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mmc: sdhci-s3c: use generic sdhci_set_bus_width() 

Now that sdhci_set_bus_width() supports 8-bit bus widths based on the
MMC_CAP_8_BIT_DATA capability flag, replace the sdhci-s3c version with
the generic sdhci version.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Michał Mirosław 2017-08-14 22:00:26 +02:00 committed by Ulf Hansson
parent adc1639863
commit 5b7f5eafb4
1 changed files with 1 additions and 33 deletions
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34
drivers/mmc/host/sdhci-s3c.c
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@ -414,43 +414,11 @@ static void sdhci_cmu_set_clock(struct sdhci_host *host, unsigned int clock)
sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
} }
/**
* sdhci_s3c_set_bus_width - support 8bit buswidth
* @host: The SDHCI host being queried
* @width: MMC_BUS_WIDTH_ macro for the bus width being requested
*
* We have 8-bit width support but is not a v3 controller.
* So we add platform_bus_width() and support 8bit width.
*/
static void sdhci_s3c_set_bus_width(struct sdhci_host *host, int width)
{
u8 ctrl;
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
switch (width) {
case MMC_BUS_WIDTH_8:
ctrl |= SDHCI_CTRL_8BITBUS;
ctrl &= ~SDHCI_CTRL_4BITBUS;
break;
case MMC_BUS_WIDTH_4:
ctrl |= SDHCI_CTRL_4BITBUS;
ctrl &= ~SDHCI_CTRL_8BITBUS;
break;
default:
ctrl &= ~SDHCI_CTRL_4BITBUS;
ctrl &= ~SDHCI_CTRL_8BITBUS;
break;
}
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
}
static struct sdhci_ops sdhci_s3c_ops = { static struct sdhci_ops sdhci_s3c_ops = {
.get_max_clock = sdhci_s3c_get_max_clk, .get_max_clock = sdhci_s3c_get_max_clk,
.set_clock = sdhci_s3c_set_clock, .set_clock = sdhci_s3c_set_clock,
.get_min_clock = sdhci_s3c_get_min_clock, .get_min_clock = sdhci_s3c_get_min_clock,
.set_bus_width = sdhci_s3c_set_bus_width, .set_bus_width = sdhci_set_bus_width,
.reset = sdhci_reset, .reset = sdhci_reset,
.set_uhs_signaling = sdhci_set_uhs_signaling, .set_uhs_signaling = sdhci_set_uhs_signaling,
}; };