From 52d2d14d9e49b8c33ff718d2036084d0c92f23f1 Mon Sep 17 00:00:00 2001 From: Guodong Xu Date: Tue, 29 Apr 2025 16:50:44 +0800 Subject: [PATCH] pwm: pxa: Add optional reset control MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Support optional reset control for the PWM PXA driver. During probe, it acquires the reset controller using devm_reset_control_get_optional_exclusive_deasserted() to get and deassert the reset controller to enable the PWM channel. Signed-off-by: Guodong Xu Link: https://lore.kernel.org/r/20250429085048.1310409-3-guodong@riscstar.com [ukleinek: Fix conflict with commit df08fff8add2 ("pwm: pxa: Improve using dev_err_probe()")] Signed-off-by: Uwe Kleine-König --- drivers/pwm/pwm-pxa.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c index 8a4a3d2df30de..0f5bdb0e395ea 100644 --- a/drivers/pwm/pwm-pxa.c +++ b/drivers/pwm/pwm-pxa.c @@ -25,6 +25,7 @@ #include #include #include +#include #include @@ -161,6 +162,7 @@ static int pwm_probe(struct platform_device *pdev) struct pwm_chip *chip; struct pxa_pwm_chip *pc; struct device *dev = &pdev->dev; + struct reset_control *rst; int ret = 0; if (IS_ENABLED(CONFIG_OF) && id == NULL) @@ -179,6 +181,10 @@ static int pwm_probe(struct platform_device *pdev) if (IS_ERR(pc->clk)) return dev_err_probe(dev, PTR_ERR(pc->clk), "Failed to get clock\n"); + rst = devm_reset_control_get_optional_exclusive_deasserted(dev, NULL); + if (IS_ERR(rst)) + return PTR_ERR(rst); + chip->ops = &pxa_pwm_ops; if (IS_ENABLED(CONFIG_OF)) -- 2.47.2