From: Changhwan Youn <[email protected]> S3C2410_RTCCON of TYPE_S3C64XX RTC should be read/written by readw and writew, because TYPE_S3C64XX RTC uses bit 8 and 9. And TYPE_S3C2410 RTC also can access it by readw and writew.
Signed-off-by: Changhwan Youn <[email protected]> [[email protected]: tested on smdk2416] Tested-by: Atul Dahiya <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> Cc: Ben Dooks <[email protected]> --- Changes since v1: - Checked this patch on s3c24xx - Added some missing modifications in s3c_rtc_enable() drivers/rtc/rtc-s3c.c | 36 ++++++++++++++++++------------------ 1 files changed, 18 insertions(+), 18 deletions(-) diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index f57a87f..4a0b875 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -100,7 +100,7 @@ static int s3c_rtc_setpie(struct device *dev, int enabled) spin_lock_irq(&s3c_rtc_pie_lock); if (s3c_rtc_cpu_type == TYPE_S3C64XX) { - tmp = readb(s3c_rtc_base + S3C2410_RTCCON); + tmp = readw(s3c_rtc_base + S3C2410_RTCCON); tmp &= ~S3C64XX_RTCCON_TICEN; if (enabled) @@ -318,7 +318,7 @@ static int s3c_rtc_proc(struct device *dev, struct seq_file *seq) unsigned int ticnt; if (s3c_rtc_cpu_type == TYPE_S3C64XX) { - ticnt = readb(s3c_rtc_base + S3C2410_RTCCON); + ticnt = readw(s3c_rtc_base + S3C2410_RTCCON); ticnt &= S3C64XX_RTCCON_TICEN; } else { ticnt = readb(s3c_rtc_base + S3C2410_TICNT); @@ -391,11 +391,11 @@ static void s3c_rtc_enable(struct platform_device *pdev, int en) return; if (!en) { - tmp = readb(base + S3C2410_RTCCON); + tmp = readw(base + S3C2410_RTCCON); if (s3c_rtc_cpu_type == TYPE_S3C64XX) tmp &= ~S3C64XX_RTCCON_TICEN; tmp &= ~S3C2410_RTCCON_RTCEN; - writeb(tmp, base + S3C2410_RTCCON); + writew(tmp, base + S3C2410_RTCCON); if (s3c_rtc_cpu_type == TYPE_S3C2410) { tmp = readb(base + S3C2410_TICNT); @@ -405,25 +405,25 @@ static void s3c_rtc_enable(struct platform_device *pdev, int en) } else { /* re-enable the device, and check it is ok */ - if ((readb(base+S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0){ + if ((readw(base+S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0){ dev_info(&pdev->dev, "rtc disabled, re-enabling\n"); - tmp = readb(base + S3C2410_RTCCON); - writeb(tmp|S3C2410_RTCCON_RTCEN, base+S3C2410_RTCCON); + tmp = readw(base + S3C2410_RTCCON); + writew(tmp|S3C2410_RTCCON_RTCEN, base+S3C2410_RTCCON); } - if ((readb(base + S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)){ + if ((readw(base + S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)){ dev_info(&pdev->dev, "removing RTCCON_CNTSEL\n"); - tmp = readb(base + S3C2410_RTCCON); - writeb(tmp& ~S3C2410_RTCCON_CNTSEL, base+S3C2410_RTCCON); + tmp = readw(base + S3C2410_RTCCON); + writew(tmp& ~S3C2410_RTCCON_CNTSEL, base+S3C2410_RTCCON); } - if ((readb(base + S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)){ + if ((readw(base + S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)){ dev_info(&pdev->dev, "removing RTCCON_CLKRST\n"); - tmp = readb(base + S3C2410_RTCCON); - writeb(tmp & ~S3C2410_RTCCON_CLKRST, base+S3C2410_RTCCON); + tmp = readw(base + S3C2410_RTCCON); + writew(tmp & ~S3C2410_RTCCON_CLKRST, base+S3C2410_RTCCON); } } } @@ -514,8 +514,8 @@ static int __devinit s3c_rtc_probe(struct platform_device *pdev) s3c_rtc_enable(pdev, 1); - pr_debug("s3c2410_rtc: RTCCON=%02x\n", - readb(s3c_rtc_base + S3C2410_RTCCON)); + pr_debug("s3c2410_rtc: RTCCON=%02x\n", + readw(s3c_rtc_base + S3C2410_RTCCON)); device_init_wakeup(&pdev->dev, 1); @@ -578,7 +578,7 @@ static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state) /* save TICNT for anyone using periodic interrupts */ ticnt_save = readb(s3c_rtc_base + S3C2410_TICNT); if (s3c_rtc_cpu_type == TYPE_S3C64XX) { - ticnt_en_save = readb(s3c_rtc_base + S3C2410_RTCCON); + ticnt_en_save = readw(s3c_rtc_base + S3C2410_RTCCON); ticnt_en_save &= S3C64XX_RTCCON_TICEN; } s3c_rtc_enable(pdev, 0); @@ -596,8 +596,8 @@ static int s3c_rtc_resume(struct platform_device *pdev) s3c_rtc_enable(pdev, 1); writeb(ticnt_save, s3c_rtc_base + S3C2410_TICNT); if (s3c_rtc_cpu_type == TYPE_S3C64XX && ticnt_en_save) { - tmp = readb(s3c_rtc_base + S3C2410_RTCCON); - writeb(tmp | ticnt_en_save, s3c_rtc_base + S3C2410_RTCCON); + tmp = readw(s3c_rtc_base + S3C2410_RTCCON); + writew(tmp | ticnt_en_save, s3c_rtc_base + S3C2410_RTCCON); } if (device_may_wakeup(&pdev->dev)) -- 1.6.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
