diff options
| -rw-r--r-- | board/pazquel/board.c | 28 | ||||
| -rw-r--r-- | board/pazquel/board.h | 5 |
2 files changed, 33 insertions, 0 deletions
diff --git a/board/pazquel/board.c b/board/pazquel/board.c index 2b06f53f33..1d3a601fad 100644 --- a/board/pazquel/board.c +++ b/board/pazquel/board.c @@ -356,6 +356,29 @@ void board_tcpc_init(void) } DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C+1); +static void da9313_pvc_mode_ctrl(int enable) +{ + /* + * On enable, PVC operates in automatic frequency mode. + * On disable, PVC operates in fixed frequency mode. + */ + if (enable) + i2c_update8(I2C_PORT_POWER, DA9313_I2C_ADDR_FLAGS, + DA9313_REG_PVC_CTRL, + DA9313_PVC_CTRL_PVC_MODE, MASK_SET); + else + i2c_update8(I2C_PORT_POWER, DA9313_I2C_ADDR_FLAGS, + DA9313_REG_PVC_CTRL, + DA9313_PVC_CTRL_PVC_MODE, MASK_CLR); +} + +void da9313_init(void) +{ + /* PVC operates in fixed frequency mode in S0. */ + da9313_pvc_mode_ctrl(0); +} +DECLARE_HOOK(HOOK_INIT, da9313_init, HOOK_PRIO_DEFAULT+1); + void board_hibernate(void) { int i; @@ -387,12 +410,17 @@ static void board_chipset_suspend(void) */ gpio_set_level(GPIO_ENABLE_BACKLIGHT, 0); pwm_enable(PWM_CH_DISPLIGHT, 0); + + /* PVC operates in automatic frequency mode in S3. */ + da9313_pvc_mode_ctrl(1); } DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT); /* Called on AP S3 -> S0 transition */ static void board_chipset_resume(void) { + /* PVC operates in fixed frequency mode in S0. */ + da9313_pvc_mode_ctrl(0); /* Turn on display and keyboard backlight in S0. */ gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1); if (pwm_get_duty(PWM_CH_DISPLIGHT)) diff --git a/board/pazquel/board.h b/board/pazquel/board.h index f3a0d55b17..b55fe0974e 100644 --- a/board/pazquel/board.h +++ b/board/pazquel/board.h @@ -72,6 +72,11 @@ #define GPIO_WP_L GPIO_EC_WP_ODL #define GPIO_SWITCHCAP_PG GPIO_SWITCHCAP_GPIO_1 #define GPIO_ACOK_OD GPIO_CHG_ACOK_OD +/* Da9313 */ +#define DA9313_I2C_ADDR_FLAGS 0x68 +#define DA9313_REG_PVC_CTRL 0x04 +#define DA9313_PVC_CTRL_PVC_MODE BIT(1) +#define DA9313_PVC_CTRL_PVC_EN BIT(0) #ifndef __ASSEMBLER__ |