mmc: sdhci-dove: DT support for sdhci-dove

This patch adds device tree support and binding documentation for
sdhci-dove.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

Documentation/devicetree/bindings/mmc/sdhci-dove.txt

+* Marvell sdhci-dove controller
+
+This file documents differences between the core properties in mmc.txt
+and the properties used by the sdhci-pxav2 and sdhci-pxav3 drivers.
+
+- compatible: Should be "marvell,dove-sdhci".
+
+Example:
+
+sdio0: sdio@92000 {
+	compatible = "marvell,dove-sdhci";
+	reg = <0x92000 0x100>;
+	interrupts = <35>;
+};

drivers/mmc/host/sdhci-dove.c

@@ -24,6 +24,7 @@
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/mmc/host.h>
+#include <linux/of.h>
 
 #include "sdhci-pltfm.h"
 
@@ -126,11 +127,18 @@ static int __devexit sdhci_dove_remove(struct platform_device *pdev)
 	return sdhci_pltfm_unregister(pdev);
 }
 
+static const struct of_device_id sdhci_dove_of_match_table[] __devinitdata = {
+	{ .compatible = "marvell,dove-sdhci", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, sdhci_dove_of_match_table);
+
 static struct platform_driver sdhci_dove_driver = {
 	.driver		= {
 		.name	= "sdhci-dove",
 		.owner	= THIS_MODULE,
 		.pm	= SDHCI_PLTFM_PMOPS,
+		.of_match_table = of_match_ptr(sdhci_dove_of_match_table),
 	},
 	.probe		= sdhci_dove_probe,
 	.remove		= __devexit_p(sdhci_dove_remove),