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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b9c3cec6c3csm745695766b.29.2026.04.09.04.24.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 09 Apr 2026 04:24:55 -0700 (PDT) Message-ID: Date: Thu, 9 Apr 2026 13:24:53 +0200 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 v2 5/5] arm64: dts: qcom: qcs8550: add QCS8550 RB5Gen2 board support To: Joe Sandom Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260407-rb5gen2-dts-v2-0-d0c7f447ee73@axon.com> <20260407-rb5gen2-dts-v2-5-d0c7f447ee73@axon.com> <4359bb07-d848-4b77-b1a9-f1c6f53caa10@oss.qualcomm.com> <20260409112309.vaibvwsmfdjardvy@linaro> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260409112309.vaibvwsmfdjardvy@linaro> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDA5MDEwMiBTYWx0ZWRfX6dhfi5uwa2WD yxCe3paDV0IPHVUJoAI2IJTdYOlWgr4201vNGyqM9OUgmd/GvlkQrqdN/dQsqIy/GwvCsTZrqOV YEgeRis6f9//Hzrp2EUTKzolfWAGmC1zi61wTgLnLBWkbEvOgTPV7hs9Y2JFGT+QDl8sdU1SanC uiORRDmg24+hDrs3n2ZUc2dYg3duaGZ0E5OqUGW76qXAFdNjkKgs0GEhC/bQIOlGo6WkA1w6nuY T9UgPPUDj50XQt3/EJcL5t41xCvI8m/9ZWs+MWPxWEw0Cmd3SzcEOz2grmy9Up6K2d3XPGNKtIN qEfwkZt0SksjFB7QGLj9iBObkxARSJJGyku1wU+4Nwbi0yuyckKkxW5kFMrJt9j2WZEC0cR27rb fLnaFYhHQze3tbeIwaZnKYiUMvyNOxE2umd7z30/zb5Z3+qTNw0sZNrI8121mNak4757dKkIg/R g7Vb0WqNb7NwoO9Fvgw== X-Authority-Analysis: v=2.4 cv=eKIjSnp1 c=1 sm=1 tr=0 ts=69d78c8a cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=h77gEMGJAAAA:8 a=fZ3KsY-qWbNI7JLrVigA:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 a=PYyYjrCoJcZo81GydsRF:22 X-Proofpoint-GUID: AS6xW4Y0bY0HEVu3vLLZBOczo0uoKUgy X-Proofpoint-ORIG-GUID: AS6xW4Y0bY0HEVu3vLLZBOczo0uoKUgy 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=2026-04-09_03,2026-04-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 clxscore=1015 spamscore=0 suspectscore=0 malwarescore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604090102 On 4/9/26 1:23 PM, Joe Sandom wrote: > On Wed, Apr 08, 2026 at 11:57:18AM +0200, Konrad Dybcio wrote: >> On 4/7/26 5:46 PM, Joe Sandom via B4 Relay wrote: >>> From: Joe Sandom [...] >>> + can@0 { >>> + compatible = "microchip,mcp2518fd"; >>> + reg = <0>; >>> + interrupts-extended = <&tlmm 55 IRQ_TYPE_LEVEL_LOW>; >>> + clocks = <&clk40m>; >>> + spi-max-frequency = <10000000>; >>> + vdd-supply = <&vreg_l14b_3p2>; >>> + xceiver-supply = <&vreg_l14b_3p2>; >> >> It may be that for this chip to actually be able to communiate with devices >> on the bus, you need to set the new 'microchip,xstbyen' property >> >> see: >> >> https://urldefense.com/v3/__https://lore.kernel.org/linux-arm-msm/20260321135031.3107408-1-viken.dadhaniya@oss.qualcomm.com/__;!!K76kBA!3JvIWVouSl6ZkbxojAFYUus-8UPRvjrHx0qENKOyIIBpZ9knecOfH0NCBAr8ESxNXg2H6982UXqs_8QyR_k9NuKnmA$ >> > Good to know. Confirmed that it will be needed. > Happy to provide a follow-up patch once the above series lands if that > works for you? Sure thing, thanks for confirming! Konrad