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authorAndré Draszik <andre.draszik@linaro.org>2025-03-04 17:05:34 +0000
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2025-03-05 23:08:00 +0100
commita55d44807b63f171f8079d770c9d82fa87046cdd (patch)
tree8c733f0617892d10b96c9730b3f5f4cd9d648387 /drivers/rtc
parent5d0ad519f503b8432ebc396dfe87e6190dbdcbb1 (diff)
rtc: ftrtc010: drop needless struct ftrtc010_rtc::rtc_dev member
The memory pointed to by the ::rtc_dev member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-6-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-ftrtc010.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/rtc/rtc-ftrtc010.c b/drivers/rtc/rtc-ftrtc010.c
index cb4a5d101f53..02608d378495 100644
--- a/drivers/rtc/rtc-ftrtc010.c
+++ b/drivers/rtc/rtc-ftrtc010.c
@@ -28,7 +28,6 @@ MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);
struct ftrtc010_rtc {
- struct rtc_device *rtc_dev;
void __iomem *rtc_base;
int rtc_irq;
struct clk *pclk;
@@ -113,6 +112,7 @@ static int ftrtc010_rtc_probe(struct platform_device *pdev)
struct ftrtc010_rtc *rtc;
struct device *dev = &pdev->dev;
struct resource *res;
+ struct rtc_device *rtc_dev;
int ret;
rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
@@ -160,29 +160,28 @@ static int ftrtc010_rtc_probe(struct platform_device *pdev)
goto err_disable_extclk;
}
- rtc->rtc_dev = devm_rtc_allocate_device(dev);
- if (IS_ERR(rtc->rtc_dev)) {
- ret = PTR_ERR(rtc->rtc_dev);
+ rtc_dev = devm_rtc_allocate_device(dev);
+ if (IS_ERR(rtc_dev)) {
+ ret = PTR_ERR(rtc_dev);
goto err_disable_extclk;
}
- rtc->rtc_dev->ops = &ftrtc010_rtc_ops;
+ rtc_dev->ops = &ftrtc010_rtc_ops;
sec = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);
min = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);
hour = readl(rtc->rtc_base + FTRTC010_RTC_HOUR);
days = readl(rtc->rtc_base + FTRTC010_RTC_DAYS);
- rtc->rtc_dev->range_min = (u64)days * 86400 + hour * 3600 +
- min * 60 + sec;
- rtc->rtc_dev->range_max = U32_MAX + rtc->rtc_dev->range_min;
+ rtc_dev->range_min = (u64)days * 86400 + hour * 3600 + min * 60 + sec;
+ rtc_dev->range_max = U32_MAX + rtc_dev->range_min;
ret = devm_request_irq(dev, rtc->rtc_irq, ftrtc010_rtc_interrupt,
IRQF_SHARED, pdev->name, dev);
if (unlikely(ret))
goto err_disable_extclk;
- return devm_rtc_register_device(rtc->rtc_dev);
+ return devm_rtc_register_device(rtc_dev);
err_disable_extclk:
clk_disable_unprepare(rtc->extclk);