[PATCH 3/5] mx51: Add mx51 processor to the pwm driver

[Fabio Estevam]

Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>
---
 arch/arm/plat-mxc/pwm.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/arm/plat-mxc/pwm.c b/arch/arm/plat-mxc/pwm.c
index c36f263..c6cdced 100644
--- a/arch/arm/plat-mxc/pwm.c
+++ b/arch/arm/plat-mxc/pwm.c
@@ -26,7 +26,7 @@
 #define MX1_PWMP    0x08   /* PWM Period Register */
 
 
-/* i.MX27, i.MX31, i.MX35 share the same PWM function block: */
+/* i.MX25/27/31/35/51 share the same PWM function block: */
 
 #define MX3_PWMCR                 0x00    /* PWM Control Register */
 #define MX3_PWMSAR                0x0C    /* PWM Sample Register */
@@ -57,7 +57,7 @@ int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
     if (pwm == NULL || period_ns == 0 || duty_ns > period_ns)
         return -EINVAL;
 
-    if (cpu_is_mx27() || cpu_is_mx3() || cpu_is_mx25()) {
+    if (cpu_is_mx27() || cpu_is_mx3() || cpu_is_mx25() || cpu_is_mx51()) {
         unsigned long long c;
         unsigned long period_cycles, duty_cycles, prescale;
         u32 cr;
@@ -79,7 +79,7 @@ int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
 
         cr = MX3_PWMCR_PRESCALER(prescale) | MX3_PWMCR_EN;
 
-        if (cpu_is_mx25())
+        if (cpu_is_mx25() || cpu_is_mx51())
             cr |= MX3_PWMCR_CLKSRC_IPG;
         else
             cr |= MX3_PWMCR_CLKSRC_IPG_HIGH;
@@ -198,6 +198,7 @@ static int __devinit mxc_pwm_probe(struct platform_device *pdev)
 
     if (IS_ERR(pwm->clk)) {
         ret = PTR_ERR(pwm->clk);
+        dev_err(&pdev->dev, "can't get PWM clock\n");
         goto err_free;
     }
 
@@ -233,6 +234,7 @@ static int __devinit mxc_pwm_probe(struct platform_device *pdev)
     mutex_unlock(&pwm_lock);
 
     platform_set_drvdata(pdev, pwm);
+    dev_info(&pdev->dev, "i.MX PWM Driver Enabled\n");
     return 0;
 
 err_free_mem:
-- 
1.6.0.4