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Sat, 02 Jan 2021 19:56:58 -0800 (PST) From: Yangtao Li To: myungjoo.ham@samsung.com, kyungmin.park@samsung.com, cw00.choi@samsung.com, krzk@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, digetx@gmail.com, thierry.reding@gmail.com, jonathanh@nvidia.com, yuq825@gmail.com, airlied@linux.ie, daniel@ffwll.ch, robdclark@gmail.com, sean@poorly.run, robh@kernel.org, tomeu.vizoso@collabora.com, steven.price@arm.com, alyssa.rosenzweig@collabora.com, stanimir.varbanov@linaro.org, agross@kernel.org, bjorn.andersson@linaro.org, mchehab@kernel.org, lukasz.luba@arm.com, adrian.hunter@intel.com, ulf.hansson@linaro.org, vireshk@kernel.org, nm@ti.com, sboyd@kernel.org, broonie@kernel.org, gregkh@linuxfoundation.org, jirislaby@kernel.org, rjw@rjwysocki.net, jcrouse@codeaurora.org, hoegsberg@google.com, eric@anholt.net, tzimmermann@suse.de, marijn.suijten@somainline.org, gustavoars@kernel.org, emil.velikov@collabora.com, jonathan@marek.ca, akhilpo@codeaurora.org, smasetty@codeaurora.org, airlied@redhat.com, masneyb@onstation.org, kalyan_t@codeaurora.org, tanmay@codeaurora.org, tiny.windzz@gmail.com, ddavenport@chromium.org, jsanka@codeaurora.org, rnayak@codeaurora.org, tongtiangen@huawei.com, miaoqinglang@huawei.com, khsieh@codeaurora.org, abhinavk@codeaurora.org, chandanu@codeaurora.org, groeck@chromium.org, varar@codeaurora.org, mka@chromium.org, harigovi@codeaurora.org, rikard.falkeborn@gmail.com, natechancellor@gmail.com, georgi.djakov@linaro.org, akashast@codeaurora.org, parashar@codeaurora.org, dianders@chromium.org Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org, lima@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org Subject: [PATCH 30/31] PM / devfreq: exynos: convert to use devm_pm_opp_* API Date: Sun, 3 Jan 2021 03:56:39 +0000 Message-Id: <20210103035639.24076-1-tiny.windzz@gmail.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Use devm_pm_opp_* API to simplify code, and remove opp_table from exynos_bus. Signed-off-by: Yangtao Li --- drivers/devfreq/exynos-bus.c | 42 ++++++++---------------------------- 1 file changed, 9 insertions(+), 33 deletions(-) diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c index e689101abc93..51752e5ce980 100644 --- a/drivers/devfreq/exynos-bus.c +++ b/drivers/devfreq/exynos-bus.c @@ -33,7 +33,6 @@ struct exynos_bus { unsigned long curr_freq; - struct opp_table *opp_table; struct clk *clk; unsigned int ratio; }; @@ -159,10 +158,7 @@ static void exynos_bus_exit(struct device *dev) platform_device_unregister(bus->icc_pdev); - dev_pm_opp_of_remove_table(dev); clk_disable_unprepare(bus->clk); - dev_pm_opp_put_regulators(bus->opp_table); - bus->opp_table = NULL; } static void exynos_bus_passive_exit(struct device *dev) @@ -171,7 +167,6 @@ static void exynos_bus_passive_exit(struct device *dev) platform_device_unregister(bus->icc_pdev); - dev_pm_opp_of_remove_table(dev); clk_disable_unprepare(bus->clk); } @@ -183,15 +178,13 @@ static int exynos_bus_parent_parse_of(struct device_node *np, const char *vdd = "vdd"; int i, ret, count, size; - opp_table = dev_pm_opp_set_regulators(dev, &vdd, 1); + opp_table = devm_pm_opp_set_regulators(dev, &vdd, 1); if (IS_ERR(opp_table)) { ret = PTR_ERR(opp_table); dev_err(dev, "failed to set regulators %d\n", ret); return ret; } - bus->opp_table = opp_table; - /* * Get the devfreq-event devices to get the current utilization of * buses. This raw data will be used in devfreq ondemand governor. @@ -199,25 +192,20 @@ static int exynos_bus_parent_parse_of(struct device_node *np, count = devfreq_event_get_edev_count(dev, "devfreq-events"); if (count < 0) { dev_err(dev, "failed to get the count of devfreq-event dev\n"); - ret = count; - goto err_regulator; + return count; } bus->edev_count = count; size = sizeof(*bus->edev) * count; bus->edev = devm_kzalloc(dev, size, GFP_KERNEL); - if (!bus->edev) { - ret = -ENOMEM; - goto err_regulator; - } + if (!bus->edev) + return -ENOMEM; for (i = 0; i < count; i++) { bus->edev[i] = devfreq_event_get_edev_by_phandle(dev, "devfreq-events", i); - if (IS_ERR(bus->edev[i])) { - ret = -EPROBE_DEFER; - goto err_regulator; - } + if (IS_ERR(bus->edev[i])) + return -EPROBE_DEFER; } /* @@ -234,12 +222,6 @@ static int exynos_bus_parent_parse_of(struct device_node *np, bus->ratio = DEFAULT_SATURATION_RATIO; return 0; - -err_regulator: - dev_pm_opp_put_regulators(bus->opp_table); - bus->opp_table = NULL; - - return ret; } static int exynos_bus_parse_of(struct device_node *np, @@ -264,7 +246,7 @@ static int exynos_bus_parse_of(struct device_node *np, } /* Get the freq and voltage from OPP table to scale the bus freq */ - ret = dev_pm_opp_of_add_table(dev); + ret = devm_pm_opp_of_add_table(dev); if (ret < 0) { dev_err(dev, "failed to get OPP table\n"); goto err_clk; @@ -276,15 +258,13 @@ static int exynos_bus_parse_of(struct device_node *np, if (IS_ERR(opp)) { dev_err(dev, "failed to find dev_pm_opp\n"); ret = PTR_ERR(opp); - goto err_opp; + goto err_clk; } bus->curr_freq = dev_pm_opp_get_freq(opp); dev_pm_opp_put(opp); return 0; -err_opp: - dev_pm_opp_of_remove_table(dev); err_clk: clk_disable_unprepare(bus->clk); @@ -425,7 +405,7 @@ static int exynos_bus_probe(struct platform_device *pdev) /* Parse the device-tree to get the resource information */ ret = exynos_bus_parse_of(np, bus); if (ret < 0) - goto err_reg; + return ret; if (passive) ret = exynos_bus_profile_init_passive(bus, profile); @@ -456,11 +436,7 @@ static int exynos_bus_probe(struct platform_device *pdev) return 0; err: - dev_pm_opp_of_remove_table(dev); clk_disable_unprepare(bus->clk); -err_reg: - dev_pm_opp_put_regulators(bus->opp_table); - bus->opp_table = NULL; return ret; }