[ARM] pxa: add PWM devices support for pxa168/910

Signed-off-by: Mingwei Wang <mingwei.wang@marvell.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>

arch/arm/mach-mmp/include/mach/mfp-pxa168.h

@@ -264,4 +264,27 @@
 #define GPIO116_I2S_RXD		MFP_CFG(GPIO116,AF2)
 #define GPIO117_I2S_TXD		MFP_CFG(GPIO117,AF2)
 
+/* PWM */
+#define GPIO96_PWM3_OUT		MFP_CFG(GPIO96, AF1)
+#define GPIO97_PWM2_OUT		MFP_CFG(GPIO97, AF1)
+#define GPIO98_PWM1_OUT		MFP_CFG(GPIO98, AF1)
+#define GPIO104_PWM4_OUT	MFP_CFG(GPIO104, AF1)
+#define GPIO106_PWM2_OUT	MFP_CFG(GPIO106, AF2)
+#define GPIO74_PWM4_OUT		MFP_CFG(GPIO74, AF2)
+#define GPIO75_PWM3_OUT		MFP_CFG(GPIO75, AF2)
+#define GPIO76_PWM2_OUT		MFP_CFG(GPIO76, AF2)
+#define GPIO77_PWM1_OUT		MFP_CFG(GPIO77, AF2)
+#define GPIO82_PWM4_OUT		MFP_CFG(GPIO82, AF2)
+#define GPIO83_PWM3_OUT		MFP_CFG(GPIO83, AF2)
+#define GPIO84_PWM2_OUT		MFP_CFG(GPIO84, AF2)
+#define GPIO85_PWM1_OUT		MFP_CFG(GPIO85, AF2)
+#define GPIO84_PWM1_OUT		MFP_CFG(GPIO84, AF4)
+#define GPIO122_PWM3_OUT	MFP_CFG(GPIO122, AF3)
+#define GPIO123_PWM1_OUT	MFP_CFG(GPIO123, AF1)
+#define GPIO124_PWM2_OUT	MFP_CFG(GPIO124, AF1)
+#define GPIO125_PWM3_OUT	MFP_CFG(GPIO125, AF1)
+#define GPIO126_PWM4_OUT	MFP_CFG(GPIO126, AF1)
+#define GPIO86_PWM1_OUT		MFP_CFG(GPIO86, AF2)
+#define GPIO86_PWM2_OUT		MFP_CFG(GPIO86, AF3)
+
 #endif /* __ASM_MACH_MFP_PXA168_H */

arch/arm/mach-mmp/include/mach/mfp-pxa910.h

@@ -159,4 +159,12 @@
 #define MMC1_CD_MMC1_CD		MFP_CFG_DRV(MMC1_CD, AF0, MEDIUM)
 #define MMC1_WP_MMC1_WP		MFP_CFG_DRV(MMC1_WP, AF0, MEDIUM)
 
+/* PWM */
+#define GPIO27 PWM3 AF2		MFP_CFG(GPIO27, AF2)
+#define GPIO51_PWM2_OUT		MFP_CFG(GPIO51, AF2)
+#define GPIO117_PWM1_OUT	MFP_CFG(GPIO117, AF2)
+#define GPIO118_PWM2_OUT	MFP_CFG(GPIO118, AF2)
+#define GPIO119_PWM3_OUT	MFP_CFG(GPIO119, AF2)
+#define GPIO120_PWM4_OUT	MFP_CFG(GPIO120, AF2)
+
 #endif /* __ASM_MACH MFP_PXA910_H */

arch/arm/mach-mmp/include/mach/pxa168.h

@@ -9,6 +9,10 @@ extern struct pxa_device_desc pxa168_device_uart1;
 extern struct pxa_device_desc pxa168_device_uart2;
 extern struct pxa_device_desc pxa168_device_twsi0;
 extern struct pxa_device_desc pxa168_device_twsi1;
+extern struct pxa_device_desc pxa168_device_pwm1;
+extern struct pxa_device_desc pxa168_device_pwm2;
+extern struct pxa_device_desc pxa168_device_pwm3;
+extern struct pxa_device_desc pxa168_device_pwm4;
 
 static inline int pxa168_add_uart(int id)
 {
@@ -44,4 +48,20 @@ static inline int pxa168_add_twsi(int id, struct i2c_pxa_platform_data *data,
 
 	return pxa_register_device(d, data, sizeof(*data));
 }
+
+static inline int pxa168_add_pwm(int id)
+{
+	struct pxa_device_desc *d = NULL;
+
+	switch (id) {
+	case 1: d = &pxa168_device_pwm1; break;
+	case 2: d = &pxa168_device_pwm2; break;
+	case 3: d = &pxa168_device_pwm3; break;
+	case 4: d = &pxa168_device_pwm4; break;
+	default:
+		return -EINVAL;
+	}
+
+	return pxa_register_device(d, NULL, 0);
+}
 #endif /* __ASM_MACH_PXA168_H */

arch/arm/mach-mmp/include/mach/pxa910.h

@@ -9,6 +9,10 @@ extern struct pxa_device_desc pxa910_device_uart1;
 extern struct pxa_device_desc pxa910_device_uart2;
 extern struct pxa_device_desc pxa910_device_twsi0;
 extern struct pxa_device_desc pxa910_device_twsi1;
+extern struct pxa_device_desc pxa910_device_pwm1;
+extern struct pxa_device_desc pxa910_device_pwm2;
+extern struct pxa_device_desc pxa910_device_pwm3;
+extern struct pxa_device_desc pxa910_device_pwm4;
 
 static inline int pxa910_add_uart(int id)
 {
@@ -44,4 +48,20 @@ static inline int pxa910_add_twsi(int id, struct i2c_pxa_platform_data *data,
 
 	return pxa_register_device(d, data, sizeof(*data));
 }
+
+static inline int pxa910_add_pwm(int id)
+{
+	struct pxa_device_desc *d = NULL;
+
+	switch (id) {
+	case 1: d = &pxa910_device_pwm1; break;
+	case 2: d = &pxa910_device_pwm2; break;
+	case 3: d = &pxa910_device_pwm3; break;
+	case 4: d = &pxa910_device_pwm4; break;
+	default:
+		return -EINVAL;
+	}
+
+	return pxa_register_device(d, NULL, 0);
+}
 #endif /* __ASM_MACH_PXA910_H */

arch/arm/mach-mmp/include/mach/regs-apbc.h

@@ -22,8 +22,10 @@
 #define APBC_PXA168_UART1	APBC_REG(0x000)
 #define APBC_PXA168_UART2	APBC_REG(0x004)
 #define APBC_PXA168_GPIO	APBC_REG(0x008)
-#define APBC_PXA168_PWM0	APBC_REG(0x00c)
-#define APBC_PXA168_PWM1	APBC_REG(0x010)
+#define APBC_PXA168_PWM1	APBC_REG(0x00c)
+#define APBC_PXA168_PWM2	APBC_REG(0x010)
+#define APBC_PXA168_PWM3	APBC_REG(0x014)
+#define APBC_PXA168_PWM4	APBC_REG(0x018)
 #define APBC_PXA168_SSP1	APBC_REG(0x01c)
 #define APBC_PXA168_SSP2	APBC_REG(0x020)
 #define APBC_PXA168_RTC		APBC_REG(0x028)
@@ -48,10 +50,10 @@
 #define APBC_PXA910_UART0	APBC_REG(0x000)
 #define APBC_PXA910_UART1	APBC_REG(0x004)
 #define APBC_PXA910_GPIO	APBC_REG(0x008)
-#define APBC_PXA910_PWM0	APBC_REG(0x00c)
-#define APBC_PXA910_PWM1	APBC_REG(0x010)
-#define APBC_PXA910_PWM2	APBC_REG(0x014)
-#define APBC_PXA910_PWM3	APBC_REG(0x018)
+#define APBC_PXA910_PWM1	APBC_REG(0x00c)
+#define APBC_PXA910_PWM2	APBC_REG(0x010)
+#define APBC_PXA910_PWM3	APBC_REG(0x014)
+#define APBC_PXA910_PWM4	APBC_REG(0x018)
 #define APBC_PXA910_SSP1	APBC_REG(0x01c)
 #define APBC_PXA910_SSP2	APBC_REG(0x020)
 #define APBC_PXA910_IPC		APBC_REG(0x024)

arch/arm/mach-mmp/pxa168.c

@@ -67,6 +67,10 @@ static APBC_CLK(uart1, PXA168_UART1, 1, 14745600);
 static APBC_CLK(uart2, PXA168_UART2, 1, 14745600);
 static APBC_CLK(twsi0, PXA168_TWSI0, 1, 33000000);
 static APBC_CLK(twsi1, PXA168_TWSI1, 1, 33000000);
+static APBC_CLK(pwm1, PXA168_PWM1, 1, 13000000);
+static APBC_CLK(pwm2, PXA168_PWM2, 1, 13000000);
+static APBC_CLK(pwm3, PXA168_PWM3, 1, 13000000);
+static APBC_CLK(pwm4, PXA168_PWM4, 1, 13000000);
 
 /* device and clock bindings */
 static struct clk_lookup pxa168_clkregs[] = {
@@ -74,6 +78,10 @@ static struct clk_lookup pxa168_clkregs[] = {
 	INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
 	INIT_CLKREG(&clk_twsi0, "pxa2xx-i2c.0", NULL),
 	INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.1", NULL),
+	INIT_CLKREG(&clk_pwm1, "pxa168-pwm.0", NULL),
+	INIT_CLKREG(&clk_pwm2, "pxa168-pwm.1", NULL),
+	INIT_CLKREG(&clk_pwm3, "pxa168-pwm.2", NULL),
+	INIT_CLKREG(&clk_pwm4, "pxa168-pwm.3", NULL),
 };
 
 static int __init pxa168_init(void)
@@ -115,3 +123,7 @@ PXA168_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4017000, 0x30, 21, 22);
 PXA168_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4018000, 0x30, 23, 24);
 PXA168_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28);
 PXA168_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28);
+PXA168_DEVICE(pwm1, "pxa168-pwm", 0, NONE, 0xd401a000, 0x10);
+PXA168_DEVICE(pwm2, "pxa168-pwm", 1, NONE, 0xd401a400, 0x10);
+PXA168_DEVICE(pwm3, "pxa168-pwm", 2, NONE, 0xd401a800, 0x10);
+PXA168_DEVICE(pwm4, "pxa168-pwm", 3, NONE, 0xd401ac00, 0x10);

arch/arm/mach-mmp/pxa910.c

@@ -105,6 +105,10 @@ static APBC_CLK(uart1, PXA910_UART0, 1, 14745600);
 static APBC_CLK(uart2, PXA910_UART1, 1, 14745600);
 static APBC_CLK(twsi0, PXA168_TWSI0, 1, 33000000);
 static APBC_CLK(twsi1, PXA168_TWSI1, 1, 33000000);
+static APBC_CLK(pwm1, PXA910_PWM1, 1, 13000000);
+static APBC_CLK(pwm2, PXA910_PWM2, 1, 13000000);
+static APBC_CLK(pwm3, PXA910_PWM3, 1, 13000000);
+static APBC_CLK(pwm4, PXA910_PWM4, 1, 13000000);
 
 /* device and clock bindings */
 static struct clk_lookup pxa910_clkregs[] = {
@@ -112,6 +116,10 @@ static struct clk_lookup pxa910_clkregs[] = {
 	INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
 	INIT_CLKREG(&clk_twsi0, "pxa2xx-i2c.0", NULL),
 	INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.1", NULL),
+	INIT_CLKREG(&clk_pwm1, "pxa910-pwm.0", NULL),
+	INIT_CLKREG(&clk_pwm2, "pxa910-pwm.1", NULL),
+	INIT_CLKREG(&clk_pwm3, "pxa910-pwm.2", NULL),
+	INIT_CLKREG(&clk_pwm4, "pxa910-pwm.3", NULL),
 };
 
 static int __init pxa910_init(void)
@@ -162,3 +170,7 @@ PXA910_DEVICE(uart1, "pxa2xx-uart", 0, UART2, 0xd4017000, 0x30, 21, 22);
 PXA910_DEVICE(uart2, "pxa2xx-uart", 1, UART3, 0xd4018000, 0x30, 23, 24);
 PXA910_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28);
 PXA910_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28);
+PXA910_DEVICE(pwm1, "pxa910-pwm", 0, NONE, 0xd401a000, 0x10);
+PXA910_DEVICE(pwm2, "pxa910-pwm", 1, NONE, 0xd401a400, 0x10);
+PXA910_DEVICE(pwm3, "pxa910-pwm", 2, NONE, 0xd401a800, 0x10);
+PXA910_DEVICE(pwm4, "pxa910-pwm", 3, NONE, 0xd401ac00, 0x10);

arch/arm/plat-pxa/pwm.c

@@ -28,6 +28,8 @@ static const struct platform_device_id pwm_id_table[] = {
 	/*   PWM    has_secondary_pwm? */
 	{ "pxa25x-pwm", 0 },
 	{ "pxa27x-pwm", 0 | HAS_SECONDARY_PWM },
+	{ "pxa168-pwm", 1 },
+	{ "pxa910-pwm", 1 },
 	{ },
 };
 MODULE_DEVICE_TABLE(platform, pwm_id_table);