mmc: dt: Consolidate DT bindings

This patch unifies the current DT MMC bindings documentation and code,
adds generic MMC DT bindings documentation, and updates .dts files for
consistency.

[cjb: typo fixes, addition of max-frequency property]
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index c5c2a48bdd94..d9a4ef4f1ed0 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -42,7 +42,8 @@ static struct sdhci_ops sdhci_pltfm_ops = {
 #ifdef CONFIG_OF
 static bool sdhci_of_wp_inverted(struct device_node *np)
 {
-        if (of_get_property(np, "sdhci,wp-inverted", NULL))
+        if (of_get_property(np, "sdhci,wp-inverted", NULL) ||
+            of_get_property(np, "wp-inverted", NULL))
                 return true;
 
         /* Old device trees don't have the wp-inverted property. */
@@ -59,13 +60,16 @@ void sdhci_get_of_property(struct platform_device *pdev)
         struct sdhci_host *host = platform_get_drvdata(pdev);
         struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
         const __be32 *clk;
+        u32 bus_width;
         int size;
 
         if (of_device_is_available(np)) {
                 if (of_get_property(np, "sdhci,auto-cmd12", NULL))
                         host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;
 
-                if (of_get_property(np, "sdhci,1-bit-only", NULL))
+                if (of_get_property(np, "sdhci,1-bit-only", NULL) ||
+                    (of_property_read_u32(np, "bus-width", &bus_width) == 0 &&
+                    bus_width == 1))
                         host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA;
 
                 if (sdhci_of_wp_inverted(np))