Merge tag 'mmc-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Fixup max_discard/trim calculations
   - Announce SD specs greater than 4.0
   - Add discard support for SD cards
   - Don't do retries for CMD6 (SWITCH command)
   - Various cleanups and re-structuring

  MMC host:
   - cqhci:
      * Add maintainers for eMMC CQHCI driver
   - sdhci:
      * Consolidate WP GPIO code
      * Add ADMA3 DMA support for V4 enabled host
      * Fixup card detect support in pci-o2micro driver
      * Add support for CMDQ and SDMMC pads auto-calibration in tegra
        driver
      * Add DCMD support and CMDQ support, support for i.MX6ULL variant,
        fixup HS400 timing issue and add HS400_ES support for i.MX8QXP
        to esdhc-imx driver
      * Avoid CRC errors by adjusting settings to speed mode and fixup
        card initialization for high speed mode in renesas_sdhi
      * Fixup timeout settings for omap
      * Enable 8 bits bus-width support in atmel-mci
      * Convert some legacy code in jz4740 driver to use modern APIs
      * Send a CMD12 to clear DPSM at errors for STM32 sdmmc mmci
        driver"

* tag 'mmc-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (69 commits)
  mmc:fix a bug when max_discard is 0
  mmc: core: Add a debug print when the card may have been replaced
  mmc: core: Add sd discard timeout
  mmc: core: Add discard support to sd
  mmc: sdhci-esdhc-imx: clear the HALT bit when enable CQE
  mmc: core: do not retry CMD6 in __mmc_switch()
  mmc: core: Convert mmc_align_data_size() into an SDIO specific function
  mmc: core: Move mmc_of_parse_voltage() to host.c
  mmc: core: Convert mmc_regulator_get_ocrmask() to static
  mmc: core: Move regulator helpers to separate file
  mmc: of_mmc_spi: Convert to mmc_of_parse_voltage()
  mmc: core: Drop retries as in-parameter to mmc_wait_for_app_cmd()
  mmc: core: Convert mmc_wait_for_app_cmd() to static
  mmc: renesas_sdhi: Change HW adjustment register according to speed mode
  mmc: mmci: Send a CMD12 to clear the DPSM at errors
  mmc: sdhci-xenon: Fixup already marked switch fall-through
  mmc: sdhci-tegra: drop ->get_ro() implementation
  mmc: sdhci-omap: drop ->get_ro() implementation
  mmc: sdhci: use WP GPIO in sdhci_check_ro()
  mmc: wmt-sdmmc: Drop unused include
  ...

1 files changed, 6 insertions, 27 deletions

diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c
index 47056d8d1bac..0bb0b8419016 100644
--- a/drivers/mmc/core/sd_ops.c
+++ b/drivers/mmc/core/sd_ops.c
@@ -52,36 +52,17 @@ int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card)
 }
 EXPORT_SYMBOL_GPL(mmc_app_cmd);
 
-/**
- *	mmc_wait_for_app_cmd - start an application command and wait for
- 			       completion
- *	@host: MMC host to start command
- *	@card: Card to send MMC_APP_CMD to
- *	@cmd: MMC command to start
- *	@retries: maximum number of retries
- *
- *	Sends a MMC_APP_CMD, checks the card response, sends the command
- *	in the parameter and waits for it to complete. Return any error
- *	that occurred while the command was executing.  Do not attempt to
- *	parse the response.
- */
-int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
-	struct mmc_command *cmd, int retries)
+static int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
+				struct mmc_command *cmd)
 {
 	struct mmc_request mrq = {};
-
-	int i, err;
-
-	if (retries < 0)
-		retries = MMC_CMD_RETRIES;
-
-	err = -EIO;
+	int i, err = -EIO;
 
 	/*
 	 * We have to resend MMC_APP_CMD for each attempt so
 	 * we cannot use the retries field in mmc_command.
 	 */
-	for (i = 0;i <= retries;i++) {
+	for (i = 0; i <= MMC_CMD_RETRIES; i++) {
 		err = mmc_app_cmd(host, card);
 		if (err) {
 			/* no point in retrying; no APP commands allowed */
@@ -116,8 +97,6 @@ int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
 	return err;
 }
 
-EXPORT_SYMBOL(mmc_wait_for_app_cmd);
-
 int mmc_app_set_bus_width(struct mmc_card *card, int width)
 {
 	struct mmc_command cmd = {};
@@ -136,7 +115,7 @@ int mmc_app_set_bus_width(struct mmc_card *card, int width)
 		return -EINVAL;
 	}
 
-	return mmc_wait_for_app_cmd(card->host, card, &cmd, MMC_CMD_RETRIES);
+	return mmc_wait_for_app_cmd(card->host, card, &cmd);
 }
 
 int mmc_send_app_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr)
@@ -152,7 +131,7 @@ int mmc_send_app_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr)
 	cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R3 | MMC_CMD_BCR;
 
 	for (i = 100; i; i--) {
-		err = mmc_wait_for_app_cmd(host, NULL, &cmd, MMC_CMD_RETRIES);
+		err = mmc_wait_for_app_cmd(host, NULL, &cmd);
 		if (err)
 			break;