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ARM: dts: stm32: configure i2c5 support on stm32mp15xx-dkx

Message ID 1592904672-12781-1-git-send-email-alain.volmat@st.com
State New
Headers show
Series ARM: dts: stm32: configure i2c5 support on stm32mp15xx-dkx | expand

Commit Message

Alain Volmat June 23, 2020, 9:31 a.m. UTC 
From: Fabrice Gasnier <fabrice.gasnier@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@st.com>
Signed-off-by: Alain Volmat <alain.volmat@st.com>
---
 arch/arm/boot/dts/stm32mp15xx-dkx.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)
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Patch

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";