From: Krzysztof Kozlowski <krzk@kernel.org> To: Sakari Ailus <sakari.ailus@linux.intel.com>, Mauro Carvalho Chehab <mchehab@kernel.org>, Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzk@kernel.org>, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v7 3/4] media: i2c: imx258: simplify getting state container Date: Wed, 27 Jan 2021 18:46:34 +0100 [thread overview] Message-ID: <20210127174635.3596-3-krzk@kernel.org> (raw) In-Reply-To: <20210127174635.3596-1-krzk@kernel.org> The pointer to 'struct v4l2_subdev' is stored in drvdata via v4l2_i2c_subdev_init() so there is no point of a dance like: struct i2c_client *client = to_i2c_client(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); This allows to remove local variable 'client' and few pointer dereferences. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> --- Changes since v3: 1. None Changes since v2: 1. New patch --- drivers/media/i2c/imx258.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index ba7f29622974..505981e02cff 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -1018,8 +1018,7 @@ static int imx258_set_stream(struct v4l2_subdev *sd, int enable) static int __maybe_unused imx258_suspend(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx258 *imx258 = to_imx258(sd); if (imx258->streaming) @@ -1030,8 +1029,7 @@ static int __maybe_unused imx258_suspend(struct device *dev) static int __maybe_unused imx258_resume(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx258 *imx258 = to_imx258(sd); int ret; -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Krzysztof Kozlowski <krzk@kernel.org> To: Sakari Ailus <sakari.ailus@linux.intel.com>, Mauro Carvalho Chehab <mchehab@kernel.org>, Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzk@kernel.org>, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v7 3/4] media: i2c: imx258: simplify getting state container Date: Wed, 27 Jan 2021 18:46:34 +0100 [thread overview] Message-ID: <20210127174635.3596-3-krzk@kernel.org> (raw) In-Reply-To: <20210127174635.3596-1-krzk@kernel.org> The pointer to 'struct v4l2_subdev' is stored in drvdata via v4l2_i2c_subdev_init() so there is no point of a dance like: struct i2c_client *client = to_i2c_client(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); This allows to remove local variable 'client' and few pointer dereferences. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> --- Changes since v3: 1. None Changes since v2: 1. New patch --- drivers/media/i2c/imx258.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index ba7f29622974..505981e02cff 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -1018,8 +1018,7 @@ static int imx258_set_stream(struct v4l2_subdev *sd, int enable) static int __maybe_unused imx258_suspend(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx258 *imx258 = to_imx258(sd); if (imx258->streaming) @@ -1030,8 +1029,7 @@ static int __maybe_unused imx258_suspend(struct device *dev) static int __maybe_unused imx258_resume(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx258 *imx258 = to_imx258(sd); int ret; -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-01-27 17:51 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-27 17:46 [PATCH v7 1/4] dt-bindings: media: imx258: add bindings for IMX258 sensor Krzysztof Kozlowski 2021-01-27 17:46 ` Krzysztof Kozlowski 2021-01-27 17:46 ` [PATCH v7 2/4] media: i2c: imx258: add support for binding via device tree Krzysztof Kozlowski 2021-01-27 17:46 ` Krzysztof Kozlowski 2021-01-27 17:46 ` Krzysztof Kozlowski [this message] 2021-01-27 17:46 ` [PATCH v7 3/4] media: i2c: imx258: simplify getting state container Krzysztof Kozlowski 2021-01-27 17:46 ` [PATCH v7 4/4] media: i2c: imx258: get clock from device properties and enable it via runtime PM Krzysztof Kozlowski 2021-01-27 17:46 ` Krzysztof Kozlowski
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