From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3E9C734A3A7; Tue, 11 Nov 2025 01:07:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762823234; cv=none; b=rPIvNss4478BKPz0LjQKYNmgvBoZLnK7U6i6t472UcPplj0cbkRs75HQDDSzIYQu1wHD1vstR5TKyP7hxa9Ve0uC+qfeUNHXavkgTrHwZnIp2Hl6zOua1z1vVN/w/Ad3Ou9hCV4FHSHjmevp7yAPV4o6H6Ln7AobCRf19KQQmIE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762823234; c=relaxed/simple; bh=0xCZPVD8EQyt4u83QDzNR+sHIomW2r9LD1byuRG/NpE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=aLjG5mBZPWN+3CFOz+MuZ2IN7yqYX0UpwZugsyEUQld2JbQBVLZ3hBUylg8kc6KX0jl5c4IR53nnubKbVvQIpH/ceNufgYm+Rl/tOU/SyxT5dHHHMgTmOODojKWzWmkxq2kx6XJMZhB9FLYp2wm1gfKlF4r7fjnesYRiSAU+jBQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=vrrsfqE7; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="vrrsfqE7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BD8FFC113D0; Tue, 11 Nov 2025 01:07:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1762823234; bh=0xCZPVD8EQyt4u83QDzNR+sHIomW2r9LD1byuRG/NpE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vrrsfqE7C2+zwpvZBVve1Zr3HlFI3iJjc59SQ8JU+wkMHwe05PEBjvIqvLZU0MQ7M lAyUNW7UcEUcFeI8uFPZOB1ciCEXaKIZGMqVamqSQQpXjhH+PvbFGgIH5qLL4pHNGw 3ckh/BHVoaB9v1uAT2zFsh5gGRmyb7VO3gkmH2fw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Parth Pancholi , Jayesh Choudhary , Devarsh Thakkar , Tomi Valkeinen , Sasha Levin Subject: [PATCH 6.12 202/565] drm/bridge: cdns-dsi: Dont fail on MIPI_DSI_MODE_VIDEO_BURST Date: Tue, 11 Nov 2025 09:40:58 +0900 Message-ID: <20251111004531.470616268@linuxfoundation.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251111004526.816196597@linuxfoundation.org> References: <20251111004526.816196597@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tomi Valkeinen [ Upstream commit 7070f55f294745c5a3c033623b76309f3512be67 ] While the cdns-dsi does not support DSI burst mode, the burst mode is essentially DSI event mode with more versatile clocking and timings. Thus cdns-dsi doesn't need to fail if the DSI peripheral driver requests MIPI_DSI_MODE_VIDEO_BURST. In my particular use case, this allows the use of ti-sn65dsi83 driver. Tested-by: Parth Pancholi Tested-by: Jayesh Choudhary Reviewed-by: Devarsh Thakkar Link: https://lore.kernel.org/r/20250723-cdns-dsi-impro-v5-15-e61cc06074c2@ideasonboard.com Signed-off-by: Tomi Valkeinen Signed-off-by: Sasha Levin --- drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c b/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c index faa0bdfd19370..ddfbb2009c8d3 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c @@ -959,10 +959,6 @@ static int cdns_dsi_attach(struct mipi_dsi_host *host, if (output->dev) return -EBUSY; - /* We do not support burst mode yet. */ - if (dev->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) - return -ENOTSUPP; - /* * The host <-> device link might be described using an OF-graph * representation, in this case we extract the device of_node from -- 2.51.0