[PATCH 1/4] pinctrl: samsung: defer pinctrl_enable
From: Mateusz Majewski <hidden>
Date: 2023-10-06 13:01:40
Also in:
linux-gpio, linux-samsung-soc, lkml
Subsystem:
pin control subsystem, pin controller - samsung, the rest · Maintainers:
Linus Walleij, Krzysztof Kozlowski, Sylwester Nawrocki, Peter Griffin, Linus Torvalds
dev_pinctrl_register function immediately enables the pinctrl subsystem, which is unpreferable in general, since drivers might be unable to handle calls immediately. Hence devm_pinctrl_register_and_init, which does not call pinctrl_enable, is preferred. In case of our driver using the old function does not seem to be problematic for now, but will become an issue when we postpone parts of pinctrl initialization in a future commit, and it is a good idea to move off a deprecated-ish function anyway. Signed-off-by: Mateusz Majewski <redacted> --- drivers/pinctrl/samsung/pinctrl-samsung.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c
index e54847040b4a..e496af72a587 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.c
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.c@@ -904,11 +904,11 @@ static int samsung_pinctrl_register(struct platform_device *pdev, if (ret) return ret; - drvdata->pctl_dev = devm_pinctrl_register(&pdev->dev, ctrldesc, - drvdata); - if (IS_ERR(drvdata->pctl_dev)) { + ret = devm_pinctrl_register_and_init(&pdev->dev, ctrldesc, drvdata, + &drvdata->pctl_dev); + if (ret) { dev_err(&pdev->dev, "could not register pinctrl driver\n"); - return PTR_ERR(drvdata->pctl_dev); + return ret; } for (bank = 0; bank < drvdata->nr_banks; ++bank) {
@@ -1176,6 +1176,10 @@ static int samsung_pinctrl_probe(struct platform_device *pdev) if (ret) goto err_unregister; + ret = pinctrl_enable(drvdata->pctl_dev); + if (ret) + goto err_unregister; + platform_set_drvdata(pdev, drvdata); return 0;
--
2.42.0
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