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Commit 913047e9 authored by Girish K S's avatar Girish K S Committed by Chris Ball
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mmc: core: Fix voltage select in DDR mode 



This patch fixes the wrong comparison before setting the interface
voltage in DDR mode.

The assignment to the variable ddr before comaprison is either
ddr = MMC_1_2V_DDR_MODE; or ddr == MMC_1_8V_DDR_MODE. But the comparison
is done with the extended csd value if ddr == EXT_CSD_CARD_TYPE_DDR_1_2V.

Signed-off-by: default avatarGirish K S <girish.shivananjappa@linaro.org>
Acked-by: default avatarSubhash Jadavani <subhashj@codeaurora.org>
Acked-by: default avatarPhilip Rakity <prakity@marvell.com>
Cc: <stable@kernel.org>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent 7003fecb

drivers/mmc/core/mmc.c

+1 −1
Original line number Diff line number Diff line
@@ -1058,7 +1058,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, 
			 *

			 * WARNING: eMMC rules are NOT the same as SD DDR

			 */

			if (ddr == EXT_CSD_CARD_TYPE_DDR_1_2V) {

			if (ddr == MMC_1_2V_DDR_MODE) {

				err = mmc_set_signal_voltage(host,

					MMC_SIGNAL_VOLTAGE_120, 0);

				if (err)