mmc: mxs-mmc: get rid of the use of cpu_is_xxx

The register HW_SSP_VERSION is broken for ssp version detection,
as the address of the register is different between imx23 and imx28.
Let's use platform_device_id to detect the device, so that the use
of cpu_is_xxx can be removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Chris Ball <cjb@laptop.org>

2 files changed, 12 insertions, 10 deletions

diff --git a/arch/arm/mach-mxs/devices/platform-mxs-mmc.c b/arch/arm/mach-mxs/devices/platform-mxs-mmc.c
index bef9d923f54e..b33c9d05c552 100644
--- a/arch/arm/mach-mxs/devices/platform-mxs-mmc.c
+++ b/arch/arm/mach-mxs/devices/platform-mxs-mmc.c
@@ -17,8 +17,9 @@
 #include <mach/mx28.h>
 #include <mach/devices-common.h>
 
-#define mxs_mxs_mmc_data_entry_single(soc, _id, hwid)                   \
+#define mxs_mxs_mmc_data_entry_single(soc, _devid, _id, hwid)           \
         {                                                               \
+                .devid = _devid,                                        \
                 .id = _id,                                              \
                 .iobase = soc ## _SSP ## hwid ## _BASE_ADDR,            \
                 .dma = soc ## _DMA_SSP ## hwid,                         \
@@ -26,23 +27,23 @@
                 .irq_dma = soc ## _INT_SSP ## hwid ## _DMA,             \
         }
 
-#define mxs_mxs_mmc_data_entry(soc, _id, hwid)                          \
-        [_id] = mxs_mxs_mmc_data_entry_single(soc, _id, hwid)
+#define mxs_mxs_mmc_data_entry(soc, _devid, _id, hwid)                  \
+        [_id] = mxs_mxs_mmc_data_entry_single(soc, _devid, _id, hwid)
 
 
 #ifdef CONFIG_SOC_IMX23
 const struct mxs_mxs_mmc_data mx23_mxs_mmc_data[] __initconst = {
-        mxs_mxs_mmc_data_entry(MX23, 0, 1),
-        mxs_mxs_mmc_data_entry(MX23, 1, 2),
+        mxs_mxs_mmc_data_entry(MX23, "imx23-mmc", 0, 1),
+        mxs_mxs_mmc_data_entry(MX23, "imx23-mmc", 1, 2),
 };
 #endif
 
 #ifdef CONFIG_SOC_IMX28
 const struct mxs_mxs_mmc_data mx28_mxs_mmc_data[] __initconst = {
-        mxs_mxs_mmc_data_entry(MX28, 0, 0),
-        mxs_mxs_mmc_data_entry(MX28, 1, 1),
-        mxs_mxs_mmc_data_entry(MX28, 2, 2),
-        mxs_mxs_mmc_data_entry(MX28, 3, 3),
+        mxs_mxs_mmc_data_entry(MX28, "imx28-mmc", 0, 0),
+        mxs_mxs_mmc_data_entry(MX28, "imx28-mmc", 1, 1),
+        mxs_mxs_mmc_data_entry(MX28, "imx28-mmc", 2, 2),
+        mxs_mxs_mmc_data_entry(MX28, "imx28-mmc", 3, 3),
 };
 #endif
 
@@ -70,6 +71,6 @@ struct platform_device *__init mxs_add_mxs_mmc(
                 },
         };
 
-        return mxs_add_platform_device("mxs-mmc", data->id,
+        return mxs_add_platform_device(data->devid, data->id,
                         res, ARRAY_SIZE(res), pdata, sizeof(*pdata));
 }
diff --git a/arch/arm/mach-mxs/include/mach/devices-common.h b/arch/arm/mach-mxs/include/mach/devices-common.h
index f2e383955d88..2b37689c74ee 100644
--- a/arch/arm/mach-mxs/include/mach/devices-common.h
+++ b/arch/arm/mach-mxs/include/mach/devices-common.h
@@ -89,6 +89,7 @@ struct platform_device * __init mxs_add_mxs_i2c(
 /* mmc */
 #include <mach/mmc.h>
 struct mxs_mxs_mmc_data {
+        const char *devid;
         int id;
         resource_size_t iobase;
         resource_size_t dma;