![Linus Torvalds](/assets/img/avatar_default.png)
cycle: Core changes: - Device links can optionally be added between a pin control producer and its consumers. This will affect how the system power management is handled: a pin controller will not suspend before all of its consumers have been suspended. This was necessary for the ST Microelectronics STMFX expander and need to be tested on other systems as well: it makes sense to make this default in the long run. Right now it is opt-in per driver. - Drive strength can be specified in microamps. With decreases in silicon technology, milliamps isn't granular enough, let's make it possible to select drive strengths in microamps. Right now the Meson (AMlogic) driver needs this. New drivers: - New subdriver for the Tegra 194 SoC. - New subdriver for the Qualcomm SDM845. - New subdriver for the Qualcomm SM8150. - New subdriver for the Freescale i.MX8MN (Freescale is now a product line of NXP). - New subdriver for Marvell MV98DX1135. Driver improvements: - The Bitmain BM1880 driver now supports pin config in addition to muxing. - The Qualcomm drivers can now reserve some GPIOs as taken aside and not usable for users. This is used in ACPI systems to take out some GPIO lines used by the BIOS so that noone else (neither kernel nor userspace) will play with them by mistake and crash the machine. - A slew of refurbishing around the Aspeed drivers (board management controllers for servers) in preparation for the new Aspeed AST2600 SoC. - A slew of improvements over the SH PFC drivers as usual. - Misc cleanups and fixes. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl0oTPcACgkQQRCzN7AZ XXNTsw//aNPfkJS8gRszv58G56lyuO8h6Cq4m5eDpzhlpjx5qjELgi9h2UNGINqD 7CWxo35ufbKe0fDIcqpXmtuDMtSu6MuKT3SMepuw9uf9wxyndK4RIuyb0lpAJrx2 +NMPxzS+ARlrMmcfvXPRyPWHqAkXsQk6zcCgiuNCPtROkOZgs1YZ3+pemZw2/FMq gSLTO/95p0TPWr6YAlpByqfsA1A/onEm9HOiU2INV7DrAfUj7mnkuC1nZ4IJDFcv Gn6qQVQPah+MBzkwt4WXy5kDRozCIbg7x+FQBw3KAO23TrLDTFuNsYIWGFcP2CN2 eT8iSP3cWrXNUuEgcPD59aO07rhFooT+QBQFt2ih1dJCV1u/795wb57nxSh1YDcO M2tG+AW2EZky65FXwhLW2rq3LvmTM4kiEz3mA/DrcOAKvvQllK+6FKEhNy0StstP yvvlqoXdgH3sfOnWTAyHr35qA/pMuGEXSryWTJPqpflCvZ3wxNk+IV5nyPAtfaFz CK7U0Ya7NaEp/5ZlpE720apJ4uSqmRrLwk5Y1eKQvT46mGOk3rC9ZPIMXc8mB10/ mJ9mTubi1t4uIPnBl/T1T7f8QhNtr9hOY6wjLf1LoMeJ1XVNBqA+2uydOlBJ1iop RQ7y/Jl1SZ/gBzKCmvjPHT2+0Oui9oXGd9bQi0xQKO5Lus/nAIg= =Wdw1 -----END PGP SIGNATURE----- Merge tag 'pinctrl-v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "This is the bulk of pin control changes for the v5.3 kernel cycle: Core changes: - Device links can optionally be added between a pin control producer and its consumers. This will affect how the system power management is handled: a pin controller will not suspend before all of its consumers have been suspended. This was necessary for the ST Microelectronics STMFX expander and need to be tested on other systems as well: it makes sense to make this default in the long run. Right now it is opt-in per driver. - Drive strength can be specified in microamps. With decreases in silicon technology, milliamps isn't granular enough, let's make it possible to select drive strengths in microamps. Right now the Meson (AMlogic) driver needs this. New drivers: - New subdriver for the Tegra 194 SoC. - New subdriver for the Qualcomm SDM845. - New subdriver for the Qualcomm SM8150. - New subdriver for the Freescale i.MX8MN (Freescale is now a product line of NXP). - New subdriver for Marvell MV98DX1135. Driver improvements: - The Bitmain BM1880 driver now supports pin config in addition to muxing. - The Qualcomm drivers can now reserve some GPIOs as taken aside and not usable for users. This is used in ACPI systems to take out some GPIO lines used by the BIOS so that noone else (neither kernel nor userspace) will play with them by mistake and crash the machine. - A slew of refurbishing around the Aspeed drivers (board management controllers for servers) in preparation for the new Aspeed AST2600 SoC. - A slew of improvements over the SH PFC drivers as usual. - Misc cleanups and fixes" * tag 'pinctrl-v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (106 commits) pinctrl: aspeed: Strip moved macros and structs from private header pinctrl: aspeed: Fix missed include pinctrl: baytrail: Use GENMASK() consistently pinctrl: baytrail: Re-use data structures from pinctrl-intel.h pinctrl: baytrail: Use defined macro instead of magic in byt_get_gpio_mux() pinctrl: qcom: Add SM8150 pinctrl driver dt-bindings: pinctrl: qcom: Add SM8150 pinctrl binding dt-bindings: pinctrl: qcom: Document missing gpio nodes pinctrl: aspeed: Add implementation-related documentation pinctrl: aspeed: Split out pinmux from general pinctrl pinctrl: aspeed: Clarify comment about strapping W1C pinctrl: aspeed: Correct comment that is no longer true MAINTAINERS: Add entry for ASPEED pinctrl drivers dt-bindings: pinctrl: aspeed: Convert AST2500 bindings to json-schema dt-bindings: pinctrl: aspeed: Convert AST2400 bindings to json-schema dt-bindings: pinctrl: aspeed: Split bindings document in two pinctrl: qcom: Add irq_enable callback for msm gpio pinctrl: madera: Fixup SPDX headers pinctrl: qcom: sdm845: Fix CONFIG preprocessor guard pinctrl: tegra: Add bitmask support for parked bits ...
838 lines
26 KiB
C
838 lines
26 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Abilis Systems TB10x pin control driver
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*
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* Copyright (C) Abilis Systems 2012
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*
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* Author: Christian Ruppert <christian.ruppert@abilis.com>
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*/
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#include <linux/stringify.h>
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#include <linux/pinctrl/pinctrl.h>
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#include <linux/pinctrl/pinmux.h>
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#include <linux/pinctrl/machine.h>
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#include <linux/platform_device.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/slab.h>
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#include "pinctrl-utils.h"
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#define TB10X_PORT1 (0)
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#define TB10X_PORT2 (16)
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#define TB10X_PORT3 (32)
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#define TB10X_PORT4 (48)
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#define TB10X_PORT5 (128)
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#define TB10X_PORT6 (64)
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#define TB10X_PORT7 (80)
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#define TB10X_PORT8 (96)
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#define TB10X_PORT9 (112)
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#define TB10X_GPIOS (256)
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#define PCFG_PORT_BITWIDTH (2)
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#define PCFG_PORT_MASK(PORT) \
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(((1 << PCFG_PORT_BITWIDTH) - 1) << (PCFG_PORT_BITWIDTH * (PORT)))
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static const struct pinctrl_pin_desc tb10x_pins[] = {
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/* Port 1 */
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PINCTRL_PIN(TB10X_PORT1 + 0, "MICLK_S0"),
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PINCTRL_PIN(TB10X_PORT1 + 1, "MISTRT_S0"),
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PINCTRL_PIN(TB10X_PORT1 + 2, "MIVAL_S0"),
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PINCTRL_PIN(TB10X_PORT1 + 3, "MDI_S0"),
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PINCTRL_PIN(TB10X_PORT1 + 4, "GPIOA0"),
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PINCTRL_PIN(TB10X_PORT1 + 5, "GPIOA1"),
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PINCTRL_PIN(TB10X_PORT1 + 6, "GPIOA2"),
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PINCTRL_PIN(TB10X_PORT1 + 7, "MDI_S1"),
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PINCTRL_PIN(TB10X_PORT1 + 8, "MIVAL_S1"),
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PINCTRL_PIN(TB10X_PORT1 + 9, "MISTRT_S1"),
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PINCTRL_PIN(TB10X_PORT1 + 10, "MICLK_S1"),
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/* Port 2 */
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PINCTRL_PIN(TB10X_PORT2 + 0, "MICLK_S2"),
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PINCTRL_PIN(TB10X_PORT2 + 1, "MISTRT_S2"),
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PINCTRL_PIN(TB10X_PORT2 + 2, "MIVAL_S2"),
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PINCTRL_PIN(TB10X_PORT2 + 3, "MDI_S2"),
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PINCTRL_PIN(TB10X_PORT2 + 4, "GPIOC0"),
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PINCTRL_PIN(TB10X_PORT2 + 5, "GPIOC1"),
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PINCTRL_PIN(TB10X_PORT2 + 6, "GPIOC2"),
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PINCTRL_PIN(TB10X_PORT2 + 7, "MDI_S3"),
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PINCTRL_PIN(TB10X_PORT2 + 8, "MIVAL_S3"),
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PINCTRL_PIN(TB10X_PORT2 + 9, "MISTRT_S3"),
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PINCTRL_PIN(TB10X_PORT2 + 10, "MICLK_S3"),
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/* Port 3 */
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PINCTRL_PIN(TB10X_PORT3 + 0, "MICLK_S4"),
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PINCTRL_PIN(TB10X_PORT3 + 1, "MISTRT_S4"),
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PINCTRL_PIN(TB10X_PORT3 + 2, "MIVAL_S4"),
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PINCTRL_PIN(TB10X_PORT3 + 3, "MDI_S4"),
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PINCTRL_PIN(TB10X_PORT3 + 4, "GPIOE0"),
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PINCTRL_PIN(TB10X_PORT3 + 5, "GPIOE1"),
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PINCTRL_PIN(TB10X_PORT3 + 6, "GPIOE2"),
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PINCTRL_PIN(TB10X_PORT3 + 7, "MDI_S5"),
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PINCTRL_PIN(TB10X_PORT3 + 8, "MIVAL_S5"),
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PINCTRL_PIN(TB10X_PORT3 + 9, "MISTRT_S5"),
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PINCTRL_PIN(TB10X_PORT3 + 10, "MICLK_S5"),
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/* Port 4 */
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PINCTRL_PIN(TB10X_PORT4 + 0, "MICLK_S6"),
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PINCTRL_PIN(TB10X_PORT4 + 1, "MISTRT_S6"),
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PINCTRL_PIN(TB10X_PORT4 + 2, "MIVAL_S6"),
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PINCTRL_PIN(TB10X_PORT4 + 3, "MDI_S6"),
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PINCTRL_PIN(TB10X_PORT4 + 4, "GPIOG0"),
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PINCTRL_PIN(TB10X_PORT4 + 5, "GPIOG1"),
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PINCTRL_PIN(TB10X_PORT4 + 6, "GPIOG2"),
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PINCTRL_PIN(TB10X_PORT4 + 7, "MDI_S7"),
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PINCTRL_PIN(TB10X_PORT4 + 8, "MIVAL_S7"),
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PINCTRL_PIN(TB10X_PORT4 + 9, "MISTRT_S7"),
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PINCTRL_PIN(TB10X_PORT4 + 10, "MICLK_S7"),
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/* Port 5 */
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PINCTRL_PIN(TB10X_PORT5 + 0, "PC_CE1N"),
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PINCTRL_PIN(TB10X_PORT5 + 1, "PC_CE2N"),
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PINCTRL_PIN(TB10X_PORT5 + 2, "PC_REGN"),
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PINCTRL_PIN(TB10X_PORT5 + 3, "PC_INPACKN"),
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PINCTRL_PIN(TB10X_PORT5 + 4, "PC_OEN"),
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PINCTRL_PIN(TB10X_PORT5 + 5, "PC_WEN"),
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PINCTRL_PIN(TB10X_PORT5 + 6, "PC_IORDN"),
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PINCTRL_PIN(TB10X_PORT5 + 7, "PC_IOWRN"),
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PINCTRL_PIN(TB10X_PORT5 + 8, "PC_RDYIRQN"),
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PINCTRL_PIN(TB10X_PORT5 + 9, "PC_WAITN"),
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PINCTRL_PIN(TB10X_PORT5 + 10, "PC_A0"),
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PINCTRL_PIN(TB10X_PORT5 + 11, "PC_A1"),
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PINCTRL_PIN(TB10X_PORT5 + 12, "PC_A2"),
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PINCTRL_PIN(TB10X_PORT5 + 13, "PC_A3"),
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PINCTRL_PIN(TB10X_PORT5 + 14, "PC_A4"),
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PINCTRL_PIN(TB10X_PORT5 + 15, "PC_A5"),
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PINCTRL_PIN(TB10X_PORT5 + 16, "PC_A6"),
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PINCTRL_PIN(TB10X_PORT5 + 17, "PC_A7"),
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PINCTRL_PIN(TB10X_PORT5 + 18, "PC_A8"),
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PINCTRL_PIN(TB10X_PORT5 + 19, "PC_A9"),
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PINCTRL_PIN(TB10X_PORT5 + 20, "PC_A10"),
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PINCTRL_PIN(TB10X_PORT5 + 21, "PC_A11"),
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PINCTRL_PIN(TB10X_PORT5 + 22, "PC_A12"),
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PINCTRL_PIN(TB10X_PORT5 + 23, "PC_A13"),
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PINCTRL_PIN(TB10X_PORT5 + 24, "PC_A14"),
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PINCTRL_PIN(TB10X_PORT5 + 25, "PC_D0"),
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PINCTRL_PIN(TB10X_PORT5 + 26, "PC_D1"),
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PINCTRL_PIN(TB10X_PORT5 + 27, "PC_D2"),
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PINCTRL_PIN(TB10X_PORT5 + 28, "PC_D3"),
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PINCTRL_PIN(TB10X_PORT5 + 29, "PC_D4"),
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PINCTRL_PIN(TB10X_PORT5 + 30, "PC_D5"),
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PINCTRL_PIN(TB10X_PORT5 + 31, "PC_D6"),
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PINCTRL_PIN(TB10X_PORT5 + 32, "PC_D7"),
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PINCTRL_PIN(TB10X_PORT5 + 33, "PC_MOSTRT"),
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PINCTRL_PIN(TB10X_PORT5 + 34, "PC_MOVAL"),
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PINCTRL_PIN(TB10X_PORT5 + 35, "PC_MDO0"),
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PINCTRL_PIN(TB10X_PORT5 + 36, "PC_MDO1"),
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PINCTRL_PIN(TB10X_PORT5 + 37, "PC_MDO2"),
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PINCTRL_PIN(TB10X_PORT5 + 38, "PC_MDO3"),
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PINCTRL_PIN(TB10X_PORT5 + 39, "PC_MDO4"),
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PINCTRL_PIN(TB10X_PORT5 + 40, "PC_MDO5"),
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PINCTRL_PIN(TB10X_PORT5 + 41, "PC_MDO6"),
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PINCTRL_PIN(TB10X_PORT5 + 42, "PC_MDO7"),
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PINCTRL_PIN(TB10X_PORT5 + 43, "PC_MISTRT"),
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PINCTRL_PIN(TB10X_PORT5 + 44, "PC_MIVAL"),
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PINCTRL_PIN(TB10X_PORT5 + 45, "PC_MDI0"),
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PINCTRL_PIN(TB10X_PORT5 + 46, "PC_MDI1"),
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PINCTRL_PIN(TB10X_PORT5 + 47, "PC_MDI2"),
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PINCTRL_PIN(TB10X_PORT5 + 48, "PC_MDI3"),
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PINCTRL_PIN(TB10X_PORT5 + 49, "PC_MDI4"),
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PINCTRL_PIN(TB10X_PORT5 + 50, "PC_MDI5"),
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PINCTRL_PIN(TB10X_PORT5 + 51, "PC_MDI6"),
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PINCTRL_PIN(TB10X_PORT5 + 52, "PC_MDI7"),
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PINCTRL_PIN(TB10X_PORT5 + 53, "PC_MICLK"),
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/* Port 6 */
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PINCTRL_PIN(TB10X_PORT6 + 0, "T_MOSTRT_S0"),
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PINCTRL_PIN(TB10X_PORT6 + 1, "T_MOVAL_S0"),
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PINCTRL_PIN(TB10X_PORT6 + 2, "T_MDO_S0"),
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PINCTRL_PIN(TB10X_PORT6 + 3, "T_MOSTRT_S1"),
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PINCTRL_PIN(TB10X_PORT6 + 4, "T_MOVAL_S1"),
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PINCTRL_PIN(TB10X_PORT6 + 5, "T_MDO_S1"),
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PINCTRL_PIN(TB10X_PORT6 + 6, "T_MOSTRT_S2"),
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PINCTRL_PIN(TB10X_PORT6 + 7, "T_MOVAL_S2"),
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PINCTRL_PIN(TB10X_PORT6 + 8, "T_MDO_S2"),
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PINCTRL_PIN(TB10X_PORT6 + 9, "T_MOSTRT_S3"),
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/* Port 7 */
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PINCTRL_PIN(TB10X_PORT7 + 0, "UART0_TXD"),
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PINCTRL_PIN(TB10X_PORT7 + 1, "UART0_RXD"),
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PINCTRL_PIN(TB10X_PORT7 + 2, "UART0_CTS"),
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PINCTRL_PIN(TB10X_PORT7 + 3, "UART0_RTS"),
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PINCTRL_PIN(TB10X_PORT7 + 4, "UART1_TXD"),
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PINCTRL_PIN(TB10X_PORT7 + 5, "UART1_RXD"),
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PINCTRL_PIN(TB10X_PORT7 + 6, "UART1_CTS"),
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PINCTRL_PIN(TB10X_PORT7 + 7, "UART1_RTS"),
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/* Port 8 */
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PINCTRL_PIN(TB10X_PORT8 + 0, "SPI3_CLK"),
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PINCTRL_PIN(TB10X_PORT8 + 1, "SPI3_MISO"),
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PINCTRL_PIN(TB10X_PORT8 + 2, "SPI3_MOSI"),
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PINCTRL_PIN(TB10X_PORT8 + 3, "SPI3_SSN"),
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/* Port 9 */
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PINCTRL_PIN(TB10X_PORT9 + 0, "SPI1_CLK"),
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PINCTRL_PIN(TB10X_PORT9 + 1, "SPI1_MISO"),
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PINCTRL_PIN(TB10X_PORT9 + 2, "SPI1_MOSI"),
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PINCTRL_PIN(TB10X_PORT9 + 3, "SPI1_SSN0"),
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PINCTRL_PIN(TB10X_PORT9 + 4, "SPI1_SSN1"),
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/* Unmuxed GPIOs */
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PINCTRL_PIN(TB10X_GPIOS + 0, "GPIOB0"),
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PINCTRL_PIN(TB10X_GPIOS + 1, "GPIOB1"),
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PINCTRL_PIN(TB10X_GPIOS + 2, "GPIOD0"),
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PINCTRL_PIN(TB10X_GPIOS + 3, "GPIOD1"),
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PINCTRL_PIN(TB10X_GPIOS + 4, "GPIOF0"),
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PINCTRL_PIN(TB10X_GPIOS + 5, "GPIOF1"),
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PINCTRL_PIN(TB10X_GPIOS + 6, "GPIOH0"),
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PINCTRL_PIN(TB10X_GPIOS + 7, "GPIOH1"),
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PINCTRL_PIN(TB10X_GPIOS + 8, "GPIOI0"),
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PINCTRL_PIN(TB10X_GPIOS + 9, "GPIOI1"),
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PINCTRL_PIN(TB10X_GPIOS + 10, "GPIOI2"),
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PINCTRL_PIN(TB10X_GPIOS + 11, "GPIOI3"),
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PINCTRL_PIN(TB10X_GPIOS + 12, "GPIOI4"),
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PINCTRL_PIN(TB10X_GPIOS + 13, "GPIOI5"),
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PINCTRL_PIN(TB10X_GPIOS + 14, "GPIOI6"),
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PINCTRL_PIN(TB10X_GPIOS + 15, "GPIOI7"),
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PINCTRL_PIN(TB10X_GPIOS + 16, "GPIOI8"),
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PINCTRL_PIN(TB10X_GPIOS + 17, "GPIOI9"),
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PINCTRL_PIN(TB10X_GPIOS + 18, "GPIOI10"),
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PINCTRL_PIN(TB10X_GPIOS + 19, "GPIOI11"),
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PINCTRL_PIN(TB10X_GPIOS + 20, "GPION0"),
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PINCTRL_PIN(TB10X_GPIOS + 21, "GPION1"),
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PINCTRL_PIN(TB10X_GPIOS + 22, "GPION2"),
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PINCTRL_PIN(TB10X_GPIOS + 23, "GPION3"),
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#define MAX_PIN (TB10X_GPIOS + 24)
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PINCTRL_PIN(MAX_PIN, "GPION4"),
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};
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/* Port 1 */
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static const unsigned mis0_pins[] = { TB10X_PORT1 + 0, TB10X_PORT1 + 1,
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TB10X_PORT1 + 2, TB10X_PORT1 + 3};
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static const unsigned gpioa_pins[] = { TB10X_PORT1 + 4, TB10X_PORT1 + 5,
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TB10X_PORT1 + 6};
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static const unsigned mis1_pins[] = { TB10X_PORT1 + 7, TB10X_PORT1 + 8,
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TB10X_PORT1 + 9, TB10X_PORT1 + 10};
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static const unsigned mip1_pins[] = { TB10X_PORT1 + 0, TB10X_PORT1 + 1,
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TB10X_PORT1 + 2, TB10X_PORT1 + 3,
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TB10X_PORT1 + 4, TB10X_PORT1 + 5,
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TB10X_PORT1 + 6, TB10X_PORT1 + 7,
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TB10X_PORT1 + 8, TB10X_PORT1 + 9,
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TB10X_PORT1 + 10};
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/* Port 2 */
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static const unsigned mis2_pins[] = { TB10X_PORT2 + 0, TB10X_PORT2 + 1,
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TB10X_PORT2 + 2, TB10X_PORT2 + 3};
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static const unsigned gpioc_pins[] = { TB10X_PORT2 + 4, TB10X_PORT2 + 5,
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TB10X_PORT2 + 6};
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static const unsigned mis3_pins[] = { TB10X_PORT2 + 7, TB10X_PORT2 + 8,
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TB10X_PORT2 + 9, TB10X_PORT2 + 10};
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static const unsigned mip3_pins[] = { TB10X_PORT2 + 0, TB10X_PORT2 + 1,
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TB10X_PORT2 + 2, TB10X_PORT2 + 3,
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TB10X_PORT2 + 4, TB10X_PORT2 + 5,
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TB10X_PORT2 + 6, TB10X_PORT2 + 7,
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TB10X_PORT2 + 8, TB10X_PORT2 + 9,
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TB10X_PORT2 + 10};
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/* Port 3 */
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static const unsigned mis4_pins[] = { TB10X_PORT3 + 0, TB10X_PORT3 + 1,
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TB10X_PORT3 + 2, TB10X_PORT3 + 3};
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static const unsigned gpioe_pins[] = { TB10X_PORT3 + 4, TB10X_PORT3 + 5,
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TB10X_PORT3 + 6};
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static const unsigned mis5_pins[] = { TB10X_PORT3 + 7, TB10X_PORT3 + 8,
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TB10X_PORT3 + 9, TB10X_PORT3 + 10};
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static const unsigned mip5_pins[] = { TB10X_PORT3 + 0, TB10X_PORT3 + 1,
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TB10X_PORT3 + 2, TB10X_PORT3 + 3,
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TB10X_PORT3 + 4, TB10X_PORT3 + 5,
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TB10X_PORT3 + 6, TB10X_PORT3 + 7,
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TB10X_PORT3 + 8, TB10X_PORT3 + 9,
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TB10X_PORT3 + 10};
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/* Port 4 */
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static const unsigned mis6_pins[] = { TB10X_PORT4 + 0, TB10X_PORT4 + 1,
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TB10X_PORT4 + 2, TB10X_PORT4 + 3};
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static const unsigned gpiog_pins[] = { TB10X_PORT4 + 4, TB10X_PORT4 + 5,
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TB10X_PORT4 + 6};
|
|
static const unsigned mis7_pins[] = { TB10X_PORT4 + 7, TB10X_PORT4 + 8,
|
|
TB10X_PORT4 + 9, TB10X_PORT4 + 10};
|
|
static const unsigned mip7_pins[] = { TB10X_PORT4 + 0, TB10X_PORT4 + 1,
|
|
TB10X_PORT4 + 2, TB10X_PORT4 + 3,
|
|
TB10X_PORT4 + 4, TB10X_PORT4 + 5,
|
|
TB10X_PORT4 + 6, TB10X_PORT4 + 7,
|
|
TB10X_PORT4 + 8, TB10X_PORT4 + 9,
|
|
TB10X_PORT4 + 10};
|
|
|
|
/* Port 6 */
|
|
static const unsigned mop_pins[] = { TB10X_PORT6 + 0, TB10X_PORT6 + 1,
|
|
TB10X_PORT6 + 2, TB10X_PORT6 + 3,
|
|
TB10X_PORT6 + 4, TB10X_PORT6 + 5,
|
|
TB10X_PORT6 + 6, TB10X_PORT6 + 7,
|
|
TB10X_PORT6 + 8, TB10X_PORT6 + 9};
|
|
static const unsigned mos0_pins[] = { TB10X_PORT6 + 0, TB10X_PORT6 + 1,
|
|
TB10X_PORT6 + 2};
|
|
static const unsigned mos1_pins[] = { TB10X_PORT6 + 3, TB10X_PORT6 + 4,
|
|
TB10X_PORT6 + 5};
|
|
static const unsigned mos2_pins[] = { TB10X_PORT6 + 6, TB10X_PORT6 + 7,
|
|
TB10X_PORT6 + 8};
|
|
static const unsigned mos3_pins[] = { TB10X_PORT6 + 9};
|
|
|
|
/* Port 7 */
|
|
static const unsigned uart0_pins[] = { TB10X_PORT7 + 0, TB10X_PORT7 + 1,
|
|
TB10X_PORT7 + 2, TB10X_PORT7 + 3};
|
|
static const unsigned uart1_pins[] = { TB10X_PORT7 + 4, TB10X_PORT7 + 5,
|
|
TB10X_PORT7 + 6, TB10X_PORT7 + 7};
|
|
static const unsigned gpiol_pins[] = { TB10X_PORT7 + 0, TB10X_PORT7 + 1,
|
|
TB10X_PORT7 + 2, TB10X_PORT7 + 3};
|
|
static const unsigned gpiom_pins[] = { TB10X_PORT7 + 4, TB10X_PORT7 + 5,
|
|
TB10X_PORT7 + 6, TB10X_PORT7 + 7};
|
|
|
|
/* Port 8 */
|
|
static const unsigned spi3_pins[] = { TB10X_PORT8 + 0, TB10X_PORT8 + 1,
|
|
TB10X_PORT8 + 2, TB10X_PORT8 + 3};
|
|
static const unsigned jtag_pins[] = { TB10X_PORT8 + 0, TB10X_PORT8 + 1,
|
|
TB10X_PORT8 + 2, TB10X_PORT8 + 3};
|
|
|
|
/* Port 9 */
|
|
static const unsigned spi1_pins[] = { TB10X_PORT9 + 0, TB10X_PORT9 + 1,
|
|
TB10X_PORT9 + 2, TB10X_PORT9 + 3,
|
|
TB10X_PORT9 + 4};
|
|
static const unsigned gpion_pins[] = { TB10X_PORT9 + 0, TB10X_PORT9 + 1,
|
|
TB10X_PORT9 + 2, TB10X_PORT9 + 3,
|
|
TB10X_PORT9 + 4};
|
|
|
|
/* Port 5 */
|
|
static const unsigned gpioj_pins[] = { TB10X_PORT5 + 0, TB10X_PORT5 + 1,
|
|
TB10X_PORT5 + 2, TB10X_PORT5 + 3,
|
|
TB10X_PORT5 + 4, TB10X_PORT5 + 5,
|
|
TB10X_PORT5 + 6, TB10X_PORT5 + 7,
|
|
TB10X_PORT5 + 8, TB10X_PORT5 + 9,
|
|
TB10X_PORT5 + 10, TB10X_PORT5 + 11,
|
|
TB10X_PORT5 + 12, TB10X_PORT5 + 13,
|
|
TB10X_PORT5 + 14, TB10X_PORT5 + 15,
|
|
TB10X_PORT5 + 16, TB10X_PORT5 + 17,
|
|
TB10X_PORT5 + 18, TB10X_PORT5 + 19,
|
|
TB10X_PORT5 + 20, TB10X_PORT5 + 21,
|
|
TB10X_PORT5 + 22, TB10X_PORT5 + 23,
|
|
TB10X_PORT5 + 24, TB10X_PORT5 + 25,
|
|
TB10X_PORT5 + 26, TB10X_PORT5 + 27,
|
|
TB10X_PORT5 + 28, TB10X_PORT5 + 29,
|
|
TB10X_PORT5 + 30, TB10X_PORT5 + 31};
|
|
static const unsigned gpiok_pins[] = { TB10X_PORT5 + 32, TB10X_PORT5 + 33,
|
|
TB10X_PORT5 + 34, TB10X_PORT5 + 35,
|
|
TB10X_PORT5 + 36, TB10X_PORT5 + 37,
|
|
TB10X_PORT5 + 38, TB10X_PORT5 + 39,
|
|
TB10X_PORT5 + 40, TB10X_PORT5 + 41,
|
|
TB10X_PORT5 + 42, TB10X_PORT5 + 43,
|
|
TB10X_PORT5 + 44, TB10X_PORT5 + 45,
|
|
TB10X_PORT5 + 46, TB10X_PORT5 + 47,
|
|
TB10X_PORT5 + 48, TB10X_PORT5 + 49,
|
|
TB10X_PORT5 + 50, TB10X_PORT5 + 51,
|
|
TB10X_PORT5 + 52, TB10X_PORT5 + 53};
|
|
static const unsigned ciplus_pins[] = { TB10X_PORT5 + 0, TB10X_PORT5 + 1,
|
|
TB10X_PORT5 + 2, TB10X_PORT5 + 3,
|
|
TB10X_PORT5 + 4, TB10X_PORT5 + 5,
|
|
TB10X_PORT5 + 6, TB10X_PORT5 + 7,
|
|
TB10X_PORT5 + 8, TB10X_PORT5 + 9,
|
|
TB10X_PORT5 + 10, TB10X_PORT5 + 11,
|
|
TB10X_PORT5 + 12, TB10X_PORT5 + 13,
|
|
TB10X_PORT5 + 14, TB10X_PORT5 + 15,
|
|
TB10X_PORT5 + 16, TB10X_PORT5 + 17,
|
|
TB10X_PORT5 + 18, TB10X_PORT5 + 19,
|
|
TB10X_PORT5 + 20, TB10X_PORT5 + 21,
|
|
TB10X_PORT5 + 22, TB10X_PORT5 + 23,
|
|
TB10X_PORT5 + 24, TB10X_PORT5 + 25,
|
|
TB10X_PORT5 + 26, TB10X_PORT5 + 27,
|
|
TB10X_PORT5 + 28, TB10X_PORT5 + 29,
|
|
TB10X_PORT5 + 30, TB10X_PORT5 + 31,
|
|
TB10X_PORT5 + 32, TB10X_PORT5 + 33,
|
|
TB10X_PORT5 + 34, TB10X_PORT5 + 35,
|
|
TB10X_PORT5 + 36, TB10X_PORT5 + 37,
|
|
TB10X_PORT5 + 38, TB10X_PORT5 + 39,
|
|
TB10X_PORT5 + 40, TB10X_PORT5 + 41,
|
|
TB10X_PORT5 + 42, TB10X_PORT5 + 43,
|
|
TB10X_PORT5 + 44, TB10X_PORT5 + 45,
|
|
TB10X_PORT5 + 46, TB10X_PORT5 + 47,
|
|
TB10X_PORT5 + 48, TB10X_PORT5 + 49,
|
|
TB10X_PORT5 + 50, TB10X_PORT5 + 51,
|
|
TB10X_PORT5 + 52, TB10X_PORT5 + 53};
|
|
static const unsigned mcard_pins[] = { TB10X_PORT5 + 3, TB10X_PORT5 + 10,
|
|
TB10X_PORT5 + 11, TB10X_PORT5 + 12,
|
|
TB10X_PORT5 + 22, TB10X_PORT5 + 23,
|
|
TB10X_PORT5 + 33, TB10X_PORT5 + 35,
|
|
TB10X_PORT5 + 36, TB10X_PORT5 + 37,
|
|
TB10X_PORT5 + 38, TB10X_PORT5 + 39,
|
|
TB10X_PORT5 + 40, TB10X_PORT5 + 41,
|
|
TB10X_PORT5 + 42, TB10X_PORT5 + 43,
|
|
TB10X_PORT5 + 45, TB10X_PORT5 + 46,
|
|
TB10X_PORT5 + 47, TB10X_PORT5 + 48,
|
|
TB10X_PORT5 + 49, TB10X_PORT5 + 50,
|
|
TB10X_PORT5 + 51, TB10X_PORT5 + 52,
|
|
TB10X_PORT5 + 53};
|
|
static const unsigned stc0_pins[] = { TB10X_PORT5 + 34, TB10X_PORT5 + 35,
|
|
TB10X_PORT5 + 36, TB10X_PORT5 + 37,
|
|
TB10X_PORT5 + 38, TB10X_PORT5 + 39,
|
|
TB10X_PORT5 + 40};
|
|
static const unsigned stc1_pins[] = { TB10X_PORT5 + 25, TB10X_PORT5 + 26,
|
|
TB10X_PORT5 + 27, TB10X_PORT5 + 28,
|
|
TB10X_PORT5 + 29, TB10X_PORT5 + 30,
|
|
TB10X_PORT5 + 44};
|
|
|
|
/* Unmuxed GPIOs */
|
|
static const unsigned gpiob_pins[] = { TB10X_GPIOS + 0, TB10X_GPIOS + 1};
|
|
static const unsigned gpiod_pins[] = { TB10X_GPIOS + 2, TB10X_GPIOS + 3};
|
|
static const unsigned gpiof_pins[] = { TB10X_GPIOS + 4, TB10X_GPIOS + 5};
|
|
static const unsigned gpioh_pins[] = { TB10X_GPIOS + 6, TB10X_GPIOS + 7};
|
|
static const unsigned gpioi_pins[] = { TB10X_GPIOS + 8, TB10X_GPIOS + 9,
|
|
TB10X_GPIOS + 10, TB10X_GPIOS + 11,
|
|
TB10X_GPIOS + 12, TB10X_GPIOS + 13,
|
|
TB10X_GPIOS + 14, TB10X_GPIOS + 15,
|
|
TB10X_GPIOS + 16, TB10X_GPIOS + 17,
|
|
TB10X_GPIOS + 18, TB10X_GPIOS + 19};
|
|
|
|
struct tb10x_pinfuncgrp {
|
|
const char *name;
|
|
const unsigned int *pins;
|
|
const unsigned int pincnt;
|
|
const int port;
|
|
const unsigned int mode;
|
|
const int isgpio;
|
|
};
|
|
#define DEFPINFUNCGRP(NAME, PORT, MODE, ISGPIO) { \
|
|
.name = __stringify(NAME), \
|
|
.pins = NAME##_pins, .pincnt = ARRAY_SIZE(NAME##_pins), \
|
|
.port = (PORT), .mode = (MODE), \
|
|
.isgpio = (ISGPIO), \
|
|
}
|
|
static const struct tb10x_pinfuncgrp tb10x_pingroups[] = {
|
|
DEFPINFUNCGRP(mis0, 0, 0, 0),
|
|
DEFPINFUNCGRP(gpioa, 0, 0, 1),
|
|
DEFPINFUNCGRP(mis1, 0, 0, 0),
|
|
DEFPINFUNCGRP(mip1, 0, 1, 0),
|
|
DEFPINFUNCGRP(mis2, 1, 0, 0),
|
|
DEFPINFUNCGRP(gpioc, 1, 0, 1),
|
|
DEFPINFUNCGRP(mis3, 1, 0, 0),
|
|
DEFPINFUNCGRP(mip3, 1, 1, 0),
|
|
DEFPINFUNCGRP(mis4, 2, 0, 0),
|
|
DEFPINFUNCGRP(gpioe, 2, 0, 1),
|
|
DEFPINFUNCGRP(mis5, 2, 0, 0),
|
|
DEFPINFUNCGRP(mip5, 2, 1, 0),
|
|
DEFPINFUNCGRP(mis6, 3, 0, 0),
|
|
DEFPINFUNCGRP(gpiog, 3, 0, 1),
|
|
DEFPINFUNCGRP(mis7, 3, 0, 0),
|
|
DEFPINFUNCGRP(mip7, 3, 1, 0),
|
|
DEFPINFUNCGRP(gpioj, 4, 0, 1),
|
|
DEFPINFUNCGRP(gpiok, 4, 0, 1),
|
|
DEFPINFUNCGRP(ciplus, 4, 1, 0),
|
|
DEFPINFUNCGRP(mcard, 4, 2, 0),
|
|
DEFPINFUNCGRP(stc0, 4, 3, 0),
|
|
DEFPINFUNCGRP(stc1, 4, 3, 0),
|
|
DEFPINFUNCGRP(mop, 5, 0, 0),
|
|
DEFPINFUNCGRP(mos0, 5, 1, 0),
|
|
DEFPINFUNCGRP(mos1, 5, 1, 0),
|
|
DEFPINFUNCGRP(mos2, 5, 1, 0),
|
|
DEFPINFUNCGRP(mos3, 5, 1, 0),
|
|
DEFPINFUNCGRP(uart0, 6, 0, 0),
|
|
DEFPINFUNCGRP(uart1, 6, 0, 0),
|
|
DEFPINFUNCGRP(gpiol, 6, 1, 1),
|
|
DEFPINFUNCGRP(gpiom, 6, 1, 1),
|
|
DEFPINFUNCGRP(spi3, 7, 0, 0),
|
|
DEFPINFUNCGRP(jtag, 7, 1, 0),
|
|
DEFPINFUNCGRP(spi1, 8, 0, 0),
|
|
DEFPINFUNCGRP(gpion, 8, 1, 1),
|
|
DEFPINFUNCGRP(gpiob, -1, 0, 1),
|
|
DEFPINFUNCGRP(gpiod, -1, 0, 1),
|
|
DEFPINFUNCGRP(gpiof, -1, 0, 1),
|
|
DEFPINFUNCGRP(gpioh, -1, 0, 1),
|
|
DEFPINFUNCGRP(gpioi, -1, 0, 1),
|
|
};
|
|
#undef DEFPINFUNCGRP
|
|
|
|
struct tb10x_of_pinfunc {
|
|
const char *name;
|
|
const char *group;
|
|
};
|
|
|
|
#define TB10X_PORTS (9)
|
|
|
|
/**
|
|
* struct tb10x_port - state of an I/O port
|
|
* @mode: Node this port is currently in.
|
|
* @count: Number of enabled functions which require this port to be
|
|
* configured in @mode.
|
|
*/
|
|
struct tb10x_port {
|
|
unsigned int mode;
|
|
unsigned int count;
|
|
};
|
|
|
|
/**
|
|
* struct tb10x_pinctrl - TB10x pin controller internal state
|
|
* @pctl: pointer to the pinctrl_dev structure of this pin controller.
|
|
* @base: register set base address.
|
|
* @pingroups: pointer to an array of the pin groups this driver manages.
|
|
* @pinfuncgrpcnt: number of pingroups in @pingroups.
|
|
* @pinfuncnt: number of pin functions in @pinfuncs.
|
|
* @mutex: mutex for exclusive access to a pin controller's state.
|
|
* @ports: current state of each port.
|
|
* @gpios: Indicates if a given pin is currently used as GPIO (1) or not (0).
|
|
* @pinfuncs: flexible array of pin functions this driver manages.
|
|
*/
|
|
struct tb10x_pinctrl {
|
|
struct pinctrl_dev *pctl;
|
|
void *base;
|
|
const struct tb10x_pinfuncgrp *pingroups;
|
|
unsigned int pinfuncgrpcnt;
|
|
unsigned int pinfuncnt;
|
|
struct mutex mutex;
|
|
struct tb10x_port ports[TB10X_PORTS];
|
|
DECLARE_BITMAP(gpios, MAX_PIN + 1);
|
|
struct tb10x_of_pinfunc pinfuncs[];
|
|
};
|
|
|
|
static inline void tb10x_pinctrl_set_config(struct tb10x_pinctrl *state,
|
|
unsigned int port, unsigned int mode)
|
|
{
|
|
u32 pcfg;
|
|
|
|
if (state->ports[port].count)
|
|
return;
|
|
|
|
state->ports[port].mode = mode;
|
|
|
|
pcfg = ioread32(state->base) & ~(PCFG_PORT_MASK(port));
|
|
pcfg |= (mode << (PCFG_PORT_BITWIDTH * port)) & PCFG_PORT_MASK(port);
|
|
iowrite32(pcfg, state->base);
|
|
}
|
|
|
|
static inline unsigned int tb10x_pinctrl_get_config(
|
|
struct tb10x_pinctrl *state,
|
|
unsigned int port)
|
|
{
|
|
return (ioread32(state->base) & PCFG_PORT_MASK(port))
|
|
>> (PCFG_PORT_BITWIDTH * port);
|
|
}
|
|
|
|
static int tb10x_get_groups_count(struct pinctrl_dev *pctl)
|
|
{
|
|
struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
|
|
return state->pinfuncgrpcnt;
|
|
}
|
|
|
|
static const char *tb10x_get_group_name(struct pinctrl_dev *pctl, unsigned n)
|
|
{
|
|
struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
|
|
return state->pingroups[n].name;
|
|
}
|
|
|
|
static int tb10x_get_group_pins(struct pinctrl_dev *pctl, unsigned n,
|
|
unsigned const **pins,
|
|
unsigned * const num_pins)
|
|
{
|
|
struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
|
|
|
|
*pins = state->pingroups[n].pins;
|
|
*num_pins = state->pingroups[n].pincnt;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tb10x_dt_node_to_map(struct pinctrl_dev *pctl,
|
|
struct device_node *np_config,
|
|
struct pinctrl_map **map, unsigned *num_maps)
|
|
{
|
|
const char *string;
|
|
unsigned reserved_maps = 0;
|
|
int ret = 0;
|
|
|
|
if (of_property_read_string(np_config, "abilis,function", &string)) {
|
|
pr_err("%pOF: No abilis,function property in device tree.\n",
|
|
np_config);
|
|
return -EINVAL;
|
|
}
|
|
|
|
*map = NULL;
|
|
*num_maps = 0;
|
|
|
|
ret = pinctrl_utils_reserve_map(pctl, map, &reserved_maps,
|
|
num_maps, 1);
|
|
if (ret)
|
|
goto out;
|
|
|
|
ret = pinctrl_utils_add_map_mux(pctl, map, &reserved_maps,
|
|
num_maps, string, np_config->name);
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static const struct pinctrl_ops tb10x_pinctrl_ops = {
|
|
.get_groups_count = tb10x_get_groups_count,
|
|
.get_group_name = tb10x_get_group_name,
|
|
.get_group_pins = tb10x_get_group_pins,
|
|
.dt_node_to_map = tb10x_dt_node_to_map,
|
|
.dt_free_map = pinctrl_utils_free_map,
|
|
};
|
|
|
|
static int tb10x_get_functions_count(struct pinctrl_dev *pctl)
|
|
{
|
|
struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
|
|
return state->pinfuncnt;
|
|
}
|
|
|
|
static const char *tb10x_get_function_name(struct pinctrl_dev *pctl,
|
|
unsigned n)
|
|
{
|
|
struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
|
|
return state->pinfuncs[n].name;
|
|
}
|
|
|
|
static int tb10x_get_function_groups(struct pinctrl_dev *pctl,
|
|
unsigned n, const char * const **groups,
|
|
unsigned * const num_groups)
|
|
{
|
|
struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
|
|
|
|
*groups = &state->pinfuncs[n].group;
|
|
*num_groups = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tb10x_gpio_request_enable(struct pinctrl_dev *pctl,
|
|
struct pinctrl_gpio_range *range,
|
|
unsigned pin)
|
|
{
|
|
struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
|
|
int muxport = -1;
|
|
int muxmode = -1;
|
|
int i;
|
|
|
|
mutex_lock(&state->mutex);
|
|
|
|
/*
|
|
* Figure out to which port the requested GPIO belongs and how to
|
|
* configure that port.
|
|
* This loop also checks for pin conflicts between GPIOs and other
|
|
* functions.
|
|
*/
|
|
for (i = 0; i < state->pinfuncgrpcnt; i++) {
|
|
const struct tb10x_pinfuncgrp *pfg = &state->pingroups[i];
|
|
unsigned int mode = pfg->mode;
|
|
int j, port = pfg->port;
|
|
|
|
/*
|
|
* Skip pin groups which are always mapped and don't need
|
|
* to be configured.
|
|
*/
|
|
if (port < 0)
|
|
continue;
|
|
|
|
for (j = 0; j < pfg->pincnt; j++) {
|
|
if (pin == pfg->pins[j]) {
|
|
if (pfg->isgpio) {
|
|
/*
|
|
* Remember the GPIO-only setting of
|
|
* the port this pin belongs to.
|
|
*/
|
|
muxport = port;
|
|
muxmode = mode;
|
|
} else if (state->ports[port].count
|
|
&& (state->ports[port].mode == mode)) {
|
|
/*
|
|
* Error: The requested pin is already
|
|
* used for something else.
|
|
*/
|
|
mutex_unlock(&state->mutex);
|
|
return -EBUSY;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If we haven't returned an error at this point, the GPIO pin is not
|
|
* used by another function and the GPIO request can be granted:
|
|
* Register pin as being used as GPIO so we don't allocate it to
|
|
* another function later.
|
|
*/
|
|
set_bit(pin, state->gpios);
|
|
|
|
/*
|
|
* Potential conflicts between GPIOs and pin functions were caught
|
|
* earlier in this function and tb10x_pinctrl_set_config will do the
|
|
* Right Thing, either configure the port in GPIO only mode or leave
|
|
* another mode compatible with this GPIO request untouched.
|
|
*/
|
|
if (muxport >= 0)
|
|
tb10x_pinctrl_set_config(state, muxport, muxmode);
|
|
|
|
mutex_unlock(&state->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tb10x_gpio_disable_free(struct pinctrl_dev *pctl,
|
|
struct pinctrl_gpio_range *range,
|
|
unsigned pin)
|
|
{
|
|
struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
|
|
|
|
mutex_lock(&state->mutex);
|
|
|
|
clear_bit(pin, state->gpios);
|
|
|
|
mutex_unlock(&state->mutex);
|
|
}
|
|
|
|
static int tb10x_pctl_set_mux(struct pinctrl_dev *pctl,
|
|
unsigned func_selector, unsigned group_selector)
|
|
{
|
|
struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
|
|
const struct tb10x_pinfuncgrp *grp = &state->pingroups[group_selector];
|
|
int i;
|
|
|
|
if (grp->port < 0)
|
|
return 0;
|
|
|
|
mutex_lock(&state->mutex);
|
|
|
|
/*
|
|
* Check if the requested function is compatible with previously
|
|
* requested functions.
|
|
*/
|
|
if (state->ports[grp->port].count
|
|
&& (state->ports[grp->port].mode != grp->mode)) {
|
|
mutex_unlock(&state->mutex);
|
|
return -EBUSY;
|
|
}
|
|
|
|
/*
|
|
* Check if the requested function is compatible with previously
|
|
* requested GPIOs.
|
|
*/
|
|
for (i = 0; i < grp->pincnt; i++)
|
|
if (test_bit(grp->pins[i], state->gpios)) {
|
|
mutex_unlock(&state->mutex);
|
|
return -EBUSY;
|
|
}
|
|
|
|
tb10x_pinctrl_set_config(state, grp->port, grp->mode);
|
|
|
|
state->ports[grp->port].count++;
|
|
|
|
mutex_unlock(&state->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct pinmux_ops tb10x_pinmux_ops = {
|
|
.get_functions_count = tb10x_get_functions_count,
|
|
.get_function_name = tb10x_get_function_name,
|
|
.get_function_groups = tb10x_get_function_groups,
|
|
.gpio_request_enable = tb10x_gpio_request_enable,
|
|
.gpio_disable_free = tb10x_gpio_disable_free,
|
|
.set_mux = tb10x_pctl_set_mux,
|
|
};
|
|
|
|
static struct pinctrl_desc tb10x_pindesc = {
|
|
.name = "TB10x",
|
|
.pins = tb10x_pins,
|
|
.npins = ARRAY_SIZE(tb10x_pins),
|
|
.owner = THIS_MODULE,
|
|
.pctlops = &tb10x_pinctrl_ops,
|
|
.pmxops = &tb10x_pinmux_ops,
|
|
};
|
|
|
|
static int tb10x_pinctrl_probe(struct platform_device *pdev)
|
|
{
|
|
int ret = -EINVAL;
|
|
struct resource *mem;
|
|
struct device *dev = &pdev->dev;
|
|
struct device_node *of_node = dev->of_node;
|
|
struct device_node *child;
|
|
struct tb10x_pinctrl *state;
|
|
int i;
|
|
|
|
if (!of_node) {
|
|
dev_err(dev, "No device tree node found.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
state = devm_kzalloc(dev, struct_size(state, pinfuncs,
|
|
of_get_child_count(of_node)),
|
|
GFP_KERNEL);
|
|
if (!state)
|
|
return -ENOMEM;
|
|
|
|
platform_set_drvdata(pdev, state);
|
|
mutex_init(&state->mutex);
|
|
|
|
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
state->base = devm_ioremap_resource(dev, mem);
|
|
if (IS_ERR(state->base)) {
|
|
ret = PTR_ERR(state->base);
|
|
goto fail;
|
|
}
|
|
|
|
state->pingroups = tb10x_pingroups;
|
|
state->pinfuncgrpcnt = ARRAY_SIZE(tb10x_pingroups);
|
|
|
|
for (i = 0; i < TB10X_PORTS; i++)
|
|
state->ports[i].mode = tb10x_pinctrl_get_config(state, i);
|
|
|
|
for_each_child_of_node(of_node, child) {
|
|
const char *name;
|
|
|
|
if (!of_property_read_string(child, "abilis,function",
|
|
&name)) {
|
|
state->pinfuncs[state->pinfuncnt].name = child->name;
|
|
state->pinfuncs[state->pinfuncnt].group = name;
|
|
state->pinfuncnt++;
|
|
}
|
|
}
|
|
|
|
state->pctl = devm_pinctrl_register(dev, &tb10x_pindesc, state);
|
|
if (IS_ERR(state->pctl)) {
|
|
dev_err(dev, "could not register TB10x pin driver\n");
|
|
ret = PTR_ERR(state->pctl);
|
|
goto fail;
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
mutex_destroy(&state->mutex);
|
|
return ret;
|
|
}
|
|
|
|
static int tb10x_pinctrl_remove(struct platform_device *pdev)
|
|
{
|
|
struct tb10x_pinctrl *state = platform_get_drvdata(pdev);
|
|
|
|
mutex_destroy(&state->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static const struct of_device_id tb10x_pinctrl_dt_ids[] = {
|
|
{ .compatible = "abilis,tb10x-iomux" },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, tb10x_pinctrl_dt_ids);
|
|
|
|
static struct platform_driver tb10x_pinctrl_pdrv = {
|
|
.probe = tb10x_pinctrl_probe,
|
|
.remove = tb10x_pinctrl_remove,
|
|
.driver = {
|
|
.name = "tb10x_pinctrl",
|
|
.of_match_table = of_match_ptr(tb10x_pinctrl_dt_ids),
|
|
}
|
|
};
|
|
|
|
module_platform_driver(tb10x_pinctrl_pdrv);
|
|
|
|
MODULE_AUTHOR("Christian Ruppert <christian.ruppert@abilis.com>");
|
|
MODULE_LICENSE("GPL");
|