[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>
diff --git a/arch/arm/plat-pxa/pwm.c b/arch/arm/plat-pxa/pwm.c
index 5513c51..a9eabdc 100644
--- a/arch/arm/plat-pxa/pwm.c
+++ b/arch/arm/plat-pxa/pwm.c
@@ -28,6 +28,8 @@
 	/*   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);