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authorWolfram Sang <wsa+renesas@sang-engineering.com>2020-08-21 09:35:33 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2020-09-07 10:11:29 +0300
commit6932794192f63c5e105eade19fba26b8ef29ec79 (patch)
treea19d6f9ac4805455501d10e339843684d4e90b32 /include/linux/mmc
parent46f4a69ec8ed6ab9f6a6172afe50df792c8bc1b6 (diff)
downloadlinux-6932794192f63c5e105eade19fba26b8ef29ec79.tar.xz
mmc: core: Improve documentation of MMC_CAP_HW_RESET
MMC_CAP_HW_RESET means that the controller is capable of resetting the eMMC device via RST_n signal, not a reset of the controller. Two drivers got this wrong, so let's make it more clear. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20200821063533.3771-1-wsa+renesas@sang-engineering.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/linux/mmc')
-rw-r--r--include/linux/mmc/host.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index c5b6e97cb21a..799e23b0a23c 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -163,6 +163,7 @@ struct mmc_host_ops {
int (*select_drive_strength)(struct mmc_card *card,
unsigned int max_dtr, int host_drv,
int card_drv, int *drv_type);
+ /* Reset the eMMC card via RST_n */
void (*hw_reset)(struct mmc_host *host);
void (*card_event)(struct mmc_host *host);
@@ -346,7 +347,7 @@ struct mmc_host {
#define MMC_CAP_CD_WAKE (1 << 28) /* Enable card detect wake */
#define MMC_CAP_CMD_DURING_TFR (1 << 29) /* Commands during data transfer */
#define MMC_CAP_CMD23 (1 << 30) /* CMD23 supported. */
-#define MMC_CAP_HW_RESET (1 << 31) /* Hardware reset */
+#define MMC_CAP_HW_RESET (1 << 31) /* Reset the eMMC card via RST_n */
u32 caps2; /* More host capabilities */