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[80.251.214.228]) by smtp.gmail.com with ESMTPSA id om8sm589619pjb.12.2021.11.08.18.26.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Nov 2021 18:26:14 -0800 (PST) From: Shawn Guo To: Stephen Boyd Cc: Bjorn Andersson , Loic Poulain , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Shawn Guo Subject: [PATCH 3/3] clk: qcom: smd-rpm: Add .is_prepared hook Date: Tue, 9 Nov 2021 10:25:58 +0800 Message-Id: <20211109022558.14529-4-shawn.guo@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211109022558.14529-1-shawn.guo@linaro.org> References: <20211109022558.14529-1-shawn.guo@linaro.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The RPM clocks are enabled/disabled through clk framework prepare/unprepare hooks. Without .is_prepared hook, those unused RPM clocks will not be disabled by core function clk_unprepare_unused_subtree(), because clk_core_is_prepared() always returns 0. Add .is_prepared hook to clk_ops and return the clock prepare (enable) state, so that those unused RPM clocks can be disabled by clk framework. Signed-off-by: Shawn Guo --- drivers/clk/qcom/clk-smd-rpm.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/clk/qcom/clk-smd-rpm.c b/drivers/clk/qcom/clk-smd-rpm.c index f8be58121bd6..c8f058720e66 100644 --- a/drivers/clk/qcom/clk-smd-rpm.c +++ b/drivers/clk/qcom/clk-smd-rpm.c @@ -409,6 +409,13 @@ static int clk_smd_rpm_is_enabled(struct clk_hw *hw) return r->enabled; } +static int clk_smd_rpm_is_prepared(struct clk_hw *hw) +{ + struct clk_smd_rpm *r = to_clk_smd_rpm(hw); + + return r->enabled; +} + static const struct clk_ops clk_smd_rpm_ops = { .prepare = clk_smd_rpm_prepare, .unprepare = clk_smd_rpm_unprepare, @@ -416,6 +423,7 @@ static const struct clk_ops clk_smd_rpm_ops = { .round_rate = clk_smd_rpm_round_rate, .recalc_rate = clk_smd_rpm_recalc_rate, .is_enabled = clk_smd_rpm_is_enabled, + .is_prepared = clk_smd_rpm_is_prepared, }; static const struct clk_ops clk_smd_rpm_branch_ops = { @@ -423,6 +431,7 @@ static const struct clk_ops clk_smd_rpm_branch_ops = { .unprepare = clk_smd_rpm_unprepare, .recalc_rate = clk_smd_rpm_recalc_rate, .is_enabled = clk_smd_rpm_is_enabled, + .is_prepared = clk_smd_rpm_is_prepared, }; DEFINE_CLK_SMD_RPM(msm8916, pcnoc_clk, pcnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 0); -- 2.17.1