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mmc: sunxi: Move the card power configuration to a function 

In order to improve readibility and reusability, let's move the card setup
to a small function called by our .set_ios hook.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Maxime Ripard 2018-04-16 16:23:03 +02:00 committed by Ulf Hansson
parent ad04d9555d
commit e27e1f3d04
1 changed files with 25 additions and 15 deletions
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40
drivers/mmc/host/sunxi-mmc.c
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@ -888,17 +888,15 @@ static void sunxi_mmc_set_clk(struct sunxi_mmc_host *host, struct mmc_ios *ios)
/* Android code had a usleep_range(50000, 55000); here */
}
static void sunxi_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
static void sunxi_mmc_card_power(struct sunxi_mmc_host *host,
struct mmc_ios *ios)
{
struct sunxi_mmc_host *host = mmc_priv(mmc);
u32 rval;
struct mmc_host *mmc = host->mmc;
/* Set the power state */
switch (ios->power_mode) {
case MMC_POWER_ON:
break;
case MMC_POWER_UP:
dev_dbg(mmc_dev(mmc), "Powering card up\n");
if (!IS_ERR(mmc->supply.vmmc)) {
host->ferror = mmc_regulator_set_ocr(mmc,
mmc->supply.vmmc,
@ -916,25 +914,37 @@ static void sunxi_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
}
host->vqmmc_enabled = true;
}
host->ferror = sunxi_mmc_init_host(host);
if (host->ferror)
return;
dev_dbg(mmc_dev(mmc), "power on!\n");
break;
case MMC_POWER_OFF:
dev_dbg(mmc_dev(mmc), "power off!\n");
sunxi_mmc_reset_host(host);
dev_dbg(mmc_dev(mmc), "Powering card off\n");
if (!IS_ERR(mmc->supply.vmmc))
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
if (!IS_ERR(mmc->supply.vqmmc) && host->vqmmc_enabled)
regulator_disable(mmc->supply.vqmmc);
host->vqmmc_enabled = false;
break;
default:
dev_dbg(mmc_dev(mmc), "Ignoring unknown card power state\n");
break;
}
}
static void sunxi_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct sunxi_mmc_host *host = mmc_priv(mmc);
if (ios->power_mode == MMC_POWER_OFF)
sunxi_mmc_reset_host(host);
sunxi_mmc_card_power(host, ios);
if (ios->power_mode == MMC_POWER_UP)
sunxi_mmc_init_host(host);
sunxi_mmc_set_bus_width(host, ios->bus_width);
sunxi_mmc_set_clk(host, ios);