The reset on apq8064 is provided on gpio78 function1. We need to configure
gpio78 to function as ps_hold and write to base of the register to get the
device rebooted.
First two patches in this patchset adds necessary DT support for apq8064-pinctrl
and DT support to mux gpio_78 as ps_hold function.
Third patch documents the ps_hold function in apq8064-pinctrl DT binding
Fourth implements the actual reset by initialising arm_pm_restart to a reset
function if ps_hold function is programmed in the pinctrl driver.
Changes since v2 to v3:
1. As per Bjorn's review suggestions consolidated all code which detects ps_hold function and
initializes arm_pm_restart in a single function named msm_pinctrl_setup_pm_reset under
#ifdef CONFIG_ARM
2. Removed 10 second delay after carrying out reset which was copied by mistake
3. Renamed pinctl DT node to tlmm_pinumux from msm_gpio
Changes since v1 to v2:
1. Added #error log as suggested by Kumar Gala
2. Correct interrupts in DT from 32 to 16 based on Bjorn's new patch in bindings
3. Replaced hardcoding in DT with IRQ_TYPE_LEVEL_HIGH for interrupt level type
Pramod Gurav (4):
ARM: DT: APQ8064: Add pinctrl support
ARM: DT: APQ8064: Add node for ps_hold function in pinctrl
pinctrl: msm: Add ps_hold function in pinctrl-apq8064 binding
documentation
pinctrl: qcom: Add support for reset for apq8064
.../bindings/pinctrl/qcom,apq8064-pinctrl.txt | 2 +-
arch/arm/boot/dts/qcom-apq8064.dtsi | 21 ++++++++++++++
drivers/pinctrl/qcom/pinctrl-apq8064.c | 7 ++++-
drivers/pinctrl/qcom/pinctrl-msm.c | 30 ++++++++++++++++++++
4 files changed, 58 insertions(+), 2 deletions(-)
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