From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (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 3139E30276A for ; Mon, 1 Sep 2025 10:08:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756721320; cv=none; b=GiwPdNWaXmnfKwGV78ahv31FxcGYpo8DGG71+nRetpx7NkSiv7myO0YgJzVSFITqg+pZerZv01i+s/XZaoDxzxqPPzNQQzyhSUbL3JaVkoA0A2IDb970tmZO7HD6ReE5ILrNjjxbuwzBkqF/aLLhUYAHcKPmLrqJBkaOe2RxoeE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756721320; c=relaxed/simple; bh=5wsS1CHZJ8OHXPaiPOyAmOnek5kpfFZAZqQYIPhD/pY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=JSsfTn1X+Wd3HjMm1W6Rs6ln+XEARUChuf+6L5ZZJLk1ohHuNpA3ejMR3IVbwHC41DxUuY4jePT2D52oXohxFKuYiliLsPnwRtn0Ij2StjMh8CbMxaKle3fv8C4nKDcXdaGaqsyMqItwv643z+2c+HcR0C/JjXbRNMAGW1rH5dc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=FZ876Z4a; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="FZ876Z4a" Received: from [192.168.88.20] (91-158-153-178.elisa-laajakaista.fi [91.158.153.178]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 456ED520; Mon, 1 Sep 2025 12:07:29 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1756721250; bh=5wsS1CHZJ8OHXPaiPOyAmOnek5kpfFZAZqQYIPhD/pY=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=FZ876Z4an8wopVLNXrdbdhA2uRlErOFwxpxyQWBIC+Zdm1st1uhzmJm467q5BY+da 5r57Cdl3SQIR67UklgztQZBOrsVM9Tg5Vpcn8hhm1xBFAlyxEYmuJTNClOGZNmmvSN EydUI5HnDl89Pdj/ZjvLtyCEQ0auZj/k+nA4Xskw= Message-ID: <2dd50da1-eb33-4d91-9bfc-224160f1e947@ideasonboard.com> Date: Mon, 1 Sep 2025 13:08:33 +0300 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 5/6] drm/bridge: cadence: cdns-mhdp8546-core: Reduce log level for DPCD read/write To: Harikrishna Shenoy Cc: jonas@kwiboo.se, jernej.skrabec@gmail.com, maarten.lankhorst@linux.intel.com, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, lyude@redhat.com, luca.ceresoli@bootlin.com, viro@zeniv.linux.org.uk, andy.yan@rock-chips.com, linux@treblig.org, javierm@redhat.com, linux-kernel@vger.kernel.org, devarsht@ti.com, j-choudhary@ti.com, u-kumar1@ti.com, s-jain1@ti.com, andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org, Laurent.pinchart@ideasonboard.com, mripard@kernel.org, lumag@kernel.org, dianders@chromium.org, dri-devel@lists.freedesktop.org References: <20250811075904.1613519-1-h-shenoy@ti.com> <20250811075904.1613519-6-h-shenoy@ti.com> Content-Language: en-US From: Tomi Valkeinen Autocrypt: addr=tomi.valkeinen@ideasonboard.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit Hi, On 11/08/2025 10:59, Harikrishna Shenoy wrote: > From: Jayesh Choudhary > > Reduce the log level for cdns_mhdp_dpcd_read and cdns_mhdp_dpcd_write > errors in cdns_mhdp_transfer function as in case of failure, there is > flooding of these prints along with other indicators like EDID failure > logs which are fairly intuitive in themselves rendering these error logs > useless. > Also, the caller functions for the cdns_mhdp_transfer in drm_dp_helper.c > (which calls it 32 times), has debug log level in case transfer fails. > So having a superseding log level in cdns_mhdp_transfer seems bad. > > Signed-off-by: Jayesh Choudhary > --- > drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c > index 47c657237c37..4fb1db3e030c 100644 > --- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c > +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c > @@ -778,7 +778,7 @@ static ssize_t cdns_mhdp_transfer(struct drm_dp_aux *aux, > if (!ret) > continue; > > - dev_err(mhdp->dev, > + dev_dbg(mhdp->dev, > "Failed to write DPCD addr %u\n", > msg->address + i); > > @@ -788,7 +788,7 @@ static ssize_t cdns_mhdp_transfer(struct drm_dp_aux *aux, > ret = cdns_mhdp_dpcd_read(mhdp, msg->address, > msg->buffer, msg->size); > if (ret) { > - dev_err(mhdp->dev, > + dev_dbg(mhdp->dev, > "Failed to read DPCD addr %u\n", > msg->address); > Reviewed-by: Tomi Valkeinen Tomi