[ARM] pxa: Add PXA support for PWM API

Patch mainly from Eric Miao, with minor edits by rmk.

Note: PWM0 and PWM2 share the same register I/O space and clock gating
on pxa{27x, 3xx}, thus PWM2 is treated in the driver as a child PWM of
PWM0. And this is also true for PWM1/3.

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 60 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index d6c05b6eab35..794a1076db73 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -280,6 +280,36 @@ struct platform_device pxa_device_rtc = {
 
 #ifdef CONFIG_PXA25x
 
+static struct resource pxa25x_resource_pwm0[] = {
+        [0] = {
+                .start  = 0x40b00000,
+                .end    = 0x40b0000f,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+struct platform_device pxa25x_device_pwm0 = {
+        .name           = "pxa25x-pwm",
+        .id             = 0,
+        .resource       = pxa25x_resource_pwm0,
+        .num_resources  = ARRAY_SIZE(pxa25x_resource_pwm0),
+};
+
+static struct resource pxa25x_resource_pwm1[] = {
+        [0] = {
+                .start  = 0x40c00000,
+                .end    = 0x40c0000f,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+struct platform_device pxa25x_device_pwm1 = {
+        .name           = "pxa25x-pwm",
+        .id             = 1,
+        .resource       = pxa25x_resource_pwm1,
+        .num_resources  = ARRAY_SIZE(pxa25x_resource_pwm1),
+};
+
 static u64 pxa25x_ssp_dma_mask = DMA_BIT_MASK(32);
 
 static struct resource pxa25x_resource_ssp[] = {
@@ -568,6 +598,36 @@ struct platform_device pxa27x_device_ssp3 = {
         .num_resources  = ARRAY_SIZE(pxa27x_resource_ssp3),
 };
 
+static struct resource pxa27x_resource_pwm0[] = {
+        [0] = {
+                .start  = 0x40b00000,
+                .end    = 0x40b0001f,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+struct platform_device pxa27x_device_pwm0 = {
+        .name           = "pxa27x-pwm",
+        .id             = 0,
+        .resource       = pxa27x_resource_pwm0,
+        .num_resources  = ARRAY_SIZE(pxa27x_resource_pwm0),
+};
+
+static struct resource pxa27x_resource_pwm1[] = {
+        [0] = {
+                .start  = 0x40c00000,
+                .end    = 0x40c0001f,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+struct platform_device pxa27x_device_pwm1 = {
+        .name           = "pxa27x-pwm",
+        .id             = 1,
+        .resource       = pxa27x_resource_pwm1,
+        .num_resources  = ARRAY_SIZE(pxa27x_resource_pwm1),
+};
+
 static struct resource pxa27x_resource_camera[] = {
         [0] = {
                 .start  = 0x50000000,