Thread (18 messages) 18 messages, 4 authors, 2017-01-16

[PATCHv3 3/8] rtc: add STM32 RTC driver

From: Alexandre Belloni <hidden>
Date: 2017-01-11 00:08:18
Also in: linux-devicetree, linux-rtc, lkml

Looks good to me, however...


On 05/01/2017 at 14:43:24 +0100, Amelie Delaunay wrote :
+struct stm32_rtc {
+	struct rtc_device *rtc_dev;
+	void __iomem *base;
+	struct clk *ck_rtc;
+	spinlock_t lock; /* Protects registers accesses */
This spinlock seems to be useless, the rtc ops_lock is already
protecting everywhere it is taken.
+	int irq_alarm;
+};
+
[...]
+static int stm32_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct stm32_rtc *rtc = dev_get_drvdata(dev);
+	struct rtc_time *tm = &alrm->time;
+	unsigned long irqflags;
+	unsigned int cr, isr, alrmar;
+	int ret = 0;
+
+	if (rtc_valid_tm(tm)) {
+		dev_err(dev, "Alarm time not valid.\n");
+		return -EINVAL;
This will never happen, tm is already checked multiple times (up to
three) in the core before this function can be called.
+	}
+
You don't need to resend the whole series, just this patch. I'll take
2/8 and 3/8, the other ones can go through the stm32 tree.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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