alistair23-linux/arch/arm/boot/dts/imx53-qsrb.dts
Fabio Estevam 090727b880 ARM: dts: imx53-qsrb: Fix suspend/resume
The following error is seen after a suspend/resume cycle on a mx53qsb with a
MC34708 PMIC:

root@freescale /$ echo mem > /sys/power/state
[   32.630592] PM: Syncing filesystems ... done.
[   32.643924] Freezing user space processes ... (elapsed 0.001 seconds) done.
[   32.652384] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[   32.679156] PM: suspend of devices complete after 13.113 msecs
[   32.685128] PM: suspend devices took 0.030 seconds
[   32.696109] PM: late suspend of devices complete after 6.133 msecs
[   33.313032] mc13xxx 0-0008: Failed to read IRQ status: -110
[   33.322009] PM: noirq suspend of devices complete after 619.667 msecs
[   33.328544] Disabling non-boot CPUs ...
[   33.335031] PM: noirq resume of devices complete after 2.352 msecs
[   33.842940] mc13xxx 0-0008: Failed to read IRQ status: -110
[   33.976095] [sched_delayed] sched: RT throttling activated
[   33.984804] PM: early resume of devices complete after 642.642 msecs
[   34.352954] mc13xxx 0-0008: Failed to read IRQ status: -110
[   34.862910] mc13xxx 0-0008: Failed to read IRQ status: -110
[   34.996595] PM: resume of devices complete after 1005.367 msecs
[   35.372925] mc13xxx 0-0008: Failed to read IRQ status: -110
[   35.882911] mc13xxx 0-0008: Failed to read IRQ status: -110
[   35.955707] PM: resume devices took 1.970 seconds
[   35.960445] Restarting tasks ... done.
[   35.993386] fec 63fec000.ethernet eth0: Link is Down
[   36.392980] mc13xxx 0-0008: Failed to read IRQ status: -110
[   36.902908] mc13xxx 0-0008: Failed to read IRQ status: -110
[   36.953036] ata1: SATA link down (SStatus 0 SControl 300)
[   37.412922] mc13xxx 0-0008: Failed to read IRQ status: -110
[   37.922906] mc13xxx 0-0008: Failed to read IRQ status: -110
[   37.993379] fec 63fec000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   38.432938] mc13xxx 0-0008: Failed to read IRQ status: -110
[   38.942920] mc13xxx 0-0008: Failed to read IRQ status: -110
[   39.452933] mc13xxx 0-0008: Failed to read IRQ status: -110

(flood of this error message continues forever)

Commit 5169df8be0 ("ARM: dts: i.MX53: add support for MCIMX53-START-R")
missed to configure the IOMUX for the PMIC IRQ pin.

Configure the PMIC IRQ pin so that the suspend/resume sequence behaves cleanly
as expected.

Cc: <stable@vger.kernel.org> # 3.16
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-08-19 22:02:25 +08:00

167 lines
3.5 KiB
Plaintext

/*
* Copyright 2011 Freescale Semiconductor, Inc.
* Copyright 2011 Linaro Ltd.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
/dts-v1/;
#include "imx53-qsb-common.dtsi"
/ {
model = "Freescale i.MX53 Quick Start-R Board";
compatible = "fsl,imx53-qsrb", "fsl,imx53";
};
&iomuxc {
i2c1 {
/* open drain */
pinctrl_i2c1_qsrb: i2c1grp-1 {
fsl,pins = <
MX53_PAD_CSI0_DAT8__I2C1_SDA 0x400001ec
MX53_PAD_CSI0_DAT9__I2C1_SCL 0x400001ec
>;
};
pinctrl_pmic: pmicgrp {
fsl,pins = <
MX53_PAD_CSI0_DAT5__GPIO5_23 0x1e4 /* IRQ */
>;
};
};
};
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1_qsrb>;
status = "okay";
pmic: mc34708@8 {
compatible = "fsl,mc34708";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
reg = <0x08>;
interrupt-parent = <&gpio5>;
interrupts = <23 0x8>;
regulators {
sw1_reg: sw1a {
regulator-name = "SW1";
regulator-min-microvolt = <650000>;
regulator-max-microvolt = <1437500>;
regulator-boot-on;
regulator-always-on;
};
sw1b_reg: sw1b {
regulator-name = "SW1B";
regulator-min-microvolt = <650000>;
regulator-max-microvolt = <1437500>;
regulator-boot-on;
regulator-always-on;
};
sw2_reg: sw2 {
regulator-name = "SW2";
regulator-min-microvolt = <650000>;
regulator-max-microvolt = <1437500>;
regulator-boot-on;
regulator-always-on;
};
sw3_reg: sw3 {
regulator-name = "SW3";
regulator-min-microvolt = <650000>;
regulator-max-microvolt = <1425000>;
regulator-boot-on;
};
sw4a_reg: sw4a {
regulator-name = "SW4A";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
sw4b_reg: sw4b {
regulator-name = "SW4B";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
sw5_reg: sw5 {
regulator-name = "SW5";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1975000>;
regulator-boot-on;
regulator-always-on;
};
swbst_reg: swbst {
regulator-name = "SWBST";
regulator-boot-on;
regulator-always-on;
};
vpll_reg: vpll {
regulator-name = "VPLL";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
};
vrefddr_reg: vrefddr {
regulator-name = "VREFDDR";
regulator-boot-on;
regulator-always-on;
};
vusb_reg: vusb {
regulator-name = "VUSB";
regulator-boot-on;
regulator-always-on;
};
vusb2_reg: vusb2 {
regulator-name = "VUSB2";
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <3000000>;
regulator-boot-on;
regulator-always-on;
};
vdac_reg: vdac {
regulator-name = "VDAC";
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <2775000>;
regulator-boot-on;
regulator-always-on;
};
vgen1_reg: vgen1 {
regulator-name = "VGEN1";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1550000>;
regulator-boot-on;
regulator-always-on;
};
vgen2_reg: vgen2 {
regulator-name = "VGEN2";
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
};
};
};