[PATCH] ARM: dts: stm32: configure i2c5 support on stm32mp15xx-dkx

[Alain Volmat]

From: Fabrice Gasnier <fabrice.gasnier at st.com>

Configure I2C5 on stm32mp15 DK boards. It's available and can be used on:
- Arduino connector
- GPIO expansion connector
Keep it disabled by default, so the pins are kept in their initial state to
lower power consumption. This way they can also be used as GPIO.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier at st.com>
Signed-off-by: Alain Volmat <alain.volmat at st.com>
---
 arch/arm/boot/dts/stm32mp15xx-dkx.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
index fcf50131e5fe..e69aba9830b3 100644
--- a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
@@ -361,6 +361,19 @@
 	};
 };
 
+&i2c5 {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&i2c5_pins_a>;
+	pinctrl-1 = <&i2c5_sleep_pins_a>;
+	i2c-scl-rising-time-ns = <185>;
+	i2c-scl-falling-time-ns = <20>;
+	clock-frequency = <400000>;
+	/* spare dmas for other usage */
+	/delete-property/dmas;
+	/delete-property/dma-names;
+	status = "disabled";
+};
+
 &i2s2 {
 	clocks = <&rcc SPI2>, <&rcc SPI2_K>, <&rcc PLL3_Q>, <&rcc PLL3_R>;
 	clock-names = "pclk", "i2sclk", "x8k", "x11k";
-- 
2.17.1