dm: mmc: Set up the device pointer when using the MMC uclass

Update the existing drivers to set up this new pointer. This will be required
by the MMC uclass.

Signed-off-by: Simon Glass <sjg@chromium.org>

drivers/mmc/omap_hsmmc.c

@@ -825,6 +825,7 @@ static int omap_hsmmc_probe(struct udevice *dev)
 	gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio, GPIOD_IS_IN);
 #endif
 
+	mmc->dev = dev;
 	upriv->mmc = mmc;
 
 	return 0;

drivers/mmc/pic32_sdhci.c

@@ -41,7 +41,12 @@ static int pic32_sdhci_probe(struct udevice *dev)
 		return ret;
 	}
 
-	return add_sdhci(host, f_min_max[1], f_min_max[0]);
+	ret = add_sdhci(host, f_min_max[1], f_min_max[0]);
+	if (ret)
+		return ret;
+	host->mmc->dev = dev;
+
+	return 0;
 }
 
 static const struct udevice_id pic32_sdhci_ids[] = {

drivers/mmc/rockchip_dw_mmc.c

@@ -104,6 +104,7 @@ static int rockchip_dwmmc_probe(struct udevice *dev)
 	if (ret)
 		return ret;
 
+	host->mmc->dev = dev;
 	upriv->mmc = host->mmc;
 
 	return 0;

drivers/mmc/socfpga_dw_mmc.c

@@ -108,6 +108,7 @@ static int socfpga_dwmmc_probe(struct udevice *dev)
 		return ret;
 
 	upriv->mmc = host->mmc;
+	host->mmc->dev = dev;
 
 	return 0;
 }

drivers/mmc/uniphier-sd.c

@@ -725,6 +725,7 @@ int uniphier_sd_probe(struct udevice *dev)
 		return -EIO;
 
 	upriv->mmc = priv->mmc;
+	priv->mmc->dev = dev;
 
 	return 0;
 }

drivers/mmc/zynq_sdhci.c

@@ -35,6 +35,7 @@ static int arasan_sdhci_probe(struct udevice *dev)
 		  CONFIG_ZYNQ_SDHCI_MIN_FREQ);
 
 	upriv->mmc = host->mmc;
+	host->mmc->dev = dev;
 
 	return 0;
 }

include/mmc.h

@@ -381,6 +381,9 @@ struct mmc {
 	char init_in_progress;	/* 1 if we have done mmc_start_init() */
 	char preinit;		/* start init as early as possible */
 	int ddr_mode;
+#ifdef CONFIG_DM_MMC
+	struct udevice *dev;	/* Device for this MMC controller */
+#endif
 };
 
 struct mmc_hwpart_conf {