Merge git://git.denx.de/u-boot-fsl-qoriq

[platform/kernel/u-boot.git] / drivers / pwm / rk_pwm.c

diff --git a/drivers/pwm/rk_pwm.c b/drivers/pwm/rk_pwm.c
index 9254f5b..2364c2d 100644 (file)
--- a/drivers/pwm/rk_pwm.c
+++ b/drivers/pwm/rk_pwm.c
@@ -21,8 +21,23 @@ DECLARE_GLOBAL_DATA_PTR;
 struct rk_pwm_priv {
        struct rk3288_pwm *regs;
        ulong freq;
+       uint enable_conf;
 };
 
+static int rk_pwm_set_invert(struct udevice *dev, uint channel, bool polarity)
+{
+       struct rk_pwm_priv *priv = dev_get_priv(dev);
+
+       debug("%s: polarity=%u\n", __func__, polarity);
+       priv->enable_conf &= ~(PWM_DUTY_MASK | PWM_INACTIVE_MASK);
+       if (polarity)
+               priv->enable_conf |= PWM_DUTY_NEGATIVE | PWM_INACTIVE_POSTIVE;
+       else
+               priv->enable_conf |= PWM_DUTY_POSTIVE | PWM_INACTIVE_NEGATIVE;
+
+       return 0;
+}
+
 static int rk_pwm_set_config(struct udevice *dev, uint channel, uint period_ns,
                             uint duty_ns)
 {
@@ -32,7 +47,7 @@ static int rk_pwm_set_config(struct udevice *dev, uint channel, uint period_ns,
 
        debug("%s: period_ns=%u, duty_ns=%u\n", __func__, period_ns, duty_ns);
        writel(PWM_SEL_SRC_CLK | PWM_OUTPUT_LEFT | PWM_LP_DISABLE |
-               PWM_CONTINUOUS | PWM_DUTY_POSTIVE | PWM_INACTIVE_POSTIVE |
+               PWM_CONTINUOUS | priv->enable_conf |
                RK_PWM_DISABLE,
                &regs->ctrl);
 
@@ -61,7 +76,7 @@ static int rk_pwm_ofdata_to_platdata(struct udevice *dev)
 {
        struct rk_pwm_priv *priv = dev_get_priv(dev);
 
-       priv->regs = (struct rk3288_pwm *)dev_get_addr(dev);
+       priv->regs = (struct rk3288_pwm *)devfdt_get_addr(dev);
 
        return 0;
 }
@@ -78,11 +93,13 @@ static int rk_pwm_probe(struct udevice *dev)
                return -EINVAL;
        }
        priv->freq = clk_get_rate(&clk);
+       priv->enable_conf = PWM_DUTY_POSTIVE | PWM_INACTIVE_POSTIVE;
 
        return 0;
 }
 
 static const struct pwm_ops rk_pwm_ops = {
+       .set_invert     = rk_pwm_set_invert,
        .set_config     = rk_pwm_set_config,
        .set_enable     = rk_pwm_set_enable,
 };