@@ -1601,15 +1601,21 @@ static int sdhci_do_get_cd(struct sdhci_host *host)
if (host->flags & SDHCI_DEVICE_DEAD)
return 0;
- /* If polling/nonremovable, assume that the card is always present. */
- if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) ||
- (host->mmc->caps & MMC_CAP_NONREMOVABLE))
+ /* If nonremovable, assume that the card is always present. */
+ if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
return 1;
- /* Try slot gpio detect */
+ /*
+ * Try slot gpio detect, if defined it take precedence
+ * over build in controller functionality
+ */
if (!IS_ERR_VALUE(gpio_cd))
return !!gpio_cd;
+ /* If polling, assume that the card is always present. */
+ if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)
+ return 1;
+
/* Host native card detect */
return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
}
Controller could have BROKEN_CARD_DETECTION quirk set, but drivers could use GPIO to detect card present state. Let, when defined, GPIO take precedence, so drivers could properly detect card state and not use polling. Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org> --- drivers/mmc/host/sdhci.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html