Enable PWM on sama5d2 by adding atmel_pwm_config_v3().
This, simply, sets the period and duty factor registers.
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/pwm/atmel-pwm.txt | 1 +
drivers/pwm/pwm-atmel.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/Documentation/devicetree/bindings/pwm/atmel-pwm.txt b/Documentation/devicetree/bindings/pwm/atmel-pwm.txt
index 02331b9..c8c831d 100644
--- a/Documentation/devicetree/bindings/pwm/atmel-pwm.txt
+++ b/Documentation/devicetree/bindings/pwm/atmel-pwm.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible: should be one of:
- "atmel,at91sam9rl-pwm"
- "atmel,sama5d3-pwm"
+ - "atmel,sama5d2-pwm"
- reg: physical base address and length of the controller's registers
- #pwm-cells: Should be 3. See pwm.txt in this directory for a
description of the cells format.
diff --git a/drivers/pwm/pwm-atmel.c b/drivers/pwm/pwm-atmel.c
index 0e4bd4e..4406639 100644
--- a/drivers/pwm/pwm-atmel.c
+++ b/drivers/pwm/pwm-atmel.c
@@ -207,6 +207,15 @@ static void atmel_pwm_config_v2(struct pwm_chip *chip, struct pwm_device *pwm,
}
}
+static void atmel_pwm_config_v3(struct pwm_chip *chip, struct pwm_device *pwm,
+ unsigned long dty, unsigned long prd)
+{
+ struct atmel_pwm_chip *atmel_pwm = to_atmel_pwm_chip(chip);
+
+ atmel_pwm_ch_writel(atmel_pwm, pwm->hwpwm, PWMV2_CDTY, dty);
+ atmel_pwm_ch_writel(atmel_pwm, pwm->hwpwm, PWMV2_CPRD, prd);
+}
+
static int atmel_pwm_set_polarity(struct pwm_chip *chip, struct pwm_device *pwm,
enum pwm_polarity polarity)
{
@@ -295,6 +304,10 @@ static const struct atmel_pwm_data atmel_pwm_data_v2 = {
.config = atmel_pwm_config_v2,
};
+static const struct atmel_pwm_data atmel_pwm_data_v3 = {
+ .config = atmel_pwm_config_v3,
+};
+
static const struct platform_device_id atmel_pwm_devtypes[] = {
{
.name = "at91sam9rl-pwm",
@@ -316,6 +329,9 @@ static const struct of_device_id atmel_pwm_dt_ids[] = {
.compatible = "atmel,sama5d3-pwm",
.data = &atmel_pwm_data_v2,
}, {
+ .compatible = "atmel,sama5d2-pwm",
+ .data = &atmel_pwm_data_v3,
+ }, {
/* sentinel */
},
};
--
2.7.4
--
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