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mmc: dw_mmc: fix misleading comment in dw_mci_rk3288_set_ios 

DDR52 with 8-bit mode should be handled in a different way when
requesting ciu_clk. However DDR50 is used for SDMMC/SDIO and
could never be possible with 8-bit mode. It's trival but misleading.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Shawn Lin 2018-04-05 18:31:42 +08:00 committed by Ulf Hansson
parent ef6b75671b
commit d39b1b2abf
1 changed files with 2 additions and 3 deletions
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5
drivers/mmc/host/dw_mmc-rockchip.c
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@ -44,9 +44,8 @@ static void dw_mci_rk3288_set_ios(struct dw_mci *host, struct mmc_ios *ios)
* bus_hz = cclkin / RK3288_CLKGEN_DIV
* ios->clock = (div == 0) ? bus_hz : (bus_hz / (2 * div))
*
* Note: div can only be 0 or 1
* if DDR50 8bit mode(only emmc work in 8bit mode),
* div must be set 1
* Note: div can only be 0 or 1, but div must be set to 1 for eMMC
* DDR52 8-bit mode.
*/
if (ios->bus_width == MMC_BUS_WIDTH_8 &&
ios->timing == MMC_TIMING_MMC_DDR52)