mmc: sdhci: Get rid of SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2144641

commit 6fbde9e
Author: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 26 Sep 2022 22:20:21 +0300

    SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS is used by only ENE controllers but can
    be replaced by driver code.

    Amend the ENE code to hook the ->set_ios() mmc host operation and do the
    reset there.

    Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
    Reviewed-by: Thierry Reding <treding@nvidia.com>
    Link: https://lore.kernel.org/r/20220926192022.85660-4-adrian.hunter@intel.com
    Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Signed-off-by: Mark Salter <msalter@redhat.com>

Author: mosalter

drivers/mmc/host/sdhci-pci-core.c

@@ -297,15 +297,36 @@ static const struct sdhci_pci_fixes sdhci_ricoh_mmc = {
 			  SDHCI_QUIRK_MISSING_CAPS
 };
 
+static void ene_714_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+	struct sdhci_host *host = mmc_priv(mmc);
+
+	sdhci_set_ios(mmc, ios);
+
+	/*
+	 * Some (ENE) controllers misbehave on some ios operations,
+	 * signalling timeout and CRC errors even on CMD0. Resetting
+	 * it on each ios seems to solve the problem.
+	 */
+	if (!(host->flags & SDHCI_DEVICE_DEAD))
+		sdhci_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);
+}
+
+static int ene_714_probe_slot(struct sdhci_pci_slot *slot)
+{
+	slot->host->mmc_host_ops.set_ios = ene_714_set_ios;
+	return 0;
+}
+
 static const struct sdhci_pci_fixes sdhci_ene_712 = {
 	.quirks		= SDHCI_QUIRK_SINGLE_POWER_WRITE |
 			  SDHCI_QUIRK_BROKEN_DMA,
 };
 
 static const struct sdhci_pci_fixes sdhci_ene_714 = {
 	.quirks		= SDHCI_QUIRK_SINGLE_POWER_WRITE |
-			  SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS |
 			  SDHCI_QUIRK_BROKEN_DMA,
+	.probe_slot	= ene_714_probe_slot,
 };
 
 static const struct sdhci_pci_fixes sdhci_cafe = {

drivers/mmc/host/sdhci.c

@@ -2403,14 +2403,6 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		host->ops->set_clock(host, host->clock);
 	} else
 		sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
-
-	/*
-	 * Some (ENE) controllers go apeshit on some ios operation,
-	 * signalling timeout and CRC errors even on CMD0. Resetting
-	 * it on each ios seems to solve the problem.
-	 */
-	if (host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS)
-		sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);
 }
 EXPORT_SYMBOL_GPL(sdhci_set_ios);
 

drivers/mmc/host/sdhci.h

@@ -376,8 +376,6 @@ struct sdhci_host {
 #define SDHCI_QUIRK_NO_CARD_NO_RESET			(1<<2)
 /* Controller doesn't like clearing the power reg before a change */
 #define SDHCI_QUIRK_SINGLE_POWER_WRITE			(1<<3)
-/* Controller has flaky internal state so reset it on each ios change */
-#define SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS		(1<<4)
 /* Controller has an unusable DMA engine */
 #define SDHCI_QUIRK_BROKEN_DMA				(1<<5)
 /* Controller has an unusable ADMA engine */