[PATCH v1 4/6] pwm: tegra: Simplify using devm_reset_control_get_exclusive_deasserted()

This function ensures the reset is already deasserted at probe time and
asserted at unbind. So the remove function and the error paths in the
probe function can be simplified accordingly.

Signed-off-by: Uwe Kleine-König <[email protected]>
---
 drivers/pwm/pwm-tegra.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index e99e1c5b18c3..d7f4baa4cd9b 100644
--- a/drivers/pwm/pwm-tegra.c
+++ b/drivers/pwm/pwm-tegra.c
@@ -108,7 +108,6 @@ struct tegra_pwm_soc {
 
 struct tegra_pwm_chip {
 	struct clk *clk;
-	struct reset_control*rst;
 
 	unsigned long clk_rate;
 	unsigned long min_period_ns;
@@ -319,6 +318,7 @@ static int tegra_pwm_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct pwm_chip *chip;
 	struct tegra_pwm_chip *pc;
+	struct reset_control*rst;
 	const struct tegra_pwm_soc *soc;
 	int ret;
 
@@ -391,20 +391,17 @@ static int tegra_pwm_probe(struct platform_device *pdev)
 	pc->min_period_ns =
 	    (NSEC_PER_SEC / (pc->clk_rate / TEGRA_PWM_DEPTH)) + 1;
 
-	pc->rst = devm_reset_control_get_exclusive(dev, "pwm");
-	if (IS_ERR(pc->rst)) {
-		ret = dev_err_probe(dev, PTR_ERR(pc->rst), "Failed to get reset control\n");
+	rst = devm_reset_control_get_exclusive_deasserted(dev, "pwm");
+	if (IS_ERR(rst)) {
+		ret = dev_err_probe(dev, PTR_ERR(rst), "Failed to get reset control\n");
 		goto put_pm;
 	}
 
-	reset_control_deassert(pc->rst);
-
 	chip->ops = &tegra_pwm_ops;
 
 	ret = pwmchip_add(chip);
 	if (ret < 0) {
 		dev_err_probe(dev, ret, "Adding pwmchip failed\n");
-		reset_control_assert(pc->rst);
 		goto put_pm;
 	}
 
@@ -419,11 +416,8 @@ static int tegra_pwm_probe(struct platform_device *pdev)
 static void tegra_pwm_remove(struct platform_device *pdev)
 {
 	struct pwm_chip *chip = platform_get_drvdata(pdev);
-	struct tegra_pwm_chip *pc = to_tegra_pwm_chip(chip);
 
 	pwmchip_remove(chip);
-
-	reset_control_assert(pc->rst);
 }
 
 static int __maybe_unused tegra_pwm_runtime_suspend(struct device *dev)
-- 
2.55.0.11.g153666a7d9bb