linux-kernel - Re: [PATCH 2/2] drm/bridge: fsl-ldb: make warning message more informative

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Message-ID: <Z8nizEsd0QbYgsI/@lizhi-Precision-Tower-5810>
Date: Thu, 6 Mar 2025 13:00:44 -0500
From: Frank Li <Frank.li@....com>
To: Luca Ceresoli <luca.ceresoli@...tlin.com>
Cc: Liu Ying <victor.liu@....com>, 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>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	dri-devel@...ts.freedesktop.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] drm/bridge: fsl-ldb: make warning message more
 informative

On Thu, Mar 06, 2025 at 06:28:41PM +0100, Luca Ceresoli wrote:
> This warning notifies a clock was set to an inaccurate value. Modify the
> string to also show the clock name.
>
> While doing that also rewrap the entire function call.
>
> Signed-off-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
> ---
>  drivers/gpu/drm/bridge/fsl-ldb.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/fsl-ldb.c b/drivers/gpu/drm/bridge/fsl-ldb.c
> index 0fc8a14fd80062248a43b8b93272101a7ca6158a..c7c899a9644bb827845fb3fe96a9695d79a91474 100644
> --- a/drivers/gpu/drm/bridge/fsl-ldb.c
> +++ b/drivers/gpu/drm/bridge/fsl-ldb.c
> @@ -181,9 +181,9 @@ static void fsl_ldb_atomic_enable(struct drm_bridge *bridge,
>
>  	configured_link_freq = clk_get_rate(fsl_ldb->clk);
>  	if (configured_link_freq != requested_link_freq)
> -		dev_warn(fsl_ldb->dev, "Configured LDB clock (%lu Hz) does not match requested LVDS clock: %lu Hz\n",
> -			 configured_link_freq,
> -			 requested_link_freq);
> +		dev_warn(fsl_ldb->dev,
> +			 "Configured %pC clock (%lu Hz) does not match requested LVDS clock: %lu Hz\n",
> +			 fsl_ldb->clk, configured_link_freq, requested_link_freq);

commit message said show clock name, but %p is for pointer value. Are sure
it show clock name?

Frank

>
>  	clk_prepare_enable(fsl_ldb->clk);
>
>
> --
> 2.48.1
>