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authorJaehoon Chung <jh80.chung@samsung.com>2016-11-24 14:04:41 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2016-12-05 12:31:16 +0300
commitd10111cf8586e16dbdbe8ed60de7065b54a70df1 (patch)
tree60e13092eba7612ea57b43966593f629242db9f8 /drivers/mmc/host/dw_mmc.c
parent1c238a95a727e8cd3fe1c97a653c4101b8dd39d2 (diff)
downloadlinux-d10111cf8586e16dbdbe8ed60de7065b54a70df1.tar.xz
mmc: dw_mmc: add the debug message for polling and non-removable
If card is polling or non-removable, display the more exact message. It's helpful to debug which detecting scheme is using. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/dw_mmc.c')
-rw-r--r--drivers/mmc/host/dw_mmc.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index c0e96ade4cc9..45b1a3de0b68 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1525,9 +1525,23 @@ static int dw_mci_get_cd(struct mmc_host *mmc)
int gpio_cd = mmc_gpio_get_cd(mmc);
/* Use platform get_cd function, else try onboard card detect */
- if ((mmc->caps & MMC_CAP_NEEDS_POLL) || !mmc_card_is_removable(mmc))
+ if (((mmc->caps & MMC_CAP_NEEDS_POLL)
+ || !mmc_card_is_removable(mmc))) {
present = 1;
- else if (gpio_cd >= 0)
+
+ if (!test_bit(DW_MMC_CARD_PRESENT, &slot->flags)) {
+ if (mmc->caps & MMC_CAP_NEEDS_POLL) {
+ dev_info(&mmc->class_dev,
+ "card is polling.\n");
+ } else {
+ dev_info(&mmc->class_dev,
+ "card is non-removable.\n");
+ }
+ set_bit(DW_MMC_CARD_PRESENT, &slot->flags);
+ }
+
+ return present;
+ } else if (gpio_cd >= 0)
present = gpio_cd;
else
present = (mci_readl(slot->host, CDETECT) & (1 << slot->id))