i2c: imx: remove cpu_is_xxx by using platform_device_id

This is some amount of work left/forgot from device tree conversion.
Instead of checking cpu_is_xxx to determine the controller type, the
driver should use platform_device_id, which should match the device
tree compatible string.

The patch changes the driver to use platform_device_id rather than
cpu_is_xxx to determine the controller type/version.  It also updates
the platform code and device tree source 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: Wolfram Sang <w.sang@pengutronix.de>
Cc: linux-i2c@vger.kernel.org

Documentation/devicetree/bindings/i2c/fsl-imx-i2c.txt

@@ -12,13 +12,13 @@ Optional properties:
 Examples:
 
 i2c@83fc4000 { /* I2C2 on i.MX51 */
-	compatible = "fsl,imx51-i2c", "fsl,imx1-i2c";
+	compatible = "fsl,imx51-i2c", "fsl,imx21-i2c";
 	reg = <0x83fc4000 0x4000>;
 	interrupts = <63>;
 };
 
 i2c@70038000 { /* HS-I2C on i.MX51 */
-	compatible = "fsl,imx51-i2c", "fsl,imx1-i2c";
+	compatible = "fsl,imx51-i2c", "fsl,imx21-i2c";
 	reg = <0x70038000 0x4000>;
 	interrupts = <64>;
 	clock-frequency = <400000>;

arch/arm/boot/dts/imx27.dtsi

@@ -113,7 +113,7 @@ cspi2: cspi@1000f000 {
 			i2c1: i2c@10012000 {
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "fsl,imx27-i2c", "fsl,imx1-i2c";
+				compatible = "fsl,imx27-i2c", "fsl,imx21-i2c";
 				reg = <0x10012000 0x1000>;
 				interrupts = <12>;
 				status = "disabled";
@@ -205,7 +205,7 @@ uart6: serial@1001c000 {
 			i2c2: i2c@1001d000 {
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "fsl,imx27-i2c", "fsl,imx1-i2c";
+				compatible = "fsl,imx27-i2c", "fsl,imx21-i2c";
 				reg = <0x1001d000 0x1000>;
 				interrupts = <1>;
 				status = "disabled";

arch/arm/boot/dts/imx51.dtsi

@@ -377,7 +377,7 @@ cspi@83fc0000 {
 			i2c@83fc4000 { /* I2C2 */
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "fsl,imx51-i2c", "fsl,imx1-i2c";
+				compatible = "fsl,imx51-i2c", "fsl,imx21-i2c";
 				reg = <0x83fc4000 0x4000>;
 				interrupts = <63>;
 				status = "disabled";
@@ -386,7 +386,7 @@ i2c@83fc4000 { /* I2C2 */
 			i2c@83fc8000 { /* I2C1 */
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "fsl,imx51-i2c", "fsl,imx1-i2c";
+				compatible = "fsl,imx51-i2c", "fsl,imx21-i2c";
 				reg = <0x83fc8000 0x4000>;
 				interrupts = <62>;
 				status = "disabled";

arch/arm/boot/dts/imx53.dtsi

@@ -432,7 +432,7 @@ gpio7: gpio@53fe4000 {
 			i2c@53fec000 { /* I2C3 */
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "fsl,imx53-i2c", "fsl,imx1-i2c";
+				compatible = "fsl,imx53-i2c", "fsl,imx21-i2c";
 				reg = <0x53fec000 0x4000>;
 				interrupts = <64>;
 				status = "disabled";
@@ -488,7 +488,7 @@ cspi@63fc0000 {
 			i2c@63fc4000 { /* I2C2 */
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "fsl,imx53-i2c", "fsl,imx1-i2c";
+				compatible = "fsl,imx53-i2c", "fsl,imx21-i2c";
 				reg = <0x63fc4000 0x4000>;
 				interrupts = <63>;
 				status = "disabled";
@@ -497,7 +497,7 @@ i2c@63fc4000 { /* I2C2 */
 			i2c@63fc8000 { /* I2C1 */
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "fsl,imx53-i2c", "fsl,imx1-i2c";
+				compatible = "fsl,imx53-i2c", "fsl,imx21-i2c";
 				reg = <0x63fc8000 0x4000>;
 				interrupts = <62>;
 				status = "disabled";

arch/arm/boot/dts/imx6q.dtsi

@@ -882,7 +882,7 @@ usdhc@0219c000 { /* uSDHC4 */
 			i2c@021a0000 { /* I2C1 */
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "fsl,imx6q-i2c", "fsl,imx1-i2c";
+				compatible = "fsl,imx6q-i2c", "fsl,imx21-i2c";
 				reg = <0x021a0000 0x4000>;
 				interrupts = <0 36 0x04>;
 				clocks = <&clks 125>;
@@ -892,7 +892,7 @@ i2c@021a0000 { /* I2C1 */
 			i2c@021a4000 { /* I2C2 */
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "fsl,imx6q-i2c", "fsl,imx1-i2c";
+				compatible = "fsl,imx6q-i2c", "fsl,imx21-i2c";
 				reg = <0x021a4000 0x4000>;
 				interrupts = <0 37 0x04>;
 				clocks = <&clks 126>;
@@ -902,7 +902,7 @@ i2c@021a4000 { /* I2C2 */
 			i2c@021a8000 { /* I2C3 */
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "fsl,imx6q-i2c", "fsl,imx1-i2c";
+				compatible = "fsl,imx6q-i2c", "fsl,imx21-i2c";
 				reg = <0x021a8000 0x4000>;
 				interrupts = <0 38 0x04>;
 				clocks = <&clks 127>;

arch/arm/mach-imx/clk-imx1.c

@@ -95,7 +95,7 @@ int __init mx1_clocks_init(unsigned long fref)
 	clk_register_clkdev(clk[hclk], "ipg", "imx1-uart.1");
 	clk_register_clkdev(clk[per1], "per", "imx1-uart.2");
 	clk_register_clkdev(clk[hclk], "ipg", "imx1-uart.2");
-	clk_register_clkdev(clk[hclk], NULL, "imx-i2c.0");
+	clk_register_clkdev(clk[hclk], NULL, "imx1-i2c.0");
 	clk_register_clkdev(clk[per2], "per", "imx1-cspi.0");
 	clk_register_clkdev(clk[dummy], "ipg", "imx1-cspi.0");
 	clk_register_clkdev(clk[per2], "per", "imx1-cspi.1");

arch/arm/mach-imx/clk-imx21.c

@@ -166,7 +166,7 @@ int __init mx21_clocks_init(unsigned long lref, unsigned long href)
 	clk_register_clkdev(clk[dma_hclk_gate], "ahb", "imx-dma");
 	clk_register_clkdev(clk[dma_gate], "ipg", "imx-dma");
 	clk_register_clkdev(clk[wdog_gate], NULL, "imx2-wdt.0");
-	clk_register_clkdev(clk[i2c_gate], NULL, "imx-i2c.0");
+	clk_register_clkdev(clk[i2c_gate], NULL, "imx21-i2c.0");
 	clk_register_clkdev(clk[kpp_gate], NULL, "mxc-keypad");
 	clk_register_clkdev(clk[owire_gate], NULL, "mxc_w1.0");
 	clk_register_clkdev(clk[brom_gate], "brom", NULL);

arch/arm/mach-imx/clk-imx25.c

@@ -213,9 +213,9 @@ int __init mx25_clocks_init(void)
 	clk_register_clkdev(clk[per10], "per", "mxc_pwm.3");
 	clk_register_clkdev(clk[kpp_ipg], NULL, "imx-keypad");
 	clk_register_clkdev(clk[tsc_ipg], NULL, "mx25-adc");
-	clk_register_clkdev(clk[i2c_ipg_per], NULL, "imx-i2c.0");
-	clk_register_clkdev(clk[i2c_ipg_per], NULL, "imx-i2c.1");
-	clk_register_clkdev(clk[i2c_ipg_per], NULL, "imx-i2c.2");
+	clk_register_clkdev(clk[i2c_ipg_per], NULL, "imx21-i2c.0");
+	clk_register_clkdev(clk[i2c_ipg_per], NULL, "imx21-i2c.1");
+	clk_register_clkdev(clk[i2c_ipg_per], NULL, "imx21-i2c.2");
 	clk_register_clkdev(clk[fec_ipg], "ipg", "imx25-fec.0");
 	clk_register_clkdev(clk[fec_ahb], "ahb", "imx25-fec.0");
 	clk_register_clkdev(clk[dryice_ipg], NULL, "imxdi_rtc.0");

arch/arm/mach-imx/clk-imx27.c

@@ -247,8 +247,8 @@ int __init mx27_clocks_init(unsigned long fref)
 	clk_register_clkdev(clk[fec_ipg_gate], "ipg", "imx27-fec.0");
 	clk_register_clkdev(clk[fec_ahb_gate], "ahb", "imx27-fec.0");
 	clk_register_clkdev(clk[wdog_ipg_gate], NULL, "imx2-wdt.0");
-	clk_register_clkdev(clk[i2c1_ipg_gate], NULL, "imx-i2c.0");
-	clk_register_clkdev(clk[i2c2_ipg_gate], NULL, "imx-i2c.1");
+	clk_register_clkdev(clk[i2c1_ipg_gate], NULL, "imx21-i2c.0");
+	clk_register_clkdev(clk[i2c2_ipg_gate], NULL, "imx21-i2c.1");
 	clk_register_clkdev(clk[owire_ipg_gate], NULL, "mxc_w1.0");
 	clk_register_clkdev(clk[kpp_ipg_gate], NULL, "imx-keypad");
 	clk_register_clkdev(clk[emma_ahb_gate], "emma-ahb", "mx2-camera.0");

arch/arm/mach-imx/clk-imx31.c

@@ -155,9 +155,9 @@ int __init mx31_clocks_init(unsigned long fref)
 	clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.3");
 	clk_register_clkdev(clk[uart5_gate], "per", "imx21-uart.4");
 	clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.4");
-	clk_register_clkdev(clk[i2c1_gate], NULL, "imx-i2c.0");
-	clk_register_clkdev(clk[i2c2_gate], NULL, "imx-i2c.1");
-	clk_register_clkdev(clk[i2c3_gate], NULL, "imx-i2c.2");
+	clk_register_clkdev(clk[i2c1_gate], NULL, "imx21-i2c.0");
+	clk_register_clkdev(clk[i2c2_gate], NULL, "imx21-i2c.1");
+	clk_register_clkdev(clk[i2c3_gate], NULL, "imx21-i2c.2");
 	clk_register_clkdev(clk[owire_gate], NULL, "mxc_w1.0");
 	clk_register_clkdev(clk[sdhc1_gate], NULL, "mxc-mmc.0");
 	clk_register_clkdev(clk[sdhc2_gate], NULL, "mxc-mmc.1");

arch/arm/mach-imx/clk-imx35.c

@@ -226,9 +226,9 @@ int __init mx35_clocks_init()
 	clk_register_clkdev(clk[fec_gate], NULL, "imx27-fec.0");
 	clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0");
 	clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0");
-	clk_register_clkdev(clk[i2c1_gate], NULL, "imx-i2c.0");
-	clk_register_clkdev(clk[i2c2_gate], NULL, "imx-i2c.1");
-	clk_register_clkdev(clk[i2c3_gate], NULL, "imx-i2c.2");
+	clk_register_clkdev(clk[i2c1_gate], NULL, "imx21-i2c.0");
+	clk_register_clkdev(clk[i2c2_gate], NULL, "imx21-i2c.1");
+	clk_register_clkdev(clk[i2c3_gate], NULL, "imx21-i2c.2");
 	clk_register_clkdev(clk[ipu_gate], NULL, "ipu-core");
 	clk_register_clkdev(clk[ipu_gate], NULL, "mx3_sdc_fb");
 	clk_register_clkdev(clk[kpp_gate], NULL, "imx-keypad");

arch/arm/mach-imx/clk-imx51-imx53.c

@@ -258,8 +258,8 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
 	clk_register_clkdev(clk[cspi_ipg_gate], NULL, "imx35-cspi.2");
 	clk_register_clkdev(clk[pwm1_ipg_gate], "pwm", "mxc_pwm.0");
 	clk_register_clkdev(clk[pwm2_ipg_gate], "pwm", "mxc_pwm.1");
-	clk_register_clkdev(clk[i2c1_gate], NULL, "imx-i2c.0");
-	clk_register_clkdev(clk[i2c2_gate], NULL, "imx-i2c.1");
+	clk_register_clkdev(clk[i2c1_gate], NULL, "imx21-i2c.0");
+	clk_register_clkdev(clk[i2c2_gate], NULL, "imx21-i2c.1");
 	clk_register_clkdev(clk[usboh3_per_gate], "per", "mxc-ehci.0");
 	clk_register_clkdev(clk[usboh3_gate], "ipg", "mxc-ehci.0");
 	clk_register_clkdev(clk[usboh3_gate], "ahb", "mxc-ehci.0");
@@ -345,7 +345,7 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
 
 	mx5_clocks_common_init(rate_ckil, rate_osc, rate_ckih1, rate_ckih2);
 
-	clk_register_clkdev(clk[hsi2c_gate], NULL, "imx-i2c.2");
+	clk_register_clkdev(clk[hsi2c_gate], NULL, "imx21-i2c.2");
 	clk_register_clkdev(clk[mx51_mipi], "mipi_hsp", NULL);
 	clk_register_clkdev(clk[vpu_gate], NULL, "imx51-vpu.0");
 	clk_register_clkdev(clk[fec_gate], NULL, "imx27-fec.0");
@@ -440,7 +440,7 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
 	mx5_clocks_common_init(rate_ckil, rate_osc, rate_ckih1, rate_ckih2);
 
 	clk_register_clkdev(clk[vpu_gate], NULL, "imx53-vpu.0");
-	clk_register_clkdev(clk[i2c3_gate], NULL, "imx-i2c.2");
+	clk_register_clkdev(clk[i2c3_gate], NULL, "imx21-i2c.2");
 	clk_register_clkdev(clk[fec_gate], NULL, "imx25-fec.0");
 	clk_register_clkdev(clk[ipu_gate], "bus", "imx53-ipu");
 	clk_register_clkdev(clk[ipu_di0_gate], "di0", "imx53-ipu");

arch/arm/mach-imx/devices/devices-common.h

@@ -118,6 +118,7 @@ struct platform_device *__init imx_add_imx_fb(
 
 #include <linux/platform_data/i2c-imx.h>
 struct imx_imx_i2c_data {
+	const char *devid;
 	int id;
 	resource_size_t iobase;
 	resource_size_t iosize;

arch/arm/mach-imx/devices/platform-imx-i2c.c

@@ -9,31 +9,32 @@
 #include <mach/hardware.h>
 #include "devices-common.h"
 
-#define imx_imx_i2c_data_entry_single(soc, _id, _hwid, _size)		\
+#define imx_imx_i2c_data_entry_single(soc, _devid, _id, _hwid, _size)	\
 	{								\
+		.devid = _devid,					\
 		.id = _id,						\
 		.iobase = soc ## _I2C ## _hwid ## _BASE_ADDR,		\
 		.iosize = _size,					\
 		.irq = soc ## _INT_I2C ## _hwid,			\
 	}
 
-#define imx_imx_i2c_data_entry(soc, _id, _hwid, _size)			\
-	[_id] = imx_imx_i2c_data_entry_single(soc, _id, _hwid, _size)
+#define imx_imx_i2c_data_entry(soc, _devid, _id, _hwid, _size)		\
+	[_id] = imx_imx_i2c_data_entry_single(soc, _devid, _id, _hwid, _size)
 
 #ifdef CONFIG_SOC_IMX1
 const struct imx_imx_i2c_data imx1_imx_i2c_data __initconst =
-	imx_imx_i2c_data_entry_single(MX1, 0, , SZ_4K);
+	imx_imx_i2c_data_entry_single(MX1, "imx1-i2c", 0, , SZ_4K);
 #endif /* ifdef CONFIG_SOC_IMX1 */
 
 #ifdef CONFIG_SOC_IMX21
 const struct imx_imx_i2c_data imx21_imx_i2c_data __initconst =
-	imx_imx_i2c_data_entry_single(MX21, 0, , SZ_4K);
+	imx_imx_i2c_data_entry_single(MX21, "imx21-i2c", 0, , SZ_4K);
 #endif /* ifdef CONFIG_SOC_IMX21 */
 
 #ifdef CONFIG_SOC_IMX25
 const struct imx_imx_i2c_data imx25_imx_i2c_data[] __initconst = {
 #define imx25_imx_i2c_data_entry(_id, _hwid)				\
-	imx_imx_i2c_data_entry(MX25, _id, _hwid, SZ_16K)
+	imx_imx_i2c_data_entry(MX25, "imx21-i2c", _id, _hwid, SZ_16K)
 	imx25_imx_i2c_data_entry(0, 1),
 	imx25_imx_i2c_data_entry(1, 2),
 	imx25_imx_i2c_data_entry(2, 3),
@@ -43,7 +44,7 @@ const struct imx_imx_i2c_data imx25_imx_i2c_data[] __initconst = {
 #ifdef CONFIG_SOC_IMX27
 const struct imx_imx_i2c_data imx27_imx_i2c_data[] __initconst = {
 #define imx27_imx_i2c_data_entry(_id, _hwid)				\
-	imx_imx_i2c_data_entry(MX27, _id, _hwid, SZ_4K)
+	imx_imx_i2c_data_entry(MX27, "imx21-i2c", _id, _hwid, SZ_4K)
 	imx27_imx_i2c_data_entry(0, 1),
 	imx27_imx_i2c_data_entry(1, 2),
 };
@@ -52,7 +53,7 @@ const struct imx_imx_i2c_data imx27_imx_i2c_data[] __initconst = {
 #ifdef CONFIG_SOC_IMX31
 const struct imx_imx_i2c_data imx31_imx_i2c_data[] __initconst = {
 #define imx31_imx_i2c_data_entry(_id, _hwid)				\
-	imx_imx_i2c_data_entry(MX31, _id, _hwid, SZ_4K)
+	imx_imx_i2c_data_entry(MX31, "imx21-i2c", _id, _hwid, SZ_4K)
 	imx31_imx_i2c_data_entry(0, 1),
 	imx31_imx_i2c_data_entry(1, 2),
 	imx31_imx_i2c_data_entry(2, 3),
@@ -62,7 +63,7 @@ const struct imx_imx_i2c_data imx31_imx_i2c_data[] __initconst = {
 #ifdef CONFIG_SOC_IMX35
 const struct imx_imx_i2c_data imx35_imx_i2c_data[] __initconst = {
 #define imx35_imx_i2c_data_entry(_id, _hwid)				\
-	imx_imx_i2c_data_entry(MX35, _id, _hwid, SZ_4K)
+	imx_imx_i2c_data_entry(MX35, "imx21-i2c", _id, _hwid, SZ_4K)
 	imx35_imx_i2c_data_entry(0, 1),
 	imx35_imx_i2c_data_entry(1, 2),
 	imx35_imx_i2c_data_entry(2, 3),
@@ -72,7 +73,7 @@ const struct imx_imx_i2c_data imx35_imx_i2c_data[] __initconst = {
 #ifdef CONFIG_SOC_IMX50
 const struct imx_imx_i2c_data imx50_imx_i2c_data[] __initconst = {
 #define imx50_imx_i2c_data_entry(_id, _hwid)				\
-	imx_imx_i2c_data_entry(MX50, _id, _hwid, SZ_4K)
+	imx_imx_i2c_data_entry(MX50, "imx21-i2c", _id, _hwid, SZ_4K)
 	imx50_imx_i2c_data_entry(0, 1),
 	imx50_imx_i2c_data_entry(1, 2),
 	imx50_imx_i2c_data_entry(2, 3),
@@ -82,10 +83,11 @@ const struct imx_imx_i2c_data imx50_imx_i2c_data[] __initconst = {
 #ifdef CONFIG_SOC_IMX51
 const struct imx_imx_i2c_data imx51_imx_i2c_data[] __initconst = {
 #define imx51_imx_i2c_data_entry(_id, _hwid)				\
-	imx_imx_i2c_data_entry(MX51, _id, _hwid, SZ_4K)
+	imx_imx_i2c_data_entry(MX51, "imx21-i2c", _id, _hwid, SZ_4K)
 	imx51_imx_i2c_data_entry(0, 1),
 	imx51_imx_i2c_data_entry(1, 2),
 	{
+		.devid = "imx21-i2c",
 		.id = 2,
 		.iobase = MX51_HSI2C_DMA_BASE_ADDR,
 		.iosize = SZ_16K,
@@ -97,7 +99,7 @@ const struct imx_imx_i2c_data imx51_imx_i2c_data[] __initconst = {
 #ifdef CONFIG_SOC_IMX53
 const struct imx_imx_i2c_data imx53_imx_i2c_data[] __initconst = {
 #define imx53_imx_i2c_data_entry(_id, _hwid)				\
-	imx_imx_i2c_data_entry(MX53, _id, _hwid, SZ_4K)
+	imx_imx_i2c_data_entry(MX53, "imx21-i2c", _id, _hwid, SZ_4K)
 	imx53_imx_i2c_data_entry(0, 1),
 	imx53_imx_i2c_data_entry(1, 2),
 	imx53_imx_i2c_data_entry(2, 3),
@@ -120,7 +122,7 @@ struct platform_device *__init imx_add_imx_i2c(
 		},
 	};
 
-	return imx_add_platform_device("imx-i2c", data->id,
+	return imx_add_platform_device(data->devid, data->id,
 			res, ARRAY_SIZE(res),
 			pdata, sizeof(*pdata));
 }

arch/arm/mach-imx/imx27-dt.c

@@ -23,8 +23,8 @@ static const struct of_dev_auxdata imx27_auxdata_lookup[] __initconst = {
 	OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART2_BASE_ADDR, "imx21-uart.1", NULL),
 	OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART3_BASE_ADDR, "imx21-uart.2", NULL),
 	OF_DEV_AUXDATA("fsl,imx27-fec", MX27_FEC_BASE_ADDR, "imx27-fec.0", NULL),
-	OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C1_BASE_ADDR, "imx-i2c.0", NULL),
-	OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C2_BASE_ADDR, "imx-i2c.1", NULL),
+	OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C1_BASE_ADDR, "imx21-i2c.0", NULL),
+	OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C2_BASE_ADDR, "imx21-i2c.1", NULL),
 	OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI1_BASE_ADDR, "imx27-cspi.0", NULL),
 	OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI2_BASE_ADDR, "imx27-cspi.1", NULL),
 	OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI3_BASE_ADDR, "imx27-cspi.2", NULL),

arch/arm/mach-imx/imx51-dt.c

@@ -37,8 +37,8 @@ static const struct of_dev_auxdata imx51_auxdata_lookup[] __initconst = {
 	OF_DEV_AUXDATA("fsl,imx51-ecspi", MX51_ECSPI1_BASE_ADDR, "imx51-ecspi.0", NULL),
 	OF_DEV_AUXDATA("fsl,imx51-ecspi", MX51_ECSPI2_BASE_ADDR, "imx51-ecspi.1", NULL),
 	OF_DEV_AUXDATA("fsl,imx51-cspi", MX51_CSPI_BASE_ADDR, "imx35-cspi.0", NULL),
-	OF_DEV_AUXDATA("fsl,imx51-i2c", MX51_I2C1_BASE_ADDR, "imx-i2c.0", NULL),
-	OF_DEV_AUXDATA("fsl,imx51-i2c", MX51_I2C2_BASE_ADDR, "imx-i2c.1", NULL),
+	OF_DEV_AUXDATA("fsl,imx51-i2c", MX51_I2C1_BASE_ADDR, "imx21-i2c.0", NULL),
+	OF_DEV_AUXDATA("fsl,imx51-i2c", MX51_I2C2_BASE_ADDR, "imx21-i2c.1", NULL),
 	OF_DEV_AUXDATA("fsl,imx51-sdma", MX51_SDMA_BASE_ADDR, "imx35-sdma", NULL),
 	OF_DEV_AUXDATA("fsl,imx51-wdt", MX51_WDOG1_BASE_ADDR, "imx2-wdt.0", NULL),
 	{ /* sentinel */ }

arch/arm/mach-imx/mach-imx53.c

@@ -43,9 +43,9 @@ static const struct of_dev_auxdata imx53_auxdata_lookup[] __initconst = {
 	OF_DEV_AUXDATA("fsl,imx53-ecspi", MX53_ECSPI1_BASE_ADDR, "imx51-ecspi.0", NULL),
 	OF_DEV_AUXDATA("fsl,imx53-ecspi", MX53_ECSPI2_BASE_ADDR, "imx51-ecspi.1", NULL),
 	OF_DEV_AUXDATA("fsl,imx53-cspi", MX53_CSPI_BASE_ADDR, "imx35-cspi.0", NULL),
-	OF_DEV_AUXDATA("fsl,imx53-i2c", MX53_I2C1_BASE_ADDR, "imx-i2c.0", NULL),
-	OF_DEV_AUXDATA("fsl,imx53-i2c", MX53_I2C2_BASE_ADDR, "imx-i2c.1", NULL),
-	OF_DEV_AUXDATA("fsl,imx53-i2c", MX53_I2C3_BASE_ADDR, "imx-i2c.2", NULL),
+	OF_DEV_AUXDATA("fsl,imx53-i2c", MX53_I2C1_BASE_ADDR, "imx21-i2c.0", NULL),
+	OF_DEV_AUXDATA("fsl,imx53-i2c", MX53_I2C2_BASE_ADDR, "imx21-i2c.1", NULL),
+	OF_DEV_AUXDATA("fsl,imx53-i2c", MX53_I2C3_BASE_ADDR, "imx21-i2c.2", NULL),
 	OF_DEV_AUXDATA("fsl,imx53-sdma", MX53_SDMA_BASE_ADDR, "imx35-sdma", NULL),
 	OF_DEV_AUXDATA("fsl,imx53-wdt", MX53_WDOG1_BASE_ADDR, "imx2-wdt.0", NULL),
 	{ /* sentinel */ }

drivers/i2c/busses/i2c-imx.c

@@ -52,8 +52,6 @@
 #include <linux/of_device.h>
 #include <linux/of_i2c.h>
 #include <linux/pinctrl/consumer.h>
-
-#include <mach/hardware.h>
 #include <linux/platform_data/i2c-imx.h>
 
 /** Defines ********************************************************************
@@ -115,6 +113,11 @@ static u16 __initdata i2c_clk_div[50][2] = {
 	{ 3072,	0x1E }, { 3840,	0x1F }
 };
 
+enum imx_i2c_type {
+	IMX1_I2C,
+	IMX21_I2C,
+};
+
 struct imx_i2c_struct {
 	struct i2c_adapter	adapter;
 	struct clk		*clk;
@@ -124,13 +127,33 @@ struct imx_i2c_struct {
 	unsigned int 		disable_delay;
 	int			stopped;
 	unsigned int		ifdr; /* IMX_I2C_IFDR */
+	enum imx_i2c_type	devtype;
+};
+
+static struct platform_device_id imx_i2c_devtype[] = {
+	{
+		.name = "imx1-i2c",
+		.driver_data = IMX1_I2C,
+	}, {
+		.name = "imx21-i2c",
+		.driver_data = IMX21_I2C,
+	}, {
+		/* sentinel */
+	}
 };
+MODULE_DEVICE_TABLE(platform, imx_i2c_devtype);
 
 static const struct of_device_id i2c_imx_dt_ids[] = {
-	{ .compatible = "fsl,imx1-i2c", },
+	{ .compatible = "fsl,imx1-i2c", .data = &imx_i2c_devtype[IMX1_I2C], },
+	{ .compatible = "fsl,imx21-i2c", .data = &imx_i2c_devtype[IMX21_I2C], },
 	{ /* sentinel */ }
 };
 
+static inline int is_imx1_i2c(struct imx_i2c_struct *i2c_imx)
+{
+	return i2c_imx->devtype == IMX1_I2C;
+}
+
 /** Functions for IMX I2C adapter driver ***************************************
 *******************************************************************************/
 
@@ -223,7 +246,7 @@ static void i2c_imx_stop(struct imx_i2c_struct *i2c_imx)
 		temp &= ~(I2CR_MSTA | I2CR_MTX);
 		writeb(temp, i2c_imx->base + IMX_I2C_I2CR);
 	}
-	if (cpu_is_mx1()) {
+	if (is_imx1_i2c(i2c_imx)) {
 		/*
 		 * This delay caused by an i.MXL hardware bug.
 		 * If no (or too short) delay, no "STOP" bit will be generated.
@@ -465,6 +488,8 @@ static struct i2c_algorithm i2c_imx_algo = {
 
 static int __init i2c_imx_probe(struct platform_device *pdev)
 {
+	const struct of_device_id *of_id = of_match_device(i2c_imx_dt_ids,
+							   &pdev->dev);
 	struct imx_i2c_struct *i2c_imx;
 	struct resource *res;
 	struct imxi2c_platform_data *pdata = pdev->dev.platform_data;
@@ -497,6 +522,10 @@ static int __init i2c_imx_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	if (of_id)
+		pdev->id_entry = of_id->data;
+	i2c_imx->devtype = pdev->id_entry->driver_data;
+
 	/* Setup i2c_imx driver structure */
 	strlcpy(i2c_imx->adapter.name, pdev->name, sizeof(i2c_imx->adapter.name));
 	i2c_imx->adapter.owner		= THIS_MODULE;
@@ -593,7 +622,8 @@ static struct platform_driver i2c_imx_driver = {
 		.name	= DRIVER_NAME,
 		.owner	= THIS_MODULE,
 		.of_match_table = i2c_imx_dt_ids,
-	}
+	},
+	.id_table	= imx_i2c_devtype,
 };
 
 static int __init i2c_adap_imx_init(void)