pwm: bcm-kona: Don't set polarity in probe

Omit setting the polarity to normal during probe and instead use the new
pwmchip_add_with_polarity() function to register a PWM chip with inverse
polarity by default for all channels to reflect the hardware default.

Signed-off-by: Arun Ramamurthy <arunrama@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Tim Kryger <tim.kryger@gmail.com>
Signed-off-by: Jonathan Richardson <jonathar@broadcom.com>
[thierry.reding@gmail.com: use pwmchip_add_with_polarity()]
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

1 files changed, 3 insertions, 6 deletions

diff --git a/drivers/pwm/pwm-bcm-kona.c b/drivers/pwm/pwm-bcm-kona.c
index 02bc048892a9..7af8fea2dc5b 100644
--- a/drivers/pwm/pwm-bcm-kona.c
+++ b/drivers/pwm/pwm-bcm-kona.c
@@ -266,18 +266,15 @@ static int kona_pwmc_probe(struct platform_device *pdev)
                 return ret;
         }
 
-        /* Set smooth mode, push/pull, and normal polarity for all channels */
-        for (chan = 0; chan < kp->chip.npwm; chan++) {
-                value |= (1 << PWM_CONTROL_SMOOTH_SHIFT(chan));
+        /* Set push/pull for all channels */
+        for (chan = 0; chan < kp->chip.npwm; chan++)
                 value |= (1 << PWM_CONTROL_TYPE_SHIFT(chan));
-                value |= (1 << PWM_CONTROL_POLARITY_SHIFT(chan));
-        }
 
         writel(value, kp->base + PWM_CONTROL_OFFSET);
 
         clk_disable_unprepare(kp->clk);
 
-        ret = pwmchip_add(&kp->chip);
+        ret = pwmchip_add_with_polarity(&kp->chip, PWM_POLARITY_INVERSED);
         if (ret < 0)
                 dev_err(&pdev->dev, "failed to add PWM chip: %d\n", ret);