linux-kernel - [PATCH v4 0/5] PM: domains: Add control for switching back and forth to HW control

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Message-Id: <20240122-gdsc-hwctrl-v4-0-9061e8a7aa07@linaro.org>
Date: Mon, 22 Jan 2024 10:47:00 +0200
From: Abel Vesa <abel.vesa@...aro.org>
To: "Rafael J. Wysocki" <rafael@...nel.org>, 
 Kevin Hilman <khilman@...nel.org>, Ulf Hansson <ulf.hansson@...aro.org>, 
 Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Bjorn Andersson <andersson@...nel.org>, Andy Gross <agross@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, 
 Stanimir Varbanov <stanimir.k.varbanov@...il.com>, 
 Vikash Garodia <quic_vgarodia@...cinc.com>, 
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Taniya Das <quic_tdas@...cinc.com>, Jagadeesh Kona <quic_jkona@...cinc.com>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org, 
 linux-media@...r.kernel.org, Abel Vesa <abel.vesa@...aro.org>
Subject: [PATCH v4 0/5] PM: domains: Add control for switching back and
 forth to HW control

Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
---
Changes in v4:
- Re-worded 1st patch commit message, as per Bjorn's suggestion, and added
  Dmitry's R-b tag
- Added Bjorn's and Dmitry's R-b tags to the 2nd patch
- Re-worded 3rd patch commit message, to better explain the HW_CTRL_TRIGGER flag.
- Added mode transition delay when setting mode for GDSC
- Added status polling if GDSSC is enabled when transitioning from HW to SW
- Re-worded 4th patch commit message to better explain why the
  HW_CTRL_TRIGGER needs to be used instead
- Drop changes to SC7180, SDM845 and SM8550 video CC drivers, as only
  SC7280 and SM8250 have been tested so far. More platforms (with v6 venus)
  will be added eventually.
- Call genpd set_hwmode API only for v6 and dropped the vcodec_pmdomains_hwctrl.
- Re-worded 5th patch commit message accordingly. 
- Link to v3:
  https://lore.kernel.org/r/20231101-gdsc-hwctrl-v3-0-0740ae6b2b04@linaro.org/

---
Abel Vesa (1):
      PM: domains: Add the domain HW-managed mode to the summary

Jagadeesh Kona (3):
      clk: qcom: gdsc: Add set and get hwmode callbacks to switch GDSC mode
      clk: qcom: Use HW_CTRL_TRIGGER flag to switch video GDSC to HW mode
      venus: pm_helpers: Use dev_pm_genpd_set_hwmode to switch GDSC mode

Ulf Hansson (1):
      PM: domains: Allow devices attached to genpd to be managed by HW

 drivers/clk/qcom/gdsc.c                        | 54 +++++++++++++++++
 drivers/clk/qcom/gdsc.h                        |  1 +
 drivers/clk/qcom/videocc-sc7280.c              |  2 +-
 drivers/clk/qcom/videocc-sm8250.c              |  4 +-
 drivers/media/platform/qcom/venus/pm_helpers.c | 23 +++----
 drivers/pmdomain/core.c                        | 83 +++++++++++++++++++++++++-
 include/linux/pm_domain.h                      | 17 ++++++
 7 files changed, 169 insertions(+), 15 deletions(-)
---
base-commit: 319fbd8fc6d339e0a1c7b067eed870c518a13a02
change-id: 20231101-gdsc-hwctrl-13f01ea60cbd

Best regards,
-- 
Abel Vesa <abel.vesa@...aro.org>