Merge tag 'pwm/for-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "This contains a few fixes and a bunch of cleanups, a lot of which is
  in preparation for Uwe's character device support that may be ready in
  time for the next merge window"

* tag 'pwm/for-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (37 commits)
  pwm: samsung: Document new member .channel in struct samsung_pwm_chip
  pwm: bcm2835: Add support for suspend/resume
  pwm: brcmstb: Checked clk_prepare_enable() return value
  pwm: brcmstb: Utilize appropriate clock APIs in suspend/resume
  pwm: pxa: Explicitly include correct DT includes
  pwm: cros-ec: Simplify using devm_pwmchip_add() and dev_err_probe()
  pwm: samsung: Consistently use the same name for driver data
  pwm: vt8500: Simplify using devm functions
  pwm: sprd: Simplify using devm_pwmchip_add() and dev_err_probe()
  pwm: sprd: Provide a helper to cast a chip to driver data
  pwm: spear: Simplify using devm functions
  pwm: mtk-disp: Simplify using devm_pwmchip_add()
  pwm: imx-tpm: Simplify using devm functions
  pwm: brcmstb: Simplify using devm functions
  pwm: bcm2835: Simplify using devm functions
  pwm: bcm-iproc: Simplify using devm functions
  pwm: Adapt sysfs API documentation to reality
  pwm: dwc: add PWM bit unset in get_state call
  pwm: dwc: make timer clock configurable
  pwm: dwc: split pci out of core driver
  ...

1 files changed, 18 insertions, 18 deletions

diff --git a/drivers/pwm/pwm-bcm2835.c b/drivers/pwm/pwm-bcm2835.c
index bdfc2a5ec0d6..9777babd5b95 100644
--- a/drivers/pwm/pwm-bcm2835.c
+++ b/drivers/pwm/pwm-bcm2835.c
@@ -129,7 +129,6 @@ static const struct pwm_ops bcm2835_pwm_ops = {
 	.request = bcm2835_pwm_request,
 	.free = bcm2835_pwm_free,
 	.apply = bcm2835_pwm_apply,
-	.owner = THIS_MODULE,
 };
 
 static int bcm2835_pwm_probe(struct platform_device *pdev)
@@ -147,41 +146,42 @@ static int bcm2835_pwm_probe(struct platform_device *pdev)
 	if (IS_ERR(pc->base))
 		return PTR_ERR(pc->base);
 
-	pc->clk = devm_clk_get(&pdev->dev, NULL);
+	pc->clk = devm_clk_get_enabled(&pdev->dev, NULL);
 	if (IS_ERR(pc->clk))
 		return dev_err_probe(&pdev->dev, PTR_ERR(pc->clk),
 				     "clock not found\n");
 
-	ret = clk_prepare_enable(pc->clk);
-	if (ret)
-		return ret;
-
 	pc->chip.dev = &pdev->dev;
 	pc->chip.ops = &bcm2835_pwm_ops;
 	pc->chip.npwm = 2;
 
-	platform_set_drvdata(pdev, pc);
-
-	ret = pwmchip_add(&pc->chip);
+	ret = devm_pwmchip_add(&pdev->dev, &pc->chip);
 	if (ret < 0)
-		goto add_fail;
+		return dev_err_probe(&pdev->dev, ret,
+				     "failed to add pwmchip\n");
 
 	return 0;
+}
+
+static int bcm2835_pwm_suspend(struct device *dev)
+{
+	struct bcm2835_pwm *pc = dev_get_drvdata(dev);
 
-add_fail:
 	clk_disable_unprepare(pc->clk);
-	return ret;
+
+	return 0;
 }
 
-static void bcm2835_pwm_remove(struct platform_device *pdev)
+static int bcm2835_pwm_resume(struct device *dev)
 {
-	struct bcm2835_pwm *pc = platform_get_drvdata(pdev);
-
-	pwmchip_remove(&pc->chip);
+	struct bcm2835_pwm *pc = dev_get_drvdata(dev);
 
-	clk_disable_unprepare(pc->clk);
+	return clk_prepare_enable(pc->clk);
 }
 
+static DEFINE_SIMPLE_DEV_PM_OPS(bcm2835_pwm_pm_ops, bcm2835_pwm_suspend,
+				bcm2835_pwm_resume);
+
 static const struct of_device_id bcm2835_pwm_of_match[] = {
 	{ .compatible = "brcm,bcm2835-pwm", },
 	{ /* sentinel */ }
@@ -192,9 +192,9 @@ static struct platform_driver bcm2835_pwm_driver = {
 	.driver = {
 		.name = "bcm2835-pwm",
 		.of_match_table = bcm2835_pwm_of_match,
+		.pm = pm_ptr(&bcm2835_pwm_pm_ops),
 	},
 	.probe = bcm2835_pwm_probe,
-	.remove_new = bcm2835_pwm_remove,
 };
 module_platform_driver(bcm2835_pwm_driver);