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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7ff7e48f3d7sm15071184b3a.51.2025.12.23.18.02.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 23 Dec 2025 18:02:53 -0800 (PST) Message-ID: Date: Wed, 24 Dec 2025 10:02:47 +0800 Precedence: bulk X-Mailing-List: linux-arm-msm@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: Konrad Dybcio , 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> <0593cc2e-0114-404f-929a-0860d60afefb@oss.qualcomm.com> Content-Language: en-US From: Yijie Yang In-Reply-To: <0593cc2e-0114-404f-929a-0860d60afefb@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: 4hefda6YZfZYKYb0PwAK83GQjNQz209D X-Authority-Analysis: v=2.4 cv=abZsXBot c=1 sm=1 tr=0 ts=694b49cf cx=c_pps a=mDZGXZTwRPZaeRUbqKGCBw==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=OLCPRHAsNVESI9y_fZsA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=zc0IvFSfCIW2DFIPzwfm:22 X-Proofpoint-GUID: 4hefda6YZfZYKYb0PwAK83GQjNQz209D X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjI0MDAxNSBTYWx0ZWRfXzXB61TCFyGbr ntX4TkTBlgJQ5v7ek39xEFc22NNick0CwG16F8T3HkWwJUFxBJ87XFr7EeJbrTJOIPRmVvAqOHI PIfc/ujYDxZ1opinKyNkm7M+ktn9G8pa6D1yFYZgRX0fU4pltTDJGQ6YRth48aHGyjb1L18I9LQ FuUy/kYb97BDfl53Ukdgtq6nSQEu3M/ff1kTSdTS+zrNM1nCMnPqfGyqDP7EL7NlDhWaUZ9zdu1 C7y8d7jV7ovfqXdBmVPg3w7WXQaQ7Z/Ab0ispgiipYN8ZWB1MLDX+Gn/TEjF8s2Ke0NhoZOz2KC wdyz1SMaT1cH9+06mJ24g+dOR1B26sPvqThh/TbLO8eOBSHIokyIdHfMXTNt9DRHg0HGs/den7L No5XUBI+NHNgm1tH9pLO6I73gmxgvqBmsp8Oe53nsKsC+ZaR3k5+3iPyXqyz3XNiC/IjOQsp61D fi49pEa6MGg+qyMai4A== 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=2025-12-23_05,2025-12-22_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 spamscore=0 clxscore=1015 malwarescore=0 phishscore=0 suspectscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2512240015 On 12/24/2025 1:27 AM, Konrad Dybcio wrote: > On 12/23/25 3:12 AM, Yijie Yang wrote: >> >> >> 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. > > I think it would be useful to call this paragraph "Hardware delta between > Hamoa-IoT-SoM/EVK and Purwa-IoT-whatever - because now Dmitry is asking > about differences between Hamoa-the-SoC and Purwa-the-SoC which we > expressed in purwa.dtsi I want to provide readers with a comprehensive comparison of the two boards, Hamoa-IoT-EVK and Purwa-IoT-EVK, covering all differences in both the SOM and the carrier board. > > Konrad > >> >>> >>>> - USB0: Purwa uses a PS8833 retimer, while Hamoa uses an FSUSB42 as the >>>>    SBU switch. >>>> >>> >> -- Best Regards, Yijie