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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




Hi Alexandre,

On 01/11/2017 01:08 AM, Alexandre Belloni wrote:
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.

After having a deeper look on ops_lock, it seems this one is sufficient, so I'll remove all spinlock uses in this driver.
+	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're right. I'll remove all rtc_valid_tm calls.
+	}
+

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.

Thanks for reviewing. I send a v4 for this patch right now.
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux