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authorMichał Mirosław <mirq-linux@rere.qmqm.pl>2020-03-15 17:44:25 +0100
committerUlf Hansson <ulf.hansson@linaro.org>2020-03-17 12:28:18 +0100
commit53dd0a7cd65edc83b0c243d1c08377c8b876b2ee (patch)
tree6dbfcca27c68dabef37b0931e986540d0e1c8457 /drivers
parent18b587b45c13bb6a07ed0edac15f06892593d07a (diff)
mmc: sdhci-of-at91: fix cd-gpios for SAMA5D2
SAMA5D2x doesn't drive CMD line if GPIO is used as CD line (at least SAMA5D27 doesn't). Fix this by forcing card-detect in the module if module-controlled CD is not used. Fixed commit addresses the problem only for non-removable cards. This amends it to also cover gpio-cd case. Cc: stable@vger.kernel.org Fixes: 7a1e3f143176 ("mmc: sdhci-of-at91: force card detect value for non removable devices") Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/8d10950d9940468577daef4772b82a071b204716.1584290561.git.mirq-linux@rere.qmqm.pl Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/host/sdhci-of-at91.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index ab2bd314a390..fcef5c0d0908 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/drivers/mmc/host/sdhci-of-at91.c
@@ -132,7 +132,8 @@ static void sdhci_at91_reset(struct sdhci_host *host, u8 mask)
sdhci_reset(host, mask);
- if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+ if ((host->mmc->caps & MMC_CAP_NONREMOVABLE)
+ || mmc_gpio_get_cd(host->mmc) >= 0)
sdhci_at91_set_force_card_detect(host);
if (priv->cal_always_on && (mask & SDHCI_RESET_ALL))
@@ -427,8 +428,11 @@ static int sdhci_at91_probe(struct platform_device *pdev)
* detection procedure using the SDMCC_CD signal is bypassed.
* This bit is reset when a software reset for all command is performed
* so we need to implement our own reset function to set back this bit.
+ *
+ * WA: SAMA5D2 doesn't drive CMD if using CD GPIO line.
*/
- if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+ if ((host->mmc->caps & MMC_CAP_NONREMOVABLE)
+ || mmc_gpio_get_cd(host->mmc) >= 0)
sdhci_at91_set_force_card_detect(host);
pm_runtime_put_autosuspend(&pdev->dev);