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| author | David Wu <david.wu@rock-chips.com> | 2024-05-21 23:10:13 +0200 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2024-08-23 11:52:53 +0200 |
| commit | f0d7047889589a4affe7a04d38a408ef45ec58e6 (patch) | |
| tree | 5e57818b2ed4fce1bc94e0e6d142793ff21ddf59 /drivers/soc | |
| parent | dt-bindings: power: rockchip: Document RK3308 IO voltage domains (diff) | |
| download | linux-f0d7047889589a4affe7a04d38a408ef45ec58e6.tar.xz linux-f0d7047889589a4affe7a04d38a408ef45ec58e6.zip | |
soc: rockchip: io-domain: Add RK3308 IO voltage domains
Add IO voltage domains support for the RK3308 SoC.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://lore.kernel.org/r/20240521211029.1236094-11-jonas@kwiboo.se
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/rockchip/io-domain.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/soc/rockchip/io-domain.c b/drivers/soc/rockchip/io-domain.c index 18f809c160a7..fd9fd31f71c2 100644 --- a/drivers/soc/rockchip/io-domain.c +++ b/drivers/soc/rockchip/io-domain.c @@ -39,6 +39,10 @@ #define RK3288_SOC_CON2_FLASH0 BIT(7) #define RK3288_SOC_FLASH_SUPPLY_NUM 2 +#define RK3308_SOC_CON0 0x300 +#define RK3308_SOC_CON0_VCCIO3 BIT(8) +#define RK3308_SOC_VCCIO3_SUPPLY_NUM 3 + #define RK3328_SOC_CON4 0x410 #define RK3328_SOC_CON4_VCCIO2 BIT(7) #define RK3328_SOC_VCCIO2_SUPPLY_NUM 1 @@ -229,6 +233,25 @@ static void rk3288_iodomain_init(struct rockchip_iodomain *iod) dev_warn(iod->dev, "couldn't update flash0 ctrl\n"); } +static void rk3308_iodomain_init(struct rockchip_iodomain *iod) +{ + int ret; + u32 val; + + /* if no vccio3 supply we should leave things alone */ + if (!iod->supplies[RK3308_SOC_VCCIO3_SUPPLY_NUM].reg) + return; + + /* + * set vccio3 iodomain to also use this framework + * instead of a special gpio. + */ + val = RK3308_SOC_CON0_VCCIO3 | (RK3308_SOC_CON0_VCCIO3 << 16); + ret = regmap_write(iod->grf, RK3308_SOC_CON0, val); + if (ret < 0) + dev_warn(iod->dev, "couldn't update vccio3 vsel ctrl\n"); +} + static void rk3328_iodomain_init(struct rockchip_iodomain *iod) { int ret; @@ -376,6 +399,19 @@ static const struct rockchip_iodomain_soc_data soc_data_rk3288 = { .init = rk3288_iodomain_init, }; +static const struct rockchip_iodomain_soc_data soc_data_rk3308 = { + .grf_offset = 0x300, + .supply_names = { + "vccio0", + "vccio1", + "vccio2", + "vccio3", + "vccio4", + "vccio5", + }, + .init = rk3308_iodomain_init, +}; + static const struct rockchip_iodomain_soc_data soc_data_rk3328 = { .grf_offset = 0x410, .supply_names = { @@ -529,6 +565,10 @@ static const struct of_device_id rockchip_iodomain_match[] = { .data = &soc_data_rk3288 }, { + .compatible = "rockchip,rk3308-io-voltage-domain", + .data = &soc_data_rk3308 + }, + { .compatible = "rockchip,rk3328-io-voltage-domain", .data = &soc_data_rk3328 }, |