On 01/13/2016 05:29 PM, Wolfram Sang wrote:
From: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Create a seperate bus for HDMI related I2C slaves and assign it
Separate.
to a i2c-gpio master. It can be switched to the i2c-rcar or
i2c-sh_mobile core at runtime.
Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
---
After the technical details of the underlying driver seem to be more or less
sorted out, I would appreciate some discussion here about changing the Lager
DTS e.g. if we really want GPIO to be the default?
arch/arm/boot/dts/r8a7790-lager.dts | 141 ++++++++++++++++++++++--------------
1 file changed, 88 insertions(+), 53 deletions(-)
diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts
index c553abd711eeb3..d8f0ca8e094dad 100644
--- a/arch/arm/boot/dts/r8a7790-lager.dts
+++ b/arch/arm/boot/dts/r8a7790-lager.dts
[...]
@@ -252,6 +254,79 @@
#clock-cells = <0>;
clock-frequency = <148500000>;
};
+
+
+ gpioi2c: i2c@9 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "i2c-gpio";
I think this prop should go first.
+ status = "disabled";
In a board file? When do you intend to enable it?
+ gpios = <&gpio5 6 GPIO_ACTIVE_HIGH /* sda */
+ &gpio5 5 GPIO_ACTIVE_HIGH /* scl */
+ >;
+ i2c-gpio,delay-us = <5>;
+ };
[...]
MBR, Sergei
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