From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: linux-rtc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Subject: [PATCH 5/7] rtc: xgene: stop caching alarm_time
Date: Wed, 20 Mar 2019 13:32:31 +0100 [thread overview]
Message-ID: <20190320123233.13519-5-alexandre.belloni@bootlin.com> (raw)
In-Reply-To: <20190320123233.13519-1-alexandre.belloni@bootlin.com>
There is no point in caching alarm_time for .read_alarm because
.read_alarm is only called at boo time and thus alarm_time is always 0.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
drivers/rtc/rtc-xgene.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/rtc/rtc-xgene.c b/drivers/rtc/rtc-xgene.c
index eb745deda936..6f7d7648a9bd 100644
--- a/drivers/rtc/rtc-xgene.c
+++ b/drivers/rtc/rtc-xgene.c
@@ -35,7 +35,6 @@
struct xgene_rtc_dev {
struct rtc_device *rtc;
struct device *dev;
- unsigned long alarm_time;
void __iomem *csr_base;
struct clk *clk;
unsigned int irq_wake;
@@ -68,7 +67,8 @@ static int xgene_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
{
struct xgene_rtc_dev *pdata = dev_get_drvdata(dev);
- rtc_time_to_tm(pdata->alarm_time, &alrm->time);
+ /* If possible, CMR should be read here */
+ rtc_time_to_tm(0, &alrm->time);
alrm->enabled = readl(pdata->csr_base + RTC_CCR) & RTC_CCR_IE;
return 0;
@@ -105,8 +105,7 @@ static int xgene_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
unsigned long alarm_time;
rtc_tm_to_time(&alrm->time, &alarm_time);
- pdata->alarm_time = alarm_time;
- writel((u32)pdata->alarm_time, pdata->csr_base + RTC_CMR);
+ writel((u32)alarm_time, pdata->csr_base + RTC_CMR);
xgene_rtc_alarm_irq_enable(dev, alrm->enabled);
--
2.20.1
next prev parent reply other threads:[~2019-03-20 12:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-20 12:32 [PATCH 1/7] rtc: xgene: fix possible race condition Alexandre Belloni
2019-03-20 12:32 ` [PATCH 2/7] rtc: xgene: set range Alexandre Belloni
2019-03-20 12:32 ` [PATCH 3/7] rtc: xgene: convert to SPDX identifier Alexandre Belloni
2019-04-01 5:50 ` Mukesh Ojha
2019-04-01 7:56 ` Alexandre Belloni
2019-03-20 12:32 ` [PATCH 4/7] rtc: xgene: correct checkpatch issues Alexandre Belloni
2019-03-20 12:32 ` Alexandre Belloni [this message]
2019-03-20 12:32 ` [PATCH 6/7] rtc: xgene: switch to rtc_time64_to_tm/rtc_tm_to_time64 Alexandre Belloni
2019-03-20 12:32 ` [PATCH 7/7] rtc: xgene: use .set_time Alexandre Belloni
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