[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, 4 insertions, 1 deletions

diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 7e945836e129..bc2e80f69673 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -157,12 +157,13 @@ static struct clk pxa27x_clks[] = {
         INIT_CKEN("SSPCLK", SSP1, 13000000, 0, &pxa27x_device_ssp1.dev),
         INIT_CKEN("SSPCLK", SSP2, 13000000, 0, &pxa27x_device_ssp2.dev),
         INIT_CKEN("SSPCLK", SSP3, 13000000, 0, &pxa27x_device_ssp3.dev),
+        INIT_CKEN("PWMCLK", PWM0, 13000000, 0, &pxa27x_device_pwm0.dev),
+        INIT_CKEN("PWMCLK", PWM1, 13000000, 0, &pxa27x_device_pwm1.dev),
 
         INIT_CKEN("AC97CLK",     AC97,     24576000, 0, NULL),
         INIT_CKEN("AC97CONFCLK", AC97CONF, 24576000, 0, NULL),
 
         /*
-        INIT_CKEN("PWMCLK",  PWM0, 13000000, 0, NULL),
         INIT_CKEN("MSLCLK",  MSL,  48000000, 0, NULL),
         INIT_CKEN("USIMCLK", USIM, 48000000, 0, NULL),
         INIT_CKEN("MSTKCLK", MEMSTK, 19500000, 0, NULL),
@@ -363,6 +364,8 @@ static struct platform_device *devices[] __initdata = {
         &pxa27x_device_ssp1,
         &pxa27x_device_ssp2,
         &pxa27x_device_ssp3,
+        &pxa27x_device_pwm0,
+        &pxa27x_device_pwm1,
 };
 
 static struct sys_device pxa27x_sysdev[] = {