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mmc: sunxi: Move bus width configuration to a function

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In order to improve readibility and reusability, let's move the bus width
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 16:23:01 +02:00 committed by Ulf Hansson
parent 0fc4c61fff
commit 3f6c808e52
1 changed files with 17 additions and 12 deletions
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29
drivers/mmc/host/sunxi-mmc.c
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@ -855,6 +855,22 @@ static int sunxi_mmc_clk_set_rate(struct sunxi_mmc_host *host,
return 0;
}
static void sunxi_mmc_set_bus_width(struct sunxi_mmc_host *host,
unsigned char width)
{
switch (width) {
case MMC_BUS_WIDTH_1:
mmc_writel(host, REG_WIDTH, SDXC_WIDTH1);
break;
case MMC_BUS_WIDTH_4:
mmc_writel(host, REG_WIDTH, SDXC_WIDTH4);
break;
case MMC_BUS_WIDTH_8:
mmc_writel(host, REG_WIDTH, SDXC_WIDTH8);
break;
}
}
static void sunxi_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct sunxi_mmc_host *host = mmc_priv(mmc);
@ -903,18 +919,7 @@ static void sunxi_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
break;
}
/* set bus width */
switch (ios->bus_width) {
case MMC_BUS_WIDTH_1:
mmc_writel(host, REG_WIDTH, SDXC_WIDTH1);
break;
case MMC_BUS_WIDTH_4:
mmc_writel(host, REG_WIDTH, SDXC_WIDTH4);
break;
case MMC_BUS_WIDTH_8:
mmc_writel(host, REG_WIDTH, SDXC_WIDTH8);
break;
}
sunxi_mmc_set_bus_width(host, ios->bus_width);
/* set ddr mode */
rval = mmc_readl(host, REG_GCTRL);