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Fri, 04 Jul 2025 06:51:10 -0700 (PDT) Message-ID: <930cf8e2-5716-4a36-8238-e573876db869@tuxon.dev> Date: Fri, 4 Jul 2025 16:51:06 +0300 Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 0/3] PM: domains: Detach on device_unbind_cleanup() To: Ulf Hansson , rafael@kernel.org Cc: linux@armlinux.org.uk, gregkh@linuxfoundation.org, david.m.ertman@intel.com, ira.weiny@intel.com, leon@kernel.org, dakr@kernel.org, len.brown@intel.com, pavel@kernel.org, andersson@kernel.org, mturquette@baylibre.com, sboyd@kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, wsa+renesas@sang-engineering.com, mathieu.poirier@linaro.org, vkoul@kernel.org, yung-chuan.liao@linux.intel.com, pierre-louis.bossart@linux.dev, broonie@kernel.org, robh@kernel.org, jirislaby@kernel.org, saravanak@google.com, jic23@kernel.org, dmitry.torokhov@gmail.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-i2c@vger.kernel.org, linux-mmc@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-sound@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, bhelgaas@google.com, geert@linux-m68k.org, linux-iio@vger.kernel.org, linux-renesas-soc@vger.kernel.org, fabrizio.castro.jz@renesas.com, Claudiu Beznea References: <20250703112708.1621607-1-claudiu.beznea.uj@bp.renesas.com> From: Claudiu Beznea Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi, Ulf, On 04.07.2025 14:15, Ulf Hansson wrote: > On Thu, 3 Jul 2025 at 13:27, Claudiu wrote: >> >> From: Claudiu Beznea >> >> Hi, >> >> Series drops the dev_pm_domain_detach() from platform bus remove and >> adds it in device_unbind_cleanup() to avoid runtime resumming the device >> after it was detached from its PM domain. >> >> Please provide your feedback. >> >> Thank you, >> Claudiu >> >> Changes in v5: >> - added PD_FLAG_ATTACH_POWER_ON, PD_FLAG_DETACH_POWER_OFF; >> due to this a new patch was introduced >> "PM: domains: Add flags to specify power on attach/detach" >> >> Changes in v4: >> - added a flag in dev_pm_info that is saved in dev_pm_domain_attach() >> and used in device_unbind_cleanup() >> >> Changes in v3: >> - add devm_pm_domain_attach() >> >> Changes in v2: >> - dropped the devres group open/close approach and use >> devm_pm_domain_attach() >> - adjusted patch description to reflect the new approach >> >> >> Claudiu Beznea (3): >> PM: domains: Add flags to specify power on attach/detach >> PM: domains: Detach on device_unbind_cleanup() >> driver core: platform: Drop dev_pm_domain_detach() call >> >> drivers/amba/bus.c | 4 ++-- >> drivers/base/auxiliary.c | 2 +- >> drivers/base/dd.c | 2 ++ >> drivers/base/platform.c | 9 +++------ >> drivers/base/power/common.c | 9 ++++++--- >> drivers/clk/qcom/apcs-sdx55.c | 2 +- >> drivers/gpu/drm/display/drm_dp_aux_bus.c | 2 +- >> drivers/i2c/i2c-core-base.c | 2 +- >> drivers/mmc/core/sdio_bus.c | 2 +- >> drivers/rpmsg/rpmsg_core.c | 2 +- >> drivers/soundwire/bus_type.c | 2 +- >> drivers/spi/spi.c | 2 +- >> drivers/tty/serdev/core.c | 2 +- >> include/linux/pm.h | 1 + >> include/linux/pm_domain.h | 10 ++++++++-- >> 15 files changed, 31 insertions(+), 22 deletions(-) >> >> -- >> 2.43.0 >> > > The series looks good to me, please add: > Reviewed-by: Ulf Hansson > > Rafael, do you intend to pick this via your tree? > > Another note, the similar thing that is being done in patch3 from the > platform bus, is needed for other buses too (at least the amba bus for > sure). Claudiu, are you planning to do that as a step on top - or are > you expecting others to help out? My plan was to take care of it once the approach here (or something similar, if any) will end up in a release. Thank you, Claudiu > > Kind regards > Uffe