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Commit 3f6c808e authored by Maxime Ripard's avatar Maxime Ripard Committed by Ulf Hansson
Browse files

mmc: sunxi: Move bus width configuration to a function 



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: default avatarMaxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 0fc4c61f

drivers/mmc/host/sunxi-mmc.c

+17 −12
Original line number Diff line number Diff line
@@ -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);