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(h-178-174-189-39.A498.priv.bahnhof.se. [178.174.189.39]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-393f5f5fcc7sm4569621fa.18.2026.05.08.05.39.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 May 2026 05:39:33 -0700 (PDT) From: Ulf Hansson To: Danilo Krummrich , Saravana Kannan , "Rafael J . Wysocki" , Greg Kroah-Hartman , driver-core@lists.linux.dev, linux-pm@vger.kernel.org Cc: Sudeep Holla , Cristian Marussi , Kevin Hilman , Stephen Boyd , Marek Szyprowski , Bjorn Andersson , Abel Vesa , Peng Fan , Tomi Valkeinen , Maulik Shah , Konrad Dybcio , Thierry Reding , Jonathan Hunter , Geert Uytterhoeven , Dmitry Baryshkov , Ulf Hansson , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 13/13] pmdomain: core: Add a couple of debug prints for sync_state Date: Fri, 8 May 2026 14:39:02 +0200 Message-ID: <20260508123910.114273-14-ulf.hansson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260508123910.114273-1-ulf.hansson@linaro.org> References: <20260508123910.114273-1-ulf.hansson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260508_053936_621392_9743E9B7 X-CRM114-Status: GOOD ( 12.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org To inform the developer of what is happening during sync_state transitions in genpd, let's add a couple of debug prints for it. Signed-off-by: Ulf Hansson --- Changes in v3: - New patch. --- drivers/pmdomain/core.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c index b5d90ddfd698..3d3e0f38815b 100644 --- a/drivers/pmdomain/core.c +++ b/drivers/pmdomain/core.c @@ -2756,6 +2756,9 @@ static void genpd_parse_for_consumer(struct device_node *sup, genpd_lock(genpd); genpd->wait_for_consumer = true; genpd_unlock(genpd); + + pr_debug("%s: wait for consumer %pOF\n", + dev_name(&genpd->dev), con); } mutex_unlock(&gpd_list_lock); @@ -2772,6 +2775,9 @@ static void genpd_queue_sync_state(struct device_node *np) if (genpd->provider == of_fwnode_handle(np)) { genpd_lock(genpd); if (genpd->stay_on && !genpd->wait_for_consumer) { + pr_debug("%s: queuing sync state\n", + dev_name(&genpd->dev)); + genpd->stay_on = false; genpd_queue_power_off_work(genpd); } @@ -3637,6 +3643,9 @@ void of_genpd_sync_state(struct device_node *np) if (genpd->provider == of_fwnode_handle(np)) { genpd_lock(genpd); if (genpd->stay_on) { + pr_debug("%s: sync state\n", + dev_name(&genpd->dev)); + genpd->stay_on = false; genpd_power_off(genpd, false, 0); } @@ -3677,6 +3686,8 @@ static void genpd_provider_sync_state(struct device *dev) case GENPD_SYNC_STATE_SIMPLE: genpd_lock(genpd); if (genpd->stay_on) { + pr_debug("%s: sync state\n", dev_name(&genpd->dev)); + genpd->stay_on = false; genpd_power_off(genpd, false, 0); } -- 2.43.0