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authorJerome Brunet <jbrunet@baylibre.com>2017-08-28 16:29:05 +0200
committerUlf Hansson <ulf.hansson@linaro.org>2017-08-30 15:03:47 +0200
commitc36cf1257b391c8b83055df79c8a30c39c69a7b6 (patch)
tree353ee5f28542b60a3984e45a771aec0a7ed52038 /drivers/mmc
parent3c39e2ca88016fb88d767750cd254d328f84248f (diff)
mmc: meson-gx: rework set_ios function
Remove conditional write of cfg register. Warn if set_clk fails for some reason. Consistently use host->dev instead of mixing with mmc_dev(mmc) Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/meson-gx-mmc.c22
1 files changed, 9 insertions, 13 deletions
diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index 7d14d382cb1c..0d29f1f347eb 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -444,8 +444,8 @@ static void meson_mmc_set_tuning_params(struct mmc_host *mmc)
static void meson_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct meson_host *host = mmc_priv(mmc);
- u32 bus_width;
- u32 val, orig;
+ u32 bus_width, val;
+ int err;
/*
* GPIO regulator, only controls switching between 1v8 and
@@ -473,7 +473,7 @@ static void meson_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
int ret = regulator_enable(mmc->supply.vqmmc);
if (ret < 0)
- dev_err(mmc_dev(mmc),
+ dev_err(host->dev,
"failed to enable vqmmc regulator\n");
else
host->vqmmc_enabled = true;
@@ -482,9 +482,6 @@ static void meson_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
break;
}
-
- meson_mmc_clk_set(host, ios->clock);
-
/* Bus width */
switch (ios->bus_width) {
case MMC_BUS_WIDTH_1:
@@ -503,8 +500,6 @@ static void meson_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
}
val = readl(host->regs + SD_EMMC_CFG);
- orig = val;
-
val &= ~CFG_BUS_WIDTH_MASK;
val |= FIELD_PREP(CFG_BUS_WIDTH_MASK, bus_width);
@@ -518,11 +513,12 @@ static void meson_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (ios->timing == MMC_TIMING_MMC_HS400)
val |= CFG_CHK_DS;
- if (val != orig) {
- writel(val, host->regs + SD_EMMC_CFG);
- dev_dbg(host->dev, "%s: SD_EMMC_CFG: 0x%08x -> 0x%08x\n",
- __func__, orig, val);
- }
+ err = meson_mmc_clk_set(host, ios->clock);
+ if (err)
+ dev_err(host->dev, "Failed to set clock: %d\n,", err);
+
+ writel(val, host->regs + SD_EMMC_CFG);
+ dev_dbg(host->dev, "SD_EMMC_CFG: 0x%08x\n", val);
}
static void meson_mmc_request_done(struct mmc_host *mmc,