ7Tz4lH9Y9pH3lk AckZO4FWnmQ5a9KEPxhW+FZwwCeMH0DZd2eXUpgD+GwZePDi7TmdNWcaD7nhsaRd 14DTce1I0ZJrV39KcOXZbx80v6l6b8jtiIjYLPVS9wQx4KiGoHlPERztEANDakIp FDexk4smP+wfFQuhcYunNB31ZzTE50uT1SsilMOoIs0OIgPt/dfDr2DiRN8wp2Rv 5kSXO1qou3KNRFTvn1WqfWXBQmmJRQfZUvQypppMHbzx48xlAbStQF1h9eYod6EU J8EoO/EbyOPNXc7do0NKwnfNvdz1tmI9Qpj4Hz3T9C9spzQ9FPU3G+5VsdB/Rv5G B2AJAOG/GJqILDG8hLJ0ZaFYArmLyQCFbJhaRtvPqOSMmlWKgeFdSC8AzSNhf6EC 3Xkk4f5toKao7lgcEOWRbVYKVsdjSSxr4pwyW5VNi5XfR1DsKQj8gyCf5qrmasQE 11v8juUP/R/6XrHvCco0zgMlVk7k/O0IQ9k0ozRKqGBtz+UKN28EzsuV/TJ0qIVN UTwNoKuh9QixnTRb9Jnfl3EioFIv7JjXQVpLPhj+sGInjKv3y4Y= =sHzj -----END PGP SIGNATURE----- Merge tag 'backlight-next-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight Pull backlight updates from Lee Jones: "Core Framework: - Add backlight_device_get_by_name() to the API New Device Support: - Add support for WLED5 to Qualcomm WLED Fix-ups: - Convert to GPIO descriptors in l4f00242t03 - Device Tree fix-ups for qcom-wled Bug Fixes: - Properly disable regulators on .probe() failure" * tag 'backlight-next-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: Add backlight_device_get_by_name() backlight: qcom-wled: Add support for WLED5 peripheral that is present on PM8150L PMICs dt-bindings: backlight: qcom-wled: Add WLED5 bindings backlight: qcom-wled: Add callback functions dt-bindings: backlight: qcom-wled: Convert the wled bindings to .yaml format backlight: l4f00242t03: Convert to GPIO descriptors backlight: lp855x: Ensure regulators are disabled on probe failure
This commit is contained in:
commit
302d5b3321
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@ -1,154 +0,0 @@
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Binding for Qualcomm Technologies, Inc. WLED driver
|
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||||||
|
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WLED (White Light Emitting Diode) driver is used for controlling display
|
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backlight that is part of PMIC on Qualcomm Technologies, Inc. reference
|
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platforms. The PMIC is connected to the host processor via SPMI bus.
|
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|
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||||||
- compatible
|
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Usage: required
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Value type: <string>
|
|
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Definition: should be one of:
|
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"qcom,pm8941-wled"
|
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"qcom,pmi8998-wled"
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"qcom,pm660l-wled"
|
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|
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- reg
|
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Usage: required
|
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Value type: <prop encoded array>
|
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||||||
Definition: Base address of the WLED modules.
|
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||||||
|
|
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- default-brightness
|
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Usage: optional
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Value type: <u32>
|
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||||||
Definition: brightness value on boot, value from: 0-4095.
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Default: 2048
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|
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- label
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Usage: required
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Value type: <string>
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Definition: The name of the backlight device
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- qcom,cs-out
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Usage: optional
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Value type: <bool>
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Definition: enable current sink output.
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This property is supported only for PM8941.
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- qcom,cabc
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Usage: optional
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Value type: <bool>
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Definition: enable content adaptive backlight control.
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- qcom,ext-gen
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Usage: optional
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Value type: <bool>
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Definition: use externally generated modulator signal to dim.
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This property is supported only for PM8941.
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- qcom,current-limit
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Usage: optional
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Value type: <u32>
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Definition: mA; per-string current limit; value from 0 to 25 with
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1 mA step. Default 20 mA.
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This property is supported only for pm8941.
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- qcom,current-limit-microamp
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Usage: optional
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Value type: <u32>
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Definition: uA; per-string current limit; value from 0 to 30000 with
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2500 uA step. Default 25 mA.
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- qcom,current-boost-limit
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Usage: optional
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Value type: <u32>
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Definition: mA; boost current limit.
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For pm8941: one of: 105, 385, 525, 805, 980, 1260, 1400,
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1680. Default: 805 mA.
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For pmi8998: one of: 105, 280, 450, 620, 970, 1150, 1300,
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1500. Default: 970 mA.
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- qcom,switching-freq
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Usage: optional
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Value type: <u32>
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Definition: kHz; switching frequency; one of: 600, 640, 685, 738,
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800, 872, 960, 1066, 1200, 1371, 1600, 1920, 2400, 3200,
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4800, 9600.
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Default: for pm8941: 1600 kHz
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for pmi8998: 800 kHz
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- qcom,ovp
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Usage: optional
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Value type: <u32>
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Definition: V; Over-voltage protection limit; one of:
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27, 29, 32, 35. Default: 29V
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This property is supported only for PM8941.
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- qcom,ovp-millivolt
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Usage: optional
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Value type: <u32>
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Definition: mV; Over-voltage protection limit;
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For pmi8998: one of 18100, 19600, 29600, 31100.
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Default 29600 mV.
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If this property is not specified for PM8941, it
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falls back to "qcom,ovp" property.
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- qcom,num-strings
|
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Usage: optional
|
|
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Value type: <u32>
|
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Definition: #; number of led strings attached;
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value: For PM8941 from 1 to 3. Default: 2
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For PMI8998 from 1 to 4.
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- interrupts
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Usage: optional
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Value type: <prop encoded array>
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||||||
Definition: Interrupts associated with WLED. This should be
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"short" and "ovp" interrupts. Interrupts can be
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specified as per the encoding listed under
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Documentation/devicetree/bindings/spmi/
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qcom,spmi-pmic-arb.txt.
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- interrupt-names
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Usage: optional
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||||||
Value type: <string>
|
|
||||||
Definition: Interrupt names associated with the interrupts.
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||||||
Must be "short" and "ovp". The short circuit detection
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is not supported for PM8941.
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- qcom,enabled-strings
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Usage: optional
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Value tyoe: <u32 array>
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Definition: Array of the WLED strings numbered from 0 to 3. Each
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string of leds are operated individually. Specify the
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list of strings used by the device. Any combination of
|
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led strings can be used.
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||||||
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- qcom,external-pfet
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Usage: optional
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Value type: <bool>
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Definition: Specify if external PFET control for short circuit
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protection is used. This property is supported only
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for PMI8998.
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- qcom,auto-string-detection
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Usage: optional
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Value type: <bool>
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||||||
Definition: Enables auto-detection of the WLED string configuration.
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This feature is not supported for PM8941.
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Example:
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pm8941-wled@d800 {
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compatible = "qcom,pm8941-wled";
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reg = <0xd800>;
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label = "backlight";
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qcom,cs-out;
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qcom,current-limit = <20>;
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qcom,current-boost-limit = <805>;
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qcom,switching-freq = <1600>;
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qcom,ovp = <29>;
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qcom,num-strings = <2>;
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||||||
qcom,enabled-strings = <0 1>;
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||||||
};
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261
Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
Normal file
261
Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
Normal file
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@ -0,0 +1,261 @@
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|
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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||||||
|
%YAML 1.2
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||||||
|
---
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||||||
|
$id: http://devicetree.org/schemas/leds/backlight/qcom-wled.yaml#
|
||||||
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||||||
|
|
||||||
|
title: Binding for Qualcomm Technologies, Inc. WLED driver
|
||||||
|
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||||||
|
maintainers:
|
||||||
|
- Bjorn Andersson <bjorn.andersson@linaro.org>
|
||||||
|
- Kiran Gunda <kgunda@codeaurora.org>
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||||||
|
|
||||||
|
description: |
|
||||||
|
WLED (White Light Emitting Diode) driver is used for controlling display
|
||||||
|
backlight that is part of PMIC on Qualcomm Technologies, Inc. reference
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||||||
|
platforms. The PMIC is connected to the host processor via SPMI bus.
|
||||||
|
|
||||||
|
properties:
|
||||||
|
compatible:
|
||||||
|
enum:
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||||||
|
- qcom,pm8941-wled
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||||||
|
- qcom,pmi8998-wled
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||||||
|
- qcom,pm660l-wled
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||||||
|
- qcom,pm8150l-wled
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||||||
|
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||||||
|
reg:
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||||||
|
maxItems: 1
|
||||||
|
|
||||||
|
default-brightness:
|
||||||
|
description: |
|
||||||
|
brightness value on boot.
|
||||||
|
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||||||
|
label: true
|
||||||
|
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||||||
|
max-brightness:
|
||||||
|
description: |
|
||||||
|
Maximum brightness level.
|
||||||
|
|
||||||
|
qcom,cs-out:
|
||||||
|
description: |
|
||||||
|
enable current sink output.
|
||||||
|
This property is supported only for WLED3.
|
||||||
|
type: boolean
|
||||||
|
|
||||||
|
qcom,cabc:
|
||||||
|
description: |
|
||||||
|
enable content adaptive backlight control.
|
||||||
|
type: boolean
|
||||||
|
|
||||||
|
qcom,ext-gen:
|
||||||
|
description: |
|
||||||
|
use externally generated modulator signal to dim.
|
||||||
|
This property is supported only for WLED3.
|
||||||
|
type: boolean
|
||||||
|
|
||||||
|
qcom,current-limit:
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||||||
|
description: |
|
||||||
|
mA; per-string current limit.
|
||||||
|
This property is supported only for WLED3.
|
||||||
|
allOf:
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||||||
|
- $ref: /schemas/types.yaml#/definitions/uint32
|
||||||
|
default: 20
|
||||||
|
minimum: 0
|
||||||
|
maximum: 25
|
||||||
|
|
||||||
|
qcom,current-limit-microamp:
|
||||||
|
description: |
|
||||||
|
uA; per-string current limit.
|
||||||
|
default: 25
|
||||||
|
minimum: 0
|
||||||
|
maximum: 30000
|
||||||
|
multipleOf: 25
|
||||||
|
|
||||||
|
qcom,current-boost-limit:
|
||||||
|
description: |
|
||||||
|
mA; boost current limit.
|
||||||
|
allOf:
|
||||||
|
- $ref: /schemas/types.yaml#/definitions/uint32
|
||||||
|
|
||||||
|
qcom,switching-freq:
|
||||||
|
description: |
|
||||||
|
kHz; switching frequency.
|
||||||
|
allOf:
|
||||||
|
- $ref: /schemas/types.yaml#/definitions/uint32
|
||||||
|
- enum: [ 600, 640, 685, 738, 800, 872, 960, 1066, 1200, 1371, 1600, 1920, 2400, 3200, 4800, 9600 ]
|
||||||
|
|
||||||
|
qcom,ovp:
|
||||||
|
description: |
|
||||||
|
V; Over-voltage protection limit.
|
||||||
|
This property is supported only for WLED3.
|
||||||
|
allOf:
|
||||||
|
- $ref: /schemas/types.yaml#/definitions/uint32
|
||||||
|
- enum: [ 27, 29, 32, 35 ]
|
||||||
|
- default: 29
|
||||||
|
|
||||||
|
qcom,ovp-millivolt:
|
||||||
|
description: |
|
||||||
|
Over-voltage protection limit. This property is for WLED4 only.
|
||||||
|
allOf:
|
||||||
|
- $ref: /schemas/types.yaml#/definitions/uint32
|
||||||
|
- enum: [ 18100, 19600, 29600, 31100 ]
|
||||||
|
- default: 29600
|
||||||
|
|
||||||
|
qcom,num-strings:
|
||||||
|
description: |
|
||||||
|
number of led strings attached.
|
||||||
|
allOf:
|
||||||
|
- $ref: /schemas/types.yaml#/definitions/uint32
|
||||||
|
|
||||||
|
qcom,enabled-strings:
|
||||||
|
description: |
|
||||||
|
Array of the WLED strings numbered from 0 to 3. Each
|
||||||
|
string of leds are operated individually. Specify the
|
||||||
|
list of strings used by the device. Any combination of
|
||||||
|
led strings can be used.
|
||||||
|
allOf:
|
||||||
|
- $ref: /schemas/types.yaml#/definitions/uint32-array
|
||||||
|
minItems: 1
|
||||||
|
maxItems: 4
|
||||||
|
|
||||||
|
qcom,external-pfet:
|
||||||
|
description: |
|
||||||
|
Specify if external PFET control for short circuit
|
||||||
|
protection is used. This property is supported only
|
||||||
|
for WLED4.
|
||||||
|
type: boolean
|
||||||
|
|
||||||
|
qcom,auto-string-detection:
|
||||||
|
description: |
|
||||||
|
Enables auto-detection of the WLED string configuration.
|
||||||
|
This feature is not supported for WLED3.
|
||||||
|
type: boolean
|
||||||
|
|
||||||
|
interrupts:
|
||||||
|
minItems: 1
|
||||||
|
items:
|
||||||
|
- description: over voltage protection interrupt.
|
||||||
|
- description: short circuit interrupt.
|
||||||
|
|
||||||
|
interrupt-names:
|
||||||
|
minItems: 1
|
||||||
|
items:
|
||||||
|
- const: ovp
|
||||||
|
- const: short
|
||||||
|
|
||||||
|
qcom,modulator-sel:
|
||||||
|
description: |
|
||||||
|
Selects the modulator used for brightness modulation.
|
||||||
|
Allowed values are,
|
||||||
|
0 - Modulator A
|
||||||
|
1 - Modulator B
|
||||||
|
This property is applicable only to WLED5 peripheral.
|
||||||
|
allOf:
|
||||||
|
- $ref: /schemas/types.yaml#/definitions/uint32
|
||||||
|
- enum: [ 0, 1 ]
|
||||||
|
- default: 0
|
||||||
|
|
||||||
|
qcom,cabc-sel:
|
||||||
|
description: |
|
||||||
|
Selects the CABC pin signal used for brightness modulation.
|
||||||
|
Allowed values are,
|
||||||
|
0 - CABC disabled
|
||||||
|
1 - CABC 1
|
||||||
|
2 - CABC 2
|
||||||
|
3 - External signal (e.g. LPG) is used for dimming
|
||||||
|
This property is applicable only to WLED5 peripheral.
|
||||||
|
allOf:
|
||||||
|
- $ref: /schemas/types.yaml#/definitions/uint32
|
||||||
|
- enum: [ 0, 1, 2, 3 ]
|
||||||
|
|
||||||
|
allOf:
|
||||||
|
- if:
|
||||||
|
properties:
|
||||||
|
compatible:
|
||||||
|
contains:
|
||||||
|
const: qcom,pm8941-wled
|
||||||
|
|
||||||
|
then:
|
||||||
|
properties:
|
||||||
|
qcom,current-boost-limit:
|
||||||
|
enum: [ 105, 385, 525, 805, 980, 1260, 1400, 1680 ]
|
||||||
|
default: 805
|
||||||
|
|
||||||
|
qcom,switching-freq:
|
||||||
|
default: 1600
|
||||||
|
|
||||||
|
qcom,num-strings:
|
||||||
|
enum: [ 1, 2, 3 ]
|
||||||
|
|
||||||
|
interrupts:
|
||||||
|
maxItems: 1
|
||||||
|
|
||||||
|
interrupt-names:
|
||||||
|
maxItems: 1
|
||||||
|
|
||||||
|
else:
|
||||||
|
properties:
|
||||||
|
qcom,current-boost-limit:
|
||||||
|
enum: [ 105, 280, 450, 620, 970, 1150, 1300, 1500 ]
|
||||||
|
default: 970
|
||||||
|
|
||||||
|
qcom,switching-freq:
|
||||||
|
default: 800
|
||||||
|
|
||||||
|
qcom,num-strings:
|
||||||
|
enum: [ 1, 2, 3, 4 ]
|
||||||
|
|
||||||
|
interrupts:
|
||||||
|
minItems: 2
|
||||||
|
|
||||||
|
interrupt-names:
|
||||||
|
minItems: 2
|
||||||
|
- if:
|
||||||
|
properties:
|
||||||
|
compatible:
|
||||||
|
contains:
|
||||||
|
enum:
|
||||||
|
- qcom,pm8150l-wled
|
||||||
|
|
||||||
|
then:
|
||||||
|
properties:
|
||||||
|
default-brightness:
|
||||||
|
minimum: 0
|
||||||
|
maximum: 32767
|
||||||
|
|
||||||
|
max-brightness:
|
||||||
|
minimum: 0
|
||||||
|
maximum: 32767
|
||||||
|
|
||||||
|
else:
|
||||||
|
properties:
|
||||||
|
default-brightness:
|
||||||
|
minimum: 0
|
||||||
|
maximum: 4095
|
||||||
|
|
||||||
|
max-brightness:
|
||||||
|
minimum: 0
|
||||||
|
maximum: 4095
|
||||||
|
|
||||||
|
required:
|
||||||
|
- compatible
|
||||||
|
- reg
|
||||||
|
- label
|
||||||
|
|
||||||
|
additionalProperties: false
|
||||||
|
|
||||||
|
examples:
|
||||||
|
- |
|
||||||
|
backlight@d800 {
|
||||||
|
compatible = "qcom,pm8941-wled";
|
||||||
|
reg = <0xd800 0x100>;
|
||||||
|
label = "backlight";
|
||||||
|
|
||||||
|
qcom,cs-out;
|
||||||
|
qcom,current-limit = <20>;
|
||||||
|
qcom,current-boost-limit = <805>;
|
||||||
|
qcom,switching-freq = <1600>;
|
||||||
|
qcom,ovp = <29>;
|
||||||
|
qcom,num-strings = <2>;
|
||||||
|
qcom,enabled-strings = <0 1>;
|
||||||
|
};
|
|
@ -13,6 +13,7 @@
|
||||||
|
|
||||||
#include <linux/platform_device.h>
|
#include <linux/platform_device.h>
|
||||||
#include <linux/gpio.h>
|
#include <linux/gpio.h>
|
||||||
|
#include <linux/gpio/machine.h>
|
||||||
#include <linux/irq.h>
|
#include <linux/irq.h>
|
||||||
#include <linux/usb/otg.h>
|
#include <linux/usb/otg.h>
|
||||||
#include <linux/usb/ulpi.h>
|
#include <linux/usb/ulpi.h>
|
||||||
|
@ -20,8 +21,6 @@
|
||||||
#include <linux/mfd/mc13783.h>
|
#include <linux/mfd/mc13783.h>
|
||||||
#include <linux/spi/spi.h>
|
#include <linux/spi/spi.h>
|
||||||
#include <linux/regulator/machine.h>
|
#include <linux/regulator/machine.h>
|
||||||
#include <linux/spi/l4f00242t03.h>
|
|
||||||
|
|
||||||
|
|
||||||
#include <asm/mach-types.h>
|
#include <asm/mach-types.h>
|
||||||
#include <asm/mach/arch.h>
|
#include <asm/mach/arch.h>
|
||||||
|
@ -351,9 +350,19 @@ static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
|
||||||
};
|
};
|
||||||
|
|
||||||
/* LCD */
|
/* LCD */
|
||||||
static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
|
static struct gpiod_lookup_table mx27_3ds_lcd_gpiod_table = {
|
||||||
.reset_gpio = LCD_RESET,
|
.dev_id = "spi0.0", /* Bus 0 chipselect 0 */
|
||||||
.data_enable_gpio = LCD_ENABLE,
|
.table = {
|
||||||
|
/*
|
||||||
|
* The i.MX27 has the i.MX21 GPIO controller, the GPIOs
|
||||||
|
* numbered IMX_GPIO_NR(1, 3) and IMX_GPIO_NR(1, 31)
|
||||||
|
* are in "bank 1" which is subtracted by one in the macro
|
||||||
|
* so these are actually bank 0 on "imx21-gpio.0".
|
||||||
|
*/
|
||||||
|
GPIO_LOOKUP("imx21-gpio.0", 3, "reset", GPIO_ACTIVE_HIGH),
|
||||||
|
GPIO_LOOKUP("imx21-gpio.0", 31, "enable", GPIO_ACTIVE_HIGH),
|
||||||
|
{ },
|
||||||
|
},
|
||||||
};
|
};
|
||||||
|
|
||||||
static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
|
static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
|
||||||
|
@ -370,7 +379,6 @@ static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
|
||||||
.max_speed_hz = 5000000,
|
.max_speed_hz = 5000000,
|
||||||
.bus_num = 0,
|
.bus_num = 0,
|
||||||
.chip_select = 0, /* SS0 */
|
.chip_select = 0, /* SS0 */
|
||||||
.platform_data = &mx27_3ds_lcd_pdata,
|
|
||||||
},
|
},
|
||||||
};
|
};
|
||||||
|
|
||||||
|
@ -416,6 +424,7 @@ static void __init mx27pdk_late_init(void)
|
||||||
if (!otg_mode_host)
|
if (!otg_mode_host)
|
||||||
imx27_add_fsl_usb2_udc(&otg_device_pdata);
|
imx27_add_fsl_usb2_udc(&otg_device_pdata);
|
||||||
|
|
||||||
|
gpiod_add_lookup_table(&mx27_3ds_lcd_gpiod_table);
|
||||||
mx27_3ds_spi_devs[0].irq = gpio_to_irq(PMIC_INT);
|
mx27_3ds_spi_devs[0].irq = gpio_to_irq(PMIC_INT);
|
||||||
spi_register_board_info(mx27_3ds_spi_devs,
|
spi_register_board_info(mx27_3ds_spi_devs,
|
||||||
ARRAY_SIZE(mx27_3ds_spi_devs));
|
ARRAY_SIZE(mx27_3ds_spi_devs));
|
||||||
|
|
|
@ -10,10 +10,10 @@
|
||||||
#include <linux/clk.h>
|
#include <linux/clk.h>
|
||||||
#include <linux/irq.h>
|
#include <linux/irq.h>
|
||||||
#include <linux/gpio.h>
|
#include <linux/gpio.h>
|
||||||
|
#include <linux/gpio/machine.h>
|
||||||
#include <linux/platform_device.h>
|
#include <linux/platform_device.h>
|
||||||
#include <linux/mfd/mc13783.h>
|
#include <linux/mfd/mc13783.h>
|
||||||
#include <linux/spi/spi.h>
|
#include <linux/spi/spi.h>
|
||||||
#include <linux/spi/l4f00242t03.h>
|
|
||||||
#include <linux/regulator/machine.h>
|
#include <linux/regulator/machine.h>
|
||||||
#include <linux/usb/otg.h>
|
#include <linux/usb/otg.h>
|
||||||
#include <linux/usb/ulpi.h>
|
#include <linux/usb/ulpi.h>
|
||||||
|
@ -160,9 +160,23 @@ static struct mx3fb_platform_data mx3fb_pdata __initdata = {
|
||||||
};
|
};
|
||||||
|
|
||||||
/* LCD */
|
/* LCD */
|
||||||
static struct l4f00242t03_pdata mx31_3ds_l4f00242t03_pdata = {
|
static struct gpiod_lookup_table mx31_3ds_lcd_gpiod_table = {
|
||||||
.reset_gpio = IOMUX_TO_GPIO(MX31_PIN_LCS1),
|
.dev_id = "spi0.2", /* Bus 0 chipselect 2 */
|
||||||
.data_enable_gpio = IOMUX_TO_GPIO(MX31_PIN_SER_RS),
|
.table = {
|
||||||
|
/*
|
||||||
|
* "reset" has IOMUX_TO_GPIO(IOMUX_PIN(88, 28)).
|
||||||
|
* The macro only shifts 88 to bits 9..16 and then
|
||||||
|
* mask it and shift it back. The GPIO number is 88.
|
||||||
|
* 88 is 2*32+24
|
||||||
|
*/
|
||||||
|
GPIO_LOOKUP("imx31-gpio.2", 24, "reset", GPIO_ACTIVE_HIGH),
|
||||||
|
/*
|
||||||
|
* Same reasoning as above for
|
||||||
|
* IOMUX_TO_GPIO(IOMUX_PIN(89, 27), pin 89 is 2*32+25.
|
||||||
|
*/
|
||||||
|
GPIO_LOOKUP("imx31-gpio.2", 25, "enable", GPIO_ACTIVE_HIGH),
|
||||||
|
{ },
|
||||||
|
},
|
||||||
};
|
};
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -387,7 +401,6 @@ static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {
|
||||||
.max_speed_hz = 5000000,
|
.max_speed_hz = 5000000,
|
||||||
.bus_num = 0,
|
.bus_num = 0,
|
||||||
.chip_select = 2, /* SS2 */
|
.chip_select = 2, /* SS2 */
|
||||||
.platform_data = &mx31_3ds_l4f00242t03_pdata,
|
|
||||||
},
|
},
|
||||||
};
|
};
|
||||||
|
|
||||||
|
@ -566,6 +579,7 @@ static void __init mx31_3ds_init(void)
|
||||||
|
|
||||||
static void __init mx31_3ds_late(void)
|
static void __init mx31_3ds_late(void)
|
||||||
{
|
{
|
||||||
|
gpiod_add_lookup_table(&mx31_3ds_lcd_gpiod_table);
|
||||||
mx31_3ds_spi_devs[0].irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
|
mx31_3ds_spi_devs[0].irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
|
||||||
spi_register_board_info(mx31_3ds_spi_devs,
|
spi_register_board_info(mx31_3ds_spi_devs,
|
||||||
ARRAY_SIZE(mx31_3ds_spi_devs));
|
ARRAY_SIZE(mx31_3ds_spi_devs));
|
||||||
|
|
|
@ -432,6 +432,27 @@ struct backlight_device *backlight_device_get_by_type(enum backlight_type type)
|
||||||
}
|
}
|
||||||
EXPORT_SYMBOL(backlight_device_get_by_type);
|
EXPORT_SYMBOL(backlight_device_get_by_type);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* backlight_device_get_by_name - Get backlight device by name
|
||||||
|
* @name: Device name
|
||||||
|
*
|
||||||
|
* This function looks up a backlight device by its name. It obtains a reference
|
||||||
|
* on the backlight device and it is the caller's responsibility to drop the
|
||||||
|
* reference by calling backlight_put().
|
||||||
|
*
|
||||||
|
* Returns:
|
||||||
|
* A pointer to the backlight device if found, otherwise NULL.
|
||||||
|
*/
|
||||||
|
struct backlight_device *backlight_device_get_by_name(const char *name)
|
||||||
|
{
|
||||||
|
struct device *dev;
|
||||||
|
|
||||||
|
dev = class_find_device_by_name(backlight_class, name);
|
||||||
|
|
||||||
|
return dev ? to_backlight_device(dev) : NULL;
|
||||||
|
}
|
||||||
|
EXPORT_SYMBOL(backlight_device_get_by_name);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* backlight_device_unregister - unregisters a backlight device object.
|
* backlight_device_unregister - unregisters a backlight device object.
|
||||||
* @bd: the backlight device object to be unregistered and freed.
|
* @bd: the backlight device object to be unregistered and freed.
|
||||||
|
|
|
@ -14,13 +14,11 @@
|
||||||
#include <linux/kernel.h>
|
#include <linux/kernel.h>
|
||||||
#include <linux/delay.h>
|
#include <linux/delay.h>
|
||||||
#include <linux/module.h>
|
#include <linux/module.h>
|
||||||
#include <linux/gpio.h>
|
#include <linux/gpio/consumer.h>
|
||||||
#include <linux/lcd.h>
|
#include <linux/lcd.h>
|
||||||
#include <linux/slab.h>
|
#include <linux/slab.h>
|
||||||
#include <linux/regulator/consumer.h>
|
#include <linux/regulator/consumer.h>
|
||||||
|
|
||||||
#include <linux/spi/spi.h>
|
#include <linux/spi/spi.h>
|
||||||
#include <linux/spi/l4f00242t03.h>
|
|
||||||
|
|
||||||
struct l4f00242t03_priv {
|
struct l4f00242t03_priv {
|
||||||
struct spi_device *spi;
|
struct spi_device *spi;
|
||||||
|
@ -28,16 +26,18 @@ struct l4f00242t03_priv {
|
||||||
int lcd_state;
|
int lcd_state;
|
||||||
struct regulator *io_reg;
|
struct regulator *io_reg;
|
||||||
struct regulator *core_reg;
|
struct regulator *core_reg;
|
||||||
|
struct gpio_desc *reset;
|
||||||
|
struct gpio_desc *enable;
|
||||||
};
|
};
|
||||||
|
|
||||||
static void l4f00242t03_reset(unsigned int gpio)
|
static void l4f00242t03_reset(struct gpio_desc *gpiod)
|
||||||
{
|
{
|
||||||
pr_debug("l4f00242t03_reset.\n");
|
pr_debug("l4f00242t03_reset.\n");
|
||||||
gpio_set_value(gpio, 1);
|
gpiod_set_value(gpiod, 1);
|
||||||
mdelay(100);
|
mdelay(100);
|
||||||
gpio_set_value(gpio, 0);
|
gpiod_set_value(gpiod, 0);
|
||||||
mdelay(10); /* tRES >= 100us */
|
mdelay(10); /* tRES >= 100us */
|
||||||
gpio_set_value(gpio, 1);
|
gpiod_set_value(gpiod, 1);
|
||||||
mdelay(20);
|
mdelay(20);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -45,7 +45,6 @@ static void l4f00242t03_reset(unsigned int gpio)
|
||||||
|
|
||||||
static void l4f00242t03_lcd_init(struct spi_device *spi)
|
static void l4f00242t03_lcd_init(struct spi_device *spi)
|
||||||
{
|
{
|
||||||
struct l4f00242t03_pdata *pdata = dev_get_platdata(&spi->dev);
|
|
||||||
struct l4f00242t03_priv *priv = spi_get_drvdata(spi);
|
struct l4f00242t03_priv *priv = spi_get_drvdata(spi);
|
||||||
const u16 cmd[] = { 0x36, param(0), 0x3A, param(0x60) };
|
const u16 cmd[] = { 0x36, param(0), 0x3A, param(0x60) };
|
||||||
int ret;
|
int ret;
|
||||||
|
@ -76,21 +75,20 @@ static void l4f00242t03_lcd_init(struct spi_device *spi)
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
l4f00242t03_reset(pdata->reset_gpio);
|
l4f00242t03_reset(priv->reset);
|
||||||
|
|
||||||
gpio_set_value(pdata->data_enable_gpio, 1);
|
gpiod_set_value(priv->enable, 1);
|
||||||
msleep(60);
|
msleep(60);
|
||||||
spi_write(spi, (const u8 *)cmd, ARRAY_SIZE(cmd) * sizeof(u16));
|
spi_write(spi, (const u8 *)cmd, ARRAY_SIZE(cmd) * sizeof(u16));
|
||||||
}
|
}
|
||||||
|
|
||||||
static void l4f00242t03_lcd_powerdown(struct spi_device *spi)
|
static void l4f00242t03_lcd_powerdown(struct spi_device *spi)
|
||||||
{
|
{
|
||||||
struct l4f00242t03_pdata *pdata = dev_get_platdata(&spi->dev);
|
|
||||||
struct l4f00242t03_priv *priv = spi_get_drvdata(spi);
|
struct l4f00242t03_priv *priv = spi_get_drvdata(spi);
|
||||||
|
|
||||||
dev_dbg(&spi->dev, "Powering down LCD\n");
|
dev_dbg(&spi->dev, "Powering down LCD\n");
|
||||||
|
|
||||||
gpio_set_value(pdata->data_enable_gpio, 0);
|
gpiod_set_value(priv->enable, 0);
|
||||||
|
|
||||||
regulator_disable(priv->io_reg);
|
regulator_disable(priv->io_reg);
|
||||||
regulator_disable(priv->core_reg);
|
regulator_disable(priv->core_reg);
|
||||||
|
@ -168,13 +166,6 @@ static struct lcd_ops l4f_ops = {
|
||||||
static int l4f00242t03_probe(struct spi_device *spi)
|
static int l4f00242t03_probe(struct spi_device *spi)
|
||||||
{
|
{
|
||||||
struct l4f00242t03_priv *priv;
|
struct l4f00242t03_priv *priv;
|
||||||
struct l4f00242t03_pdata *pdata = dev_get_platdata(&spi->dev);
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
if (pdata == NULL) {
|
|
||||||
dev_err(&spi->dev, "Uninitialized platform data.\n");
|
|
||||||
return -EINVAL;
|
|
||||||
}
|
|
||||||
|
|
||||||
priv = devm_kzalloc(&spi->dev, sizeof(struct l4f00242t03_priv),
|
priv = devm_kzalloc(&spi->dev, sizeof(struct l4f00242t03_priv),
|
||||||
GFP_KERNEL);
|
GFP_KERNEL);
|
||||||
|
@ -187,21 +178,21 @@ static int l4f00242t03_probe(struct spi_device *spi)
|
||||||
|
|
||||||
priv->spi = spi;
|
priv->spi = spi;
|
||||||
|
|
||||||
ret = devm_gpio_request_one(&spi->dev, pdata->reset_gpio,
|
priv->reset = devm_gpiod_get(&spi->dev, "reset", GPIOD_OUT_HIGH);
|
||||||
GPIOF_OUT_INIT_HIGH, "lcd l4f00242t03 reset");
|
if (IS_ERR(priv->reset)) {
|
||||||
if (ret) {
|
|
||||||
dev_err(&spi->dev,
|
dev_err(&spi->dev,
|
||||||
"Unable to get the lcd l4f00242t03 reset gpio.\n");
|
"Unable to get the lcd l4f00242t03 reset gpio.\n");
|
||||||
return ret;
|
return PTR_ERR(priv->reset);
|
||||||
}
|
}
|
||||||
|
gpiod_set_consumer_name(priv->reset, "lcd l4f00242t03 reset");
|
||||||
|
|
||||||
ret = devm_gpio_request_one(&spi->dev, pdata->data_enable_gpio,
|
priv->enable = devm_gpiod_get(&spi->dev, "enable", GPIOD_OUT_LOW);
|
||||||
GPIOF_OUT_INIT_LOW, "lcd l4f00242t03 data enable");
|
if (IS_ERR(priv->enable)) {
|
||||||
if (ret) {
|
|
||||||
dev_err(&spi->dev,
|
dev_err(&spi->dev,
|
||||||
"Unable to get the lcd l4f00242t03 data en gpio.\n");
|
"Unable to get the lcd l4f00242t03 data en gpio.\n");
|
||||||
return ret;
|
return PTR_ERR(priv->enable);
|
||||||
}
|
}
|
||||||
|
gpiod_set_consumer_name(priv->enable, "lcd l4f00242t03 data enable");
|
||||||
|
|
||||||
priv->io_reg = devm_regulator_get(&spi->dev, "vdd");
|
priv->io_reg = devm_regulator_get(&spi->dev, "vdd");
|
||||||
if (IS_ERR(priv->io_reg)) {
|
if (IS_ERR(priv->io_reg)) {
|
||||||
|
|
|
@ -456,7 +456,7 @@ static int lp855x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
|
||||||
ret = regulator_enable(lp->enable);
|
ret = regulator_enable(lp->enable);
|
||||||
if (ret < 0) {
|
if (ret < 0) {
|
||||||
dev_err(lp->dev, "failed to enable vddio: %d\n", ret);
|
dev_err(lp->dev, "failed to enable vddio: %d\n", ret);
|
||||||
return ret;
|
goto disable_supply;
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -471,24 +471,34 @@ static int lp855x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
|
||||||
ret = lp855x_configure(lp);
|
ret = lp855x_configure(lp);
|
||||||
if (ret) {
|
if (ret) {
|
||||||
dev_err(lp->dev, "device config err: %d", ret);
|
dev_err(lp->dev, "device config err: %d", ret);
|
||||||
return ret;
|
goto disable_vddio;
|
||||||
}
|
}
|
||||||
|
|
||||||
ret = lp855x_backlight_register(lp);
|
ret = lp855x_backlight_register(lp);
|
||||||
if (ret) {
|
if (ret) {
|
||||||
dev_err(lp->dev,
|
dev_err(lp->dev,
|
||||||
"failed to register backlight. err: %d\n", ret);
|
"failed to register backlight. err: %d\n", ret);
|
||||||
return ret;
|
goto disable_vddio;
|
||||||
}
|
}
|
||||||
|
|
||||||
ret = sysfs_create_group(&lp->dev->kobj, &lp855x_attr_group);
|
ret = sysfs_create_group(&lp->dev->kobj, &lp855x_attr_group);
|
||||||
if (ret) {
|
if (ret) {
|
||||||
dev_err(lp->dev, "failed to register sysfs. err: %d\n", ret);
|
dev_err(lp->dev, "failed to register sysfs. err: %d\n", ret);
|
||||||
return ret;
|
goto disable_vddio;
|
||||||
}
|
}
|
||||||
|
|
||||||
backlight_update_status(lp->bl);
|
backlight_update_status(lp->bl);
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
|
|
||||||
|
disable_vddio:
|
||||||
|
if (lp->enable)
|
||||||
|
regulator_disable(lp->enable);
|
||||||
|
disable_supply:
|
||||||
|
if (lp->supply)
|
||||||
|
regulator_disable(lp->supply);
|
||||||
|
|
||||||
|
return ret;
|
||||||
}
|
}
|
||||||
|
|
||||||
static int lp855x_remove(struct i2c_client *cl)
|
static int lp855x_remove(struct i2c_client *cl)
|
||||||
|
@ -497,6 +507,8 @@ static int lp855x_remove(struct i2c_client *cl)
|
||||||
|
|
||||||
lp->bl->props.brightness = 0;
|
lp->bl->props.brightness = 0;
|
||||||
backlight_update_status(lp->bl);
|
backlight_update_status(lp->bl);
|
||||||
|
if (lp->enable)
|
||||||
|
regulator_disable(lp->enable);
|
||||||
if (lp->supply)
|
if (lp->supply)
|
||||||
regulator_disable(lp->supply);
|
regulator_disable(lp->supply);
|
||||||
sysfs_remove_group(&lp->dev->kobj, &lp855x_attr_group);
|
sysfs_remove_group(&lp->dev->kobj, &lp855x_attr_group);
|
||||||
|
|
|
@ -15,16 +15,21 @@
|
||||||
|
|
||||||
/* From DT binding */
|
/* From DT binding */
|
||||||
#define WLED_MAX_STRINGS 4
|
#define WLED_MAX_STRINGS 4
|
||||||
|
#define MOD_A 0
|
||||||
|
#define MOD_B 1
|
||||||
|
|
||||||
#define WLED_DEFAULT_BRIGHTNESS 2048
|
#define WLED_DEFAULT_BRIGHTNESS 2048
|
||||||
#define WLED_SOFT_START_DLY_US 10000
|
#define WLED_SOFT_START_DLY_US 10000
|
||||||
#define WLED3_SINK_REG_BRIGHT_MAX 0xFFF
|
#define WLED3_SINK_REG_BRIGHT_MAX 0xFFF
|
||||||
|
#define WLED5_SINK_REG_BRIGHT_MAX_12B 0xFFF
|
||||||
|
#define WLED5_SINK_REG_BRIGHT_MAX_15B 0x7FFF
|
||||||
|
|
||||||
/* WLED3/WLED4 control registers */
|
/* WLED3/WLED4 control registers */
|
||||||
#define WLED3_CTRL_REG_FAULT_STATUS 0x08
|
#define WLED3_CTRL_REG_FAULT_STATUS 0x08
|
||||||
#define WLED3_CTRL_REG_ILIM_FAULT_BIT BIT(0)
|
#define WLED3_CTRL_REG_ILIM_FAULT_BIT BIT(0)
|
||||||
#define WLED3_CTRL_REG_OVP_FAULT_BIT BIT(1)
|
#define WLED3_CTRL_REG_OVP_FAULT_BIT BIT(1)
|
||||||
#define WLED4_CTRL_REG_SC_FAULT_BIT BIT(2)
|
#define WLED4_CTRL_REG_SC_FAULT_BIT BIT(2)
|
||||||
|
#define WLED5_CTRL_REG_OVP_PRE_ALARM_BIT BIT(4)
|
||||||
|
|
||||||
#define WLED3_CTRL_REG_INT_RT_STS 0x10
|
#define WLED3_CTRL_REG_INT_RT_STS 0x10
|
||||||
#define WLED3_CTRL_REG_OVP_FAULT_STATUS BIT(1)
|
#define WLED3_CTRL_REG_OVP_FAULT_STATUS BIT(1)
|
||||||
|
@ -40,6 +45,7 @@
|
||||||
|
|
||||||
#define WLED3_CTRL_REG_OVP 0x4d
|
#define WLED3_CTRL_REG_OVP 0x4d
|
||||||
#define WLED3_CTRL_REG_OVP_MASK GENMASK(1, 0)
|
#define WLED3_CTRL_REG_OVP_MASK GENMASK(1, 0)
|
||||||
|
#define WLED5_CTRL_REG_OVP_MASK GENMASK(3, 0)
|
||||||
|
|
||||||
#define WLED3_CTRL_REG_ILIMIT 0x4e
|
#define WLED3_CTRL_REG_ILIMIT 0x4e
|
||||||
#define WLED3_CTRL_REG_ILIMIT_MASK GENMASK(2, 0)
|
#define WLED3_CTRL_REG_ILIMIT_MASK GENMASK(2, 0)
|
||||||
|
@ -101,6 +107,44 @@
|
||||||
|
|
||||||
#define WLED4_SINK_REG_BRIGHT(n) (0x57 + (n * 0x10))
|
#define WLED4_SINK_REG_BRIGHT(n) (0x57 + (n * 0x10))
|
||||||
|
|
||||||
|
/* WLED5 specific control registers */
|
||||||
|
#define WLED5_CTRL_REG_OVP_INT_CTL 0x5f
|
||||||
|
#define WLED5_CTRL_REG_OVP_INT_TIMER_MASK GENMASK(2, 0)
|
||||||
|
|
||||||
|
/* WLED5 specific sink registers */
|
||||||
|
#define WLED5_SINK_REG_MOD_A_EN 0x50
|
||||||
|
#define WLED5_SINK_REG_MOD_B_EN 0x60
|
||||||
|
#define WLED5_SINK_REG_MOD_EN_MASK BIT(7)
|
||||||
|
|
||||||
|
#define WLED5_SINK_REG_MOD_A_SRC_SEL 0x51
|
||||||
|
#define WLED5_SINK_REG_MOD_B_SRC_SEL 0x61
|
||||||
|
#define WLED5_SINK_REG_MOD_SRC_SEL_HIGH 0
|
||||||
|
#define WLED5_SINK_REG_MOD_SRC_SEL_EXT 0x03
|
||||||
|
#define WLED5_SINK_REG_MOD_SRC_SEL_MASK GENMASK(1, 0)
|
||||||
|
|
||||||
|
#define WLED5_SINK_REG_MOD_A_BRIGHTNESS_WIDTH_SEL 0x52
|
||||||
|
#define WLED5_SINK_REG_MOD_B_BRIGHTNESS_WIDTH_SEL 0x62
|
||||||
|
#define WLED5_SINK_REG_BRIGHTNESS_WIDTH_12B 0
|
||||||
|
#define WLED5_SINK_REG_BRIGHTNESS_WIDTH_15B 1
|
||||||
|
|
||||||
|
#define WLED5_SINK_REG_MOD_A_BRIGHTNESS_LSB 0x53
|
||||||
|
#define WLED5_SINK_REG_MOD_A_BRIGHTNESS_MSB 0x54
|
||||||
|
#define WLED5_SINK_REG_MOD_B_BRIGHTNESS_LSB 0x63
|
||||||
|
#define WLED5_SINK_REG_MOD_B_BRIGHTNESS_MSB 0x64
|
||||||
|
|
||||||
|
#define WLED5_SINK_REG_MOD_SYNC_BIT 0x65
|
||||||
|
#define WLED5_SINK_REG_SYNC_MOD_A_BIT BIT(0)
|
||||||
|
#define WLED5_SINK_REG_SYNC_MOD_B_BIT BIT(1)
|
||||||
|
#define WLED5_SINK_REG_SYNC_MASK GENMASK(1, 0)
|
||||||
|
|
||||||
|
/* WLED5 specific per-'string' registers below */
|
||||||
|
#define WLED5_SINK_REG_STR_FULL_SCALE_CURR(n) (0x72 + (n * 0x10))
|
||||||
|
|
||||||
|
#define WLED5_SINK_REG_STR_SRC_SEL(n) (0x73 + (n * 0x10))
|
||||||
|
#define WLED5_SINK_REG_SRC_SEL_MOD_A 0
|
||||||
|
#define WLED5_SINK_REG_SRC_SEL_MOD_B 1
|
||||||
|
#define WLED5_SINK_REG_SRC_SEL_MASK GENMASK(1, 0)
|
||||||
|
|
||||||
struct wled_var_cfg {
|
struct wled_var_cfg {
|
||||||
const u32 *values;
|
const u32 *values;
|
||||||
u32 (*fn)(u32);
|
u32 (*fn)(u32);
|
||||||
|
@ -125,6 +169,8 @@ struct wled_config {
|
||||||
u32 num_strings;
|
u32 num_strings;
|
||||||
u32 string_i_limit;
|
u32 string_i_limit;
|
||||||
u32 enabled_strings[WLED_MAX_STRINGS];
|
u32 enabled_strings[WLED_MAX_STRINGS];
|
||||||
|
u32 mod_sel;
|
||||||
|
u32 cabc_sel;
|
||||||
bool cs_out_en;
|
bool cs_out_en;
|
||||||
bool ext_gen;
|
bool ext_gen;
|
||||||
bool cabc;
|
bool cabc;
|
||||||
|
@ -147,14 +193,39 @@ struct wled {
|
||||||
u32 max_brightness;
|
u32 max_brightness;
|
||||||
u32 short_count;
|
u32 short_count;
|
||||||
u32 auto_detect_count;
|
u32 auto_detect_count;
|
||||||
|
u32 version;
|
||||||
bool disabled_by_short;
|
bool disabled_by_short;
|
||||||
bool has_short_detect;
|
bool has_short_detect;
|
||||||
|
bool cabc_disabled;
|
||||||
int short_irq;
|
int short_irq;
|
||||||
int ovp_irq;
|
int ovp_irq;
|
||||||
|
|
||||||
struct wled_config cfg;
|
struct wled_config cfg;
|
||||||
struct delayed_work ovp_work;
|
struct delayed_work ovp_work;
|
||||||
|
|
||||||
|
/* Configures the brightness. Applicable for wled3, wled4 and wled5 */
|
||||||
int (*wled_set_brightness)(struct wled *wled, u16 brightness);
|
int (*wled_set_brightness)(struct wled *wled, u16 brightness);
|
||||||
|
|
||||||
|
/* Configures the cabc register. Applicable for wled4 and wled5 */
|
||||||
|
int (*wled_cabc_config)(struct wled *wled, bool enable);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Toggles the sync bit for the brightness update to take place.
|
||||||
|
* Applicable for WLED3, WLED4 and WLED5.
|
||||||
|
*/
|
||||||
|
int (*wled_sync_toggle)(struct wled *wled);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Time to wait before checking the OVP status after wled module enable.
|
||||||
|
* Applicable for WLED4 and WLED5.
|
||||||
|
*/
|
||||||
|
int (*wled_ovp_delay)(struct wled *wled);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Determines if the auto string detection is required.
|
||||||
|
* Applicable for WLED4 and WLED5
|
||||||
|
*/
|
||||||
|
bool (*wled_auto_detection_required)(struct wled *wled);
|
||||||
};
|
};
|
||||||
|
|
||||||
static int wled3_set_brightness(struct wled *wled, u16 brightness)
|
static int wled3_set_brightness(struct wled *wled, u16 brightness)
|
||||||
|
@ -198,6 +269,28 @@ static int wled4_set_brightness(struct wled *wled, u16 brightness)
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static int wled5_set_brightness(struct wled *wled, u16 brightness)
|
||||||
|
{
|
||||||
|
int rc, offset;
|
||||||
|
u16 low_limit = wled->max_brightness * 1 / 1000;
|
||||||
|
u8 v[2];
|
||||||
|
|
||||||
|
/* WLED5's lower limit is 0.1% */
|
||||||
|
if (brightness < low_limit)
|
||||||
|
brightness = low_limit;
|
||||||
|
|
||||||
|
v[0] = brightness & 0xff;
|
||||||
|
v[1] = (brightness >> 8) & 0x7f;
|
||||||
|
|
||||||
|
offset = (wled->cfg.mod_sel == MOD_A) ?
|
||||||
|
WLED5_SINK_REG_MOD_A_BRIGHTNESS_LSB :
|
||||||
|
WLED5_SINK_REG_MOD_B_BRIGHTNESS_LSB;
|
||||||
|
|
||||||
|
rc = regmap_bulk_write(wled->regmap, wled->sink_addr + offset,
|
||||||
|
v, 2);
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
|
||||||
static void wled_ovp_work(struct work_struct *work)
|
static void wled_ovp_work(struct work_struct *work)
|
||||||
{
|
{
|
||||||
struct wled *wled = container_of(work,
|
struct wled *wled = container_of(work,
|
||||||
|
@ -237,7 +330,7 @@ static int wled_module_enable(struct wled *wled, int val)
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
static int wled_sync_toggle(struct wled *wled)
|
static int wled3_sync_toggle(struct wled *wled)
|
||||||
{
|
{
|
||||||
int rc;
|
int rc;
|
||||||
unsigned int mask = GENMASK(wled->max_string_count - 1, 0);
|
unsigned int mask = GENMASK(wled->max_string_count - 1, 0);
|
||||||
|
@ -255,6 +348,88 @@ static int wled_sync_toggle(struct wled *wled)
|
||||||
return rc;
|
return rc;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static int wled5_sync_toggle(struct wled *wled)
|
||||||
|
{
|
||||||
|
int rc;
|
||||||
|
u8 val;
|
||||||
|
|
||||||
|
val = (wled->cfg.mod_sel == MOD_A) ? WLED5_SINK_REG_SYNC_MOD_A_BIT :
|
||||||
|
WLED5_SINK_REG_SYNC_MOD_B_BIT;
|
||||||
|
rc = regmap_update_bits(wled->regmap,
|
||||||
|
wled->sink_addr + WLED5_SINK_REG_MOD_SYNC_BIT,
|
||||||
|
WLED5_SINK_REG_SYNC_MASK, val);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
return regmap_update_bits(wled->regmap,
|
||||||
|
wled->sink_addr + WLED5_SINK_REG_MOD_SYNC_BIT,
|
||||||
|
WLED5_SINK_REG_SYNC_MASK, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int wled_ovp_fault_status(struct wled *wled, bool *fault_set)
|
||||||
|
{
|
||||||
|
int rc;
|
||||||
|
u32 int_rt_sts, fault_sts;
|
||||||
|
|
||||||
|
*fault_set = false;
|
||||||
|
rc = regmap_read(wled->regmap,
|
||||||
|
wled->ctrl_addr + WLED3_CTRL_REG_INT_RT_STS,
|
||||||
|
&int_rt_sts);
|
||||||
|
if (rc < 0) {
|
||||||
|
dev_err(wled->dev, "Failed to read INT_RT_STS rc=%d\n", rc);
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
|
||||||
|
rc = regmap_read(wled->regmap,
|
||||||
|
wled->ctrl_addr + WLED3_CTRL_REG_FAULT_STATUS,
|
||||||
|
&fault_sts);
|
||||||
|
if (rc < 0) {
|
||||||
|
dev_err(wled->dev, "Failed to read FAULT_STATUS rc=%d\n", rc);
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (int_rt_sts & WLED3_CTRL_REG_OVP_FAULT_STATUS)
|
||||||
|
*fault_set = true;
|
||||||
|
|
||||||
|
if (wled->version == 4 && (fault_sts & WLED3_CTRL_REG_OVP_FAULT_BIT))
|
||||||
|
*fault_set = true;
|
||||||
|
|
||||||
|
if (wled->version == 5 && (fault_sts & (WLED3_CTRL_REG_OVP_FAULT_BIT |
|
||||||
|
WLED5_CTRL_REG_OVP_PRE_ALARM_BIT)))
|
||||||
|
*fault_set = true;
|
||||||
|
|
||||||
|
if (*fault_set)
|
||||||
|
dev_dbg(wled->dev, "WLED OVP fault detected, int_rt_sts=0x%x fault_sts=0x%x\n",
|
||||||
|
int_rt_sts, fault_sts);
|
||||||
|
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int wled4_ovp_delay(struct wled *wled)
|
||||||
|
{
|
||||||
|
return WLED_SOFT_START_DLY_US;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int wled5_ovp_delay(struct wled *wled)
|
||||||
|
{
|
||||||
|
int rc, delay_us;
|
||||||
|
u32 val;
|
||||||
|
u8 ovp_timer_ms[8] = {1, 2, 4, 8, 12, 16, 20, 24};
|
||||||
|
|
||||||
|
/* For WLED5, get the delay based on OVP timer */
|
||||||
|
rc = regmap_read(wled->regmap, wled->ctrl_addr +
|
||||||
|
WLED5_CTRL_REG_OVP_INT_CTL, &val);
|
||||||
|
if (rc < 0)
|
||||||
|
delay_us =
|
||||||
|
ovp_timer_ms[val & WLED5_CTRL_REG_OVP_INT_TIMER_MASK] * 1000;
|
||||||
|
else
|
||||||
|
delay_us = 2 * WLED_SOFT_START_DLY_US;
|
||||||
|
|
||||||
|
dev_dbg(wled->dev, "delay_time_us: %d\n", delay_us);
|
||||||
|
|
||||||
|
return delay_us;
|
||||||
|
}
|
||||||
|
|
||||||
static int wled_update_status(struct backlight_device *bl)
|
static int wled_update_status(struct backlight_device *bl)
|
||||||
{
|
{
|
||||||
struct wled *wled = bl_get_data(bl);
|
struct wled *wled = bl_get_data(bl);
|
||||||
|
@ -275,7 +450,7 @@ static int wled_update_status(struct backlight_device *bl)
|
||||||
goto unlock_mutex;
|
goto unlock_mutex;
|
||||||
}
|
}
|
||||||
|
|
||||||
rc = wled_sync_toggle(wled);
|
rc = wled->wled_sync_toggle(wled);
|
||||||
if (rc < 0) {
|
if (rc < 0) {
|
||||||
dev_err(wled->dev, "wled sync failed rc:%d\n", rc);
|
dev_err(wled->dev, "wled sync failed rc:%d\n", rc);
|
||||||
goto unlock_mutex;
|
goto unlock_mutex;
|
||||||
|
@ -298,6 +473,50 @@ unlock_mutex:
|
||||||
return rc;
|
return rc;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static int wled4_cabc_config(struct wled *wled, bool enable)
|
||||||
|
{
|
||||||
|
int i, j, rc;
|
||||||
|
u8 val;
|
||||||
|
|
||||||
|
for (i = 0; i < wled->cfg.num_strings; i++) {
|
||||||
|
j = wled->cfg.enabled_strings[i];
|
||||||
|
|
||||||
|
val = enable ? WLED4_SINK_REG_STR_CABC_MASK : 0;
|
||||||
|
rc = regmap_update_bits(wled->regmap, wled->sink_addr +
|
||||||
|
WLED4_SINK_REG_STR_CABC(j),
|
||||||
|
WLED4_SINK_REG_STR_CABC_MASK, val);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int wled5_cabc_config(struct wled *wled, bool enable)
|
||||||
|
{
|
||||||
|
int rc, offset;
|
||||||
|
u8 reg;
|
||||||
|
|
||||||
|
if (wled->cabc_disabled)
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
reg = enable ? wled->cfg.cabc_sel : 0;
|
||||||
|
offset = (wled->cfg.mod_sel == MOD_A) ? WLED5_SINK_REG_MOD_A_SRC_SEL :
|
||||||
|
WLED5_SINK_REG_MOD_B_SRC_SEL;
|
||||||
|
|
||||||
|
rc = regmap_update_bits(wled->regmap, wled->sink_addr + offset,
|
||||||
|
WLED5_SINK_REG_MOD_SRC_SEL_MASK, reg);
|
||||||
|
if (rc < 0) {
|
||||||
|
pr_err("Error in configuring CABC rc=%d\n", rc);
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!wled->cfg.cabc_sel)
|
||||||
|
wled->cabc_disabled = true;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
#define WLED_SHORT_DLY_MS 20
|
#define WLED_SHORT_DLY_MS 20
|
||||||
#define WLED_SHORT_CNT_MAX 5
|
#define WLED_SHORT_CNT_MAX 5
|
||||||
#define WLED_SHORT_RESET_CNT_DLY_US USEC_PER_SEC
|
#define WLED_SHORT_RESET_CNT_DLY_US USEC_PER_SEC
|
||||||
|
@ -345,9 +564,10 @@ unlock_mutex:
|
||||||
|
|
||||||
static void wled_auto_string_detection(struct wled *wled)
|
static void wled_auto_string_detection(struct wled *wled)
|
||||||
{
|
{
|
||||||
int rc = 0, i;
|
int rc = 0, i, delay_time_us;
|
||||||
u32 sink_config = 0, int_sts;
|
u32 sink_config = 0;
|
||||||
u8 sink_test = 0, sink_valid = 0, val;
|
u8 sink_test = 0, sink_valid = 0, val;
|
||||||
|
bool fault_set;
|
||||||
|
|
||||||
/* Read configured sink configuration */
|
/* Read configured sink configuration */
|
||||||
rc = regmap_read(wled->regmap, wled->sink_addr +
|
rc = regmap_read(wled->regmap, wled->sink_addr +
|
||||||
|
@ -376,14 +596,9 @@ static void wled_auto_string_detection(struct wled *wled)
|
||||||
}
|
}
|
||||||
|
|
||||||
if (wled->cfg.cabc) {
|
if (wled->cfg.cabc) {
|
||||||
for (i = 0; i < wled->cfg.num_strings; i++) {
|
rc = wled->wled_cabc_config(wled, false);
|
||||||
rc = regmap_update_bits(wled->regmap, wled->sink_addr +
|
if (rc < 0)
|
||||||
WLED4_SINK_REG_STR_CABC(i),
|
goto failed_detect;
|
||||||
WLED4_SINK_REG_STR_CABC_MASK,
|
|
||||||
0);
|
|
||||||
if (rc < 0)
|
|
||||||
goto failed_detect;
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Disable all sinks */
|
/* Disable all sinks */
|
||||||
|
@ -427,18 +642,17 @@ static void wled_auto_string_detection(struct wled *wled)
|
||||||
goto failed_detect;
|
goto failed_detect;
|
||||||
}
|
}
|
||||||
|
|
||||||
usleep_range(WLED_SOFT_START_DLY_US,
|
delay_time_us = wled->wled_ovp_delay(wled);
|
||||||
WLED_SOFT_START_DLY_US + 1000);
|
usleep_range(delay_time_us, delay_time_us + 1000);
|
||||||
|
|
||||||
rc = regmap_read(wled->regmap, wled->ctrl_addr +
|
rc = wled_ovp_fault_status(wled, &fault_set);
|
||||||
WLED3_CTRL_REG_INT_RT_STS, &int_sts);
|
|
||||||
if (rc < 0) {
|
if (rc < 0) {
|
||||||
dev_err(wled->dev, "Error in reading WLED3_CTRL_INT_RT_STS rc=%d\n",
|
dev_err(wled->dev, "Error in getting OVP fault_sts, rc=%d\n",
|
||||||
rc);
|
rc);
|
||||||
goto failed_detect;
|
goto failed_detect;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (int_sts & WLED3_CTRL_REG_OVP_FAULT_STATUS)
|
if (fault_set)
|
||||||
dev_dbg(wled->dev, "WLED OVP fault detected with SINK %d\n",
|
dev_dbg(wled->dev, "WLED OVP fault detected with SINK %d\n",
|
||||||
i + 1);
|
i + 1);
|
||||||
else
|
else
|
||||||
|
@ -478,30 +692,30 @@ static void wled_auto_string_detection(struct wled *wled)
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Enable valid sinks */
|
/* Enable valid sinks */
|
||||||
for (i = 0; i < wled->cfg.num_strings; i++) {
|
if (wled->version == 4) {
|
||||||
if (wled->cfg.cabc) {
|
for (i = 0; i < wled->cfg.num_strings; i++) {
|
||||||
rc = regmap_update_bits(wled->regmap, wled->sink_addr +
|
if (sink_config &
|
||||||
WLED4_SINK_REG_STR_CABC(i),
|
BIT(WLED4_SINK_REG_CURR_SINK_SHFT + i))
|
||||||
WLED4_SINK_REG_STR_CABC_MASK,
|
val = WLED4_SINK_REG_STR_MOD_MASK;
|
||||||
WLED4_SINK_REG_STR_CABC_MASK);
|
else
|
||||||
if (rc < 0)
|
/* Disable modulator_en for unused sink */
|
||||||
|
val = 0;
|
||||||
|
|
||||||
|
rc = regmap_write(wled->regmap, wled->sink_addr +
|
||||||
|
WLED4_SINK_REG_STR_MOD_EN(i), val);
|
||||||
|
if (rc < 0) {
|
||||||
|
dev_err(wled->dev, "Failed to configure MODULATOR_EN rc=%d\n",
|
||||||
|
rc);
|
||||||
goto failed_detect;
|
goto failed_detect;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (sink_config & BIT(WLED4_SINK_REG_CURR_SINK_SHFT + i))
|
|
||||||
val = WLED4_SINK_REG_STR_MOD_MASK;
|
|
||||||
else
|
|
||||||
val = 0x0; /* Disable modulator_en for unused sink */
|
|
||||||
|
|
||||||
rc = regmap_write(wled->regmap, wled->sink_addr +
|
|
||||||
WLED4_SINK_REG_STR_MOD_EN(i), val);
|
|
||||||
if (rc < 0) {
|
|
||||||
dev_err(wled->dev, "Failed to configure MODULATOR_EN rc=%d\n",
|
|
||||||
rc);
|
|
||||||
goto failed_detect;
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/* Enable CABC */
|
||||||
|
rc = wled->wled_cabc_config(wled, true);
|
||||||
|
if (rc < 0)
|
||||||
|
goto failed_detect;
|
||||||
|
|
||||||
/* Restore the feedback setting */
|
/* Restore the feedback setting */
|
||||||
rc = regmap_write(wled->regmap,
|
rc = regmap_write(wled->regmap,
|
||||||
wled->ctrl_addr + WLED3_CTRL_REG_FEEDBACK_CONTROL, 0);
|
wled->ctrl_addr + WLED3_CTRL_REG_FEEDBACK_CONTROL, 0);
|
||||||
|
@ -534,7 +748,8 @@ failed_detect:
|
||||||
|
|
||||||
#define WLED_AUTO_DETECT_OVP_COUNT 5
|
#define WLED_AUTO_DETECT_OVP_COUNT 5
|
||||||
#define WLED_AUTO_DETECT_CNT_DLY_US USEC_PER_SEC
|
#define WLED_AUTO_DETECT_CNT_DLY_US USEC_PER_SEC
|
||||||
static bool wled_auto_detection_required(struct wled *wled)
|
|
||||||
|
static bool wled4_auto_detection_required(struct wled *wled)
|
||||||
{
|
{
|
||||||
s64 elapsed_time_us;
|
s64 elapsed_time_us;
|
||||||
|
|
||||||
|
@ -567,32 +782,39 @@ static bool wled_auto_detection_required(struct wled *wled)
|
||||||
return false;
|
return false;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static bool wled5_auto_detection_required(struct wled *wled)
|
||||||
|
{
|
||||||
|
if (!wled->cfg.auto_detection_enabled)
|
||||||
|
return false;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Unlike WLED4, WLED5 has OVP fault density interrupt configuration
|
||||||
|
* i.e. to count the number of OVP alarms for a certain duration before
|
||||||
|
* triggering OVP fault interrupt. By default, number of OVP fault
|
||||||
|
* events counted before an interrupt is fired is 32 and the time
|
||||||
|
* interval is 12 ms. If we see one OVP fault interrupt, then that
|
||||||
|
* should qualify for a real OVP fault condition to run auto detection
|
||||||
|
* algorithm.
|
||||||
|
*/
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
static int wled_auto_detection_at_init(struct wled *wled)
|
static int wled_auto_detection_at_init(struct wled *wled)
|
||||||
{
|
{
|
||||||
int rc;
|
int rc;
|
||||||
u32 fault_status, rt_status;
|
bool fault_set;
|
||||||
|
|
||||||
if (!wled->cfg.auto_detection_enabled)
|
if (!wled->cfg.auto_detection_enabled)
|
||||||
return 0;
|
return 0;
|
||||||
|
|
||||||
rc = regmap_read(wled->regmap,
|
rc = wled_ovp_fault_status(wled, &fault_set);
|
||||||
wled->ctrl_addr + WLED3_CTRL_REG_INT_RT_STS,
|
|
||||||
&rt_status);
|
|
||||||
if (rc < 0) {
|
if (rc < 0) {
|
||||||
dev_err(wled->dev, "Failed to read RT status rc=%d\n", rc);
|
dev_err(wled->dev, "Error in getting OVP fault_sts, rc=%d\n",
|
||||||
|
rc);
|
||||||
return rc;
|
return rc;
|
||||||
}
|
}
|
||||||
|
|
||||||
rc = regmap_read(wled->regmap,
|
if (fault_set) {
|
||||||
wled->ctrl_addr + WLED3_CTRL_REG_FAULT_STATUS,
|
|
||||||
&fault_status);
|
|
||||||
if (rc < 0) {
|
|
||||||
dev_err(wled->dev, "Failed to read fault status rc=%d\n", rc);
|
|
||||||
return rc;
|
|
||||||
}
|
|
||||||
|
|
||||||
if ((rt_status & WLED3_CTRL_REG_OVP_FAULT_STATUS) ||
|
|
||||||
(fault_status & WLED3_CTRL_REG_OVP_FAULT_BIT)) {
|
|
||||||
mutex_lock(&wled->lock);
|
mutex_lock(&wled->lock);
|
||||||
wled_auto_string_detection(wled);
|
wled_auto_string_detection(wled);
|
||||||
mutex_unlock(&wled->lock);
|
mutex_unlock(&wled->lock);
|
||||||
|
@ -629,7 +851,7 @@ static irqreturn_t wled_ovp_irq_handler(int irq, void *_wled)
|
||||||
int_sts, fault_sts);
|
int_sts, fault_sts);
|
||||||
|
|
||||||
if (fault_sts & WLED3_CTRL_REG_OVP_FAULT_BIT) {
|
if (fault_sts & WLED3_CTRL_REG_OVP_FAULT_BIT) {
|
||||||
if (wled_auto_detection_required(wled)) {
|
if (wled->wled_auto_detection_required(wled)) {
|
||||||
mutex_lock(&wled->lock);
|
mutex_lock(&wled->lock);
|
||||||
wled_auto_string_detection(wled);
|
wled_auto_string_detection(wled);
|
||||||
mutex_unlock(&wled->lock);
|
mutex_unlock(&wled->lock);
|
||||||
|
@ -811,17 +1033,12 @@ static int wled4_setup(struct wled *wled)
|
||||||
wled->cfg.string_i_limit);
|
wled->cfg.string_i_limit);
|
||||||
if (rc < 0)
|
if (rc < 0)
|
||||||
return rc;
|
return rc;
|
||||||
|
|
||||||
addr = wled->sink_addr +
|
|
||||||
WLED4_SINK_REG_STR_CABC(j);
|
|
||||||
rc = regmap_update_bits(wled->regmap, addr,
|
|
||||||
WLED4_SINK_REG_STR_CABC_MASK,
|
|
||||||
wled->cfg.cabc ?
|
|
||||||
WLED4_SINK_REG_STR_CABC_MASK : 0);
|
|
||||||
if (rc < 0)
|
|
||||||
return rc;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
rc = wled4_cabc_config(wled, wled->cfg.cabc);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
rc = regmap_update_bits(wled->regmap, wled->ctrl_addr +
|
rc = regmap_update_bits(wled->regmap, wled->ctrl_addr +
|
||||||
WLED3_CTRL_REG_MOD_EN,
|
WLED3_CTRL_REG_MOD_EN,
|
||||||
WLED3_CTRL_REG_MOD_EN_MASK,
|
WLED3_CTRL_REG_MOD_EN_MASK,
|
||||||
|
@ -835,7 +1052,7 @@ static int wled4_setup(struct wled *wled)
|
||||||
if (rc < 0)
|
if (rc < 0)
|
||||||
return rc;
|
return rc;
|
||||||
|
|
||||||
rc = wled_sync_toggle(wled);
|
rc = wled->wled_sync_toggle(wled);
|
||||||
if (rc < 0) {
|
if (rc < 0) {
|
||||||
dev_err(wled->dev, "Failed to toggle sync reg rc:%d\n", rc);
|
dev_err(wled->dev, "Failed to toggle sync reg rc:%d\n", rc);
|
||||||
return rc;
|
return rc;
|
||||||
|
@ -857,6 +1074,119 @@ static const struct wled_config wled4_config_defaults = {
|
||||||
.auto_detection_enabled = false,
|
.auto_detection_enabled = false,
|
||||||
};
|
};
|
||||||
|
|
||||||
|
static int wled5_setup(struct wled *wled)
|
||||||
|
{
|
||||||
|
int rc, temp, i, j, offset;
|
||||||
|
u8 sink_en = 0;
|
||||||
|
u16 addr;
|
||||||
|
u32 val;
|
||||||
|
|
||||||
|
rc = regmap_update_bits(wled->regmap,
|
||||||
|
wled->ctrl_addr + WLED3_CTRL_REG_OVP,
|
||||||
|
WLED5_CTRL_REG_OVP_MASK, wled->cfg.ovp);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
rc = regmap_update_bits(wled->regmap,
|
||||||
|
wled->ctrl_addr + WLED3_CTRL_REG_ILIMIT,
|
||||||
|
WLED3_CTRL_REG_ILIMIT_MASK,
|
||||||
|
wled->cfg.boost_i_limit);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
rc = regmap_update_bits(wled->regmap,
|
||||||
|
wled->ctrl_addr + WLED3_CTRL_REG_FREQ,
|
||||||
|
WLED3_CTRL_REG_FREQ_MASK,
|
||||||
|
wled->cfg.switch_freq);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
/* Per sink/string configuration */
|
||||||
|
for (i = 0; i < wled->cfg.num_strings; ++i) {
|
||||||
|
j = wled->cfg.enabled_strings[i];
|
||||||
|
addr = wled->sink_addr +
|
||||||
|
WLED4_SINK_REG_STR_FULL_SCALE_CURR(j);
|
||||||
|
rc = regmap_update_bits(wled->regmap, addr,
|
||||||
|
WLED4_SINK_REG_STR_FULL_SCALE_CURR_MASK,
|
||||||
|
wled->cfg.string_i_limit);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
addr = wled->sink_addr + WLED5_SINK_REG_STR_SRC_SEL(j);
|
||||||
|
rc = regmap_update_bits(wled->regmap, addr,
|
||||||
|
WLED5_SINK_REG_SRC_SEL_MASK,
|
||||||
|
wled->cfg.mod_sel == MOD_A ?
|
||||||
|
WLED5_SINK_REG_SRC_SEL_MOD_A :
|
||||||
|
WLED5_SINK_REG_SRC_SEL_MOD_B);
|
||||||
|
|
||||||
|
temp = j + WLED4_SINK_REG_CURR_SINK_SHFT;
|
||||||
|
sink_en |= 1 << temp;
|
||||||
|
}
|
||||||
|
|
||||||
|
rc = wled5_cabc_config(wled, wled->cfg.cabc_sel ? true : false);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
/* Enable one of the modulators A or B based on mod_sel */
|
||||||
|
addr = wled->sink_addr + WLED5_SINK_REG_MOD_A_EN;
|
||||||
|
val = (wled->cfg.mod_sel == MOD_A) ? WLED5_SINK_REG_MOD_EN_MASK : 0;
|
||||||
|
rc = regmap_update_bits(wled->regmap, addr,
|
||||||
|
WLED5_SINK_REG_MOD_EN_MASK, val);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
addr = wled->sink_addr + WLED5_SINK_REG_MOD_B_EN;
|
||||||
|
val = (wled->cfg.mod_sel == MOD_B) ? WLED5_SINK_REG_MOD_EN_MASK : 0;
|
||||||
|
rc = regmap_update_bits(wled->regmap, addr,
|
||||||
|
WLED5_SINK_REG_MOD_EN_MASK, val);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
offset = (wled->cfg.mod_sel == MOD_A) ?
|
||||||
|
WLED5_SINK_REG_MOD_A_BRIGHTNESS_WIDTH_SEL :
|
||||||
|
WLED5_SINK_REG_MOD_B_BRIGHTNESS_WIDTH_SEL;
|
||||||
|
|
||||||
|
addr = wled->sink_addr + offset;
|
||||||
|
val = (wled->max_brightness == WLED5_SINK_REG_BRIGHT_MAX_15B) ?
|
||||||
|
WLED5_SINK_REG_BRIGHTNESS_WIDTH_15B :
|
||||||
|
WLED5_SINK_REG_BRIGHTNESS_WIDTH_12B;
|
||||||
|
rc = regmap_write(wled->regmap, addr, val);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
rc = regmap_update_bits(wled->regmap,
|
||||||
|
wled->sink_addr + WLED4_SINK_REG_CURR_SINK,
|
||||||
|
WLED4_SINK_REG_CURR_SINK_MASK, sink_en);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
/* This updates only FSC configuration in WLED5 */
|
||||||
|
rc = wled->wled_sync_toggle(wled);
|
||||||
|
if (rc < 0) {
|
||||||
|
pr_err("Failed to toggle sync reg rc:%d\n", rc);
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
|
||||||
|
rc = wled_auto_detection_at_init(wled);
|
||||||
|
if (rc < 0)
|
||||||
|
return rc;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct wled_config wled5_config_defaults = {
|
||||||
|
.boost_i_limit = 5,
|
||||||
|
.string_i_limit = 10,
|
||||||
|
.ovp = 4,
|
||||||
|
.num_strings = 4,
|
||||||
|
.switch_freq = 11,
|
||||||
|
.mod_sel = 0,
|
||||||
|
.cabc_sel = 0,
|
||||||
|
.cabc = false,
|
||||||
|
.external_pfet = false,
|
||||||
|
.auto_detection_enabled = false,
|
||||||
|
};
|
||||||
|
|
||||||
static const u32 wled3_boost_i_limit_values[] = {
|
static const u32 wled3_boost_i_limit_values[] = {
|
||||||
105, 385, 525, 805, 980, 1260, 1400, 1680,
|
105, 385, 525, 805, 980, 1260, 1400, 1680,
|
||||||
};
|
};
|
||||||
|
@ -875,6 +1205,16 @@ static const struct wled_var_cfg wled4_boost_i_limit_cfg = {
|
||||||
.size = ARRAY_SIZE(wled4_boost_i_limit_values),
|
.size = ARRAY_SIZE(wled4_boost_i_limit_values),
|
||||||
};
|
};
|
||||||
|
|
||||||
|
static inline u32 wled5_boost_i_limit_values_fn(u32 idx)
|
||||||
|
{
|
||||||
|
return 525 + (idx * 175);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct wled_var_cfg wled5_boost_i_limit_cfg = {
|
||||||
|
.fn = wled5_boost_i_limit_values_fn,
|
||||||
|
.size = 8,
|
||||||
|
};
|
||||||
|
|
||||||
static const u32 wled3_ovp_values[] = {
|
static const u32 wled3_ovp_values[] = {
|
||||||
35, 32, 29, 27,
|
35, 32, 29, 27,
|
||||||
};
|
};
|
||||||
|
@ -893,6 +1233,21 @@ static const struct wled_var_cfg wled4_ovp_cfg = {
|
||||||
.size = ARRAY_SIZE(wled4_ovp_values),
|
.size = ARRAY_SIZE(wled4_ovp_values),
|
||||||
};
|
};
|
||||||
|
|
||||||
|
static inline u32 wled5_ovp_values_fn(u32 idx)
|
||||||
|
{
|
||||||
|
/*
|
||||||
|
* 0000 - 38.5 V
|
||||||
|
* 0001 - 37 V ..
|
||||||
|
* 1111 - 16 V
|
||||||
|
*/
|
||||||
|
return 38500 - (idx * 1500);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct wled_var_cfg wled5_ovp_cfg = {
|
||||||
|
.fn = wled5_ovp_values_fn,
|
||||||
|
.size = 16,
|
||||||
|
};
|
||||||
|
|
||||||
static u32 wled3_num_strings_values_fn(u32 idx)
|
static u32 wled3_num_strings_values_fn(u32 idx)
|
||||||
{
|
{
|
||||||
return idx + 1;
|
return idx + 1;
|
||||||
|
@ -940,6 +1295,14 @@ static const struct wled_var_cfg wled4_string_cfg = {
|
||||||
.size = 16,
|
.size = 16,
|
||||||
};
|
};
|
||||||
|
|
||||||
|
static const struct wled_var_cfg wled5_mod_sel_cfg = {
|
||||||
|
.size = 2,
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct wled_var_cfg wled5_cabc_sel_cfg = {
|
||||||
|
.size = 4,
|
||||||
|
};
|
||||||
|
|
||||||
static u32 wled_values(const struct wled_var_cfg *cfg, u32 idx)
|
static u32 wled_values(const struct wled_var_cfg *cfg, u32 idx)
|
||||||
{
|
{
|
||||||
if (idx >= cfg->size)
|
if (idx >= cfg->size)
|
||||||
|
@ -951,7 +1314,7 @@ static u32 wled_values(const struct wled_var_cfg *cfg, u32 idx)
|
||||||
return idx;
|
return idx;
|
||||||
}
|
}
|
||||||
|
|
||||||
static int wled_configure(struct wled *wled, int version)
|
static int wled_configure(struct wled *wled)
|
||||||
{
|
{
|
||||||
struct wled_config *cfg = &wled->cfg;
|
struct wled_config *cfg = &wled->cfg;
|
||||||
struct device *dev = wled->dev;
|
struct device *dev = wled->dev;
|
||||||
|
@ -1016,6 +1379,44 @@ static int wled_configure(struct wled *wled, int version)
|
||||||
},
|
},
|
||||||
};
|
};
|
||||||
|
|
||||||
|
const struct wled_u32_opts wled5_opts[] = {
|
||||||
|
{
|
||||||
|
.name = "qcom,current-boost-limit",
|
||||||
|
.val_ptr = &cfg->boost_i_limit,
|
||||||
|
.cfg = &wled5_boost_i_limit_cfg,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.name = "qcom,current-limit-microamp",
|
||||||
|
.val_ptr = &cfg->string_i_limit,
|
||||||
|
.cfg = &wled4_string_i_limit_cfg,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.name = "qcom,ovp-millivolt",
|
||||||
|
.val_ptr = &cfg->ovp,
|
||||||
|
.cfg = &wled5_ovp_cfg,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.name = "qcom,switching-freq",
|
||||||
|
.val_ptr = &cfg->switch_freq,
|
||||||
|
.cfg = &wled3_switch_freq_cfg,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.name = "qcom,num-strings",
|
||||||
|
.val_ptr = &cfg->num_strings,
|
||||||
|
.cfg = &wled4_num_strings_cfg,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.name = "qcom,modulator-sel",
|
||||||
|
.val_ptr = &cfg->mod_sel,
|
||||||
|
.cfg = &wled5_mod_sel_cfg,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.name = "qcom,cabc-sel",
|
||||||
|
.val_ptr = &cfg->cabc_sel,
|
||||||
|
.cfg = &wled5_cabc_sel_cfg,
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
const struct wled_bool_opts bool_opts[] = {
|
const struct wled_bool_opts bool_opts[] = {
|
||||||
{ "qcom,cs-out", &cfg->cs_out_en, },
|
{ "qcom,cs-out", &cfg->cs_out_en, },
|
||||||
{ "qcom,ext-gen", &cfg->ext_gen, },
|
{ "qcom,ext-gen", &cfg->ext_gen, },
|
||||||
|
@ -1035,12 +1436,13 @@ static int wled_configure(struct wled *wled, int version)
|
||||||
if (rc)
|
if (rc)
|
||||||
wled->name = devm_kasprintf(dev, GFP_KERNEL, "%pOFn", dev->of_node);
|
wled->name = devm_kasprintf(dev, GFP_KERNEL, "%pOFn", dev->of_node);
|
||||||
|
|
||||||
switch (version) {
|
switch (wled->version) {
|
||||||
case 3:
|
case 3:
|
||||||
u32_opts = wled3_opts;
|
u32_opts = wled3_opts;
|
||||||
size = ARRAY_SIZE(wled3_opts);
|
size = ARRAY_SIZE(wled3_opts);
|
||||||
*cfg = wled3_config_defaults;
|
*cfg = wled3_config_defaults;
|
||||||
wled->wled_set_brightness = wled3_set_brightness;
|
wled->wled_set_brightness = wled3_set_brightness;
|
||||||
|
wled->wled_sync_toggle = wled3_sync_toggle;
|
||||||
wled->max_string_count = 3;
|
wled->max_string_count = 3;
|
||||||
wled->sink_addr = wled->ctrl_addr;
|
wled->sink_addr = wled->ctrl_addr;
|
||||||
break;
|
break;
|
||||||
|
@ -1050,6 +1452,31 @@ static int wled_configure(struct wled *wled, int version)
|
||||||
size = ARRAY_SIZE(wled4_opts);
|
size = ARRAY_SIZE(wled4_opts);
|
||||||
*cfg = wled4_config_defaults;
|
*cfg = wled4_config_defaults;
|
||||||
wled->wled_set_brightness = wled4_set_brightness;
|
wled->wled_set_brightness = wled4_set_brightness;
|
||||||
|
wled->wled_sync_toggle = wled3_sync_toggle;
|
||||||
|
wled->wled_cabc_config = wled4_cabc_config;
|
||||||
|
wled->wled_ovp_delay = wled4_ovp_delay;
|
||||||
|
wled->wled_auto_detection_required =
|
||||||
|
wled4_auto_detection_required;
|
||||||
|
wled->max_string_count = 4;
|
||||||
|
|
||||||
|
prop_addr = of_get_address(dev->of_node, 1, NULL, NULL);
|
||||||
|
if (!prop_addr) {
|
||||||
|
dev_err(wled->dev, "invalid IO resources\n");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
wled->sink_addr = be32_to_cpu(*prop_addr);
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 5:
|
||||||
|
u32_opts = wled5_opts;
|
||||||
|
size = ARRAY_SIZE(wled5_opts);
|
||||||
|
*cfg = wled5_config_defaults;
|
||||||
|
wled->wled_set_brightness = wled5_set_brightness;
|
||||||
|
wled->wled_sync_toggle = wled5_sync_toggle;
|
||||||
|
wled->wled_cabc_config = wled5_cabc_config;
|
||||||
|
wled->wled_ovp_delay = wled5_ovp_delay;
|
||||||
|
wled->wled_auto_detection_required =
|
||||||
|
wled5_auto_detection_required;
|
||||||
wled->max_string_count = 4;
|
wled->max_string_count = 4;
|
||||||
|
|
||||||
prop_addr = of_get_address(dev->of_node, 1, NULL, NULL);
|
prop_addr = of_get_address(dev->of_node, 1, NULL, NULL);
|
||||||
|
@ -1186,7 +1613,6 @@ static int wled_probe(struct platform_device *pdev)
|
||||||
struct backlight_device *bl;
|
struct backlight_device *bl;
|
||||||
struct wled *wled;
|
struct wled *wled;
|
||||||
struct regmap *regmap;
|
struct regmap *regmap;
|
||||||
int version;
|
|
||||||
u32 val;
|
u32 val;
|
||||||
int rc;
|
int rc;
|
||||||
|
|
||||||
|
@ -1203,18 +1629,22 @@ static int wled_probe(struct platform_device *pdev)
|
||||||
wled->regmap = regmap;
|
wled->regmap = regmap;
|
||||||
wled->dev = &pdev->dev;
|
wled->dev = &pdev->dev;
|
||||||
|
|
||||||
version = (uintptr_t)of_device_get_match_data(&pdev->dev);
|
wled->version = (uintptr_t)of_device_get_match_data(&pdev->dev);
|
||||||
if (!version) {
|
if (!wled->version) {
|
||||||
dev_err(&pdev->dev, "Unknown device version\n");
|
dev_err(&pdev->dev, "Unknown device version\n");
|
||||||
return -ENODEV;
|
return -ENODEV;
|
||||||
}
|
}
|
||||||
|
|
||||||
mutex_init(&wled->lock);
|
mutex_init(&wled->lock);
|
||||||
rc = wled_configure(wled, version);
|
rc = wled_configure(wled);
|
||||||
if (rc)
|
if (rc)
|
||||||
return rc;
|
return rc;
|
||||||
|
|
||||||
switch (version) {
|
val = WLED3_SINK_REG_BRIGHT_MAX;
|
||||||
|
of_property_read_u32(pdev->dev.of_node, "max-brightness", &val);
|
||||||
|
wled->max_brightness = val;
|
||||||
|
|
||||||
|
switch (wled->version) {
|
||||||
case 3:
|
case 3:
|
||||||
wled->cfg.auto_detection_enabled = false;
|
wled->cfg.auto_detection_enabled = false;
|
||||||
rc = wled3_setup(wled);
|
rc = wled3_setup(wled);
|
||||||
|
@ -1233,6 +1663,18 @@ static int wled_probe(struct platform_device *pdev)
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
|
||||||
|
case 5:
|
||||||
|
wled->has_short_detect = true;
|
||||||
|
if (wled->cfg.cabc_sel)
|
||||||
|
wled->max_brightness = WLED5_SINK_REG_BRIGHT_MAX_12B;
|
||||||
|
|
||||||
|
rc = wled5_setup(wled);
|
||||||
|
if (rc) {
|
||||||
|
dev_err(&pdev->dev, "wled5_setup failed\n");
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
default:
|
default:
|
||||||
dev_err(wled->dev, "Invalid WLED version\n");
|
dev_err(wled->dev, "Invalid WLED version\n");
|
||||||
break;
|
break;
|
||||||
|
@ -1254,7 +1696,7 @@ static int wled_probe(struct platform_device *pdev)
|
||||||
memset(&props, 0, sizeof(struct backlight_properties));
|
memset(&props, 0, sizeof(struct backlight_properties));
|
||||||
props.type = BACKLIGHT_RAW;
|
props.type = BACKLIGHT_RAW;
|
||||||
props.brightness = val;
|
props.brightness = val;
|
||||||
props.max_brightness = WLED3_SINK_REG_BRIGHT_MAX;
|
props.max_brightness = wled->max_brightness;
|
||||||
bl = devm_backlight_device_register(&pdev->dev, wled->name,
|
bl = devm_backlight_device_register(&pdev->dev, wled->name,
|
||||||
&pdev->dev, wled,
|
&pdev->dev, wled,
|
||||||
&wled_ops, &props);
|
&wled_ops, &props);
|
||||||
|
@ -1277,6 +1719,7 @@ static const struct of_device_id wled_match_table[] = {
|
||||||
{ .compatible = "qcom,pm8941-wled", .data = (void *)3 },
|
{ .compatible = "qcom,pm8941-wled", .data = (void *)3 },
|
||||||
{ .compatible = "qcom,pmi8998-wled", .data = (void *)4 },
|
{ .compatible = "qcom,pmi8998-wled", .data = (void *)4 },
|
||||||
{ .compatible = "qcom,pm660l-wled", .data = (void *)4 },
|
{ .compatible = "qcom,pm660l-wled", .data = (void *)4 },
|
||||||
|
{ .compatible = "qcom,pm8150l-wled", .data = (void *)5 },
|
||||||
{}
|
{}
|
||||||
};
|
};
|
||||||
MODULE_DEVICE_TABLE(of, wled_match_table);
|
MODULE_DEVICE_TABLE(of, wled_match_table);
|
||||||
|
|
|
@ -190,6 +190,7 @@ extern void backlight_force_update(struct backlight_device *bd,
|
||||||
extern int backlight_register_notifier(struct notifier_block *nb);
|
extern int backlight_register_notifier(struct notifier_block *nb);
|
||||||
extern int backlight_unregister_notifier(struct notifier_block *nb);
|
extern int backlight_unregister_notifier(struct notifier_block *nb);
|
||||||
extern struct backlight_device *backlight_device_get_by_type(enum backlight_type type);
|
extern struct backlight_device *backlight_device_get_by_type(enum backlight_type type);
|
||||||
|
struct backlight_device *backlight_device_get_by_name(const char *name);
|
||||||
extern int backlight_device_set_brightness(struct backlight_device *bd, unsigned long brightness);
|
extern int backlight_device_set_brightness(struct backlight_device *bd, unsigned long brightness);
|
||||||
|
|
||||||
#define to_backlight_device(obj) container_of(obj, struct backlight_device, dev)
|
#define to_backlight_device(obj) container_of(obj, struct backlight_device, dev)
|
||||||
|
|
|
@ -1,17 +0,0 @@
|
||||||
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
||||||
/*
|
|
||||||
* l4f00242t03.h -- Platform glue for Epson L4F00242T03 LCD
|
|
||||||
*
|
|
||||||
* Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
|
|
||||||
* Based on Marek Vasut work in lms283gf05.h
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef _INCLUDE_LINUX_SPI_L4F00242T03_H_
|
|
||||||
#define _INCLUDE_LINUX_SPI_L4F00242T03_H_
|
|
||||||
|
|
||||||
struct l4f00242t03_pdata {
|
|
||||||
unsigned int reset_gpio;
|
|
||||||
unsigned int data_enable_gpio;
|
|
||||||
};
|
|
||||||
|
|
||||||
#endif /* _INCLUDE_LINUX_SPI_L4F00242T03_H_ */
|
|
Loading…
Reference in a new issue