mmc: omap_hsmmc: Check if MMC slot name is passed in pdata

The legacy user space for n900 relies on the MMC slot names.
Let's check if those are passed in pdata and use them.

As this makes the DT booting compatible with legacy booting,
we should be able to start dropping omap3 legacy booting
support in v4.8.

Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: linux-mmc@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index e9d75c6dd516f2f62d03e48ef2fa04cdc3c0d2ff..3563321a3cf30f39feffd1168544883330e8e17a 100644 (file)
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1946,13 +1946,17 @@ MODULE_DEVICE_TABLE(of, omap_mmc_of_match);
 
 static struct omap_hsmmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
 {
-       struct omap_hsmmc_platform_data *pdata;
+       struct omap_hsmmc_platform_data *pdata, *legacy;
        struct device_node *np = dev->of_node;
 
        pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
        if (!pdata)
                return ERR_PTR(-ENOMEM); /* out of memory */
 
+       legacy = dev_get_platdata(dev);
+       if (legacy && legacy->name)
+               pdata->name = legacy->name;
+
        if (of_find_property(np, "ti,dual-volt", NULL))
                pdata->controller_flags |= OMAP_HSMMC_SUPPORTS_DUAL_VOLT;