Merge tag 'omap-for-v6.9/n8x0-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes

GPIO regression fixes for n8x0

A series of fixes for n8x0 GPIO regressions caused by the changes to use
GPIO descriptors.

* tag 'omap-for-v6.9/n8x0-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: fix USB regression on Nokia N8x0
  mmc: omap: restore original power up/down steps
  mmc: omap: fix deferred probe
  mmc: omap: fix broken slot switch lookup
  ARM: OMAP2+: fix N810 MMC gpiod table
  ARM: OMAP2+: fix bogus MMC GPIO labels on Nokia N8x0

Link: https://lore.kernel.org/r/pull-1712135932-125424@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

2 files changed, 41 insertions, 30 deletions

diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index 31755a378c73..ff2a4a4d8220 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -79,10 +79,8 @@ static struct musb_hdrc_platform_data tusb_data = {
 static struct gpiod_lookup_table tusb_gpio_table = {
 	.dev_id = "musb-tusb",
 	.table = {
-		GPIO_LOOKUP("gpio-0-15", 0, "enable",
-			    GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("gpio-48-63", 10, "int",
-			    GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-0-31", 0, "enable", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-32-63", 26, "int", GPIO_ACTIVE_HIGH),
 		{ }
 	},
 };
@@ -140,12 +138,11 @@ static int slot1_cover_open;
 static int slot2_cover_open;
 static struct device *mmc_device;
 
-static struct gpiod_lookup_table nokia8xx_mmc_gpio_table = {
+static struct gpiod_lookup_table nokia800_mmc_gpio_table = {
 	.dev_id = "mmci-omap.0",
 	.table = {
 		/* Slot switch, GPIO 96 */
-		GPIO_LOOKUP("gpio-80-111", 16,
-			    "switch", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-96-127", 0, "switch", GPIO_ACTIVE_HIGH),
 		{ }
 	},
 };
@@ -153,12 +150,12 @@ static struct gpiod_lookup_table nokia8xx_mmc_gpio_table = {
 static struct gpiod_lookup_table nokia810_mmc_gpio_table = {
 	.dev_id = "mmci-omap.0",
 	.table = {
+		/* Slot switch, GPIO 96 */
+		GPIO_LOOKUP("gpio-96-127", 0, "switch", GPIO_ACTIVE_HIGH),
 		/* Slot index 1, VSD power, GPIO 23 */
-		GPIO_LOOKUP_IDX("gpio-16-31", 7,
-				"vsd", 1, GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("gpio-0-31", 23, "vsd", 1, GPIO_ACTIVE_HIGH),
 		/* Slot index 1, VIO power, GPIO 9 */
-		GPIO_LOOKUP_IDX("gpio-0-15", 9,
-				"vio", 1, GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("gpio-0-31", 9, "vio", 1, GPIO_ACTIVE_HIGH),
 		{ }
 	},
 };
@@ -415,8 +412,6 @@ static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
 
 static void __init n8x0_mmc_init(void)
 {
-	gpiod_add_lookup_table(&nokia8xx_mmc_gpio_table);
-
 	if (board_is_n810()) {
 		mmc1_data.slots[0].name = "external";
 
@@ -429,6 +424,8 @@ static void __init n8x0_mmc_init(void)
 		mmc1_data.slots[1].name = "internal";
 		mmc1_data.slots[1].ban_openended = 1;
 		gpiod_add_lookup_table(&nokia810_mmc_gpio_table);
+	} else {
+		gpiod_add_lookup_table(&nokia800_mmc_gpio_table);
 	}
 
 	mmc1_data.nr_slots = 2;
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 088f8ed4fdc4..a8ee0df47148 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -1114,10 +1114,25 @@ static void mmc_omap_set_power(struct mmc_omap_slot *slot, int power_on,
 
 	host = slot->host;
 
-	if (slot->vsd)
-		gpiod_set_value(slot->vsd, power_on);
-	if (slot->vio)
-		gpiod_set_value(slot->vio, power_on);
+	if (power_on) {
+		if (slot->vsd) {
+			gpiod_set_value(slot->vsd, power_on);
+			msleep(1);
+		}
+		if (slot->vio) {
+			gpiod_set_value(slot->vio, power_on);
+			msleep(1);
+		}
+	} else {
+		if (slot->vio) {
+			gpiod_set_value(slot->vio, power_on);
+			msleep(50);
+		}
+		if (slot->vsd) {
+			gpiod_set_value(slot->vsd, power_on);
+			msleep(50);
+		}
+	}
 
 	if (slot->pdata->set_power != NULL)
 		slot->pdata->set_power(mmc_dev(slot->mmc), slot->id, power_on,
@@ -1254,18 +1269,18 @@ static int mmc_omap_new_slot(struct mmc_omap_host *host, int id)
 	slot->pdata = &host->pdata->slots[id];
 
 	/* Check for some optional GPIO controls */
-	slot->vsd = gpiod_get_index_optional(host->dev, "vsd",
-					     id, GPIOD_OUT_LOW);
+	slot->vsd = devm_gpiod_get_index_optional(host->dev, "vsd",
+						  id, GPIOD_OUT_LOW);
 	if (IS_ERR(slot->vsd))
 		return dev_err_probe(host->dev, PTR_ERR(slot->vsd),
 				     "error looking up VSD GPIO\n");
-	slot->vio = gpiod_get_index_optional(host->dev, "vio",
-					     id, GPIOD_OUT_LOW);
+	slot->vio = devm_gpiod_get_index_optional(host->dev, "vio",
+						  id, GPIOD_OUT_LOW);
 	if (IS_ERR(slot->vio))
 		return dev_err_probe(host->dev, PTR_ERR(slot->vio),
 				     "error looking up VIO GPIO\n");
-	slot->cover = gpiod_get_index_optional(host->dev, "cover",
-						id, GPIOD_IN);
+	slot->cover = devm_gpiod_get_index_optional(host->dev, "cover",
+						    id, GPIOD_IN);
 	if (IS_ERR(slot->cover))
 		return dev_err_probe(host->dev, PTR_ERR(slot->cover),
 				     "error looking up cover switch GPIO\n");
@@ -1379,13 +1394,6 @@ static int mmc_omap_probe(struct platform_device *pdev)
 	if (IS_ERR(host->virt_base))
 		return PTR_ERR(host->virt_base);
 
-	host->slot_switch = gpiod_get_optional(host->dev, "switch",
-					       GPIOD_OUT_LOW);
-	if (IS_ERR(host->slot_switch))
-		return dev_err_probe(host->dev, PTR_ERR(host->slot_switch),
-				     "error looking up slot switch GPIO\n");
-
-
 	INIT_WORK(&host->slot_release_work, mmc_omap_slot_release_work);
 	INIT_WORK(&host->send_stop_work, mmc_omap_send_stop_work);
 
@@ -1404,6 +1412,12 @@ static int mmc_omap_probe(struct platform_device *pdev)
 	host->dev = &pdev->dev;
 	platform_set_drvdata(pdev, host);
 
+	host->slot_switch = devm_gpiod_get_optional(host->dev, "switch",
+						    GPIOD_OUT_LOW);
+	if (IS_ERR(host->slot_switch))
+		return dev_err_probe(host->dev, PTR_ERR(host->slot_switch),
+				     "error looking up slot switch GPIO\n");
+
 	host->id = pdev->id;
 	host->irq = irq;
 	host->phys_base = res->start;