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Commit c2657225 authored by Protik Biswas's avatar Protik Biswas
Browse files

sdm429w: add bg-rsg driver changes 



bg-rsb driver is taken from msm-4.9 'commit
<94afce5b> ("soc: qcom: bg-rsb: enable/disable
events through gpio")'.
bg-rsb driver maintains RSB state machine.
bgrsb-rpmsg is registered as a rpmsg driver
when remote processor opens RSB_CTRL channel
it sends callback to rsb driver.

Change-Id: I58e341ce81f33df38e900f822325be6f37cef8e6
Signed-off-by: default avatarProtik Biswas <protbisw@codeaurora.org>
parent 1157d339

Documentation/devicetree/bindings/soc/qcom/bg_rsb.txt

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Qualcomm technologies, Inc. bg-rsb



BG-RSB : bg-rsb is used to communicate with Blackghost over

Glink to configure the RSB events. bg-rsb enable/disable

LDO11 and LDO15 before making any communication to BG

regarding RSB. It also provides an input device, which is

used to send the RSB/Button events to input framework.



Required properties:

- compatible : should be "qcom,bg-rsb"

- vdd-ldo1-supply : for powering main supply

- vdd-ldo2-supply : for powering sensor



Example:

	qcom,bg-rsb {

		compatible = "qcom,bg-rsb";

		vdd-ldo1-supply = <&pm660_l11>;

		vdd-ldo2-supply = <&pm660_l15>;

	};

drivers/soc/qcom/Kconfig

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@@ -1031,6 +1031,15 @@ config MSM_BAM_DMUX 
                communication between G-Link/bg_com_dev and BG processor over SPI.

                This handle the interrupts raised by BG and notify the G-link with

                interrupt event and event data.



config MSM_BGRSB

	bool "Provide support for rsb events on Blackghost chipset"

	help

	  BGRSB communicates to BG over rpmsg driver for RSB configuration and

	  enable/disable on device power state change. It enables/disables

	  the regulator specific to RSB. Sends the side band events generated

	  by BG to input framework.



config MSM_PIL_SSR_BG

	tristate "MSM Subsystem Blackghost(BG) Support"

	depends on MSM_PIL && MSM_SUBSYSTEM_RESTART

drivers/soc/qcom/Makefile

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@@ -71,6 +71,7 @@ obj-$(CONFIG_QCOM_SMCINVOKE) += smcinvoke.o 
obj-$(CONFIG_SDX_EXT_IPC) += sdx_ext_ipc.o

obj-$(CONFIG_MSM_PIL_SSR_BG) += subsys-pil-bg.o

obj-$(CONFIG_QTI_NOTIFY_SIDEBAND) += sideband_notify.o

obj-$(CONFIG_MSM_BGRSB) += bg_rsb.o



ifdef CONFIG_MSM_SUBSYSTEM_RESTART

       obj-y += subsystem_notif.o

drivers/soc/qcom/bg_rsb.c

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drivers/soc/qcom/bgrsb.h

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