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Wed, 24 Jun 2026 05:12:22 -0700 (PDT) X-Received: by 2002:a05:620a:808b:b0:915:4ca0:1210 with SMTP id af79cd13be357-925c95b20b4mr930672185a.3.1782303142014; Wed, 24 Jun 2026 05:12:22 -0700 (PDT) Received: from [192.168.120.170] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c0c5e49aa07sm650190966b.10.2026.06.24.05.12.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 24 Jun 2026 05:12:20 -0700 (PDT) Message-ID: Date: Wed, 24 Jun 2026 14:12:18 +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 v4 3/3] arm64: dts: qcom: Add Vicharak Axon Mini To: Ajit Singh Cc: Bjorn Andersson , Bartosz Golaszewski , Dmitry Baryshkov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260607113658.25117-1-blfizzyy@gmail.com> <20260607113658.25117-4-blfizzyy@gmail.com> <39228ace-9404-4ade-bcb1-28e763548b7f@oss.qualcomm.com> <5c80c430-8bc7-4d03-be7e-c6dd518705e7@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjI0MDA5OSBTYWx0ZWRfX0r5DqePY5zO/ Sp7HC9Z7FojokSt8TpDl+4kTIHgg+PwZEp0fJ/RmMQpi4WGeXunuw6YJEBdmvGzbfPc4aX/fv/K YsOBspvgC6N4CBj3mqPGyf2kA7Gjf/jdFnQypjFquce7b46+fFoX3TCeCGmJStpggKhpJ3bZoUE jDpYukK/TuF8Tddp6hKgQTKMY4LrEhlQrUZtS5CVjd/nAekTb4PlvycFb2n6gyJKDW52gsXrCmU c/aS9MYJzP1t1JAi+Ahp+J9AcP/g5LdJLBuSC1YmXPk3AJSKg7JIDygpzLvSXms29ega8an8q+w BiQYJH13/Tf1lvXXqnrRWu9Jh0GmZyt4M7FwAQqbq1CWTXYTtMjW7zjPx8BqmQ4PCgbPRfdUJhw P8XHrweEvaHOA77arcy7bd9jRO5p9YmdATVFscSWeR7yUXXADECdby2rG++mgrRLEGOm0xLPyeG bbdsJevPYb1X8gelVbA== X-Proofpoint-ORIG-GUID: Mk36_AJ5YCHCQHs8iH8Up1BV17MyZUgw X-Proofpoint-GUID: Mk36_AJ5YCHCQHs8iH8Up1BV17MyZUgw X-Proofpoint-Spam-Info: AW1haW4tMjYwNjI0MDA5OSBTYWx0ZWRfX4G7KF+Zm42oJ Kut0ZhMOxStFIZMDua2f0PR9MtBRyhcHpb9WVQPXIuUaWjDCn+6RX1m3+Pal6oKqiTkYwuiqb4m hdtziBpQYtFFUrTvtDVeK3S7TXtRvYs= X-Authority-Analysis: v=2.4 cv=JbaMa0KV c=1 sm=1 tr=0 ts=6a3bc9a7 cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=pGLkceISAAAA:8 a=rCQGlBV6-1WLTuut6Q0A:9 a=QEXdDO2ut3YA:10 a=dawVfQjAaf238kedN5IG:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-24_03,2026-06-23_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 phishscore=0 lowpriorityscore=0 spamscore=0 malwarescore=0 suspectscore=0 adultscore=0 impostorscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606240099 On 6/20/26 6:57 AM, Ajit Singh wrote: > On Fri, Jun 19, 2026 at 05:30:40PM +0530, Konrad Dybcio wrote: >> On 6/18/26 8:29 AM, Ajit Singh wrote: >>> On Tue, Jun 16, 2026 at 02:10:44PM +0530, Konrad Dybcio wrote: >>>> On 6/12/26 6:16 AM, Ajit Singh wrote: >>>>> On Wed, Jun 10, 2026 at 02:58:19PM +0530, Konrad Dybcio wrote: >>>>>> On 6/7/26 1:36 PM, Ajit Singh wrote: >>>>>>> Add DTS for the Vicharak Axon Mini board based on the Qualcomm >>>>>>> QCS6490 SoC. >>>>>>> >>>>>>> This adds debug UART, eMMC, UFS, SDIO WLAN, USB 2.0 host, PCIe >>>>>>> support along with regulators. >>>>>>> >>>>>>> The UFS ICE block is kept disabled because enabling it currently causes >>>>>>> an SError during qcom_ice_create() on this board. UFS works without ICE. >>>>>>> >>>>>>> Signed-off-by: Ajit Singh >>>>>>> --- [...] >> >> most notably though, it seems that the brcmfmac driver doesn't even use >> the regulator framework, probably because all of the SDIO WLANs that >> Linux supports were wired in a more "embedded" way, where the V(Q)MMC >> supplies were enough.. unless it's the case here too? > > It might not be possible to drop regulator-always-on for VREG_L12C here. The > SDHC2 host already has its own vmmc/vqmmc rails: > > vqmmc-supply = <&vreg_l2c_1p62>; > vmmc-supply = <&vreg_l6c_2p96>; > > VREG_L12C is a separate module-side VDDIO rail for the AP6272S WLAN/BT module. > There is no separate GPIO-controlled enable for this rail; > > as you said, since brcmfmac does not appear to consume an extra VDDIO regulator > from the SDIO child node, so unless there is a preferred way to model this > module-side VDDIO rail, I think VREG_L12C still needs to stay always-on. OK, let's get this merged then Konrad