[ARM] pxa: allow PWM ID base number to be specified in pwm_id_table

PWMs on PXA168/910 start at number 1 instead of 0, (i.e. PWM1/2/3/4 instead
of PWM0/1/2/3 on PXA25x/PXA27x/PXA3xx). Allow this number to be specified
in pwm_id_table.

Signed-off-by: Eric Miao <eric.miao@marvell.com>

diff --git a/arch/arm/mach-pxa/pwm.c b/arch/arm/mach-pxa/pwm.c
index dec6f2c..5513c51 100644 (file)
--- a/arch/arm/mach-pxa/pwm.c
+++ b/arch/arm/mach-pxa/pwm.c
@@ -22,11 +22,12 @@
 #include <asm/div64.h>
 
 #define HAS_SECONDARY_PWM      0x10
+#define PWM_ID_BASE(d)         ((d) & 0xf)
 
 static const struct platform_device_id pwm_id_table[] = {
        /*   PWM    has_secondary_pwm? */
        { "pxa25x-pwm", 0 },
-       { "pxa27x-pwm", HAS_SECONDARY_PWM },
+       { "pxa27x-pwm", 0 | HAS_SECONDARY_PWM },
        { },
 };
 MODULE_DEVICE_TABLE(platform, pwm_id_table);
@@ -191,7 +192,7 @@ static int __devinit pwm_probe(struct platform_device *pdev)
        pwm->clk_enabled = 0;
 
        pwm->use_count = 0;
-       pwm->pwm_id = pdev->id;
+       pwm->pwm_id = PWM_ID_BASE(id->driver_data) + pdev->id;
        pwm->pdev = pdev;
 
        r = platform_get_resource(pdev, IORESOURCE_MEM, 0);