arm: dt: bcm2712: Reduce DDC frequency to 97.5kHz from 200kHz.

The I2C spec says the DDC link should run at 100kHz or less, however
Pi5/BCM2712 had been configured for 200kHz.
Reduce it to comply with the spec, and match Pi4.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

diff --git a/arch/arm/boot/dts/broadcom/bcm2712.dtsi b/arch/arm/boot/dts/broadcom/bcm2712.dtsi
index 09c4ee2..1231929 100644 (file)
--- a/arch/arm/boot/dts/broadcom/bcm2712.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm2712.dtsi
@@ -442,7 +442,7 @@
                        reg = <0x7d508200 0x58>;
                        interrupt-parent = <&bsc_irq>;
                        interrupts = <1>;
-                       clock-frequency = <200000>;
+                       clock-frequency = <97500>;
                        #address-cells = <1>;
                        #size-cells = <0>;
                        status = "disabled";
@@ -453,7 +453,7 @@
                        reg = <0x7d508280 0x58>;
                        interrupt-parent = <&bsc_irq>;
                        interrupts = <2>;
-                       clock-frequency = <200000>;
+                       clock-frequency = <97500>;
                        #address-cells = <1>;
                        #size-cells = <0>;
                        status = "disabled";