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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b9b20218682sm114362166b.6.2026.03.26.05.07.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 26 Mar 2026 05:08:01 -0700 (PDT) Message-ID: <87943afd-2601-423e-878d-36b69ac3d6c3@oss.qualcomm.com> Date: Thu, 26 Mar 2026 13:07:59 +0100 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 v3 3/6] arm64: dts: qcom: msm8953-flipkart-rimob: Enable display and GPU To: cristian_ci Cc: Neil Armstrong , Jessica Zhang , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org References: <20260321-rimob-new-features-v3-0-d4b8ee867de7@protonmail.com> <20260321-rimob-new-features-v3-3-d4b8ee867de7@protonmail.com> <109d21b4-5d16-4689-8383-ecd29bbbf8a6@oss.qualcomm.com> <7wYxWlqdcbL3ANB9n0g4t74x-dwE2yG4CmVw9TwGNmwARxbT5WsdG1fpuIDSA5ab750Gs8OUBwmVa_nZd065guKDJueytb1AmlQ05__IzmU=@protonmail.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <7wYxWlqdcbL3ANB9n0g4t74x-dwE2yG4CmVw9TwGNmwARxbT5WsdG1fpuIDSA5ab750Gs8OUBwmVa_nZd065guKDJueytb1AmlQ05__IzmU=@protonmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=fufRpV4f c=1 sm=1 tr=0 ts=69c521a4 cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=sfOm8-O8AAAA:8 a=XqikXB0HrO5LkgwUDCoA:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 a=TvTJqdcANYtsRzA46cdi:22 X-Proofpoint-GUID: 9Xw4migTv8OpOORPHKDNxxWi8X4cBZsL X-Proofpoint-ORIG-GUID: 9Xw4migTv8OpOORPHKDNxxWi8X4cBZsL X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzI2MDA4NCBTYWx0ZWRfX5Z1Gvdew3WTo uBDeRQLPdHL33OEpCH4k0JBn7tizrwtXVLJapaSMfDjz/SbJcqgUxh/n0au0BAbTjnAwgyqKGwO Vs2cekvAZ/30TOjO//4hVCMhkc5kmR31cG8al1iuyVbSw4B7Myc8fFz5ONGur2tcSupTc6gfMKP 5DDhQUI5Wm8EFl/RrLJab2vui4nfiushs3R7jAfPueKCCEVe/n8RNMZQpHJm6x5qnnCwZPq6Gar f4hiGcyHn603TGuxrsUQpqyVXAuLSvYLV4XGMzquDBU4DMmBDsEsCWBoZS4rofNW4WxTI2n2R/t BF3GOx0b8ez+ZP4Yat2khCuNRTmQ4OjkH7Bs7rKUu0i2MSLZeQt582NlKuuiu/Smzde3tvYgMnH Yt2idMi/Ai62nOTCYuNzjOEQIFuNZhDhKxzsGHI83m74i11oc27iMG8dRO+IcD1Fh7MoySiDXtu t/hH1gLn35koaSBqt4A== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-26_02,2026-03-24_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 priorityscore=1501 malwarescore=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 phishscore=0 impostorscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603260084 On 3/24/26 12:18 PM, cristian_ci wrote: > On Monday, March 23rd, 2026 at 11:52, Konrad Dybcio wrote: > >> On 3/21/26 5:23 PM, Cristian Cozzolino via B4 Relay wrote: >>> From: Cristian Cozzolino >>> >>> Add the description for the display panel found on this phone. >>> And with this done we can also enable the GPU and set the zap shader >>> firmware path. >>> >>> Signed-off-by: Cristian Cozzolino >>> --- >> >> [...] >> >>> + panel_default: panel-default-state { >>> + pins = "gpio61"; >>> + function = "gpio"; >>> + drive-strength = <8>; >>> + bias-disable; >>> + output-high; >> >> This says "by default, actively drive the pin not to reset the display >> panel". Is this actually necessary? > > I've tried to remove panel pinctrl stuff from the panel and the device still boots/works exactly like before. So, have I to submit v4 without pinctrl at all for the panel? No, the pin config is useful, I'm specifically referencing the output-high property Konrad