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PM / AVS: rockchip-io: add io selectors and supplies for rk3308

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This adds the necessary data for handling io voltage domains on the rk3308.
As interesting tidbit, the rk3308 contains one iodomain area at grf,

Change-Id: Ife72a284a8926d02ef5df7a422d41924494d0300
Signed-off-by: David Wu <david.wu@rock-chips.com>
This commit is contained in:
David Wu
2018-02-06 17:26:16 +08:00
parent fe499d0afe
commit 73c45e6cda
2 changed files with 41 additions and 0 deletions
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1
Documentation/devicetree/bindings/power/rockchip-io-domain.txt
View File

@@ -36,6 +36,7 @@ Required properties:
- "rockchip,rk3188-io-voltage-domain" for rk3188
- "rockchip,rk3228-io-voltage-domain" for rk3228
- "rockchip,rk3288-io-voltage-domain" for rk3288
- "rockchip,rk3308-io-voltage-domain" for rk3308
- "rockchip,rk3328-io-voltage-domain" for rk3328
- "rockchip,rk3368-io-voltage-domain" for rk3368
- "rockchip,rk3368-pmu-io-voltage-domain" for rk3368 pmu-domains

40
drivers/power/avs/rockchip-io-domain.c
View File

@@ -47,6 +47,10 @@
#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
@@ -193,6 +197,25 @@ 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;
@@ -340,6 +363,19 @@ 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 = {
@@ -460,6 +496,10 @@ static const struct of_device_id rockchip_iodomain_match[] = {
.compatible = "rockchip,rk3288-io-voltage-domain",
.data = &soc_data_rk3288
},
{
.compatible = "rockchip,rk3308-io-voltage-domain",
.data = &soc_data_rk3308
},
{
.compatible = "rockchip,rk3328-io-voltage-domain",
.data = &soc_data_rk3328