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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8fc735e579sm446421866b.9.2026.02.18.02.43.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Feb 2026 02:43:54 -0800 (PST) Message-ID: <0ab7afc8-e821-432b-bcf7-6c18357326df@oss.qualcomm.com> Date: Wed, 18 Feb 2026 11:43:52 +0100 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 v3 2/2] arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: Add second TC9563 PCIe switch node for PCIe1 To: Sushrut Shree Trivedi , 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, Dmitry Baryshkov References: <20260212-industrial-mezzanine-pcie-v3-0-1e152937a76a@oss.qualcomm.com> <20260212-industrial-mezzanine-pcie-v3-2-1e152937a76a@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260212-industrial-mezzanine-pcie-v3-2-1e152937a76a@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=K60v3iWI c=1 sm=1 tr=0 ts=699597ec cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=EUspDBNiAAAA:8 a=FfkM9IfYcGvahPrPZG4A:9 a=QEXdDO2ut3YA:10 a=IoWCM6iH3mJn3m4BftBB:22 X-Proofpoint-GUID: IwCGgdR53rCHW2f82BX-UnSRlKnuPfsS X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjE4MDA5NSBTYWx0ZWRfX/YwMBT1CQ4qd lvDLjezjPUDpQ2cZ7QyD86P8k4kd6LORuLT1o34QHnLhO2qW9Z8iuObrsjHdrvEwrch5/wq5971 lW4RQkP9afXAvEqXmihyQCXGv7rodY35Cm+xhbm8Yv71aecGXR0RHapNg8D9aomvY5+vlZt4vcF UW5MrQkmgQlDwBwbGXd5ZSdZ0GkDTRD3ZZu7gDRNS41rSW2DW62Zdsi02uYnGfpwRNWHWU53+r0 13C+0kRMnqKQz7GnFnPntOvIBl4wzvCz7wJWywLs0Vg/0Blj96g+z4dZT/eKG8yjP0fdk0lIsN7 NpsDOoNX2O8lUpjVVErLgNlNI1ak63FE0dYhpZAl5K7zHxq1MtrbCoSxntC98Ai2XkWXGJTunDP 3C1hjlpuk/tprMvWRR4brlLv101jqWkv6qi/niIfxEWUAHzY5jeAp6ltlyFnPX2V+lMCD7mwm+y 8F4wpzbr4e4+vGsXJ/A== X-Proofpoint-ORIG-GUID: IwCGgdR53rCHW2f82BX-UnSRlKnuPfsS X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-18_01,2026-02-16_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 clxscore=1015 malwarescore=0 priorityscore=1501 spamscore=0 impostorscore=0 bulkscore=0 suspectscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602180095 On 2/12/26 11:44 AM, Sushrut Shree Trivedi wrote: > Add a node for the second TC9563 PCIe switch on PCIe1, which is connected > in cascade to the first TC9563 switch via the former's downstream port. > > Two embedded Ethernet devices are present on one of the downstream > ports of this second switch as well. All the ports present in the > node represent the downstream ports and embedded endpoints. > > The second TC9563 is powered up via the same LDO regulators as the first > one, and these can be controlled via two GPIOs, which are already present > as fixed regulators. This TC9563 can also be configured through I2C. > > Signed-off-by: Sushrut Shree Trivedi > --- Reviewed-by: Konrad Dybcio Konrad