[PATCH v2 2/6] ARM: dts: stm32f429: add LSI and LSE clocks

[gabriel.fernandez]

From: Gabriel Fernandez <gabriel.fernan...@st.com>

This patch adds lsi / lse oscillators. These clocks can be use by
RTC clocks.
The clock drivers needs to disable the power domain write protection using
syscon / regmap to enable these clocks.

Signed-off-by: Gabriel Fernandez <gabriel.fernan...@st.com>
---
 arch/arm/boot/dts/stm32f429.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index 336ee4f..2700449 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -56,6 +56,18 @@
                        compatible = "fixed-clock";
                        clock-frequency = <0>;
                };
+
+               clk-lse {
+                       #clock-cells = <0>;
+                       compatible = "fixed-clock";
+                       clock-frequency = <32768>;
+               };
+
+               clk-lsi {
+                       #clock-cells = <0>;
+                       compatible = "fixed-clock";
+                       clock-frequency = <32000>;
+               };
        };
 
        soc {
@@ -185,6 +197,11 @@
                        interrupts = <1>, <2>, <3>, <6>, <7>, <8>, <9>, <10>, 
<23>, <40>, <41>, <42>, <62>, <76>;
                };
 
+               pwrcfg: power-config@40007000 {
+                       compatible = "syscon";
+                       reg = <0x40007000 0x400>;
+               };
+
                pin-controller {
                        #address-cells = <1>;
                        #size-cells = <1>;
@@ -340,6 +357,7 @@
                        compatible = "st,stm32f42xx-rcc", "st,stm32-rcc";
                        reg = <0x40023800 0x400>;
                        clocks = <&clk_hse>;
+                       st,syscfg = <&pwrcfg>;
                };
 
                dma1: dma-controller@40026000 {
-- 
1.9.1