From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from cstnet.cn (smtp81.cstnet.cn [159.226.251.81]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2477040FD9A for ; Thu, 26 Feb 2026 15:37:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.81 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772120226; cv=none; b=o78pfPjiF/nl/1wtlRNJW2jPv9gEcWsZxCZA/mx/+F5DYwcoWq0k6fgsfeABXhU1RmozREbGggWJ78wG4PciOgdw3qYhsUFPX8aDOXeG5W9cw4CxTsPmeI/KoeIjAjz2lof981jnNAIm4CEgDDaw5B+ZgmEj11PFZy307dEEZxY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772120226; c=relaxed/simple; bh=MO5k7VbWKvDnNeGdHgUBVzXc9qSDg7YseTBRKDexStg=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=joTiZyn0dnqjKqSTNheWJczxHpdQdpQfpHookbTWgiyqBcWayIao++kfKWlLHQbYvG//1Taay5K1vbiPqN4GrJ0B1xPxR5tqL+p/yanpA9bPCdY3bvgjTINUfBjhHZZp1Fvs1BigpEwkN8q8k7SQTOpAT+mUCiMfMisipPiw3bA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from edelgard.fodlan.icenowy.me (unknown [112.94.101.233]) by APP-03 (Coremail) with SMTP id rQCowADHq+KDaKBpWcNdCQ--.3901S2; Thu, 26 Feb 2026 23:36:35 +0800 (CST) Message-ID: <893289430f07a1e89be4932bde0dd3d700366e02.camel@iscas.ac.cn> Subject: Re: [PATCH] drm: verisilicon: DRM_VERISILICON_DC should depend on ARCH_THEAD From: Icenowy Zheng To: Geert Uytterhoeven , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Michal Wilczynski Date: Thu, 26 Feb 2026 23:36:34 +0800 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID:rQCowADHq+KDaKBpWcNdCQ--.3901S2 X-Coremail-Antispam: 1UD129KBjvJXoWxJryUtw4kKF13JFyDAw1fZwb_yoW8Cryxpa 98KF42kFs8Jan8t39rZa4I9FWUCas3JayrGan7Jw13Zrs0yryUX39rCFy5GFyDAwsrJr42 va10g3y7K3W7AFUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUkFb7Iv0xC_tr1lb4IE77IF4wAFF20E14v26r4j6ryUM7CY07I2 0VC2zVCF04k26cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rw A2F7IY1VAKz4vEj48ve4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_JFI_Gr1l84ACjcxK6xII jxv20xvEc7CjxVAFwI0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4 A2jsIEc7CjxVAFwI0_GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IE w4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMc vjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvEwIxGrwCY1x0262kKe7AKxVWUtVW8ZwCF04k2 0xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI 8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41l IxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr0_Gr1lIx AIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2 jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07j8KsUUUUUU= X-CM-SenderInfo: x2kh0wp0lqwv3d6l2u1dvotugofq/ =E5=9C=A8 2026-02-26=E5=9B=9B=E7=9A=84 12:00 +0100=EF=BC=8CGeert Uytterhoev= en=E5=86=99=E9=81=93=EF=BC=9A > Currently, the Verisilicon DC-series display controller driver > supports > only the DC8200 variant in the T-HEAD TH1520 SoC.=C2=A0 Hence restrict th= e > dependency on RISCV to ARCH_THEAD, to prevent asking the user about > this > driver when configuring a kernel without T-HEAD platform support. >=20 > The dependency can be relaxed later, when adding support for > appropriate > SoCs from other vendors. Michal Wilczynski has verified that this driver will work on StarFive JH7110 with some extra glue drivers (but without modification to this driver itself). [1] Although this can be considered as future work and changing to ARCH_THEAD seems okay now. (BTW the hardware identification values is taken from the vendor driver and it should support different variants of DC8200) Thanks Icenowy [1] https://lists.freedesktop.org/archives/dri-devel/2025-November/535442.html >=20 > Fixes: dbf21777caa8b8c8 ("drm: verisilicon: add a driver for > Verisilicon display controllers") > Signed-off-by: Geert Uytterhoeven > --- > =C2=A0drivers/gpu/drm/verisilicon/Kconfig | 2 +- > =C2=A01 file changed, 1 insertion(+), 1 deletion(-) >=20 > diff --git a/drivers/gpu/drm/verisilicon/Kconfig > b/drivers/gpu/drm/verisilicon/Kconfig > index 7cce86ec8603c596..f2edde9e0037ebcd 100644 > --- a/drivers/gpu/drm/verisilicon/Kconfig > +++ b/drivers/gpu/drm/verisilicon/Kconfig > @@ -2,7 +2,7 @@ > =C2=A0config DRM_VERISILICON_DC > =C2=A0 tristate "DRM Support for Verisilicon DC-series display > controllers" > =C2=A0 depends on DRM && COMMON_CLK > - depends on RISCV || COMPILE_TEST > + depends on ARCH_THEAD || COMPILE_TEST > =C2=A0 select DRM_BRIDGE_CONNECTOR > =C2=A0 select DRM_CLIENT_SELECTION > =C2=A0 select DRM_DISPLAY_HELPER