On Tue, Jul 23, 2024 at 05:23:03PM +0800, Delphine CC Chiu wrote:
> Revise duty cycle SMB11 and SMB16 to high: 40%, low: 60%,
> to meet 400kHz-i2c clock low time spec (> 1.3 us) from EE request
>
> Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@xxxxxxxxxx>
> ---
> arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
> index c2994651e747..c940d23c8a4b 100644
> --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
> +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
> @@ -761,6 +761,7 @@ eeprom@54 {
> &i2c10 {
> status = "okay";
> bus-frequency = <400000>;
> + i2c-clk-high-min-percent = <40>;
I don't see upstream code referencing this property.
It looks like this problem has been reported by Rob's bot multiple times
before when you've submitted this:
https://lore.kernel.org/lkml/171198916336.1093653.5612835610479588096.robh@xxxxxxxxxx/
Is there a reason we aren't fixing this?
Maybe we are depending on this commit? I think we need to reference it
somehow here.
https://lore.kernel.org/lkml/47e7eb15-e38d-ead3-de84-b7454e2c6eb8@xxxxxxxxx/
> i2c-mux@74 {
> compatible = "nxp,pca9544";
> i2c-mux-idle-disconnect;
> @@ -1314,6 +1315,7 @@ &i2c15 {
> mctp-controller;
> multi-master;
> bus-frequency = <400000>;
> + i2c-clk-high-min-percent = <40>;
>
> mctp@10 {
> compatible = "mctp-i2c-controller";
> --
> 2.25.1
>
--
Patrick Williams
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