| Message ID | 20240906062701.37088-23-Delphine_CC_Chiu@wiwynn.com (mailing list archive) |
|---|---|
| State | Handled Elsewhere |
| Delegated to: | Geert Uytterhoeven |
| Headers | show |
| Series | Add i2c-mux and eeprom devices for Meta Yosemite 4 | expand |
Hi Delphine, On Fri, Sep 6, 2024 at 8:28 AM Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com> 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@wiwynn.com> Thanks for your patch! > --- 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>; This property is documented nowhere, except for a not-yet-accepted patch submission in 2022. It looks like you've been told before, multiple times... > i2c-mux@74 { > compatible = "nxp,pca9544"; > i2c-mux-idle-disconnect; Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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>; 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";
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@wiwynn.com> --- arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts | 2 ++ 1 file changed, 2 insertions(+)