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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b72bdbcea8csm1551575466b.8.2025.11.12.01.39.11 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 12 Nov 2025 01:39:12 -0800 (PST) Message-ID: Date: Wed, 12 Nov 2025 10:39:10 +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] arm64: dts: qcom: hamoa-iot-evk: Add backlight support for eDP panel To: Yongxing Mou , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Abel Vesa References: <20251112-hamoa_dvt_backlight-v3-1-f35b44af7fc4@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20251112-hamoa_dvt_backlight-v3-1-f35b44af7fc4@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: YTTDyVZ2eVBRnuldxN4a9033PQWIoge8 X-Authority-Analysis: v=2.4 cv=ao2/yCZV c=1 sm=1 tr=0 ts=691456bc cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=nPG1Do-yNho4o320QkMA:9 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-ORIG-GUID: YTTDyVZ2eVBRnuldxN4a9033PQWIoge8 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTEyMDA3NyBTYWx0ZWRfX2r9VnMsSJ77g Wj3qu2W//j1eE02bJmiuJC+pmdpc4v1ubM5n0ejxGdPlR8yEG+CynaJg7fqZ9RaVaf+fAcGBda7 VLmAMwX/0sen0ND8YRQXIya2OfRA6ZJMYdpy5iMaC8+pqOZbLU8hBIqdE7d1I0YY3kMXNkON+1u QDq7EnRkOSPfxe+YBJp//2gJX3TU+YW3XYqUSJzcNcCPQcjMNlR15II661dLd0L5bRRR9aJsZzL OHjCOi7FCOmzE5Y7EjRWfC0aYW9OhPaU0Bf98cKYRwyz/vziGZHJpDl9NeKJOvdL4cgSVrH4VqR 0QOBmmYKE8JkFwhl6a/1PzzfCDq8OMMTiRAPM+03Dst0rATlQXroLfc7lVilMXM1m+DQf8l/RUG phJJ01goPHNHw1ftaf+CHnZ4Pit58g== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-12_03,2025-11-11_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 spamscore=0 phishscore=0 adultscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 suspectscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511120077 On 11/12/25 5:21 AM, Yongxing Mou wrote: > The backlight on the Hamoa IoT EVK is controlled through a PWM signal. > Aligned with other x1e80100-based platforms: the PWM signal is controlled > by PMK8550, and the backlight enable signal is handled by PMC8380. > > Describe the backlight device and connect it to the eDP panel to allow > for brightness control. > > Reviewed-by: Abel Vesa > Signed-off-by: Yongxing Mou > --- Reviewed-by: Konrad Dybcio Konrad