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 D026E305E3A; Tue, 11 Nov 2025 01:09:35 +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=1762823375; cv=none; b=eSmHBO51Fk3vkIKT+nq7BJgN9c509D67nZ6eSgzFq0t7IyKBlZGGwEUgKByGFn7MDaZ9Lu3S0Xe6UHlTvpn2kIzLftebWtSeipAs25/pv4jQmAAkohaASRuXMNLWc5bziIMlRwq4h31u3YaoioUuh35Z8HNoOx2lG2hGPmTdioc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762823375; c=relaxed/simple; bh=K4WAVLN7q5rUazgtzb+eX1PwRbikDXtH8nl2umbM/8E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=b2wKSTUnUW/BcuA2vybJJZCKXdP7u4FDHMHM9iM1dARg06Ux0QEwVcp889I0zOsDlaDuOi08+l/r2LRPHnAzVCUEB+tzEV4HPixS1RuRppHSkwKxPXlhIQFdH5n3u5CdTDSrbk26OBaLjuxX3xkRyY1efdlb+0Ykg12EP/VS85U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=UFejr8YZ; 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="UFejr8YZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 70BE4C113D0; Tue, 11 Nov 2025 01:09:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1762823375; bh=K4WAVLN7q5rUazgtzb+eX1PwRbikDXtH8nl2umbM/8E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UFejr8YZ7Q3s3gAW7A35+/93mAwi8FzSf7e5NrgjIL/iKM8AoaNE6celsK1+h/Tnx 4Z4KQEvqfjyGXONqgYpp3VBo54Tik1F2c/RI+V4Y31ErDpCGljWRO415Q+N1Ygnef/ f1wc+UI7QeNOqMa4qLRDkREkf55wy7MKwLhDMQmg= 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 6.17 286/849] drm/bridge: cdns-dsi: Dont fail on MIPI_DSI_MODE_VIDEO_BURST Date: Tue, 11 Nov 2025 09:37:36 +0900 Message-ID: <20251111004543.326722257@linuxfoundation.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251111004536.460310036@linuxfoundation.org> References: <20251111004536.460310036@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 6.17-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 9f1c460d5f0d4..0cc83bdb130fc 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c @@ -1088,10 +1088,6 @@ 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