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Diffstat (limited to 'target/linux/mx2/patches-2.6.34/040-pwm.patch')
-rw-r--r--target/linux/mx2/patches-2.6.34/040-pwm.patch48
1 files changed, 24 insertions, 24 deletions
diff --git a/target/linux/mx2/patches-2.6.34/040-pwm.patch b/target/linux/mx2/patches-2.6.34/040-pwm.patch
index 55e846e..af47ad1 100644
--- a/target/linux/mx2/patches-2.6.34/040-pwm.patch
+++ b/target/linux/mx2/patches-2.6.34/040-pwm.patch
@@ -1,5 +1,3 @@
-diff --git a/arch/arm/plat-mxc/pwm.c b/arch/arm/plat-mxc/pwm.c
-index c36f263..acc5dc1 100644
--- a/arch/arm/plat-mxc/pwm.c
+++ b/arch/arm/plat-mxc/pwm.c
@@ -25,6 +25,11 @@
@@ -14,7 +12,7 @@ index c36f263..acc5dc1 100644
/* i.MX27, i.MX31, i.MX35 share the same PWM function block: */
-@@ -54,25 +59,32 @@ struct pwm_device {
+@@ -54,26 +59,33 @@ struct pwm_device {
int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
{
@@ -24,43 +22,45 @@ index c36f263..acc5dc1 100644
if (pwm == NULL || period_ns == 0 || duty_ns > period_ns)
return -EINVAL;
-- if (cpu_is_mx27() || cpu_is_mx3() || cpu_is_mx25()) {
-- unsigned long long c;
-- unsigned long period_cycles, duty_cycles, prescale;
-- u32 cr;
+ c = clk_get_rate(pwm->clk);
+
+ c = c * period_ns;
+
+ if (cpu_is_mx1() || cpu_is_mx2())
+ c >>= 1;
-
-- c = clk_get_rate(pwm->clk);
-- c = c * period_ns;
-- do_div(c, 1000000000);
-- period_cycles = c;
++
+ do_div(c, 1000000000);
+ period_cycles = c;
-
-- prescale = period_cycles / 0x10000 + 1;
++
+ prescale = period_cycles / 0x10000 + 1;
-
-- period_cycles /= prescale;
-- c = (unsigned long long)period_cycles * duty_ns;
-- do_div(c, period_ns);
-- duty_cycles = c;
++
+ period_cycles /= prescale;
+ c = (unsigned long long)period_cycles * duty_ns;
+ do_div(c, period_ns);
+ duty_cycles = c;
+
+
-+ if (cpu_is_mx27() || cpu_is_mx3() || cpu_is_mx25()) {
-+ u32 cr;
+ if (cpu_is_mx27() || cpu_is_mx3() || cpu_is_mx25()) {
+- unsigned long long c;
+- unsigned long period_cycles, duty_cycles, prescale;
+ u32 cr;
+- c = clk_get_rate(pwm->clk);
+- c = c * period_ns;
+- do_div(c, 1000000000);
+- period_cycles = c;
+-
+- prescale = period_cycles / 0x10000 + 1;
+-
+- period_cycles /= prescale;
+- c = (unsigned long long)period_cycles * duty_ns;
+- do_div(c, period_ns);
+- duty_cycles = c;
+-
writel(duty_cycles, pwm->mmio_base + MX3_PWMSAR);
writel(period_cycles, pwm->mmio_base + MX3_PWMPR);
-@@ -86,25 +98,28 @@ int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns)
+
+@@ -86,25 +98,28 @@ int pwm_config(struct pwm_device *pwm, i
writel(cr, pwm->mmio_base + MX3_PWMCR);
} else if (cpu_is_mx1() || cpu_is_mx21()) {
@@ -108,7 +108,7 @@ index c36f263..acc5dc1 100644
} else {
BUG();
}
-@@ -116,6 +130,11 @@ EXPORT_SYMBOL(pwm_config);
+@@ -116,6 +131,11 @@ EXPORT_SYMBOL(pwm_config);
int pwm_enable(struct pwm_device *pwm)
{
int rc = 0;
@@ -120,7 +120,7 @@ index c36f263..acc5dc1 100644
if (!pwm->clk_enabled) {
rc = clk_enable(pwm->clk);
-@@ -128,7 +147,13 @@ EXPORT_SYMBOL(pwm_enable);
+@@ -128,7 +148,13 @@ EXPORT_SYMBOL(pwm_enable);
void pwm_disable(struct pwm_device *pwm)
{