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Commit 35226273 authored by Jigarkumar Zala's avatar Jigarkumar Zala Committed by Gerrit - the friendly Code Review server
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msm: camera: Add support for camera PMIC based flash led 



Add support for PMIC based Flash LED for camera.
This driver change includes handling different Packet/Cmd_buf
operations, Dual and Single Flash/Torch LED operations,
interactions with LED framework, interactions with CRM module.

CRs-Fixed: 2056624
Change-Id: I146065ebab51dc3e1813d6e740438fe99d05a0b8
Signed-off-by: default avatarJigarkumar Zala <jzala@codeaurora.org>
parent 6e9910de

Documentation/devicetree/bindings/media/video/msm-camera-flash.txt

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+126 −0
Original line number Diff line number Diff line 
* Qualcomm Technologies, Inc. MSM FLASH



The MSM camera Flash driver provides the definitions for

enabling and disabling LED Torch/Flash by requesting it to

PMIC/I2C/GPIO based hardware. It provides the functions for

the Client to control the Flash hardware.



=======================================================

Required Node Structure

=======================================================

The Flash device is described in one level of the device node.



======================================

First Level Node - CAM FLASH device

======================================

- compatible

  Usage: required

  Value type: <string>

  Definition: Should be "qcom,camera-flash".



- cell-index

  Usage: required

  Value type: <u32>

  Definition: Should specify the hardware index id.



- reg

  Usage: required

  Value type: <u32>

  Definition: Register values.



- flash-source

  Usage: required

  Value type: <phandle>

  Definition: Should contain array of phandles to Flash source nodes.



- torch-source

  Usage: required

  Value type: <phandle>

  Definition: Should contain array of phandles to torch source nodes.



- switch-source

  Usage: Optional

  Value type: <phandle>

  Definition: Should contain phandle to switch source nodes.



- slave-id

  Usage: optional

  Value type: <u32>

  Definition: should contain i2c slave address, device id address

		      and expected id read value.



- cci-master

  Usage: optional

  Value type: <u32>

  Definition: should contain i2c master id to be used for this camera

              flash.



- max-current

  Usage: optional

  Value type: <u32>

  Definition: Max current in mA supported by flash



- max-duration

  Usage: optional

  Value type: <u32>

  Definition: Max duration in ms flash can glow.



- gpios

  Usage: optional

  Value type: <u32>

  Definition: should specify the gpios to be used for the flash.



- gpio-req-tbl-num

  Usage: optional

  Value type: <u32>

  Definition: should specify the gpio table index.



- gpio-req-tbl-flags

  Usage: optional

  Value type: <u32>

  Definition: should specify the gpio functions.



- gpio-req-tbl-label

  Usage: optional

  Value type: <u32>

  Definition: should specify the gpio labels.



- gpio-flash-reset

  Usage: optional

  Value type: <u32>

  Definition: should contain index to gpio used by flash's "flash reset" pin.



- gpio-flash-en

  Usage: optional

  Value type: <u32>

  Definition: should contain index to gpio used by flash's "flash enable" pin.



- gpio-flash-now

  Usage: optional

  Value type: <u32>

  Definition: should contain index to gpio used by flash's "flash now" pin.



Example:



led_flash_rear: qcom,camera-flash@0 {

		reg = <0x00 0x00>;

		cell-index = <0>;

		compatible = "qcom,camera-flash";

		flash-source = <&pmi8998_flash0 &pmi8998_flash1>;

		torch-source = <&pmi8998_torch0 &pmi8998_torch1>;

		switch-source = <&pmi8998_switch0>;

        qcom,slave-id = <0x00 0x00 0x0011>;

		qcom,cci-master = <0>;

		gpios = <&msmgpio 23 0>,

			<&msmgpio 24 0>;

			<&msmgpio 25 0>;

		qcom,gpio-flash-reset = <0>;

		qcom,gpio-flash-en = <0>;

		qcom,gpio-flash-now = <1>;

		qcom,gpio-req-tbl-num = <0 1>;

		qcom,gpio-req-tbl-flags = <0 0>;

		qcom,gpio-req-tbl-label = "FLASH_EN",

			"FLASH_NOW";

		qcom,max-current = <1500>;

		qcom,max-duration = <1200>;

	};

drivers/media/platform/msm/camera/cam_req_mgr/cam_req_mgr_interface.h

+11 −11
Original line number Diff line number Diff line
@@ -198,7 +198,7 @@ struct cam_req_mgr_sof_notify { 
struct cam_req_mgr_error_notify {

	int32_t  link_hdl;

	int32_t  dev_hdl;

	int64_t req_id;

	uint64_t req_id;

	enum cam_req_mgr_device_error error;

};
@@ -212,7 +212,7 @@ struct cam_req_mgr_error_notify { 
struct cam_req_mgr_add_request {

	int32_t  link_hdl;

	int32_t  dev_hdl;

	int64_t req_id;

	uint64_t req_id;

};
@@ -260,7 +260,7 @@ struct cam_req_mgr_core_dev_link_setup { 
struct cam_req_mgr_apply_request {

	int32_t    link_hdl;

	int32_t    dev_hdl;

	int64_t    request_id;

	uint64_t   request_id;

	int32_t    report_if_bubble;

};
@@ -276,7 +276,7 @@ struct cam_req_mgr_flush_request { 
	int32_t     link_hdl;

	int32_t     dev_hdl;

	uint32_t    type;

	int64_t     req_id;

	uint64_t    req_id;

};



/**
@@ -288,7 +288,7 @@ struct cam_req_mgr_flush_request { 
struct cam_req_mgr_link_evt_data {

	int32_t  link_hdl;

	int32_t  dev_hdl;

	int64_t req_id;

	uint64_t req_id;



	enum cam_req_mgr_link_evt_type evt_type;

	union {

drivers/media/platform/msm/camera/cam_sensor_module/Makefile

+1 −0
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@@ -4,3 +4,4 @@ obj-$(CONFIG_SPECTRA_CAMERA) += cam_sensor_io/ 
obj-$(CONFIG_SPECTRA_CAMERA) += cam_csiphy/

obj-$(CONFIG_SPECTRA_CAMERA) += cam_actuator/

obj-$(CONFIG_SPECTRA_CAMERA) += cam_sensor/

obj-$(CONFIG_SPECTRA_CAMERA) += cam_flash/

drivers/media/platform/msm/camera/cam_sensor_module/cam_flash/Makefile

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ccflags-y += -Idrivers/media/platform/msm/camera/cam_utils

ccflags-y += -Idrivers/media/platform/msm/camera/cam_sync

ccflags-y += -Idrivers/media/platform/msm/camera/cam_sensor_module/cam_sensor_utils

ccflags-y += -Idrivers/media/platform/msm/camera/cam_sensor_module/cam_sensor_io

ccflags-y += -Idrivers/media/platform/msm/camera/cam_sensor_module/cam_cci

ccflags-y += -Idrivers/media/platform/msm/camera/cam_req_mgr

ccflags-y += -Idrivers/media/platform/msm/camera/cam_smmu/



obj-$(CONFIG_SPECTRA_CAMERA) += cam_flash_dev.o cam_flash_core.o cam_flash_soc.o

drivers/media/platform/msm/camera/cam_sensor_module/cam_flash/cam_flash_core.c

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File added.

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