From: Adrian Hunter <adrian.hunter@intel.com>
To: Ulf Hansson <ulf.hansson@linaro.org>, Chris Ball <chris@printf.net>
Cc: linux-mmc <linux-mmc@vger.kernel.org>
Subject: [PATCH V3 3/4] mmc: sdhci: Clear also HS400 1.2V capability if 1.2V is not supported
Date: Thu, 6 Nov 2014 15:19:05 +0200 [thread overview]
Message-ID: <1415279946-5054-4-git-send-email-adrian.hunter@intel.com> (raw)
In-Reply-To: <1415279946-5054-1-git-send-email-adrian.hunter@intel.com>
1.2V HS200 mode capability is cleared if there is not a voltage
regulator that supports 1.2V. Do the same for 1.2V HS400 mode.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
drivers/mmc/host/sdhci.c | 13 +++++++------
include/linux/mmc/host.h | 1 +
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index c2f4754..5589563 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -3115,16 +3115,17 @@ int sdhci_add_host(struct sdhci_host *host)
/* SD3.0: SDR104 is supported so (for eMMC) the caps2
* field can be promoted to support HS200.
*/
- if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200)) {
+ if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200))
mmc->caps2 |= MMC_CAP2_HS200;
- if (IS_ERR(mmc->supply.vqmmc) ||
- !regulator_is_supported_voltage
- (mmc->supply.vqmmc, 1100000, 1300000))
- mmc->caps2 &= ~MMC_CAP2_HS200_1_2V_SDR;
- }
} else if (caps[1] & SDHCI_SUPPORT_SDR50)
mmc->caps |= MMC_CAP_UHS_SDR50;
+ if ((mmc->caps2 & MMC_CAP2_HSX00_1_2V) &&
+ (IS_ERR(mmc->supply.vqmmc) ||
+ !regulator_is_supported_voltage(mmc->supply.vqmmc, 1100000,
+ 1300000)))
+ mmc->caps2 &= ~MMC_CAP2_HSX00_1_2V;
+
if ((caps[1] & SDHCI_SUPPORT_DDR50) &&
!(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50))
mmc->caps |= MMC_CAP_UHS_DDR50;
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index df0c153..9f32270 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -289,6 +289,7 @@ struct mmc_host {
#define MMC_CAP2_HS400_1_2V (1 << 16) /* Can support HS400 1.2V */
#define MMC_CAP2_HS400 (MMC_CAP2_HS400_1_8V | \
MMC_CAP2_HS400_1_2V)
+#define MMC_CAP2_HSX00_1_2V (MMC_CAP2_HS200_1_2V_SDR | MMC_CAP2_HS400_1_2V)
#define MMC_CAP2_SDIO_IRQ_NOTHREAD (1 << 17)
mmc_pm_flag_t pm_caps; /* supported pm features */
--
1.9.1
next prev parent reply other threads:[~2014-11-06 13:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-06 13:19 [PATCH V3 0/4] mmc: sdhci: Add HS400 support to SDHCI driver Adrian Hunter
2014-11-06 13:19 ` [PATCH V3 1/4] mmc: sdhci: Remove unused SDHCI_CTRL_HS_SDR200 Adrian Hunter
2014-11-06 13:19 ` [PATCH V3 2/4] mmc: sdhci: Fix vqmmc error setting Adrian Hunter
2014-11-06 13:19 ` Adrian Hunter [this message]
2014-11-06 13:19 ` [PATCH V3 4/4] mmc: sdhci: Add HS400 support to SDHCI driver Adrian Hunter
2014-11-06 13:33 ` [PATCH V3 0/4] " Ulf Hansson
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