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POWER: AVS: rockchip: add rk3399 io domain support

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Change-Id: If4ccc31372f1cdbea84fc27009c1b8f9238ee1e9
Signed-off-by: David Wu <david.wu@rock-chips.com>
This commit is contained in:
David Wu
2016-03-15 23:28:05 +08:00
committed by Gerrit Code Review
parent 564ff29ab3
commit 2d42010d2d
2 changed files with 69 additions and 0 deletions
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11
Documentation/devicetree/bindings/power/rockchip-io-domain.txt
View File

@@ -36,6 +36,8 @@ Required properties:
- "rockchip,rk3366-io-voltage-domain" for rk3366
- "rockchip,rk3368-io-voltage-domain" for rk3368
- "rockchip,rk3368-pmu-io-voltage-domain" for rk3368 pmu-domains
- "rockchip,rk3399-io-voltage-domain" for rk3399
- "rockchip,rk3399-pmu-io-voltage-domain" for rk3399 pmu-domains
- rockchip,grf: phandle to the syscon managing the "general register files"
@@ -89,6 +91,15 @@ Possible supplies for rk3368 pmu-domains:
- pmu-supply: The supply connected to PMUIO_VDD.
- vop-supply: The supply connected to LCDC_VDD.
Possible supplies for rk3399:
- bt656-supply: The supply connected to APIO2_VDD.
- audio-supply: The supply connected to APIO5_VDD.
- sdmmc-supply: The supply connected to SDMMC0_VDD.
- gpio1830 The supply connected to APIO4_VDD.
Possible supplies for rk3399 pmu-domains:
- pmu1830-supply:The supply connected to PMUIO2_VDD.
Example:
io-domains {

58
drivers/power/avs/rockchip-io-domain.c
View File

@@ -51,6 +51,10 @@
#define RK3368_SOC_CON15_FLASH0 BIT(14)
#define RK3368_SOC_FLASH_SUPPLY_NUM 2
#define RK3399_PMUGRF_CON0 0x180
#define RK3399_PMUGRF_CON0_VSEL BIT(8)
#define RK3399_PMUGRF_VSEL_SUPPLY_NUM 9
struct rockchip_iodomain;
/**
@@ -204,6 +208,25 @@ static void rk3368_iodomain_init(struct rockchip_iodomain *iod)
dev_warn(iod->dev, "couldn't update flash0 ctrl\n");
}
static void rk3399_pmu_iodomain_init(struct rockchip_iodomain *iod)
{
int ret;
u32 val;
/* if no pmu io supply we should leave things alone */
if (!iod->supplies[RK3399_PMUGRF_VSEL_SUPPLY_NUM].reg)
return;
/*
* set pmu io iodomain to also use this framework
* instead of a special gpio.
*/
val = RK3399_PMUGRF_CON0_VSEL | (RK3399_PMUGRF_CON0_VSEL << 16);
ret = regmap_write(iod->grf, RK3399_PMUGRF_CON0, val);
if (ret < 0)
dev_warn(iod->dev, "couldn't update pmu io iodomain 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.
@@ -290,6 +313,33 @@ static const struct rockchip_iodomain_soc_data soc_data_rk3368_pmu = {
},
};
static const struct rockchip_iodomain_soc_data soc_data_rk3399 = {
.grf_offset = 0xe640,
.supply_names = {
"bt656", /* APIO2_VDD */
"audio", /* APIO5_VDD */
"sdmmc", /* SDMMC0_VDD */
"gpio1830", /* APIO4_VDD */
},
};
static const struct rockchip_iodomain_soc_data soc_data_rk3399_pmu = {
.grf_offset = 0x180,
.supply_names = {
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
"pmu1830", /* PMUIO2_VDD */
},
.init = rk3399_pmu_iodomain_init,
};
static const struct of_device_id rockchip_iodomain_match[] = {
{
.compatible = "rockchip,rk3188-io-voltage-domain",
@@ -311,6 +361,14 @@ static const struct of_device_id rockchip_iodomain_match[] = {
.compatible = "rockchip,rk3368-pmu-io-voltage-domain",
.data = (void *)&soc_data_rk3368_pmu
},
{
.compatible = "rockchip,rk3399-io-voltage-domain",
.data = (void *)&soc_data_rk3399
},
{
.compatible = "rockchip,rk3399-pmu-io-voltage-domain",
.data = (void *)&soc_data_rk3399_pmu
},
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, rockchip_iodomain_match);