Hi Shunzhou, On 30/12/2021 23:15, Martin Blumenstingl wrote: > On Thu, Dec 30, 2021 at 10:44 AM Shunzhou.Jiang > <shunzhou.jiang@xxxxxxxxxxx> wrote: >> >> From: Shunzhou Jiang <shunzhou.jiang@xxxxxxxxxxx> >> >> Add support s4 Power controller. In s4, power control >> registers are in secure domain, and should be accessed by smc. >> >> Signed-off-by: Shunzhou Jiang <shunzhou.jiang@xxxxxxxxxxx> > Also here I don't have any datasheet to compare this with, so this gets my: > Acked-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx> > > [...] >> + SEC_PD(S4_VPU_HDMI, GENPD_FLAG_ALWAYS_ON), >> + SEC_PD(S4_USB_COMB, GENPD_FLAG_ALWAYS_ON), >> + SEC_PD(S4_GE2D, 0), >> + SEC_PD(S4_ETH, GENPD_FLAG_ALWAYS_ON), > For the A1 SoC's UART entry we have the following comment which > explains why we want to to be "always on": > UART should keep working in ATF after suspend and before resume > > If for some reason you need to re-send this series then it would be > great if you could add a comment above each entry with > GENPD_FLAG_ALWAYS_ON. > It will help others (like me) understand these SoCs better. Can you resend with those comments added so I can apply the patches ? Thanks, Neil > > > Best regards, > Martin >