From patchwork Sat Nov 16 12:54:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13877576 X-Patchwork-Delegate: kieran@bingham.xyz Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 3416BA47; Sat, 16 Nov 2024 12:59:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731761990; cv=none; b=L8/9JuimwhnuBf5qZ58cYmsG6CH+3PiRCG3bYp1/gVBTqF5yM0sYPdyC3JdkaQiSh6DAnjboSsyM0EJsJeAeeljKK3eTzOgtakEAp+Tw5GFoQK8htiAWkWE/FhhN66FQSiW1lDhQm3GRo7Bmwp49RV1eCzje+e+cItmsrClk07A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731761990; c=relaxed/simple; bh=JDxl1KCthDGbEtSRq8k2hqZqo9b5GOkmzcbdHO4VwaI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=b12q5yCEnyT8SlRfWclwUx7Op6vc29Tpbrbnp1zp++jPrQS/Nef88xa1x9JTpQlwPEFadCfJ673TcqU+ikbk9mPh8YAbMbrczXO+VIFkevWp4SlBmYXCryJ32RhRmI4a/eiafNxf7BFRXVawaIP0BYVpYPwrPkVqhVMWStxZGZ4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com; spf=pass smtp.mailfrom=bp.renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bp.renesas.com X-IronPort-AV: E=Sophos;i="6.12,159,1728918000"; d="scan'208";a="225033480" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 16 Nov 2024 21:54:45 +0900 Received: from localhost.localdomain (unknown [10.226.92.53]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 2A5C140065CD; Sat, 16 Nov 2024 21:54:35 +0900 (JST) From: Biju Das To: Andrzej Hajda , Neil Armstrong , Robert Foss , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: Biju Das , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , dri-devel@lists.freedesktop.org, Geert Uytterhoeven , Prabhakar Mahadev Lad , Biju Das , linux-renesas-soc@vger.kernel.org, Hien Huynh , stable@vger.kernel.org, Laurent Pinchart Subject: [PATCH v4 3/3] drm: adv7511: Drop dsi single lane support Date: Sat, 16 Nov 2024 12:54:12 +0000 Message-ID: <20241116125415.30799-4-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241116125415.30799-1-biju.das.jz@bp.renesas.com> References: <20241116125415.30799-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 As per [1] and [2], ADV7535/7533 supports only 2-, 3-, or 4-lane. Drop unsupported 1-lane. [1] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7535.pdf [2] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7533.pdf Fixes: 1e4d58cd7f88 ("drm/bridge: adv7533: Create a MIPI DSI device") Reported-by: Hien Huynh Cc: stable@vger.kernel.org Reviewed-by: Laurent Pinchart Signed-off-by: Biju Das --- Changes in v4: - Added link to ADV7533 data sheet. - Collected tags Changes in v3: - Updated commit header and description - Updated fixes tag - Dropped single lane support Changes in v2: - Added the tag "Cc: stable@vger.kernel.org" in the sign-off area. - Dropped Archit Taneja invalid Mail address --- drivers/gpu/drm/bridge/adv7511/adv7533.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/adv7511/adv7533.c b/drivers/gpu/drm/bridge/adv7511/adv7533.c index 5d0e55ef4028..51ddd935b568 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7533.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7533.c @@ -174,7 +174,7 @@ struct device_node *adv7533_parse_dt(struct device_node *np, of_property_read_u32(np, "adi,dsi-lanes", &num_lanes); - if (num_lanes < 1 || num_lanes > 4) + if (num_lanes < 2 || num_lanes > 4) return ERR_PTR(-EINVAL); adv->num_dsi_lanes = num_lanes;