linux-kernel - RE: [PATCH 2/2] venus: pm_helpers: Use dev_pm_genpd_set

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Message-ID: <ac44b1ef5fa84e1baa2dd11eefb48f4b@quicinc.com>
Date: Mon, 25 Nov 2024 03:34:51 +0000
From: "Renjiang Han (QUIC)" <quic_renjiang@...cinc.com>
To: "bryan.odonoghue@...aro.org" <bryan.odonoghue@...aro.org>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        "Stephen
 Boyd" <sboyd@...nel.org>,
        Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        "Vikash Garodia (QUIC)" <quic_vgarodia@...cinc.com>,
        Mauro Carvalho Chehab
	<mchehab@...nel.org>
CC: "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
        "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>
Subject: RE: [PATCH 2/2] venus: pm_helpers: Use dev_pm_genpd_set_hwmode to
 switch GDSC mode on V4

On Friday, November 22, 2024 8:51 PM, Bryan O'Donoghue wrote:
> On 22/11/2024 10:31, Renjiang Han wrote:
> > -	if (IS_V6(core))
> > +	if (IS_V6(core) || IS_V4(core))

> sdm845 IS_V4()

> The GDSCs for the clock OTOH are


> static struct gdsc vcodec0_gdsc = {
>          .gdscr = 0x874,
 >         .pd = {
 >                .name = "vcodec0_gdsc",
 >          },
 >         .cxcs = (unsigned int []){ 0x890, 0x930 },
 >         .cxc_count = 2,
 >         .flags = HW_CTRL | POLL_CFG_GDSCR,
 >         .pwrsts = PWRSTS_OFF_ON,
 > };

 > static struct gdsc vcodec1_gdsc = {
 >         .gdscr = 0x8b4,
  >        .pd = {
  >               .name = "vcodec1_gdsc",
  >        },
  >       .cxcs = (unsigned int []){ 0x8d0, 0x950 },
  >       .cxc_count = 2,
  >       .flags = HW_CTRL | POLL_CFG_GDSCR,
  >        .pwrsts = PWRSTS_OFF_ON,
  >  };

 > I can't see how this series will work on 845.
Thanks for your review. In [PATCH 1/2] clk: qcom: videocc: Use HW_CTRL_TRIGGER flag for video GDSC's, the gdsc flag will be changed to HW_CTRL_TRIGGER, so the v4 core also needs to use the method of switching GDSC mode like v6.


> ---
> bod

Best Regards,
Renjiang