From nobody Mon Feb 9 12:54:50 2026 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 3CFA417E for ; Fri, 1 Mar 2024 00:12:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251944; cv=none; b=m1G1d5fFmFha8LqwSq+0rnWqtqxMFbiCyXp+oCWxiZ2HAb22qjmX2jxVmZqSM6UzNfTzEh9y4i8E6e7+vswCG2HSjFNZvWWRVhYq0tEH04ZSHmzKojhLVV5UYDaM1+TLAVGAHQS4dkuDJkwrh67TjrYb5So9iO0ZLlZx1xvWLjw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251944; c=relaxed/simple; bh=iUKjpcxm8TFpwUzlmp7yRUbrK5h61wBPcr0xFrIbQOE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=XuhXsH3Hv+9CuGTa0Qn0f+Cas05pQJEGjOUmcnGWuel3r2k7jHSwCc/agOeovKhQwVLP1Qyu4qhTn22rnpYzSfk6yHkZlxgVGS5TlOuW7cOn34YgVvc3shwfJtq6Ty+P/6ZVF8JkJR7C9gwz6UEe6cZ8yS5g2LYd31fXjdPp+hg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=e8JXK2GO; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="e8JXK2GO" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1709251941; bh=iUKjpcxm8TFpwUzlmp7yRUbrK5h61wBPcr0xFrIbQOE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=e8JXK2GOsswG8I8J52YRL7iPEzLNsC5XsWsDNXpEVTibaB1WMH1dL8YIf7J9QsSSk NnyQRDQ4DyPxjUTIYaKL8rFl++rl880Sz+WAj9FPgeNqG9K0HJudCCHcy3K6TaZe0G Djwp2AWiUZcXVMe0BSlk20atDAYYMsjFE78WNuExOBNqKnYsBgByOOMu1+eIIq8SRf qa982cgqHWfMo3Xp2Ng1DUZkrQtPjATv5/RLnzS5whCqUVXYzQluP4DEkgApLOBslS uON8t7ObVdJYg+AIe1+G1gc1/nASEr5j3d48YeHOM3l7opZx1tAcoMsGcgYdQB4jFR A82h3nhp8QT1g== Received: from [192.168.1.205] (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madrid.collaboradmins.com (Postfix) with ESMTPSA id B813E37820D8; Fri, 1 Mar 2024 00:12:15 +0000 (UTC) From: =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= Date: Thu, 29 Feb 2024 19:12:07 -0500 Subject: [PATCH v2 1/9] drm/bridge: anx7625: Don't log an error when DSI host can't be found Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240229-anx7625-defer-log-no-dsi-host-v2-1-00506941049a@collabora.com> References: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> In-Reply-To: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , owen , Jagan Teki , Marek Vasut , Adrien Grassein , Srinivas Kandagatla , Sam Ravnborg , Bjorn Andersson , Vinod Koul , Dmitry Baryshkov , Vinay Simha BN , Christopher Vollo , Jessica Zhang , Marijn Suijten , AngeloGioacchino Del Regno Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno , =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= X-Mailer: b4 0.13.0 Given that failing to find a DSI host causes the driver to defer probe, make use of dev_err_probe() to log the reason. This makes the defer probe reason available and avoids alerting userspace about something that is not necessarily an error. Fixes: 269332997a16 ("drm/bridge: anx7625: Return -EPROBE_DEFER if the dsi = host was not found") Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Neil Armstrong Signed-off-by: N=C3=ADcolas F. R. A. Prado Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/bridge/analogix/anx7625.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/br= idge/analogix/anx7625.c index 29d91493b101..4ee5614a2623 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -2076,10 +2076,8 @@ static int anx7625_setup_dsi_device(struct anx7625_d= ata *ctx) }; =20 host =3D of_find_mipi_dsi_host_by_node(ctx->pdata.mipi_host_node); - if (!host) { - DRM_DEV_ERROR(dev, "fail to find dsi host.\n"); - return -EPROBE_DEFER; - } + if (!host) + return dev_err_probe(dev, -EPROBE_DEFER, "fail to find dsi host.\n"); =20 dsi =3D devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { --=20 2.44.0 From nobody Mon Feb 9 12:54:50 2026 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 853B21FB9 for ; Fri, 1 Mar 2024 00:12:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251951; cv=none; b=DTH6Reln5l5TOU1aYojA9MaYxd/yyYwTT+ldnPaMLXnQSJDTgKjhr3HKuoNAW01Nu1N+kONO79xHIGIrvct/INPHv/OmoxPjsLVQ4oiDtFiBoEpqg11QKCOq+SBkzifixjpnKU7lNuq8B3MxHbCdNh2ODPMNR2o4LgPVbSYqsO0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251951; c=relaxed/simple; bh=gnT6fVbzwGxli2Y/mzqkTnDg8570zOrbc+nwHaRR3vk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=M91olaCSW+ApQ6ntMZZa0ayq56jEhzqYz/EawagjfjkyQPDoVYC8WffySPe0hf9Q5/BOwBNBZOmdBTZG1MrvUajpzkLPKi0SAmuZ3Yv6qVKaZYwo9Wl8EVieTr9Zmtuom6IaghQ1y/o8icx5rZy0O0hv+tAzoOxyKuNma3HA9QM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=EJPD0bSu; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="EJPD0bSu" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1709251947; bh=gnT6fVbzwGxli2Y/mzqkTnDg8570zOrbc+nwHaRR3vk=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=EJPD0bSuCixJT6fY8/gLwi/Fr+UYpNod4uZfw2eAXxkQkbdiJ9XVQvnlzO0gTomxk IgF8iDGPhmZsvqLVaamRP9kf84r/VZtfn1qPnAL0v9GgB0HmH+9K1JVcAynmED7xMh ySOj2EmBuIuQcvBmCbti4lh1EAGne009cw+QwqORex2vndvoXh5l6UWYQ0tRNTK6ck j5PNRasF89dtlTJrOgE+L7h1A/y5i0U5D3dAOtwZ8d4dahWTp4NkGNxZCqNRV1juGc CUELRpn3PUqYiiuHClJxJgO1SdE2FOhUc8Xz3Ri5TZvFDeNPqH8RcjTFg3cQ17wF3a FFeExNDQ7bzfA== Received: from [192.168.1.205] (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 0007737820EC; Fri, 1 Mar 2024 00:12:21 +0000 (UTC) From: =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= Date: Thu, 29 Feb 2024 19:12:08 -0500 Subject: [PATCH v2 2/9] drm/bridge: icn6211: Don't log an error when DSI host can't be found Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240229-anx7625-defer-log-no-dsi-host-v2-2-00506941049a@collabora.com> References: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> In-Reply-To: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , owen , Jagan Teki , Marek Vasut , Adrien Grassein , Srinivas Kandagatla , Sam Ravnborg , Bjorn Andersson , Vinod Koul , Dmitry Baryshkov , Vinay Simha BN , Christopher Vollo , Jessica Zhang , Marijn Suijten , AngeloGioacchino Del Regno Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno , =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= X-Mailer: b4 0.13.0 Given that failing to find a DSI host causes the driver to defer probe, make use of dev_err_probe() to log the reason. This makes the defer probe reason available and avoids alerting userspace about something that is not necessarily an error. Fixes: 8dde6f7452a1 ("drm: bridge: icn6211: Add I2C configuration support") Suggested-by: AngeloGioacchino Del Regno Signed-off-by: N=C3=ADcolas F. R. A. Prado Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/bridge/chipone-icn6211.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/chipone-icn6211.c b/drivers/gpu/drm/bri= dge/chipone-icn6211.c index 82d23e4df09e..ff3284b6b1a3 100644 --- a/drivers/gpu/drm/bridge/chipone-icn6211.c +++ b/drivers/gpu/drm/bridge/chipone-icn6211.c @@ -563,10 +563,8 @@ static int chipone_dsi_host_attach(struct chipone *icn) =20 host =3D of_find_mipi_dsi_host_by_node(host_node); of_node_put(host_node); - if (!host) { - dev_err(dev, "failed to find dsi host\n"); - return -EPROBE_DEFER; - } + if (!host) + return dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n"); =20 dsi =3D mipi_dsi_device_register_full(host, &info); if (IS_ERR(dsi)) { --=20 2.44.0 From nobody Mon Feb 9 12:54:50 2026 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 0E2792582 for ; Fri, 1 Mar 2024 00:12:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251956; cv=none; b=CoSTBxyh306o2l0dw2iqvu9OXtLH8ddj1uE8wywpuyn9uVWT7/TSkQyGmlazH3xwT+LY9fNDIBgWjm/S5yIj8D2WpOqlY+iOYM+iAMf4ZNEJEZu0HcjhIhUa5HyHVBEglgSht5wMQsYRWG7qtjXg6eFG3iDIWPPD0Cym8ZJ83z0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251956; c=relaxed/simple; bh=WVysYAyr15mAm5m4P/SUrQDSA/7qQTGaNZ7Cnm3KAOg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=CuiRfUAutzbcezu1NoLRzhQqWBk2LTNiHrLIS8VWitF/f+GYC0JEoKWE+52hctZ8frk9WGpwc2Gx8mEB7OiZ/zybGffXX2nc4y/Jzkk0/U6Op3jb1XFKd2dV1zLOmWwv2Psn8crqt9tDHXQuuFvV2KPlpO0k/JCoci4Y1ohCqxg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=V7r6Wd2Z; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="V7r6Wd2Z" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1709251953; bh=WVysYAyr15mAm5m4P/SUrQDSA/7qQTGaNZ7Cnm3KAOg=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=V7r6Wd2Zq7IqIuAc7RYAeEuBl0zwwqCHFPKfaWlTO2uEW2vOT9jyvDiBZ6TFEb+Rs gt5QZzWWrRQfSCGcp8YRrVaxwmhhPz2/hh9JPtZex3VA7AwvOIiIFJAExoV3x/fmCi wZjd8m9VkO2VLjx38KFB2oRaBPbsKpmmB4H8jw81L+TJhwC5INjvPOPRPvwMkDWg8z WhPSGy/WLLe6fY806qHsH93O/e3zKEmb/qv6m7e70WOD83C1vRaaqT5xvFnwycVA5w irwu6+6iVgQoWiKfxKrOl3r8wN+Yd5sIqISzT6grUcL4p5ihJKYbNHmxtnV1RVBJD1 QwiJeZD5JMy2w== Received: from [192.168.1.205] (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 3CDB937820EE; Fri, 1 Mar 2024 00:12:28 +0000 (UTC) From: =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= Date: Thu, 29 Feb 2024 19:12:09 -0500 Subject: [PATCH v2 3/9] drm/bridge: lt8912b: Don't log an error when DSI host can't be found Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240229-anx7625-defer-log-no-dsi-host-v2-3-00506941049a@collabora.com> References: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> In-Reply-To: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , owen , Jagan Teki , Marek Vasut , Adrien Grassein , Srinivas Kandagatla , Sam Ravnborg , Bjorn Andersson , Vinod Koul , Dmitry Baryshkov , Vinay Simha BN , Christopher Vollo , Jessica Zhang , Marijn Suijten , AngeloGioacchino Del Regno Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno , =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= X-Mailer: b4 0.13.0 Given that failing to find a DSI host causes the driver to defer probe, make use of dev_err_probe() to log the reason. This makes the defer probe reason available and avoids alerting userspace about something that is not necessarily an error. Fixes: 30e2ae943c26 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge") Suggested-by: AngeloGioacchino Del Regno Signed-off-by: N=C3=ADcolas F. R. A. Prado Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/bridge/lontium-lt8912b.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bri= dge/lontium-lt8912b.c index 273157428c82..15aa890c3e6d 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -496,10 +496,8 @@ static int lt8912_attach_dsi(struct lt8912 *lt) }; =20 host =3D of_find_mipi_dsi_host_by_node(lt->host_node); - if (!host) { - dev_err(dev, "failed to find dsi host\n"); - return -EPROBE_DEFER; - } + if (!host) + return dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n"); =20 dsi =3D devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { --=20 2.44.0 From nobody Mon Feb 9 12:54:50 2026 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 9E93F3C04 for ; Fri, 1 Mar 2024 00:12:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251962; cv=none; b=WUrqHuWxrKZYwGg779GEUhcdgoCLWePjIe8mUDFMcYtpp0fCcmECNHjmbml+x00QCHlkgc9YEx2Op4CXKaapnfG2hPqiN74VK2y9CDuAHDf5U3zh9yEFvgTfm+e4uoD95agSgyb6c/bF6Xex8hjCvHzEZIQZjnbuRINEPB72XBQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251962; c=relaxed/simple; bh=iH06xccM8Cux1F3BhJ2YYDHKnbi65kEA+R8Dz6nQIhU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=qZnv7I9FBYyj0YdT2HUJbsNXBMEsd8emFznyFgRLykky1Vii1B5Da0P82vGxKW8bA7z8yvpqfXVvr91jZdVCYCyYxXSv8yY/r7d28KS2dYJgjceuPqsa0nidA+ALcJAYOk0kSzM0yKoNkzyDVXuk3kXys3fLSxfgM9TebFGTNsc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=QMCvJvfO; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="QMCvJvfO" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1709251958; bh=iH06xccM8Cux1F3BhJ2YYDHKnbi65kEA+R8Dz6nQIhU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=QMCvJvfOb47s8BTrX0J8KLUOyCSWQFMsBlKURkN5Iw8iy2JCXUPnT1XgpLe5jYetj I7sbsjq8rs2nSsg2sCt1bsy1BfN4ACvsXxEDFAP8nIVgA0JZra/2MuIP/4H3Ats7Ea Nb4XKvZov0gHj3KHnIQO/pA1L7KoQooL8mpZSfzV4QyqpubiltMDDZ9zNuqQkuGGFe b2QjpJD+FN4NStVvM4H0/VFql14kh89WNclXaT8XNe/8z/xx0BNa3Jzz+Kw5IzqPxA xwj9O2qma7BGQ+NMGCLO5tMTd2DvzcNKr/jZ3REDPV+wfyjft3mG4R1fTGSWHNDy8s e21co4cIe/pGQ== Received: from [192.168.1.205] (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 8B471378000E; Fri, 1 Mar 2024 00:12:33 +0000 (UTC) From: =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= Date: Thu, 29 Feb 2024 19:12:10 -0500 Subject: [PATCH v2 4/9] drm/bridge: lt9611: Don't log an error when DSI host can't be found Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240229-anx7625-defer-log-no-dsi-host-v2-4-00506941049a@collabora.com> References: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> In-Reply-To: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , owen , Jagan Teki , Marek Vasut , Adrien Grassein , Srinivas Kandagatla , Sam Ravnborg , Bjorn Andersson , Vinod Koul , Dmitry Baryshkov , Vinay Simha BN , Christopher Vollo , Jessica Zhang , Marijn Suijten , AngeloGioacchino Del Regno Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno , =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= X-Mailer: b4 0.13.0 Given that failing to find a DSI host causes the driver to defer probe, make use of dev_err_probe() to log the reason. This makes the defer probe reason available and avoids alerting userspace about something that is not necessarily an error. Fixes: 23278bf54afe ("drm/bridge: Introduce LT9611 DSI to HDMI bridge") Suggested-by: AngeloGioacchino Del Regno Signed-off-by: N=C3=ADcolas F. R. A. Prado Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/bridge/lontium-lt9611.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/brid= ge/lontium-lt9611.c index 9663601ce098..89bdd938757e 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -760,10 +760,8 @@ static struct mipi_dsi_device *lt9611_attach_dsi(struc= t lt9611 *lt9611, int ret; =20 host =3D of_find_mipi_dsi_host_by_node(dsi_node); - if (!host) { - dev_err(lt9611->dev, "failed to find dsi host\n"); - return ERR_PTR(-EPROBE_DEFER); - } + if (!host) + return ERR_PTR(dev_err_probe(lt9611->dev, -EPROBE_DEFER, "failed to find= dsi host\n")); =20 dsi =3D devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { --=20 2.44.0 From nobody Mon Feb 9 12:54:50 2026 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 69BD363C for ; Fri, 1 Mar 2024 00:12:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251967; cv=none; b=o3TzFVIOTYV7mHGYmT9NzVtdjrhR+BJM42lJcvNKNlQGW3QMhTA/ip69ucA56eFB/tmjjWqPiak6XjWhOWhmMgbq5xZbee10UCFccCyYScfj6SXlaGBCaf9vbxZTTduFEz8AlSUu1vCyIxKPv8ylghpjIGSjmP/aEFcP1JSN8g4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251967; c=relaxed/simple; bh=USSgCDP9hS4bs7tJCyGn4h6s80NL6hl+B96SysSOP2Q=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=dTNF2AtYBqlIVAaKgjmyXC3Q3i54DSaQusIdKELHgoPoxyL/AbBbJsyo5omPT+naJS1Ep/XsyFc5MiPFkiJuA7GFM1r+8KrUhMxQEc5S+hPtVr0+9IQExrqmyqK+6ywB/V0KdXqng8MNIAyCyfB4RfBiUu4DzDDkhzrcBivPrYY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=Oe4pTP9H; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="Oe4pTP9H" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1709251964; bh=USSgCDP9hS4bs7tJCyGn4h6s80NL6hl+B96SysSOP2Q=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Oe4pTP9HkQIUhqP7j+3FqMmZmdGnO2r3byoKDxh6zJe1fAoftVHZrxeVbPtsb9yrI sRAxGkyEfKav4ZWFDQ6FCq40DNstMDbt7ZYt9d1HxPcJjhhr+Vhsm43df5zMC+E1XU RfLxK8wIhCYLV1vQVFNUNTRHiLyEeu+uM70wOskQO+OPK55SWmxWqlqWs0EIaV2STL jeNSAT0O/IQk79pXb4Y01x78p8hs8WLpRwTFvImMOEMa8aekp/ssl4ond2ULq5ZhMH VoO7a6MDbi0ATB8uHe3fuP1xyTav7pzpPN4fNIU3q47i6O5oCxaUw2uxS1cj/eMcJ0 s7Us4BWoXqpjw== Received: from [192.168.1.205] (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 1CA4337820EC; Fri, 1 Mar 2024 00:12:38 +0000 (UTC) From: =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= Date: Thu, 29 Feb 2024 19:12:11 -0500 Subject: [PATCH v2 5/9] drm/bridge: lt9611uxc: Don't log an error when DSI host can't be found Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240229-anx7625-defer-log-no-dsi-host-v2-5-00506941049a@collabora.com> References: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> In-Reply-To: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , owen , Jagan Teki , Marek Vasut , Adrien Grassein , Srinivas Kandagatla , Sam Ravnborg , Bjorn Andersson , Vinod Koul , Dmitry Baryshkov , Vinay Simha BN , Christopher Vollo , Jessica Zhang , Marijn Suijten , AngeloGioacchino Del Regno Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno , =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= X-Mailer: b4 0.13.0 Given that failing to find a DSI host causes the driver to defer probe, make use of dev_err_probe() to log the reason. This makes the defer probe reason available and avoids alerting userspace about something that is not necessarily an error. Fixes: 0cbbd5b1a012 ("drm: bridge: add support for lontium LT9611UXC bridge= ") Suggested-by: AngeloGioacchino Del Regno Signed-off-by: N=C3=ADcolas F. R. A. Prado Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/bridge/lontium-lt9611uxc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c b/drivers/gpu/drm/b= ridge/lontium-lt9611uxc.c index e971b75e90ad..b803899126d5 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c @@ -265,10 +265,8 @@ static struct mipi_dsi_device *lt9611uxc_attach_dsi(st= ruct lt9611uxc *lt9611uxc, int ret; =20 host =3D of_find_mipi_dsi_host_by_node(dsi_node); - if (!host) { - dev_err(dev, "failed to find dsi host\n"); - return ERR_PTR(-EPROBE_DEFER); - } + if (!host) + return ERR_PTR(dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi hos= t\n")); =20 dsi =3D devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { --=20 2.44.0 From nobody Mon Feb 9 12:54:50 2026 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 620254A20 for ; Fri, 1 Mar 2024 00:12:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251972; cv=none; b=IS6IAaxyizhB+9ZvTEQe531nDI7H3agOBIABoqBtu061iMBIjSWlTKKJqU+k5S1f6SntKaP75yoDyB1zB6rF+5xfBOInAM6hkpiMPREJ4NQza4jwrfyLVKFB9uAhZwEizzab1C1nWWiaw+0Wf3HfVraqnkgFSCSqu2v6rxRdihY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251972; c=relaxed/simple; bh=x6U7HBr2+APn5ZpeLNHOIRw/a7yOuDvPI1HGkDefAI0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=JTySUHP/yviT1/sTxVsKIFhnOrhKnhID2z9m8H/g2udHE3e0X2yKcbdiGINoumSC2vO2fXPYcc/4ioxIyHomQb7H8N039ii9nDulXf1gKKRgPJv66FB5HlqAobFMzyKRnvGh8UktLyeY4Duw6BF0TCPSM7iM2IOoDN76qozMVQw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=U5WNUS2Y; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="U5WNUS2Y" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1709251970; bh=x6U7HBr2+APn5ZpeLNHOIRw/a7yOuDvPI1HGkDefAI0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=U5WNUS2YRX2M9Wm9IoWrVZ9o3oKmM9fqRzZeP0ZusgHofuUBWc5bPR92cN0XGwmQa 4Q6qDeRML0MCbRFxg/De9Cqf14L73Un6+fokUNKcPQi5YZfQvziUHwyds+ZQSI1bpo WtPkOKmL4d4CU7WUXN9A1Buz7yG4SaVEAotkZgTBtCVUbNAK+w191RJpbZsiVM+9ca TyEhsr3xRMYGNWkbK+1yQk2EKjCtJqqHCzMbilHW9/HiEPBS0aq23OtuW4NN9J1q6E QbN/bzaOQv17U+DNmzWWOgnW74ciL1YZ6s/KMPHGQ2i3HIBORWIXqPZE0oGgUAUuJM twcOyHfO9wmuw== Received: from [192.168.1.205] (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 09E8D378000E; Fri, 1 Mar 2024 00:12:44 +0000 (UTC) From: =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= Date: Thu, 29 Feb 2024 19:12:12 -0500 Subject: [PATCH v2 6/9] drm/bridge: tc358775: Don't log an error when DSI host can't be found Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240229-anx7625-defer-log-no-dsi-host-v2-6-00506941049a@collabora.com> References: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> In-Reply-To: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , owen , Jagan Teki , Marek Vasut , Adrien Grassein , Srinivas Kandagatla , Sam Ravnborg , Bjorn Andersson , Vinod Koul , Dmitry Baryshkov , Vinay Simha BN , Christopher Vollo , Jessica Zhang , Marijn Suijten , AngeloGioacchino Del Regno Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno , =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= X-Mailer: b4 0.13.0 Given that failing to find a DSI host causes the driver to defer probe, make use of dev_err_probe() to log the reason. This makes the defer probe reason available and avoids alerting userspace about something that is not necessarily an error. Fixes: b26975593b17 ("display/drm/bridge: TC358775 DSI/LVDS driver") Suggested-by: AngeloGioacchino Del Regno Signed-off-by: N=C3=ADcolas F. R. A. Prado Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/bridge/tc358775.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/tc358775.c b/drivers/gpu/drm/bridge/tc3= 58775.c index 90a89d70d832..fea4f00a20f8 100644 --- a/drivers/gpu/drm/bridge/tc358775.c +++ b/drivers/gpu/drm/bridge/tc358775.c @@ -610,10 +610,8 @@ static int tc_attach_host(struct tc_data *tc) }; =20 host =3D of_find_mipi_dsi_host_by_node(tc->host_node); - if (!host) { - dev_err(dev, "failed to find dsi host\n"); - return -EPROBE_DEFER; - } + if (!host) + return dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n"); =20 dsi =3D devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { --=20 2.44.0 From nobody Mon Feb 9 12:54:50 2026 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 A83D817E for ; Fri, 1 Mar 2024 00:12:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251979; cv=none; b=JHKYJvknHdLr5lZJpNufUygi+RzQ3jrxVzfA1j6HBHA3j/Kbkj0BR8kV+bg8RPbvS3woR67gjQMfK0yRk+ZTBqiJTlh328kQAHuNf/5zidZZohxxMX6SOSrU77sWtWtuXUT4Nc6LqZnun2Q8/Akzfx4o5/2e+CubHpcoFIK5Em8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251979; c=relaxed/simple; bh=+CKVPsOP7VaA2gwBWrP4ZLU4toVT2KatRN6rysdk1vs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=rTpEv62EyJzl2oJIgKCvOVD0GWK36sEPRXMFjy/+N/bNM95Hj+ETTQg1omF/f/8oQq/y01s6ICKL17l2lniZ15blQ8Bgn39zR5WaB1OYcOUeOhhW5A6LUQi5m/B2R0b7aYfR5B3PoYH436nHN0pwTMzNNo8mQV2p2YrBV23MnDI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=sqzDMqcq; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="sqzDMqcq" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1709251975; bh=+CKVPsOP7VaA2gwBWrP4ZLU4toVT2KatRN6rysdk1vs=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=sqzDMqcqvD5UoN64HHW3ZFjlCUvz3hvCdeFOV7qiY/TA6mxT6jFofmQOe+9wpnpC2 qSQmKmDrFaMnCq6HWcGMoKcZWWl+nZGmELERlI2jXHRBgMt0ZdsHVRYglcwhIqciV5 pIaHj/AMt9oBdFNsItzChDdshlRhwaUznS4xcx+xi2rO76sNGk6i8QBhWTryMyfckY /sF9/hRXyJmHNkxzyFcOL4HshTOenSegh/A5CrV40SiV0auGJRBtxq0oY/tY5zIOJL Se+bbt7fSzbcSJToyRyC7BXxbvCB/8V2wYaSPs+vGR2dDISGzAhi5xh+qPvM/Ku/LQ BrhfJcPqdEteQ== Received: from [192.168.1.205] (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 5987537820D8; Fri, 1 Mar 2024 00:12:50 +0000 (UTC) From: =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= Date: Thu, 29 Feb 2024 19:12:13 -0500 Subject: [PATCH v2 7/9] drm/bridge: dpc3433: Don't log an error when DSI host can't be found Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240229-anx7625-defer-log-no-dsi-host-v2-7-00506941049a@collabora.com> References: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> In-Reply-To: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , owen , Jagan Teki , Marek Vasut , Adrien Grassein , Srinivas Kandagatla , Sam Ravnborg , Bjorn Andersson , Vinod Koul , Dmitry Baryshkov , Vinay Simha BN , Christopher Vollo , Jessica Zhang , Marijn Suijten , AngeloGioacchino Del Regno Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno , =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= X-Mailer: b4 0.13.0 Given that failing to find a DSI host causes the driver to defer probe, make use of dev_err_probe() to log the reason. This makes the defer probe reason available and avoids alerting userspace about something that is not necessarily an error. Also move the "failed to attach" error message so that it's only printed when the devm_mipi_dsi_attach() call fails. Fixes: 6352cd451ddb ("drm: bridge: Add TI DLPC3433 DSI to DMD bridge") Suggested-by: AngeloGioacchino Del Regno Signed-off-by: N=C3=ADcolas F. R. A. Prado Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/bridge/ti-dlpc3433.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/bridge/ti-dlpc3433.c b/drivers/gpu/drm/bridge/= ti-dlpc3433.c index ca3348109bcd..6b559e071301 100644 --- a/drivers/gpu/drm/bridge/ti-dlpc3433.c +++ b/drivers/gpu/drm/bridge/ti-dlpc3433.c @@ -319,12 +319,11 @@ static int dlpc_host_attach(struct dlpc *dlpc) .channel =3D 0, .node =3D NULL, }; + int ret; =20 host =3D of_find_mipi_dsi_host_by_node(dlpc->host_node); - if (!host) { - DRM_DEV_ERROR(dev, "failed to find dsi host\n"); - return -EPROBE_DEFER; - } + if (!host) + return dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n"); =20 dlpc->dsi =3D mipi_dsi_device_register_full(host, &info); if (IS_ERR(dlpc->dsi)) { @@ -336,7 +335,11 @@ static int dlpc_host_attach(struct dlpc *dlpc) dlpc->dsi->format =3D MIPI_DSI_FMT_RGB565; dlpc->dsi->lanes =3D dlpc->dsi_lanes; =20 - return devm_mipi_dsi_attach(dev, dlpc->dsi); + ret =3D devm_mipi_dsi_attach(dev, dlpc->dsi); + if (ret) + DRM_DEV_ERROR(dev, "failed to attach dsi host\n"); + + return ret; } =20 static int dlpc3433_probe(struct i2c_client *client) @@ -367,10 +370,8 @@ static int dlpc3433_probe(struct i2c_client *client) drm_bridge_add(&dlpc->bridge); =20 ret =3D dlpc_host_attach(dlpc); - if (ret) { - DRM_DEV_ERROR(dev, "failed to attach dsi host\n"); + if (ret) goto err_remove_bridge; - } =20 return 0; =20 --=20 2.44.0 From nobody Mon Feb 9 12:54:50 2026 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 0EF2E6AA2 for ; Fri, 1 Mar 2024 00:13:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251983; cv=none; b=PjNoqHezDXdCJt5aEEWDnbZzu+bTcJxTAJrtcptndmq2HZZitKR3/Dcsw36zpPOkwBIpnoWcVypCPUnY3+3H39jM/F2SP92OFBb+L2zioasvsS+RFTMQAHlOWmC14ZciTyZXW5NQKpxX4UiZ1zoHNH8H/fPqeC89FYGPsJGc4EY= ARC-Message-Signature: i=1; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240229-anx7625-defer-log-no-dsi-host-v2-8-00506941049a@collabora.com> References: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> In-Reply-To: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , owen , Jagan Teki , Marek Vasut , Adrien Grassein , Srinivas Kandagatla , Sam Ravnborg , Bjorn Andersson , Vinod Koul , Dmitry Baryshkov , Vinay Simha BN , Christopher Vollo , Jessica Zhang , Marijn Suijten , AngeloGioacchino Del Regno Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno , =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= X-Mailer: b4 0.13.0 Given that failing to find a DSI host causes the driver to defer probe, make use of dev_err_probe() to log the reason. This makes the defer probe reason available and avoids alerting userspace about something that is not necessarily an error. Fixes: 623a3531e9cf ("drm/panel: Add driver for Novatek NT35950 DSI DriverI= C panels") Suggested-by: AngeloGioacchino Del Regno Signed-off-by: N=C3=ADcolas F. R. A. Prado Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Laurent Pinchart Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/panel/panel-novatek-nt35950.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-novatek-nt35950.c b/drivers/gpu/dr= m/panel/panel-novatek-nt35950.c index 648ce9201426..028fdac293f7 100644 --- a/drivers/gpu/drm/panel/panel-novatek-nt35950.c +++ b/drivers/gpu/drm/panel/panel-novatek-nt35950.c @@ -556,10 +556,8 @@ static int nt35950_probe(struct mipi_dsi_device *dsi) } dsi_r_host =3D of_find_mipi_dsi_host_by_node(dsi_r); of_node_put(dsi_r); - if (!dsi_r_host) { - dev_err(dev, "Cannot get secondary DSI host\n"); - return -EPROBE_DEFER; - } + if (!dsi_r_host) + return dev_err_probe(dev, -EPROBE_DEFER, "Cannot get secondary DSI host= \n"); =20 nt->dsi[1] =3D mipi_dsi_device_register_full(dsi_r_host, info); if (!nt->dsi[1]) { --=20 2.44.0 From nobody Mon Feb 9 12:54:50 2026 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 7B3721364 for ; Fri, 1 Mar 2024 00:13:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251988; cv=none; b=E+HazQQPaMN/SAzZ6isWvX2QdFpk1/CV/UeMtxsCCS+GIV1fW469jsrI3bGecvQa42aFrlnY+Uv/3L7FcrzGyH+v4KsI6uDpO6rp1ni8TBuhqb2P0pkkOXyV7345Bu2Q5lHfsUqtP5qkoIeQotByNONqCH+gCxqZzXk7X/jREvM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709251988; c=relaxed/simple; bh=plA+/Ds0xvFbb6U3u3M8ilxs/x7ZgpNx1PsraFtKLNM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=pe9B5wD+WmvR1FWp/T9PQKtym8X5wqrcQaM1j+LtqikpxpDBYHCadWNolXTw83ZwXEoEgZql56ICxCU96DGTFh3R+DxJ2psWmvKz270UM6aZwvU5VwOcrKPV7wPtzZrQmJxy5noPP76ZrSgnHaEAN1YedT302oVQQD72fzZ4H84= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=bELh1cTn; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="bELh1cTn" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1709251985; bh=plA+/Ds0xvFbb6U3u3M8ilxs/x7ZgpNx1PsraFtKLNM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=bELh1cTnraZfxf8dHy6VCIwRcfxJwFIbKP+rfx9P36tSUl6jdNOa8bfxW+fFHoI4b AXNq+sfqg0CLcRG+1hGv5RyiLTZHEVHEazsZCCTKDuRpgY8mAKwnnFVaJzhdjEfQU7 9PQx302JO3t6shSX/7rjg9Y0noLFaMcqw9rFHg+/EU52m22oKJ2viqQMMTt5NrxTIF 7xForobxy/oTLhbLNT6/Aqb6wMU4kupeYJDyNl1sCc/BZqVv6uJVPV67C2fk+jsko0 itosv+yHr3qgdhs2GtRG1BCw39+AU390RBMuRZLP7EM/+r4gIqsAWRhlq1PGovcjnJ VMl6h2DznZkUQ== Received: from [192.168.1.205] (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madrid.collaboradmins.com (Postfix) with ESMTPSA id DEA4037820EE; Fri, 1 Mar 2024 00:13:00 +0000 (UTC) From: =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= Date: Thu, 29 Feb 2024 19:12:15 -0500 Subject: [PATCH v2 9/9] drm/panel: truly-nt35597: Don't log an error when DSI host can't be found Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240229-anx7625-defer-log-no-dsi-host-v2-9-00506941049a@collabora.com> References: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> In-Reply-To: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , owen , Jagan Teki , Marek Vasut , Adrien Grassein , Srinivas Kandagatla , Sam Ravnborg , Bjorn Andersson , Vinod Koul , Dmitry Baryshkov , Vinay Simha BN , Christopher Vollo , Jessica Zhang , Marijn Suijten , AngeloGioacchino Del Regno Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno , =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= X-Mailer: b4 0.13.0 Given that failing to find a DSI host causes the driver to defer probe, make use of dev_err_probe() to log the reason. This makes the defer probe reason available and avoids alerting userspace about something that is not necessarily an error. Suggested-by: AngeloGioacchino Del Regno Signed-off-by: N=C3=ADcolas F. R. A. Prado Reviewed-by: Abhinav Kumar Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Laurent Pinchart Reviewed-by: Laurent Pinchart Reviewed-by: Neil Armstrong --- drivers/gpu/drm/panel/panel-truly-nt35597.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-truly-nt35597.c b/drivers/gpu/drm/= panel/panel-truly-nt35597.c index b73448cf349d..d447db912a61 100644 --- a/drivers/gpu/drm/panel/panel-truly-nt35597.c +++ b/drivers/gpu/drm/panel/panel-truly-nt35597.c @@ -550,10 +550,8 @@ static int truly_nt35597_probe(struct mipi_dsi_device = *dsi) =20 dsi1_host =3D of_find_mipi_dsi_host_by_node(dsi1); of_node_put(dsi1); - if (!dsi1_host) { - dev_err(dev, "failed to find dsi host\n"); - return -EPROBE_DEFER; - } + if (!dsi1_host) + return dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n"); =20 /* register the second DSI device */ dsi1_device =3D mipi_dsi_device_register_full(dsi1_host, &info); --=20 2.44.0