linux-kernel - Re: [PATCH] drm/panel: nt37801: select CONFIG_DRM_DISPLAY_DSC

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Message-ID: <542e254b-5feb-456f-98b5-fa1d74418e37@linaro.org>
Date: Fri, 23 May 2025 14:16:22 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Arnd Bergmann <arnd@...nel.org>,
 Neil Armstrong <neil.armstrong@...aro.org>,
 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>,
 Linus Walleij <linus.walleij@...aro.org>
Cc: Arnd Bergmann <arnd@...db.de>, Jessica Zhang <quic_jesszhan@...cinc.com>,
 Dmitry Baryshkov <lumag@...nel.org>, Danila Tikhonov <danila@...xyga.com>,
 Jakob Hauser <jahau@...ketmail.com>, Jerome Brunet <jbrunet@...libre.com>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 Sebastian Reichel <sebastian.reichel@...labora.com>,
 Hironori KIKUCHI <kikuchan98@...il.com>, dri-devel@...ts.freedesktop.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/panel: nt37801: select CONFIG_DRM_DISPLAY_DSC_HELPER

On 23/05/2025 14:11, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> The newly added driver uses the DSC helper module, but does not
> select its Kconfig symbol, so configurations are possible that
> cause a link failure:
> 
> ERROR: modpost: "drm_dsc_pps_payload_pack" [drivers/gpu/drm/panel/panel-novatek-nt37801.ko] undefined!
> 
> Fixes: 4fca6849864d ("drm/panel: Add Novatek NT37801 panel driver")

Indeed, I wrote the driver first without DSC and forgot about it later.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof