mmc: rename mmc_can_reset() to mmc_card_can_reset()

mmc_can_* functions sometimes relate to the card and sometimes to the host.
Make it obvious by renaming this function to include 'card'. Also, convert to
proper bool type while we are here. Conversion was simplified by
inverting the logic.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20250401095847.29271-6-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Author: Wolfram Sang

drivers/mmc/core/mmc.c

@@ -2269,14 +2269,12 @@ static int mmc_runtime_resume(struct mmc_host *host)
 	return 0;
 }
 
-static int mmc_can_reset(struct mmc_card *card)
+static bool mmc_card_can_reset(struct mmc_card *card)
 {
 	u8 rst_n_function;
 
 	rst_n_function = card->ext_csd.rst_n_function;
-	if ((rst_n_function & EXT_CSD_RST_N_EN_MASK) != EXT_CSD_RST_N_ENABLED)
-		return 0;
-	return 1;
+	return ((rst_n_function & EXT_CSD_RST_N_EN_MASK) == EXT_CSD_RST_N_ENABLED);
 }
 
 static int _mmc_hw_reset(struct mmc_host *host)
@@ -2290,7 +2288,7 @@ static int _mmc_hw_reset(struct mmc_host *host)
 	_mmc_flush_cache(host);
 
 	if ((host->caps & MMC_CAP_HW_RESET) && host->ops->card_hw_reset &&
-	     mmc_can_reset(card)) {
+	     mmc_card_can_reset(card)) {
 		/* If the card accept RST_n signal, send it. */
 		mmc_set_clock(host, host->f_init);
 		host->ops->card_hw_reset(host);