We've introduced a new helper in the MMC core:
mmc_regulator_set_vqmmc(). Let's use this in dw_mmc. Using this new
helper has some advantages:
1. We get the mmc_regulator_set_vqmmc() behavior of trying to match
VQMMC and VMMC when the signal voltage is 3.3V. This ensures max
compatibility.
2. We get rid of a few more warnings when probing unsupported
voltages.
3. We get rid of some non-dw_mmc specific code in dw_mmc.
Signed-off-by: Doug Anderson <diand...@chromium.org>
---
Changes in v2: None
drivers/mmc/host/dw_mmc.c | 17 +----------------
1 file changed, 1 insertion(+), 16 deletions(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 67c0451..4ae800c 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1160,8 +1160,6 @@ static int dw_mci_switch_voltage(struct mmc_host *mmc,
struct mmc_ios *ios)
struct dw_mci *host = slot->host;
u32 uhs;
u32 v18 = SDMMC_UHS_18V << slot->id;
- int min_uv, max_uv;
- int ret;
/*
* Program the voltage. Note that some instances of dw_mmc may use
@@ -1170,24 +1168,11 @@ static int dw_mci_switch_voltage(struct mmc_host *mmc,
struct mmc_ios *ios)
*/
uhs = mci_readl(host, UHS_REG);
if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_330) {
- min_uv = 2700000;
- max_uv = 3600000;
uhs &= ~v18;
} else {
- min_uv = 1700000;
- max_uv = 1950000;
uhs |= v18;
}
- if (!IS_ERR(mmc->supply.vqmmc)) {
- ret = regulator_set_voltage(mmc->supply.vqmmc, min_uv, max_uv);
-
- if (ret) {
- dev_dbg(&mmc->class_dev,
- "Regulator set error %d: %d - %d\n",
- ret, min_uv, max_uv);
- return ret;
- }
- }
+ mmc_regulator_set_vqmmc(mmc, ios);
mci_writel(host, UHS_REG, uhs);
return 0;
--
2.2.0.rc0.207.ga3a616c
--
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