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authorClaudiu Beznea <claudiu.beznea@microchip.com>2019-02-25 16:44:45 +0000
committerThierry Reding <thierry.reding@gmail.com>2019-03-04 11:57:44 +0100
commit74d0c3b2050927f364e3320091f234c108bd845d (patch)
treeb66ab061712ec8b2907cc36ffdcfb141421df2f5 /drivers/pwm
parentpwm: atmel: Add PWM binding for SAM9X60 (diff)
downloadwireguard-linux-74d0c3b2050927f364e3320091f234c108bd845d.tar.xz
wireguard-linux-74d0c3b2050927f364e3320091f234c108bd845d.zip
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>
Diffstat (limited to 'drivers/pwm')
-rw-r--r--drivers/pwm/pwm-atmel.c19
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 */
},
};