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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7ff7e48f258sm11649868b3a.47.2025.12.22.18.12.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 22 Dec 2025 18:13:01 -0800 (PST) Message-ID: Date: Tue, 23 Dec 2025 10:12:56 +0800 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 0/4] Initial patch set for PURWA-IOT-EVK To: Dmitry Baryshkov Cc: andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org References: <20251222-purwa-v1-0-14ab9316e5ff@oss.qualcomm.com> Content-Language: en-US From: Yijie Yang In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjIzMDAxNiBTYWx0ZWRfX5/QOtFTWBMY9 cM5B1/eyKNNG/E/hFuG6PyM2PxlQuinzDb579Wl0YZo0OHnFettXVTKOIkpy2zbH9fjTyNv2eDt K/71EOMQn/2qFEO31GmLoCwv1xvsZh6BCveGc9vRlY4pdb4OVAknAPe3pA8COEnusMCD8qYR80j 76G3cF4WuGO2Ro6i0pTPimspCV3bcNCSS1UmL44f+aFF8r9e9Q87+CjHYxTdDHqGOYiw7eVqNTi LbPXQqHdZU7I2w9lz8GZic4IHY1YH7A1cXEEt22+w1Ba3PcjM9m1cg5mleaUyQsFUMcx2V4bhbe R+VedipHeLdImiKIMtxD2pg7vtyH/2OEmQGGyZl9hFiI+qpb6BzJBqplOLQ1MGtRlB/RXK69rmJ O1RDdCV2uVxkks+JNBscPcxBwuPdcx0TXRa8iOiRHdnMWo2rrQfVNRjLJF2Yd02W+i6Qg8/qNyH gzjCY+GBkyz+QUMV2hQ== X-Proofpoint-GUID: wQuiQtVP54gZIzgzmZC84ijwonIVwMqQ X-Proofpoint-ORIG-GUID: wQuiQtVP54gZIzgzmZC84ijwonIVwMqQ X-Authority-Analysis: v=2.4 cv=T/eBjvKQ c=1 sm=1 tr=0 ts=6949faaf cx=c_pps a=m5Vt/hrsBiPMCU0y4gIsQw==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=8S1x9iRXHCQAEbiqu74A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=IoOABgeZipijB_acs4fv:22 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=2025-12-22_04,2025-12-22_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 impostorscore=0 bulkscore=0 clxscore=1015 suspectscore=0 malwarescore=0 adultscore=0 phishscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2512230016 On 12/22/2025 5:18 PM, Dmitry Baryshkov wrote: > On Mon, Dec 22, 2025 at 02:03:25PM +0800, YijieYang wrote: >> From: Yijie Yang >> >> Introduce the device tree, DT bindings, and driver modifications required >> to bring up the PURWA-IOT-EVK evaluation board. >> >> Purwa and Hamoa are IoT variants of x1p42100 and x1e80100, both based on >> the IQ-X SoC series. Consequently, the two common files in this series are >> prefixed with 'iq-x-iot' to reflect this relationship. >> >> PURWA-IOT-EVK shares almost the same hardware design with HAMOA-IOT-EVK, >> except for differences in the BOM. As a result, most of the DTS can be >> shared between them. >> >> The changes focus on two key hardware components: the PURWA-IOT-SOM and >> the PURWA-IOT-EVK carrier board. >> >> Hardware delta between Hamoa and Purwa: >> - Display: Purwa’s display uses a different number of clocks, and its >> frequency differs from Hamoa. >> - GPU: Purwa requires a separate firmware compared to Hamoa. > > Is it just a separate firmware, or does it use a different _GPU_? It uses a different GPU. > >> - USB0: Purwa uses a PS8833 retimer, while Hamoa uses an FSUSB42 as the >> SBU switch. >> > -- Best Regards, Yijie