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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On 8/28/26 4:05 PM, Krzysztof Kozlowski wrote: > Future Eliza SoC HDMI PHY and HDMI block require certain clock > operations, like reparenting pixclok to HDMI PHY PLL, once PHY is > initialized. Similarly to what is happening on Qualcomm MSM DSI blocks > since SM8750. [...] > static void msm_hdmi_power_on(struct drm_bridge *bridge) > +{ > + struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge); > + struct hdmi *hdmi = hdmi_bridge->hdmi; > + > + pm_runtime_resume_and_get(&hdmi->pdev->dev); > +} I know the caller is void and it's existing behavior, but we should definitely not continue if this fails Konrad -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C0D7CC624A4 for ; Mon, 31 Aug 2026 16:41:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DA86810E9F4; 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Mon, 31 Aug 2026 09:41:02 -0700 (PDT) X-Received: by 2002:a05:620a:90c5:20b0:939:48c8:656 with SMTP id af79cd13be357-93948c81290mr128474585a.1.1788194462308; Mon, 31 Aug 2026 09:41:02 -0700 (PDT) Received: from [192.168.202.12] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c2563c74bd8sm432590166b.40.2026.08.31.09.40.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 31 Aug 2026 09:41:01 -0700 (PDT) Message-ID: Date: Mon, 31 Aug 2026 18:40:58 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC/DO NOT MERGE 07/12] drm/msm/hdmi: Split PHY init from power up To: Krzysztof Kozlowski , Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vinod Koul , Neil Armstrong , Manivannan Sadhasivam , Bjorn Andersson , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Krzysztof Kozlowski , linux-phy@lists.infradead.org References: <20260828-drm-msm-hdmi-eliza-v1-0-67843277de17@oss.qualcomm.com> <20260828-drm-msm-hdmi-eliza-v1-7-67843277de17@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260828-drm-msm-hdmi-eliza-v1-7-67843277de17@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwODMxMDE0MyBTYWx0ZWRfXw9rAzeqnygmu ftEsDPHJYL+cOj/aVmq+4aLQ/ECZJEStZeTee0owVWmpiEYcvARQblAK5ILJtpkOWH8pReQpL3H c0WuCbxFIpyMb/prH0oJHlfRMCLVDa8= X-Proofpoint-ORIG-GUID: t3gl6WNbKymrIeRJ57grXEWGXk4X2wmq X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODMxMDE0MyBTYWx0ZWRfX1Ygwd3sdKm91 2K50fn9AsseL5yp7CVw3qAoPhpFoFEPDqbffqbCTAjOhkhwMrfBM8x7tomNARxx9DtnUhp24bLh jRjRjJDwF4mNjud2tfDsXRJdpk+NQEB1A9ISqAtiMf/bLIJM94qNHjCvzYw/s/9UeJJqcNcFRpG 3FzL6tMSpHJnh7i7gG5wOOsjpuJe/d+x70M48vmqjPodnM2WMoy8vpeGbqafmZUgUTdY1kxLlan ppLMPPxkIZjzvMM8n3MdiF+a9cOvfD+jMSu0GENRVW9VlUesDTBOElv4+89zA00oHJUxXd7rsNj GKam+tKdWJIf7RO683rCp0TsQ/qE4LGbWqiE7GQmLhP1olcwwMRiRsmBn8SrEe2xlF6KVynDfJZ XDJ4nZlDJ8OIb8r0SXdGnuc+9+Q6W71OW8FrFUT9GUgpBPzqZQV+S+/Tu3W2Zi/KkOsOqiBG7A7 pnRz4dlISGA/m5xpFvA== X-Authority-Analysis: v=2.4 cv=Iqsutr/g c=1 sm=1 tr=0 ts=6a95ae9f cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=nbnyxt4j9IoekFAbjR0A:9 a=QEXdDO2ut3YA:10 a=IoWCM6iH3mJn3m4BftBB:22 X-Proofpoint-GUID: t3gl6WNbKymrIeRJ57grXEWGXk4X2wmq X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-31_05,2026-08-31_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 spamscore=0 malwarescore=0 adultscore=0 lowpriorityscore=0 impostorscore=0 phishscore=0 suspectscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608310143 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 8/28/26 4:05 PM, Krzysztof Kozlowski wrote: > Future Eliza SoC HDMI PHY and HDMI block require certain clock > operations, like reparenting pixclok to HDMI PHY PLL, once PHY is > initialized. Similarly to what is happening on Qualcomm MSM DSI blocks > since SM8750. [...] > static void msm_hdmi_power_on(struct drm_bridge *bridge) > +{ > + struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge); > + struct hdmi *hdmi = hdmi_bridge->hdmi; > + > + pm_runtime_resume_and_get(&hdmi->pdev->dev); > +} I know the caller is void and it's existing behavior, but we should definitely not continue if this fails Konrad