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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-09-29 18:19:12 +0200
committerThierry Reding <thierry.reding@gmail.com>2023-10-13 10:07:18 +0200
commit05c9b6f8e53446c6f7e9ff52e181b4f30459f452 (patch)
tree81d5d98f13db8824b1b072f0e26c8af4f94de2b2 /drivers/pwm
parentpwm: imx-tpm: Simplify using devm functions (diff)
downloadlinux-05c9b6f8e53446c6f7e9ff52e181b4f30459f452.tar.xz
linux-05c9b6f8e53446c6f7e9ff52e181b4f30459f452.zip
pwm: mtk-disp: Simplify using devm_pwmchip_add()
With devm_pwmchip_add() pwmchip_remove() can be dropped from the remove callback. Then the remove callback is empty and can go away, too. With mtk_disp_pwm_remove() the last user of platform_get_drvdata() is gone and so platform_set_drvdata() can be dropped, too. Also use dev_err_probe() for simplified (and improved) error reporting. Link: https://lore.kernel.org/r/20230929161918.2410424-6-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
-rw-r--r--drivers/pwm/pwm-mtk-disp.c24
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
index 7748e3eaa818..a72f7be36996 100644
--- a/drivers/pwm/pwm-mtk-disp.c
+++ b/drivers/pwm/pwm-mtk-disp.c
@@ -246,34 +246,25 @@ static int mtk_disp_pwm_probe(struct platform_device *pdev)
mdp->clk_main = devm_clk_get(&pdev->dev, "main");
if (IS_ERR(mdp->clk_main))
- return PTR_ERR(mdp->clk_main);
+ return dev_err_probe(&pdev->dev, PTR_ERR(mdp->clk_main),
+ "Failed to get main clock\n");
mdp->clk_mm = devm_clk_get(&pdev->dev, "mm");
if (IS_ERR(mdp->clk_mm))
- return PTR_ERR(mdp->clk_mm);
+ return dev_err_probe(&pdev->dev, PTR_ERR(mdp->clk_mm),
+ "Failed to get mm clock\n");
mdp->chip.dev = &pdev->dev;
mdp->chip.ops = &mtk_disp_pwm_ops;
mdp->chip.npwm = 1;
- ret = pwmchip_add(&mdp->chip);
- if (ret < 0) {
- dev_err(&pdev->dev, "pwmchip_add() failed: %pe\n", ERR_PTR(ret));
- return ret;
- }
-
- platform_set_drvdata(pdev, mdp);
+ ret = devm_pwmchip_add(&pdev->dev, &mdp->chip);
+ if (ret < 0)
+ return dev_err_probe(&pdev->dev, ret, "pwmchip_add() failed\n");
return 0;
}
-static void mtk_disp_pwm_remove(struct platform_device *pdev)
-{
- struct mtk_disp_pwm *mdp = platform_get_drvdata(pdev);
-
- pwmchip_remove(&mdp->chip);
-}
-
static const struct mtk_pwm_data mt2701_pwm_data = {
.enable_mask = BIT(16),
.con0 = 0xa8,
@@ -319,7 +310,6 @@ static struct platform_driver mtk_disp_pwm_driver = {
.of_match_table = mtk_disp_pwm_of_match,
},
.probe = mtk_disp_pwm_probe,
- .remove_new = mtk_disp_pwm_remove,
};
module_platform_driver(mtk_disp_pwm_driver);