linux-kernel - Re: [PATCH] drm: Use of_property_present() for testing DT property presence

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Date:   Mon, 13 Mar 2023 12:04:44 +0800
From:   Liu Ying <victor.liu@....com>
To:     Rob Herring <robh@...nel.org>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Robert Foss <rfoss@...nel.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, Chen-Yu Tsai <wens@...e.org>,
        Samuel Holland <samuel@...lland.org>,
        Emma Anholt <emma@...olt.net>
Cc:     devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org,
        linux-sunxi@...ts.linux.dev
Subject: Re: [PATCH] drm: Use of_property_present() for testing DT property
 presence

On Fri, 2023-03-10 at 08:47 -0600, Rob Herring wrote:
> It is preferred to use typed property access functions (i.e.
> of_property_read_<type> functions) rather than low-level
> of_get_property/of_find_property functions for reading properties. As
> part of this, convert of_get_property/of_find_property calls to the
> recently added of_property_present() helper when we just want to test
> for presence of a property and nothing more.
> 
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
>  drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c | 2 +-

Reviewed-by: Liu Ying <victor.liu@....com> # i.MX bridge

>  drivers/gpu/drm/drm_mipi_dsi.c                  | 2 +-
>  drivers/gpu/drm/msm/adreno/adreno_gpu.c         | 2 +-
>  drivers/gpu/drm/sun4i/sun4i_backend.c           | 2 +-
>  drivers/gpu/drm/sun4i/sun8i_mixer.c             | 2 +-
>  drivers/gpu/drm/vc4/vc4_hdmi.c                  | 2 +-
>  6 files changed, 6 insertions(+), 6 deletions(-)