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Thu, 19 Sep 2019 14:23:23 +0000 (GMT) From: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= To: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= , cw00.choi@samsung.com, myungjoo.ham@samsung.com, inki.dae@samsung.com, sw0312.kim@samsung.com, georgi.djakov@linaro.org, leonard.crestez@nxp.com, m.szyprowski@samsung.com, b.zolnierkie@samsung.com, krzk@kernel.org Subject: [RFC PATCH v2 04/11] devfreq: exynos-bus: Clean up code Date: Thu, 19 Sep 2019 16:22:29 +0200 Message-Id: <20190919142236.4071-5-a.swigon@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190919142236.4071-1-a.swigon@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA01Sa0hTYRju29m5KB05HgVfNCoHQRe8FAlfV5L6cSKKgkgwhq08XtBN2VHL IlNHZuYllEpdmZKablk6L9kwsbkmYThCMTHNqEQqVGKzC1jWPOvy73mf93me930/PobgJ8lg JlmXIep1mlQV5avscnwfClOXGdSRebM8tjk6aTxVcxHhtsoHJH7pniHxbfsQiUcW5il847GF wuVTV5XY6WylcdPkZxJb3o2SeNh6k8KuEjvClc5eBW6xT9L4VV4ThSsrPlB7/AWL6TIlTIz2 UMLUlQGF0F5/QWib61YIT+Z6FEJphwkJLsvqw0ys7854MTU5S9RH7D7hm9Qya0fpXzacsQzG 5qLJ0CLkwwC3FV4V/1QWIV+G55oQtLcuegs3AvOzW6RcuBDU2T5SRYhZtvQtaGT+LoKZ1uuK vw6Dow55cikuGsqvvaE9jUDOjqCidn45l+DqFVBqdBIeVQC3B9xDbtoTq+TWgWHwgIdmOQzX Lt+h5QXXgLm1b1nuw20Dd+9tpazxh2dV75cx8Vtj6DQSnnzgLjJQavpByuZ98GKpxhsUAB8H Orx4FQxWFCtlLMH0oylSNucisDTaCbmxA/oHXpCe5QhuAzywRsh0NIyMVXufwg/GZv3lHfyg vOsGIdMsFBbwMlSBtcpPNgLkm0e92QKUDQ/RV1Fo9X/HVP93TPW/sbWIMKEgMVPSJorSFp14 OlzSaKVMXWL4qTStBf3+dIM/B9zdyLp40oY4BqlWsmtPG9Q8qcmSsrU2BAyhCmRvRuWreTZe k31W1KfF6TNTRcmGQhilKog9t+LNcZ5L1GSIKaKYLur/dBWMT3AuCuloNLiilnadt+tiTAnT E0tHnK/pvq0b128aN/P9/k8jChbb7o7npG1v8HOrwhvesfe7Jo4FGC+whWeev/4UY1wsiAmw muMKDx2913IwlO0NnOfDmhdqxtd1Zn37EH/JkuN2jAa+bRb3qlNyH+6KpF1fE4xZVVJOzf6C lbaSkXqVUkrSbN5I6CXNL+XYu0BwAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrEIsWRmVeSWpSXmKPExsVy+t/xu7ox/c2xBn/mC1ocOraV3eL+vFZG i40z1rNaXP/ynNVi/pFzrBZXvr5ns5i+dxObxaT7E1gszp/fwG6x4u5HVotNj6+xWlzeNYfN 4nPvEUaLGef3MVmsPXKX3eJ24wo2ixmTX7I5CHpsWtXJ5nHn2h42j/vdx5k8Ni+p99j4bgeT x8F3e5g8+rasYvT4vEkugCNKz6Yov7QkVSEjv7jEVina0MJIz9DSQs/IxFLP0Ng81srIVEnf ziYlNSezLLVI3y5BL2Pt2yOMBd80KzadjmpgvKvYxcjBISFgInHga2IXIxeHkMBSRonT666z dDFyAsUlJD6uv8EKYQtL/LnWxQZR9IlR4sybZ2BFbAKOEpOmPmAHSYgInGKU2Lr8HFgVs8AG JonlT1+CtQsLOEh8OfeFHWQdi4CqRPNpb5Awr4CFxNTOxewQG+QlVm84wAxicwpYSnzZNx9s gRBQzdzHcxkh6gUlTs58wgIyhllAXWL9PCGQMDNQa/PW2cwTGAVnIamahVA1C0nVAkbmVYwi qaXFuem5xUZ6xYm5xaV56XrJ+bmbGIHxu+3Yzy07GLveBR9iFOBgVOLhVShvjhViTSwrrsw9 xCjBwawkwjvHtClWiDclsbIqtSg/vqg0J7X4EKMp0GcTmaVEk/OBqSWvJN7Q1NDcwtLQ3Njc 2MxCSZy3Q+BgjJBAemJJanZqakFqEUwfEwenVAPjhnNZTNuXh+enLzm47Z7i+Yc1Rw++YH23 Y7Ox5tmchvenxZ+zvKhkvK91ulBq9TaxPrX+AwsufBSyu1S+RG/nNHWOE97Gx9r0lk5zNAuK +iF4tuG+Tu43Rf6JTB8elH0QNr3nqSB5Z8Ga+o0xN3acv6Xd6/IkR2bvVKlNtpEexzenNPN3 BXSYK7EUZyQaajEXFScCABrO2lX1AgAA X-CMS-MailID: 20190919142324eucas1p1638cec2aafbfcaf03cfdfa7d0189143a X-Msg-Generator: CA X-RootMTR: 20190919142324eucas1p1638cec2aafbfcaf03cfdfa7d0189143a X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190919142324eucas1p1638cec2aafbfcaf03cfdfa7d0189143a References: <20190919142236.4071-1-a.swigon@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org From: Artur Świgoń This patch adds minor improvements to the exynos-bus driver. Signed-off-by: Artur Świgoń Reviewed-by: Krzysztof Kozlowski --- drivers/devfreq/exynos-bus.c | 66 ++++++++++++++---------------------- 1 file changed, 25 insertions(+), 41 deletions(-) diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c index 60ad4319fd80..8d44810cac69 100644 --- a/drivers/devfreq/exynos-bus.c +++ b/drivers/devfreq/exynos-bus.c @@ -15,11 +15,10 @@ #include #include #include -#include +#include #include #include #include -#include #define DEFAULT_SATURATION_RATIO 40 @@ -178,7 +177,7 @@ static int exynos_bus_parent_parse_of(struct device_node *np, struct device *dev = bus->dev; struct opp_table *opp_table; const char *vdd = "vdd"; - int i, ret, count, size; + int i, ret, count; opp_table = dev_pm_opp_set_regulators(dev, &vdd, 1); if (IS_ERR(opp_table)) { @@ -201,8 +200,7 @@ static int exynos_bus_parent_parse_of(struct device_node *np, } bus->edev_count = count; - size = sizeof(*bus->edev) * count; - bus->edev = devm_kzalloc(dev, size, GFP_KERNEL); + bus->edev = devm_kcalloc(dev, count, sizeof(*bus->edev), GFP_KERNEL); if (!bus->edev) { ret = -ENOMEM; goto err_regulator; @@ -301,10 +299,9 @@ static int exynos_bus_profile_init(struct exynos_bus *bus, profile->exit = exynos_bus_exit; ondemand_data = devm_kzalloc(dev, sizeof(*ondemand_data), GFP_KERNEL); - if (!ondemand_data) { - ret = -ENOMEM; - goto err; - } + if (!ondemand_data) + return -ENOMEM; + ondemand_data->upthreshold = 40; ondemand_data->downdifferential = 5; @@ -314,8 +311,7 @@ static int exynos_bus_profile_init(struct exynos_bus *bus, ondemand_data); if (IS_ERR(bus->devfreq)) { dev_err(dev, "failed to add devfreq device\n"); - ret = PTR_ERR(bus->devfreq); - goto err; + return PTR_ERR(bus->devfreq); } /* @@ -325,16 +321,13 @@ static int exynos_bus_profile_init(struct exynos_bus *bus, ret = exynos_bus_enable_edev(bus); if (ret < 0) { dev_err(dev, "failed to enable devfreq-event devices\n"); - goto err; + return ret; } ret = exynos_bus_set_event(bus); - if (ret < 0) { + if (ret < 0) dev_err(dev, "failed to set event to devfreq-event devices\n"); - goto err; - } -err: return ret; } @@ -344,7 +337,6 @@ static int exynos_bus_profile_init_passive(struct exynos_bus *bus, struct device *dev = bus->dev; struct devfreq_passive_data *passive_data; struct devfreq *parent_devfreq; - int ret = 0; /* Initialize the struct profile and governor data for passive device */ profile->target = exynos_bus_target; @@ -352,30 +344,26 @@ static int exynos_bus_profile_init_passive(struct exynos_bus *bus, /* Get the instance of parent devfreq device */ parent_devfreq = devfreq_get_devfreq_by_phandle(dev, 0); - if (IS_ERR(parent_devfreq)) { - ret = -EPROBE_DEFER; - goto err; - } + if (IS_ERR(parent_devfreq)) + return -EPROBE_DEFER; passive_data = devm_kzalloc(dev, sizeof(*passive_data), GFP_KERNEL); - if (!passive_data) { - ret = -ENOMEM; - goto err; - } + if (!passive_data) + return -ENOMEM; + passive_data->parent = parent_devfreq; /* Add devfreq device for exynos bus with passive governor */ - bus->devfreq = devm_devfreq_add_device(dev, profile, DEVFREQ_GOV_PASSIVE, + bus->devfreq = devm_devfreq_add_device(dev, profile, + DEVFREQ_GOV_PASSIVE, passive_data); if (IS_ERR(bus->devfreq)) { dev_err(dev, "failed to add devfreq dev with passive governor\n"); - ret = PTR_ERR(bus->devfreq); - goto err; + return PTR_ERR(bus->devfreq); } -err: - return ret; + return 0; } static int exynos_bus_probe(struct platform_device *pdev) @@ -393,18 +381,18 @@ static int exynos_bus_probe(struct platform_device *pdev) return -EINVAL; } - bus = devm_kzalloc(&pdev->dev, sizeof(*bus), GFP_KERNEL); + bus = devm_kzalloc(dev, sizeof(*bus), GFP_KERNEL); if (!bus) return -ENOMEM; mutex_init(&bus->lock); - bus->dev = &pdev->dev; + bus->dev = dev; platform_set_drvdata(pdev, bus); profile = devm_kzalloc(dev, sizeof(*profile), GFP_KERNEL); if (!profile) return -ENOMEM; - node = of_parse_phandle(dev->of_node, "devfreq", 0); + node = of_parse_phandle(np, "devfreq", 0); if (node) { of_node_put(node); passive = true; @@ -461,12 +449,10 @@ static int exynos_bus_resume(struct device *dev) int ret; ret = exynos_bus_enable_edev(bus); - if (ret < 0) { + if (ret < 0) dev_err(dev, "failed to enable the devfreq-event devices\n"); - return ret; - } - return 0; + return ret; } static int exynos_bus_suspend(struct device *dev) @@ -475,12 +461,10 @@ static int exynos_bus_suspend(struct device *dev) int ret; ret = exynos_bus_disable_edev(bus); - if (ret < 0) { + if (ret < 0) dev_err(dev, "failed to disable the devfreq-event devices\n"); - return ret; - } - return 0; + return ret; } #endif