linux-kernel - Re: [PATCH v4 11/27] drm/bridge: ti-sn65dsi86: Add local var for "dev" to simplify probe

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Message-ID: <YILb0Q79huUgGgd1@builder.lan>
Date:   Fri, 23 Apr 2021 09:38:09 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Douglas Anderson <dianders@...omium.org>
Cc:     Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Sam Ravnborg <sam@...nborg.org>, Wolfram Sang <wsa@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>, robdclark@...omium.org,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Stanislav Lisovskiy <stanislav.lisovskiy@...el.com>,
        Steev Klimaszewski <steev@...i.org>,
        linux-arm-msm@...r.kernel.org, Linus W <linus.walleij@...aro.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Robert Foss <robert.foss@...aro.org>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 11/27] drm/bridge: ti-sn65dsi86: Add local var for
 "dev" to simplify probe

On Fri 16 Apr 17:39 CDT 2021, Douglas Anderson wrote:

> Tiny cleanup for probe so we don't keep having to specify
> "&client->dev" or "pdata->dev". No functional changes intended.
> 

Nice

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>

Regards,
Bjorn

> Signed-off-by: Douglas Anderson <dianders@...omium.org>
> ---
> 
> (no changes since v1)
> 
>  drivers/gpu/drm/bridge/ti-sn65dsi86.c | 26 ++++++++++++--------------
>  1 file changed, 12 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> index 0c6aa99ddc99..2cbf619fbd27 100644
> --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> @@ -1226,6 +1226,7 @@ static void ti_sn_bridge_parse_lanes(struct ti_sn65dsi86 *pdata,
>  static int ti_sn65dsi86_probe(struct i2c_client *client,
>  			      const struct i2c_device_id *id)
>  {
> +	struct device *dev = &client->dev;
>  	struct ti_sn65dsi86 *pdata;
>  	int ret;
>  
> @@ -1234,8 +1235,7 @@ static int ti_sn65dsi86_probe(struct i2c_client *client,
>  		return -ENODEV;
>  	}
>  
> -	pdata = devm_kzalloc(&client->dev, sizeof(struct ti_sn65dsi86),
> -			     GFP_KERNEL);
> +	pdata = devm_kzalloc(dev, sizeof(struct ti_sn65dsi86), GFP_KERNEL);
>  	if (!pdata)
>  		return -ENOMEM;
>  
> @@ -1246,26 +1246,24 @@ static int ti_sn65dsi86_probe(struct i2c_client *client,
>  		return PTR_ERR(pdata->regmap);
>  	}
>  
> -	pdata->dev = &client->dev;
> +	pdata->dev = dev;
>  
> -	ret = drm_of_find_panel_or_bridge(pdata->dev->of_node, 1, 0,
> -					  &pdata->panel, NULL);
> +	ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &pdata->panel, NULL);
>  	if (ret) {
>  		DRM_ERROR("could not find any panel node\n");
>  		return ret;
>  	}
>  
> -	dev_set_drvdata(&client->dev, pdata);
> +	dev_set_drvdata(dev, pdata);
>  
> -	pdata->enable_gpio = devm_gpiod_get(pdata->dev, "enable",
> -					    GPIOD_OUT_LOW);
> +	pdata->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
>  	if (IS_ERR(pdata->enable_gpio)) {
>  		DRM_ERROR("failed to get enable gpio from DT\n");
>  		ret = PTR_ERR(pdata->enable_gpio);
>  		return ret;
>  	}
>  
> -	ti_sn_bridge_parse_lanes(pdata, client->dev.of_node);
> +	ti_sn_bridge_parse_lanes(pdata, dev->of_node);
>  
>  	ret = ti_sn65dsi86_parse_regulators(pdata);
>  	if (ret) {
> @@ -1273,7 +1271,7 @@ static int ti_sn65dsi86_probe(struct i2c_client *client,
>  		return ret;
>  	}
>  
> -	pdata->refclk = devm_clk_get_optional(pdata->dev, "refclk");
> +	pdata->refclk = devm_clk_get_optional(dev, "refclk");
>  	if (IS_ERR(pdata->refclk))
>  		return PTR_ERR(pdata->refclk);
>  
> @@ -1281,23 +1279,23 @@ static int ti_sn65dsi86_probe(struct i2c_client *client,
>  	if (ret)
>  		return ret;
>  
> -	pm_runtime_enable(pdata->dev);
> +	pm_runtime_enable(dev);
>  
>  	ret = ti_sn_setup_gpio_controller(pdata);
>  	if (ret) {
> -		pm_runtime_disable(pdata->dev);
> +		pm_runtime_disable(dev);
>  		return ret;
>  	}
>  
>  	i2c_set_clientdata(client, pdata);
>  
>  	pdata->aux.name = "ti-sn65dsi86-aux";
> -	pdata->aux.dev = pdata->dev;
> +	pdata->aux.dev = dev;
>  	pdata->aux.transfer = ti_sn_aux_transfer;
>  	drm_dp_aux_init(&pdata->aux);
>  
>  	pdata->bridge.funcs = &ti_sn_bridge_funcs;
> -	pdata->bridge.of_node = client->dev.of_node;
> +	pdata->bridge.of_node = dev->of_node;
>  
>  	drm_bridge_add(&pdata->bridge);
>  
> -- 
> 2.31.1.368.gbe11c130af-goog
>