提交 1f3fb2b7 编写于 作者: D Dmitry Osipenko 提交者: Wang ShaoBo

regulator: max77620: Use device_set_of_node_from_dev()

stable inclusion
from stable-v5.10.44
commit e3a502abf506e5c054b61a7c524caaa48e8e8537
bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=464
CVE: NA

-------------------------------------------------

commit 6f55c5dd upstream.

The MAX77620 driver fails to re-probe on deferred probe because driver
core tries to claim resources that are already claimed by the PINCTRL
device. Use device_set_of_node_from_dev() helper which marks OF node as
reused, skipping erroneous execution of pinctrl_bind_pins() for the PMIC
device on the re-probe.

Fixes: aea6cb99 ("regulator: resolve supply after creating regulator")
Signed-off-by: NDmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210523224243.13219-2-digetx@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: N843708678 <843708678@qq.com>
Reviewed-by: NJian Cheng <cj.chengjian@huawei.com>
Signed-off-by: NWang ShaoBo <bobo.shaobowang@huawei.com>
上级 7eda4b25
......@@ -814,6 +814,13 @@ static int max77620_regulator_probe(struct platform_device *pdev)
config.dev = dev;
config.driver_data = pmic;
/*
* Set of_node_reuse flag to prevent driver core from attempting to
* claim any pinmux resources already claimed by the parent device.
* Otherwise PMIC driver will fail to re-probe.
*/
device_set_of_node_from_dev(&pdev->dev, pdev->dev.parent);
for (id = 0; id < MAX77620_NUM_REGS; id++) {
struct regulator_dev *rdev;
struct regulator_desc *rdesc;
......
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