Merge tag 'mmc-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kerne…

…l/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "A couple of MMC host fixes intended for v4.12 rc3:

   - sdhci-xenon: Don't free data for phy allocated by devm*
   - sdhci-iproc: Suppress spurious interrupts
   - cavium: Fix probing race with regulator
   - cavium: Prevent crash with incomplete DT
   - cavium-octeon: Use proper GPIO name for power control
   - cavium-octeon: Fix interrupt enable code"

* tag 'mmc-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read
  mmc: cavium: Fix probing race with regulator
  of/platform: Make of_platform_device_destroy globally visible
  mmc: cavium: Prevent crash with incomplete DT
  mmc: cavium-octeon: Use proper GPIO name for power control
  mmc: cavium-octeon: Fix interrupt enable code
  mmc: sdhci-xenon: kill xenon_clean_phy()

drivers/mmc/host/cavium-octeon.c

@@ -108,7 +108,7 @@ static void octeon_mmc_release_bus(struct cvm_mmc_host *host)
 static void octeon_mmc_int_enable(struct cvm_mmc_host *host, u64 val)
 {
 	writeq(val, host->base + MIO_EMM_INT(host));
-	if (!host->dma_active || (host->dma_active && !host->has_ciu3))
+	if (!host->has_ciu3)
 		writeq(val, host->base + MIO_EMM_INT_EN(host));
 }
 
@@ -267,7 +267,7 @@ static int octeon_mmc_probe(struct platform_device *pdev)
 	}
 
 	host->global_pwr_gpiod = devm_gpiod_get_optional(&pdev->dev,
-							 "power-gpios",
+							 "power",
 							 GPIOD_OUT_HIGH);
 	if (IS_ERR(host->global_pwr_gpiod)) {
 		dev_err(&pdev->dev, "Invalid power GPIO\n");
@@ -288,11 +288,20 @@ static int octeon_mmc_probe(struct platform_device *pdev)
 		if (ret) {
 			dev_err(&pdev->dev, "Error populating slots\n");
 			octeon_mmc_set_shared_power(host, 0);
-			return ret;
+			goto error;
 		}
 		i++;
 	}
 	return 0;
+
+error:
+	for (i = 0; i < CAVIUM_MAX_MMC; i++) {
+		if (host->slot[i])
+			cvm_mmc_of_slot_remove(host->slot[i]);
+		if (host->slot_pdev[i])
+			of_platform_device_destroy(&host->slot_pdev[i]->dev, NULL);
+	}
+	return ret;
 }
 
 static int octeon_mmc_remove(struct platform_device *pdev)

drivers/mmc/host/cavium-thunderx.c

@@ -146,6 +146,12 @@ static int thunder_mmc_probe(struct pci_dev *pdev,
 	return 0;
 
 error:
+	for (i = 0; i < CAVIUM_MAX_MMC; i++) {
+		if (host->slot[i])
+			cvm_mmc_of_slot_remove(host->slot[i]);
+		if (host->slot_pdev[i])
+			of_platform_device_destroy(&host->slot_pdev[i]->dev, NULL);
+	}
 	clk_disable_unprepare(host->clk);
 	return ret;
 }

drivers/mmc/host/cavium.c

@@ -839,14 +839,14 @@ static void cvm_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		cvm_mmc_reset_bus(slot);
 		if (host->global_pwr_gpiod)
 			host->set_shared_power(host, 0);
-		else
+		else if (!IS_ERR(mmc->supply.vmmc))
 			mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
 		break;
 
 	case MMC_POWER_UP:
 		if (host->global_pwr_gpiod)
 			host->set_shared_power(host, 1);
-		else
+		else if (!IS_ERR(mmc->supply.vmmc))
 			mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);
 		break;
 	}
@@ -968,20 +968,15 @@ static int cvm_mmc_of_parse(struct device *dev, struct cvm_mmc_slot *slot)
 		return -EINVAL;
 	}
 
-	mmc->supply.vmmc = devm_regulator_get_optional(dev, "vmmc");
-	if (IS_ERR(mmc->supply.vmmc)) {
-		if (PTR_ERR(mmc->supply.vmmc) == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
-		/*
-		 * Legacy Octeon firmware has no regulator entry, fall-back to
-		 * a hard-coded voltage to get a sane OCR.
-		 */
+	ret = mmc_regulator_get_supply(mmc);
+	if (ret == -EPROBE_DEFER)
+		return ret;
+	/*
+	 * Legacy Octeon firmware has no regulator entry, fall-back to
+	 * a hard-coded voltage to get a sane OCR.
+	 */
+	if (IS_ERR(mmc->supply.vmmc))
 		mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
-	} else {
-		ret = mmc_regulator_get_ocrmask(mmc->supply.vmmc);
-		if (ret > 0)
-			mmc->ocr_avail = ret;
-	}
 
 	/* Common MMC bindings */
 	ret = mmc_of_parse(mmc);

drivers/mmc/host/sdhci-iproc.c

@@ -187,7 +187,8 @@ static const struct sdhci_iproc_data iproc_cygnus_data = {
 };
 
 static const struct sdhci_pltfm_data sdhci_iproc_pltfm_data = {
-	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK,
+	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+		  SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
 	.quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN,
 	.ops = &sdhci_iproc_ops,
 };

drivers/mmc/host/sdhci-xenon-phy.c

@@ -787,14 +787,6 @@ int xenon_phy_adj(struct sdhci_host *host, struct mmc_ios *ios)
 	return ret;
 }
 
-void xenon_clean_phy(struct sdhci_host *host)
-{
-	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct xenon_priv *priv = sdhci_pltfm_priv(pltfm_host);
-
-	kfree(priv->phy_params);
-}
-
 static int xenon_add_phy(struct device_node *np, struct sdhci_host *host,
 			 const char *phy_name)
 {
@@ -819,11 +811,7 @@ static int xenon_add_phy(struct device_node *np, struct sdhci_host *host,
 	if (ret)
 		return ret;
 
-	ret = xenon_emmc_phy_parse_param_dt(host, np, priv->phy_params);
-	if (ret)
-		xenon_clean_phy(host);
-
-	return ret;
+	return xenon_emmc_phy_parse_param_dt(host, np, priv->phy_params);
 }
 
 int xenon_phy_parse_dt(struct device_node *np, struct sdhci_host *host)

drivers/mmc/host/sdhci-xenon.c

@@ -486,7 +486,7 @@ static int xenon_probe(struct platform_device *pdev)
 
 	err = xenon_sdhc_prepare(host);
 	if (err)
-		goto clean_phy_param;
+		goto err_clk;
 
 	err = sdhci_add_host(host);
 	if (err)
@@ -496,8 +496,6 @@ static int xenon_probe(struct platform_device *pdev)
 
 remove_sdhc:
 	xenon_sdhc_unprepare(host);
-clean_phy_param:
-	xenon_clean_phy(host);
 err_clk:
 	clk_disable_unprepare(pltfm_host->clk);
 free_pltfm:
@@ -510,8 +508,6 @@ static int xenon_remove(struct platform_device *pdev)
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 
-	xenon_clean_phy(host);
-
 	sdhci_remove_host(host, 0);
 
 	xenon_sdhc_unprepare(host);

drivers/mmc/host/sdhci-xenon.h

@@ -93,7 +93,6 @@ struct xenon_priv {
 };
 
 int xenon_phy_adj(struct sdhci_host *host, struct mmc_ios *ios);
-void xenon_clean_phy(struct sdhci_host *host);
 int xenon_phy_parse_dt(struct device_node *np,
 		       struct sdhci_host *host);
 void xenon_soc_pad_ctrl(struct sdhci_host *host,

drivers/of/platform.c

@@ -523,7 +523,7 @@ static int __init of_platform_default_populate_init(void)
 arch_initcall_sync(of_platform_default_populate_init);
 #endif
 
-static int of_platform_device_destroy(struct device *dev, void *data)
+int of_platform_device_destroy(struct device *dev, void *data)
 {
 	/* Do not touch devices not populated from the device tree */
 	if (!dev->of_node || !of_node_check_flag(dev->of_node, OF_POPULATED))
@@ -544,6 +544,7 @@ static int of_platform_device_destroy(struct device *dev, void *data)
 	of_node_clear_flag(dev->of_node, OF_POPULATED_BUS);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(of_platform_device_destroy);
 
 /**
  * of_platform_depopulate() - Remove devices populated from device tree

include/linux/of_platform.h

@@ -64,6 +64,7 @@ extern struct platform_device *of_platform_device_create(struct device_node *np,
 						   const char *bus_id,
 						   struct device *parent);
 
+extern int of_platform_device_destroy(struct device *dev, void *data);
 extern int of_platform_bus_probe(struct device_node *root,
 				 const struct of_device_id *matches,
 				 struct device *parent);