From 814691c7f7d1f958ac30c3dca5070a95c1f658dd Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Tue, 28 Sep 2021 03:03:32 -0500 Subject: rtc: sun6i: Allow probing without an early clock provider Some SoCs have an RTC supported by this RTC driver, but do not have an early clock provider declared here. Currently, this prevents the RTC driver from probing, because it expects a global struct to already be allocated. Fix probing the driver by copying the missing pieces from the clock provider setup function, replacing them with the devm variants. Signed-off-by: Samuel Holland Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20210928080335.36706-7-samuel@sholland.org --- drivers/rtc/rtc-sun6i.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'drivers/rtc') diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c index adec1b14a8de..711832c758ae 100644 --- a/drivers/rtc/rtc-sun6i.c +++ b/drivers/rtc/rtc-sun6i.c @@ -673,8 +673,17 @@ static int sun6i_rtc_probe(struct platform_device *pdev) struct sun6i_rtc_dev *chip = sun6i_rtc; int ret; - if (!chip) - return -ENODEV; + if (!chip) { + chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL); + if (!chip) + return -ENOMEM; + + spin_lock_init(&chip->lock); + + chip->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(chip->base)) + return PTR_ERR(chip->base); + } platform_set_drvdata(pdev, chip); -- cgit v1.2.3