From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 36B17FD8FCC for ; Thu, 26 Feb 2026 15:36:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5264A10E052; Thu, 26 Feb 2026 15:36:54 +0000 (UTC) Received: from cstnet.cn (smtp81.cstnet.cn [159.226.251.81]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6FF3410E052 for ; Thu, 26 Feb 2026 15:36:52 +0000 (UTC) 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 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-Originating-IP: [112.94.101.233] X-CM-SenderInfo: x2kh0wp0lqwv3d6l2u1dvotugofq/ X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" =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