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rtc: m48t86: drop needless struct m48t86_rtc_info::rtc member 

The memory pointed to by the ::rtc 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.

Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-7-d4689a71668c@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
André Draszik 2025-03-04 17:05:35 +00:00 committed by Alexandre Belloni
parent a55d44807b
commit 013df5bdf8
1 changed files with 7 additions and 7 deletions
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14
drivers/rtc/rtc-m48t86.c
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@ -41,7 +41,6 @@
struct m48t86_rtc_info { struct m48t86_rtc_info {
void __iomem *index_reg; void __iomem *index_reg;
void __iomem *data_reg; void __iomem *data_reg;
struct rtc_device *rtc;
}; };
static unsigned char m48t86_readb(struct device *dev, unsigned long addr) static unsigned char m48t86_readb(struct device *dev, unsigned long addr)
@ -219,6 +218,7 @@ static bool m48t86_verify_chip(struct platform_device *pdev)
static int m48t86_rtc_probe(struct platform_device *pdev) static int m48t86_rtc_probe(struct platform_device *pdev)
{ {
struct m48t86_rtc_info *info; struct m48t86_rtc_info *info;
struct rtc_device *rtc;
unsigned char reg; unsigned char reg;
int err; int err;
struct nvmem_config m48t86_nvmem_cfg = { struct nvmem_config m48t86_nvmem_cfg = {
@ -250,17 +250,17 @@ static int m48t86_rtc_probe(struct platform_device *pdev)
return -ENODEV; return -ENODEV;
} }
info->rtc = devm_rtc_allocate_device(&pdev->dev); rtc = devm_rtc_allocate_device(&pdev->dev);
if (IS_ERR(info->rtc)) if (IS_ERR(rtc))
return PTR_ERR(info->rtc); return PTR_ERR(rtc);
info->rtc->ops = &m48t86_rtc_ops; rtc->ops = &m48t86_rtc_ops;
err = devm_rtc_register_device(info->rtc); err = devm_rtc_register_device(rtc);
if (err) if (err)
return err; return err;
devm_rtc_nvmem_register(info->rtc, &m48t86_nvmem_cfg); devm_rtc_nvmem_register(rtc, &m48t86_nvmem_cfg);
/* read battery status */ /* read battery status */
reg = m48t86_readb(&pdev->dev, M48T86_D); reg = m48t86_readb(&pdev->dev, M48T86_D);