From 3baca76f5653482f4b7fe1fc400b01877f6b2d92 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Sun, 7 Sep 2008 18:12:59 -0700 Subject: [PATCH] sparc64: fix wrong m48t59 RTC year Correctly calculate offset to the year register for Mostek RTC. Signed-off-by: Krzysztof Helt Signed-off-by: David S. Miller --- arch/sparc64/kernel/time.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c index 209e7d28c3a5..226a0042d870 100644 --- a/arch/sparc64/kernel/time.c +++ b/arch/sparc64/kernel/time.c @@ -500,6 +500,7 @@ static struct of_platform_driver bq4802_driver = { static unsigned char mostek_read_byte(struct device *dev, u32 ofs) { struct platform_device *pdev = to_platform_device(dev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; void __iomem *regs; unsigned char val; @@ -507,7 +508,7 @@ static unsigned char mostek_read_byte(struct device *dev, u32 ofs) val = readb(regs + ofs); /* the year 0 is 1968 */ - if (ofs == M48T59_YEAR) { + if (ofs == pdata->offset + M48T59_YEAR) { val += 0x68; if ((val & 0xf) > 9) val += 6; @@ -518,10 +519,11 @@ static unsigned char mostek_read_byte(struct device *dev, u32 ofs) static void mostek_write_byte(struct device *dev, u32 ofs, u8 val) { struct platform_device *pdev = to_platform_device(dev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; void __iomem *regs; regs = (void __iomem *) pdev->resource[0].start; - if (ofs == M48T59_YEAR) { + if (ofs == pdata->offset + M48T59_YEAR) { if (val < 0x68) val += 0x32; else -- 2.34.1