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>

diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index c5b6e97cb21a44b2d35a6ce2825b2ec041104584..799e23b0a23c5976b4728bd6625b7acdcc633697 100644 (file)
--- 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 */