On Dec 15, 2011, at 9:06 AM, Subhash Jadavani wrote: > > >> -----Original Message----- >> From: [email protected] [mailto:linux-mmc- >> [email protected]] On Behalf Of Girish K S >> Sent: Thursday, December 15, 2011 5:28 PM >> To: [email protected] >> Cc: [email protected]; [email protected]; Girish K S; >> Philip Rakity; Arindam Nath; Chris Ball >> Subject: [PATCH] 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 wth the extended csd value if (ddr == >> EXT_CSD_CARD_TYPE_DDR_1_2V) >> >> cc: Philip Rakity <[email protected]> >> cc: Arindam Nath <[email protected]> >> cc: Chris Ball <[email protected]> >> Signed-off-by: Girish K S <[email protected]> >> --- >> drivers/mmc/core/mmc.c | 2 +- >> 1 files changed, 1 insertions(+), 1 deletions(-) >> >> diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c >> index 006e932..f0a9f1f 100644 >> --- a/drivers/mmc/core/mmc.c >> +++ b/drivers/mmc/core/mmc.c >> @@ -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) { > > Looks fine. > Acked-by: Subhash Jadavani <[email protected]>
Acked-by: Philip Rakity <[email protected]> NOTE: standard sdhci controller (version 3.0) does not support 1.2v signaling. > >> err = mmc_set_signal_voltage(host, >> MMC_SIGNAL_VOLTAGE_120, 0); >> if (err) >> -- >> 1.7.1 >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in >> the body of a message to [email protected] >> More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
