[PATCH 0/2] RTC support on STM32H743

[PATCH 0/2] RTC support on STM32H743

[Amelie Delaunay]

This patchset add support for RTC on STM32H743 and enables it on stm32h743i-eval.
Tested on stm32-next.

Amelie Delaunay (2):
  ARM: dts: stm32: add RTC support on STM32H743
  ARM: dts: stm32: enable RTC on stm32h743i-eval

 arch/arm/boot/dts/stm32h743.dtsi      | 15 +++++++++++++++
 arch/arm/boot/dts/stm32h743i-eval.dts |  4 ++++
 2 files changed, 19 insertions(+)

-- 
2.7.4

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[PATCH 1/2] ARM: dts: stm32: add RTC support on STM32H743

[Amelie Delaunay]

This patch adds support for RTC on STM32H743 SoC.
It also adds dt-bindings/interrupt-controller/irq.h include and uses it to
configure RTC alarm interrupt.

Signed-off-by: Amelie Delaunay <amelie.delaunay-qxv4g6HH51o@public.gmane.org>
---
 arch/arm/boot/dts/stm32h743.dtsi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi
index 38d7cb8..b4487d1 100644
--- a/arch/arm/boot/dts/stm32h743.dtsi
+++ b/arch/arm/boot/dts/stm32h743.dtsi
@@ -44,6 +44,7 @@
 #include "armv7-m.dtsi"
 #include <dt-bindings/clock/stm32h7-clks.h>
 #include <dt-bindings/mfd/stm32h7-rcc.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 
 / {
 	clocks {
@@ -326,6 +327,20 @@
 			status = "disabled";
 		};
 
+		rtc: rtc@58004000 {
+			compatible = "st,stm32h7-rtc";
+			reg = <0x58004000 0x400>;
+			clocks = <&rcc RTCAPB_CK>, <&rcc RTC_CK>;
+			clock-names = "pclk", "rtc_ck";
+			assigned-clocks = <&rcc RTC_CK>;
+			assigned-clock-parents = <&rcc LSE_CK>;
+			interrupt-parent = <&exti>;
+			interrupts = <17 IRQ_TYPE_EDGE_RISING>;
+			interrupt-names = "alarm";
+			st,syscfg = <&pwrcfg>;
+			status = "disabled";
+		};
+
 		rcc: reset-clock-controller@58024400 {
 			compatible = "st,stm32h743-rcc", "st,stm32-rcc";
 			reg = <0x58024400 0x400>;
-- 
2.7.4

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Re: [PATCH 1/2] ARM: dts: stm32: add RTC support on STM32H743

[kbuild test robot]

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Hi Amelie,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on robh/for-next]
[also build test ERROR on v4.16-rc2 next-20180219]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Amelie-Delaunay/RTC-support-on-STM32H743/20180219-061718
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: arm-multi_v5_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All errors (new ones prefixed by >>):

>> ERROR: Input tree has errors, aborting (use -f to force output)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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[-- Attachment #3: Type: text/plain, Size: 176 bytes --]

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[PATCH 2/2] ARM: dts: stm32: enable RTC on stm32h743i-eval

[Amelie Delaunay]

This patch enables RTC on stm32h743i-eval.

Signed-off-by: Amelie Delaunay <amelie.delaunay-qxv4g6HH51o@public.gmane.org>
---
 arch/arm/boot/dts/stm32h743i-eval.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/stm32h743i-eval.dts b/arch/arm/boot/dts/stm32h743i-eval.dts
index 9f0e72c..cc8e458 100644
--- a/arch/arm/boot/dts/stm32h743i-eval.dts
+++ b/arch/arm/boot/dts/stm32h743i-eval.dts
@@ -84,6 +84,10 @@
 	clock-frequency = <25000000>;
 };
 
+&rtc {
+	status = "okay";
+};
+
 &usart1 {
 	pinctrl-0 = <&usart1_pins>;
 	pinctrl-names = "default";
-- 
2.7.4

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Re: [PATCH 0/2] RTC support on STM32H743

[Alexandre Torgue]

Hi Amélie,

On 02/16/2018 02:16 PM, Amelie Delaunay wrote:
> This patchset add support for RTC on STM32H743 and enables it on stm32h743i-eval.
> Tested on stm32-next.
> 
> Amelie Delaunay (2):
>    ARM: dts: stm32: add RTC support on STM32H743
>    ARM: dts: stm32: enable RTC on stm32h743i-eval
> 
>   arch/arm/boot/dts/stm32h743.dtsi      | 15 +++++++++++++++
>   arch/arm/boot/dts/stm32h743i-eval.dts |  4 ++++
>   2 files changed, 19 insertions(+)
> 

Kbuild issue occurs on patch1 because MAINTAINER file is not correct for 
ARM/STM32. I send a patch to fix it: 
https://lkml.org/lkml/2018/2/26/386. There is no Kbuild issue if patches 
are applied on the correct branch: 
git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32.git stm32-next.

So series applied on stm32-next.

regards
Alex

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