diff options
Diffstat (limited to 'kernel/drivers/power/avs')
| -rw-r--r-- | kernel/drivers/power/avs/Kconfig | 2 | ||||
| -rw-r--r-- | kernel/drivers/power/avs/rockchip-io-domain.c | 60 |
2 files changed, 61 insertions, 1 deletions
diff --git a/kernel/drivers/power/avs/Kconfig b/kernel/drivers/power/avs/Kconfig index 7f3d389bd..a67eeace6 100644 --- a/kernel/drivers/power/avs/Kconfig +++ b/kernel/drivers/power/avs/Kconfig @@ -13,7 +13,7 @@ menuconfig POWER_AVS config ROCKCHIP_IODOMAIN tristate "Rockchip IO domain support" - depends on ARCH_ROCKCHIP && OF + depends on POWER_AVS && ARCH_ROCKCHIP && OF help Say y here to enable support io domains on Rockchip SoCs. It is necessary for the io domain setting of the SoC to match the diff --git a/kernel/drivers/power/avs/rockchip-io-domain.c b/kernel/drivers/power/avs/rockchip-io-domain.c index 3ae35d059..80994566a 100644 --- a/kernel/drivers/power/avs/rockchip-io-domain.c +++ b/kernel/drivers/power/avs/rockchip-io-domain.c @@ -43,6 +43,10 @@ #define RK3288_SOC_CON2_FLASH0 BIT(7) #define RK3288_SOC_FLASH_SUPPLY_NUM 2 +#define RK3368_SOC_CON15 0x43c +#define RK3368_SOC_CON15_FLASH0 BIT(14) +#define RK3368_SOC_FLASH_SUPPLY_NUM 2 + struct rockchip_iodomain; /** @@ -158,6 +162,25 @@ static void rk3288_iodomain_init(struct rockchip_iodomain *iod) dev_warn(iod->dev, "couldn't update flash0 ctrl\n"); } +static void rk3368_iodomain_init(struct rockchip_iodomain *iod) +{ + int ret; + u32 val; + + /* if no flash supply we should leave things alone */ + if (!iod->supplies[RK3368_SOC_FLASH_SUPPLY_NUM].reg) + return; + + /* + * set flash0 iodomain to also use this framework + * instead of a special gpio. + */ + val = RK3368_SOC_CON15_FLASH0 | (RK3368_SOC_CON15_FLASH0 << 16); + ret = regmap_write(iod->grf, RK3368_SOC_CON15, val); + if (ret < 0) + dev_warn(iod->dev, "couldn't update flash0 ctrl\n"); +} + /* * On the rk3188 the io-domains are handled by a shared register with the * lower 8 bits being still being continuing drive-strength settings. @@ -201,6 +224,34 @@ static const struct rockchip_iodomain_soc_data soc_data_rk3288 = { .init = rk3288_iodomain_init, }; +static const struct rockchip_iodomain_soc_data soc_data_rk3368 = { + .grf_offset = 0x900, + .supply_names = { + NULL, /* reserved */ + "dvp", /* DVPIO_VDD */ + "flash0", /* FLASH0_VDD (emmc) */ + "wifi", /* APIO2_VDD (sdio0) */ + NULL, + "audio", /* APIO3_VDD */ + "sdcard", /* SDMMC0_VDD (sdmmc) */ + "gpio30", /* APIO1_VDD */ + "gpio1830", /* APIO4_VDD (gpujtag) */ + }, + .init = rk3368_iodomain_init, +}; + +static const struct rockchip_iodomain_soc_data soc_data_rk3368_pmu = { + .grf_offset = 0x100, + .supply_names = { + NULL, + NULL, + NULL, + NULL, + "pmu", /*PMU IO domain*/ + "vop", /*LCDC IO domain*/ + }, +}; + static const struct of_device_id rockchip_iodomain_match[] = { { .compatible = "rockchip,rk3188-io-voltage-domain", @@ -210,8 +261,17 @@ static const struct of_device_id rockchip_iodomain_match[] = { .compatible = "rockchip,rk3288-io-voltage-domain", .data = (void *)&soc_data_rk3288 }, + { + .compatible = "rockchip,rk3368-io-voltage-domain", + .data = (void *)&soc_data_rk3368 + }, + { + .compatible = "rockchip,rk3368-pmu-io-voltage-domain", + .data = (void *)&soc_data_rk3368_pmu + }, { /* sentinel */ }, }; +MODULE_DEVICE_TABLE(of, rockchip_iodomain_match); static int rockchip_iodomain_probe(struct platform_device *pdev) { |