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| author | Jerome Brunet <jbrunet@baylibre.com> | 2017-08-28 16:29:05 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-08-30 15:03:47 +0200 |
| commit | c36cf1257b391c8b83055df79c8a30c39c69a7b6 (patch) | |
| tree | 353ee5f28542b60a3984e45a771aec0a7ed52038 /drivers/mmc/host/meson-gx-mmc.c | |
| parent | mmc: meson-gx: cfg init overwrite values (diff) | |
| download | linux-c36cf1257b391c8b83055df79c8a30c39c69a7b6.tar.xz linux-c36cf1257b391c8b83055df79c8a30c39c69a7b6.zip | |
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/host/meson-gx-mmc.c')
| -rw-r--r-- | drivers/mmc/host/meson-gx-mmc.c | 22 |
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, |