[PATCH 1/2] ARM imx53: add pwm devices support

[Jason Chen]

Signed-off-by: Jason Chen <b02280 at freescale.com>
---
 arch/arm/mach-mx5/clock-mx51-mx53.c          |    2 ++
 arch/arm/mach-mx5/devices-imx53.h            |    4 ++++
 arch/arm/plat-mxc/devices/platform-mxc_pwm.c |    9 +++++++++
 arch/arm/plat-mxc/pwm.c                      |    3 ++-
 4 files changed, 17 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-mx5/clock-mx51-mx53.c b/arch/arm/mach-mx5/clock-mx51-mx53.c
index 8164b1d..8a2b8de 100644
--- a/arch/arm/mach-mx5/clock-mx51-mx53.c
+++ b/arch/arm/mach-mx5/clock-mx51-mx53.c
@@ -1338,6 +1338,8 @@ static struct clk_lookup mx53_lookups[] = {
 	_REGISTER_CLOCK("imx53-cspi.0", NULL, cspi_clk)
 	_REGISTER_CLOCK("imx2-wdt.0", NULL, dummy_clk)
 	_REGISTER_CLOCK("imx2-wdt.1", NULL, dummy_clk)
+	_REGISTER_CLOCK("mxc_pwm.0", NULL, pwm1_clk)
+	_REGISTER_CLOCK("mxc_pwm.1", NULL, pwm2_clk)
 };
 
 static void clk_tree_init(void)
diff --git a/arch/arm/mach-mx5/devices-imx53.h b/arch/arm/mach-mx5/devices-imx53.h
index 9251008..5a1d6c9 100644
--- a/arch/arm/mach-mx5/devices-imx53.h
+++ b/arch/arm/mach-mx5/devices-imx53.h
@@ -33,3 +33,7 @@ extern const struct imx_spi_imx_data imx53_ecspi_data[] __initconst;
 extern const struct imx_imx2_wdt_data imx53_imx2_wdt_data[] __initconst;
 #define imx53_add_imx2_wdt(id, pdata)	\
 	imx_add_imx2_wdt(&imx53_imx2_wdt_data[id])
+
+extern const struct imx_mxc_pwm_data imx53_mxc_pwm_data[] __initconst;
+#define imx53_add_mxc_pwm(id)	\
+	imx_add_mxc_pwm(&imx53_mxc_pwm_data[id])
diff --git a/arch/arm/plat-mxc/devices/platform-mxc_pwm.c b/arch/arm/plat-mxc/devices/platform-mxc_pwm.c
index b0c4ae2..18cfd07 100644
--- a/arch/arm/plat-mxc/devices/platform-mxc_pwm.c
+++ b/arch/arm/plat-mxc/devices/platform-mxc_pwm.c
@@ -49,6 +49,15 @@ const struct imx_mxc_pwm_data imx51_mxc_pwm_data[] __initconst = {
 };
 #endif /* ifdef CONFIG_SOC_IMX51 */
 
+#ifdef CONFIG_SOC_IMX53
+const struct imx_mxc_pwm_data imx53_mxc_pwm_data[] __initconst = {
+#define imx53_mxc_pwm_data_entry(_id, _hwid)				\
+	imx_mxc_pwm_data_entry(MX53, _id, _hwid, SZ_16K)
+	imx53_mxc_pwm_data_entry(0, 1),
+	imx53_mxc_pwm_data_entry(1, 2),
+};
+#endif /* ifdef CONFIG_SOC_IMX53 */
+
 struct platform_device *__init imx_add_mxc_pwm(
 		const struct imx_mxc_pwm_data *data)
 {
diff --git a/arch/arm/plat-mxc/pwm.c b/arch/arm/plat-mxc/pwm.c
index 7a61ef8..61dd8fb 100644
--- a/arch/arm/plat-mxc/pwm.c
+++ b/arch/arm/plat-mxc/pwm.c
@@ -57,7 +57,8 @@ 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() || cpu_is_mx51()) {
+	if (cpu_is_mx27() || cpu_is_mx3() || cpu_is_mx25() || cpu_is_mx51() ||
+		cpu_is_mx53()) {
 		unsigned long long c;
 		unsigned long period_cycles, duty_cycles, prescale;
 		u32 cr;
-- 
1.7.1