1. If quirk SDHCI_QUIRK_BROKEN_CARD_DETECTION is selected, there is no
card detection available and polling must be used. Gpio detect must
_not_ be supported under this case.
Change the sequence to check SDHCI_QUIRK_BROKEN_CARD_DETECTION first,
which make code more clear.
2. nonremovable card should be also assumed always present.
Signed-off-by: Kevin Liu <kliu5@xxxxxxxxxxx>
---
drivers/mmc/host/sdhci.c | 27 ++++++++++++++-------------
1 file changed, 14 insertions(+), 13 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index c94fd6c..c0c48dd 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1337,19 +1337,20 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
host->mrq = mrq;
- /*
- * Firstly check card presence from cd-gpio. The return could
- * be one of the following possibilities:
- * negative: cd-gpio is not available
- * zero: cd-gpio is used, and card is removed
- * one: cd-gpio is used, and card is present
- */
- present = mmc_gpio_get_cd(host->mmc);
- if (present < 0) {
- /* If polling, assume that the card is always present. */
- if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)
- present = 1;
- else
+ /* If polling/nonremovable, assume that the card is always present. */
+ if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) ||
+ (host->mmc->caps & MMC_CAP_NONREMOVABLE)) {
+ present = 1;
+ } else {
+ /*
+ * Firstly check card presence from cd-gpio. The return could
+ * be one of the following possibilities:
+ * negative: cd-gpio is not available
+ * zero: cd-gpio is used, and card is removed
+ * one: cd-gpio is used, and card is present
+ */
+ present = mmc_gpio_get_cd(host->mmc);
+ if (IS_ERR_VALUE(present))
present = sdhci_readl(host, SDHCI_PRESENT_STATE) &
SDHCI_CARD_PRESENT;
}
--
1.7.9.5
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