pwm: atmel: Add support for SAM9X60's PWM controller

Add support for SAM9X60's PWM controller.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/pwm/pwm-atmel.c b/drivers/pwm/pwm-atmel.c
index 4ac899d8008c..b1473ed55110 100644
--- a/drivers/pwm/pwm-atmel.c
+++ b/drivers/pwm/pwm-atmel.c
@@ -52,6 +52,8 @@
 
 /* Only the LSB 16 bits are significant. */
 #define PWM_MAXV1_PRD           0xFFFF
+/* All 32 bits are significant. */
+#define PWM_MAXV2_PRD           0xFFFFFFFF
 #define PRD_MAXV1_PRES          10
 
 struct atmel_pwm_registers {
@@ -311,6 +313,20 @@ static const struct atmel_pwm_data atmel_sama5_pwm_data = {
         },
 };
 
+static const struct atmel_pwm_data mchp_sam9x60_pwm_data = {
+        .regs = {
+                .period         = PWMV1_CPRD,
+                .period_upd     = PWMV1_CUPD,
+                .duty           = PWMV1_CDTY,
+                .duty_upd       = PWMV1_CUPD,
+        },
+        .cfg = {
+                /* 32 bits to keep period and duty. */
+                .max_period     = PWM_MAXV2_PRD,
+                .max_pres       = PRD_MAXV1_PRES,
+        },
+};
+
 static const struct platform_device_id atmel_pwm_devtypes[] = {
         {
                 .name = "at91sam9rl-pwm",
@@ -335,6 +351,9 @@ static const struct of_device_id atmel_pwm_dt_ids[] = {
                 .compatible = "atmel,sama5d2-pwm",
                 .data = &atmel_sama5_pwm_data,
         }, {
+                .compatible = "microchip,sam9x60-pwm",
+                .data = &mchp_sam9x60_pwm_data,
+        }, {
                 /* sentinel */
         },
 };