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Wysocki" , Kevin Hilman , Ulf Hansson , Pavel Machek , Len Brown , Greg Kroah-Hartman , Bjorn Andersson , "Konrad Dybcio" , Michael Turquette , Andy Gross , Stephen Boyd , Stanimir Varbanov , "Vikash Garodia" , Bryan O'Donoghue , Mauro Carvalho Chehab , Dmitry Baryshkov , Abel Vesa , Taniya Das CC: , , , , , Jagadeesh Kona , "Imran Shaik" , Ajit Pandey Subject: [PATCH V5 0/5] PM: domains: Add control for switching back and forth to HW control Date: Fri, 15 Mar 2024 16:40:41 +0530 Message-ID: <20240315111046.22136-1-quic_jkona@quicinc.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: 9zRqU3ZyzwdigTryvmfD36Jwfw1omQAC X-Proofpoint-ORIG-GUID: 9zRqU3ZyzwdigTryvmfD36Jwfw1omQAC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-03-14_13,2024-03-13_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 spamscore=0 adultscore=0 mlxscore=0 malwarescore=0 priorityscore=1501 bulkscore=0 impostorscore=0 clxscore=1011 suspectscore=0 mlxlogscore=999 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2403140001 definitions=main-2403150091 This series adds support for dev_pm_genpd_set_hwmode() and dev_pm_genpd_get_hwmode() APIs and support in gdsc provider drivers to register respective callbacks and venus consumer driver example using above API to switch the power domain(GDSC) to HW/SW modes dynamically at runtime. Changes in V5: - Updated 1st patch as per V4 review comments to synchronize the initial HW mode state by invoking ->get_hwmode_dev()callback in genpd_add_device() - With above change, SW cached hwmode will contain correct value initially, and it will be updated everytime mode is changed in set_hwmode, hence updated dev_pm_genpd_get_hwmode() to just return SW cached hwmode in 1st patch - Updated commit text for 1st, 3rd, 4th and 5th patches - Updated 3rd and 5th patches as per review comments received on V4 series - Added R-By tags received in older series to 1st and 2nd patches Previous series: V4: https://lore.kernel.org/all/20240122-gdsc-hwctrl-v4-0-9061e8a7aa07@linaro.org/ V3: https://lore.kernel.org/lkml/20230823114528.3677667-1-abel.vesa@linaro.org/ V2: https://lore.kernel.org/lkml/20230816145741.1472721-1-abel.vesa@linaro.org/ V1: https://lore.kernel.org/all/20230628105652.1670316-1-abel.vesa@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 on V6 Ulf Hansson (1): PM: domains: Allow devices attached to genpd to be managed by HW drivers/clk/qcom/gdsc.c | 37 +++++++++ drivers/clk/qcom/gdsc.h | 1 + drivers/clk/qcom/videocc-sc7280.c | 2 +- drivers/clk/qcom/videocc-sm8250.c | 4 +- .../media/platform/qcom/venus/pm_helpers.c | 39 ++++++---- drivers/pmdomain/core.c | 78 ++++++++++++++++++- include/linux/pm_domain.h | 17 ++++ 7 files changed, 157 insertions(+), 21 deletions(-)