mtd: mxc_nand: remove cpu_is_xxx by using platform_device_id

It changes the driver to use platform_device_id rather than cpu_is_xxx
to determine the controller type, and updates the platform code
accordingly.

As the result, mach/hardware.h inclusion gets removed from the driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: linux-mtd@lists.infradead.org

2 files changed, 12 insertions, 9 deletions

diff --git a/arch/arm/mach-imx/devices/devices-common.h b/arch/arm/mach-imx/devices/devices-common.h
index 86bf34cd4865..30a842ffc553 100644
--- a/arch/arm/mach-imx/devices/devices-common.h
+++ b/arch/arm/mach-imx/devices/devices-common.h
@@ -257,6 +257,7 @@ struct platform_device *__init imx_add_mxc_mmc(
 
 #include <linux/platform_data/mtd-mxc_nand.h>
 struct imx_mxc_nand_data {
+        const char *devid;
         /*
          * id is traditionally 0, but -1 is more appropriate.  We use -1 for new
          * machines but don't change existing devices as the nand device usually
diff --git a/arch/arm/mach-imx/devices/platform-mxc_nand.c b/arch/arm/mach-imx/devices/platform-mxc_nand.c
index 54b1d02cc27b..24aaad1a58c9 100644
--- a/arch/arm/mach-imx/devices/platform-mxc_nand.c
+++ b/arch/arm/mach-imx/devices/platform-mxc_nand.c
@@ -10,15 +10,17 @@
 #include <mach/hardware.h>
 #include "devices-common.h"
 
-#define imx_mxc_nand_data_entry_single(soc, _size)                      \
+#define imx_mxc_nand_data_entry_single(soc, _devid, _size)              \
         {                                                               \
+                .devid = _devid,                                        \
                 .iobase = soc ## _NFC_BASE_ADDR,                        \
                 .iosize = _size,                                        \
                 .irq = soc ## _INT_NFC                                  \
         }
 
-#define imx_mxc_nandv3_data_entry_single(soc, _size)                    \
+#define imx_mxc_nandv3_data_entry_single(soc, _devid, _size)            \
         {                                                               \
+                .devid = _devid,                                        \
                 .id = -1,                                               \
                 .iobase = soc ## _NFC_BASE_ADDR,                        \
                 .iosize = _size,                                        \
@@ -28,32 +30,32 @@
 
 #ifdef CONFIG_SOC_IMX21
 const struct imx_mxc_nand_data imx21_mxc_nand_data __initconst =
-        imx_mxc_nand_data_entry_single(MX21, SZ_4K);
+        imx_mxc_nand_data_entry_single(MX21, "imx21-nand", SZ_4K);
 #endif /* ifdef CONFIG_SOC_IMX21 */
 
 #ifdef CONFIG_SOC_IMX25
 const struct imx_mxc_nand_data imx25_mxc_nand_data __initconst =
-        imx_mxc_nand_data_entry_single(MX25, SZ_8K);
+        imx_mxc_nand_data_entry_single(MX25, "imx25-nand", SZ_8K);
 #endif /* ifdef CONFIG_SOC_IMX25 */
 
 #ifdef CONFIG_SOC_IMX27
 const struct imx_mxc_nand_data imx27_mxc_nand_data __initconst =
-        imx_mxc_nand_data_entry_single(MX27, SZ_4K);
+        imx_mxc_nand_data_entry_single(MX27, "imx27-nand", SZ_4K);
 #endif /* ifdef CONFIG_SOC_IMX27 */
 
 #ifdef CONFIG_SOC_IMX31
 const struct imx_mxc_nand_data imx31_mxc_nand_data __initconst =
-        imx_mxc_nand_data_entry_single(MX31, SZ_4K);
+        imx_mxc_nand_data_entry_single(MX31, "imx27-nand", SZ_4K);
 #endif
 
 #ifdef CONFIG_SOC_IMX35
 const struct imx_mxc_nand_data imx35_mxc_nand_data __initconst =
-        imx_mxc_nand_data_entry_single(MX35, SZ_8K);
+        imx_mxc_nand_data_entry_single(MX35, "imx25-nand", SZ_8K);
 #endif
 
 #ifdef CONFIG_SOC_IMX51
 const struct imx_mxc_nand_data imx51_mxc_nand_data __initconst =
-        imx_mxc_nandv3_data_entry_single(MX51, SZ_16K);
+        imx_mxc_nandv3_data_entry_single(MX51, "imx51-nand", SZ_16K);
 #endif
 
 struct platform_device *__init imx_add_mxc_nand(
@@ -76,7 +78,7 @@ struct platform_device *__init imx_add_mxc_nand(
                         .flags = IORESOURCE_MEM,
                 },
         };
-        return imx_add_platform_device("mxc_nand", data->id,
+        return imx_add_platform_device(data->devid, data->id,
                         res, ARRAY_SIZE(res) - !data->axibase,
                         pdata, sizeof(*pdata));
 }