[MTK] Android Q 新增一组Regulator的方法

文摘 MediaTek 2020-05-7 阅读：8606

[DESCRIPTION]

平台默认写了三组regulator的pin，假设需要更多的regulator电源，请按照Solution修改code.

31  struct REGULATOR_CTRL regulator_control[REGULATOR_TYPE_MAX_NUM] = {
32  {"vcama"},
33  {"vcamd"},
34  {"vcamio"},
35  };复制

[SOLUTION]

以需要新增一个vcamio_1p8为例.

注意：

1、新添加的内容一定要放在中间的位置，不要在最前面也不要在最后面添加。
2、所有添加的位置切记顺序要保持一致。
3、即使只需要添加一组regulator，也要同步修改到gpio.c和gpio.h

kernel-4.*\drivers\misc\mediatek\imgsensor\src\mt6***\camera_hw\gpio\gpio.c

 struct GPIO_PINCTRL gpio_pinctrl_list_cam[
 GPIO_CTRL_STATE_MAX_NUM_CAM] = {
 /* Main */
 {"pnd1"},
 {"pnd0"},
 {"rst1"},
 {"rst0"},
 {"ldo_vcama_1"},
 {"ldo_vcama_0"},
+{"ldo_vcamio_1p8_1"},     //add
+{"ldo_vcamio_1p8_0"},     //add
 {"ldo_vcamd_1"},
 {"ldo_vcamd_0"},
 {"ldo_vcamio_1"},
 {"ldo_vcamio_0"},
};复制

kernel-4.*\drivers\misc\mediatek\imgsensor\src\mt6***camera_hw\gpio\gpio.h

enum GPIO_CTRL_STATE_CAM {
 /* Main */
 GPIO_CTRL_STATE_PDN_H,
 GPIO_CTRL_STATE_PDN_L,
 GPIO_CTRL_STATE_RST_H,
 GPIO_CTRL_STATE_RST_L,
 GPIO_CTRL_STATE_LDO_VCAMA_H,
 GPIO_CTRL_STATE_LDO_VCAMA_L,
 +GPIO_CTRL_STATE_LDO_VCAMIO_1P8_H,     //add
 +GPIO_CTRL_STATE_LDO_VCAMIO_1P8_L,     //add
 GPIO_CTRL_STATE_LDO_VCAMD_H,
 GPIO_CTRL_STATE_LDO_VCAMD_L,
 GPIO_CTRL_STATE_LDO_VCAMIO_H,
 GPIO_CTRL_STATE_LDO_VCAMIO_L,
 GPIO_CTRL_STATE_MAX_NUM_CAM,
};复制

kernel-4.**\drivers\misc\mediatek\imgsensor\src\mt6***\camera_hw\imgsensor_cfg_table.c

struct IMGSENSOR_HW_CFG imgsensor_custom_config[] = {
 {
 IMGSENSOR_SENSOR_IDX_MAIN,
 IMGSENSOR_I2C_DEV_0,
 {
 {IMGSENSOR_HW_PIN_MCLK, IMGSENSOR_HW_ID_MCLK},
 {IMGSENSOR_HW_PIN_AVDD, IMGSENSOR_HW_ID_GPIO},
 +{IMGSENSOR_HW_PIN_DOVDD_1P8, IMGSENSOR_HW_ID_REGULATOR},     //add
 {IMGSENSOR_HW_PIN_DOVDD, IMGSENSOR_HW_ID_REGULATOR},
 {IMGSENSOR_HW_PIN_DVDD, IMGSENSOR_HW_ID_GPIO},
 {IMGSENSOR_HW_PIN_PDN, IMGSENSOR_HW_ID_GPIO},
 {IMGSENSOR_HW_PIN_RST, IMGSENSOR_HW_ID_GPIO},
 {IMGSENSOR_HW_PIN_NONE, IMGSENSOR_HW_ID_NONE},
 },
 },

#if defined(*****_MIPI_RAW)
 {
 SENSOR_DRVNAME_*****_MIPI_RAW,
 {
 {RST, Vol_Low, 1},
 {AVDD, Vol_2900, 0},
 {DVDD, Vol_1100, 0},
 +{DOVDD_1P8, Vol_1800, 1},     //add
 {SensorMCLK, Vol_High, 1},
 {RST, Vol_High, 1}
 },
 },复制

kernel-4.**\drivers\misc\mediatek\imgsensor\src\mt6***\camera_hw\imgsensor_cfg_table.h

enum IMGSENSOR_HW_PIN {
 IMGSENSOR_HW_PIN_NONE = 0,
 IMGSENSOR_HW_PIN_PDN,
 IMGSENSOR_HW_PIN_RST,
 IMGSENSOR_HW_PIN_AVDD,
+IMGSENSOR_HW_PIN_DOVDD_1P8,     //add
 IMGSENSOR_HW_PIN_DVDD,
 IMGSENSOR_HW_PIN_DOVDD,
#ifdef MIPI_SWITCH
 IMGSENSOR_HW_PIN_MIPI_SWITCH_EN,
 IMGSENSOR_HW_PIN_MIPI_SWITCH_SEL,
#endif
 IMGSENSOR_HW_PIN_MCLK,
 IMGSENSOR_HW_PIN_MAX_NUM,
 IMGSENSOR_HW_PIN_UNDEF = -1
};复制

kernel-4.**\drivers\misc\mediatek\imgsensor\src\mt6*\camera_hw\regulator\regulator.c

struct REGULATOR_CTRL regulator_control[REGULATOR_TYPE_MAX_NUM] = {
 {"vcama"},
+{"vcamio_1p8"},     //add
 {"vcamd"},
 {"vcamio"},
};复制

kernel-4.**\drivers\misc\mediatek\imgsensor\src\mt6***\camera_hw\regulator\regulator.h

enum REGULATOR_TYPE {
 REGULATOR_TYPE_VCAMA,
+REGULATOR_TYPE_VCAMIO_1P8,     //add
 REGULATOR_TYPE_VCAMD,
 REGULATOR_TYPE_VCAMIO,
 REGULATOR_TYPE_MAX_NUM
};复制

kernel-4.14\arch\arm64\boot\dts\mediatek\cust_mt6***_camera.dtsi

+cam0_vcamio_1p8-supply = <&mt_pmic_vcamio_ldo_reg>;     //add复制

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