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Wed, 29 Apr 2026 02:10:27 -0700 (PDT) X-Received: by 2002:a05:622a:1e89:b0:50d:cd5a:577b with SMTP id d75a77b69052e-51018a34651mr44472391cf.35.1777453826893; Wed, 29 Apr 2026 02:10:26 -0700 (PDT) Received: from [192.168.1.29] ([178.197.219.94]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48a7bc7a359sm64972395e9.10.2026.04.29.02.10.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 29 Apr 2026 02:10:26 -0700 (PDT) Message-ID: <4f2d364c-6e36-4678-b01d-e5d0924c9a78@oss.qualcomm.com> Date: Wed, 29 Apr 2026 11:10:24 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/4] soc: qcom: Restrict drivers per ARM/ARM64 To: Konrad Dybcio , Bjorn Andersson , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <20260429-qcom-soc-kconfig-v1-0-69ba540b3fe9@oss.qualcomm.com> <20260429-qcom-soc-kconfig-v1-2-69ba540b3fe9@oss.qualcomm.com> <527a434e-5ac6-4a79-91e7-bf8bac4adb84@oss.qualcomm.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzysztof.kozlowski@oss.qualcomm.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: _UV92mZXLfFnjpQBQP_BmC0inUIn4vEF X-Authority-Analysis: v=2.4 cv=eeANubEH c=1 sm=1 tr=0 ts=69f1cb04 cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=gOEeR9iKwsj33Yj5oN/cWg==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=EUspDBNiAAAA:8 a=m3SF6izIDSniu5dlxVkA:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDI5MDA5MSBTYWx0ZWRfX8pVRsrqOEfFi 1tKs+KzQ2M3az9KW7QqPnRG6Ix8yzxLkvwVi8udv02g13tWsz9eUOxhwOPdDibRuMP3mMiB4sX1 jMDt3+a8qoY+2ikqEAvx4gUGG/llyHkT9e1u+f7cTEquqsiq+MqTXKJwDreQvZmwn23nD5kTFb/ ZvH1fpz4p7sNibe/Ini0BGlD0YUs/yLZTnbsLcK1/J3hPpsVGWg+UA4tMZ5NK0P3pB2sM9p14v2 5vEswSfnLdOpXYJvyLFKC1obEJSoPTms358h9oJlLp32XbWLsCx6HCvwQqB2JQK7Z/Lmo+QnXTx 10ifJ9gV88Netn+IKo8feXGt+DOnxVrFZnvfpUi+1G+q72WfAfGGf4ADJZFC+eeHEj9J8wOa9eu AOnVN8ShgIkshRXuqT2/GQOeR4n/1DP+nR5zNY5vpyj4hJYdpWINqT1YLdzyCcJeX5yhYFF+ANd t699v8Fqns+A98F8S8g== X-Proofpoint-ORIG-GUID: _UV92mZXLfFnjpQBQP_BmC0inUIn4vEF 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=2026-04-28_05,2026-04-28_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 adultscore=0 clxscore=1015 malwarescore=0 impostorscore=0 phishscore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604290091 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260429_021029_350305_5EDD5A09 X-CRM114-Status: GOOD ( 25.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 29/04/2026 11:03, Konrad Dybcio wrote: > On 4/29/26 10:56 AM, Krzysztof Kozlowski wrote: >> There is no point to allow selecting core SoC drivers for Qualcomm ARMv7 >> SoCs when building ARM64 kernel, and vice versa. >> >> This makes kernel configuration more difficult as many do not remember >> the Qualcomm SoCs model names/numbers and their properties like >> architecture. No features should be lost because: >> 1. There won't be a single image for ARMv7 and ARMv8/9 SoCs. >> 2. Newer ARMv8/9 SoCs won't be running in arm32 emulation mode. >> >> Signed-off-by: Krzysztof Kozlowski >> --- > > [...] > >> drivers/soc/qcom/Kconfig | 8 ++++++++ >> 1 file changed, 8 insertions(+) >> >> diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig >> index 62ce1c67d684..9a050ba1dbcb 100644 >> --- a/drivers/soc/qcom/Kconfig >> +++ b/drivers/soc/qcom/Kconfig >> @@ -19,6 +19,7 @@ config QCOM_AOSS_QMP >> tristate "Qualcomm AOSS Driver" >> depends on MAILBOX >> depends on COMMON_CLK && PM >> + depends on ARM64 || COMPILE_TEST > > SDX65 Ack, although not in upstream DTS. > >> select PM_GENERIC_DOMAINS >> help >> This driver provides the means of communicating with and controlling >> @@ -37,6 +38,7 @@ config QCOM_COMMAND_DB >> >> config QCOM_GENI_SE >> tristate "QCOM GENI Serial Engine Driver" >> + depends on ARM64 || COMPILE_TEST > > OK > >> help >> This driver is used to manage Generic Interface (GENI) firmware based >> Qualcomm Technologies, Inc. Universal Peripheral (QUP) Wrapper. This >> @@ -45,6 +47,7 @@ config QCOM_GENI_SE >> >> config QCOM_GSBI >> tristate "QCOM General Serial Bus Interface" >> + depends on ARM || COMPILE_TEST > > OK > >> select MFD_SYSCON >> help >> Say y here to enable GSBI support. The GSBI provides control >> @@ -53,6 +56,7 @@ config QCOM_GSBI >> >> config QCOM_LLCC >> tristate "Qualcomm Technologies, Inc. LLCC driver" >> + depends on ARM64 || COMPILE_TEST > > SDX65 Ack > >> select REGMAP_MMIO >> help >> Qualcomm Technologies, Inc. platform specific >> @@ -108,6 +112,7 @@ config QCOM_PMIC_GLINK >> depends on DRM >> depends on NET >> depends on OF >> + depends on ARM64 || COMPILE_TEST > > Probably OK? > >> select AUXILIARY_BUS >> select QCOM_PDR_HELPERS >> select DRM_AUX_HPD_BRIDGE >> @@ -242,6 +247,7 @@ config QCOM_APR >> tristate "Qualcomm APR/GPR Bus (Asynchronous/Generic Packet Router)" >> depends on RPMSG >> depends on NET >> + depends on ARM64 || COMPILE_TEST > > This I think goes back to <2012 SoCs It could, but there is no upstream DTS in arm32. It is however in few old like 8916 which might be running in arm32 mode, so I guess better to drop it. > >> select QCOM_PDR_HELPERS >> help >> Enable APR IPC protocol support between >> @@ -251,6 +257,7 @@ config QCOM_APR >> >> config QCOM_ICC_BWMON >> tristate "QCOM Interconnect Bandwidth Monitor driver" >> + depends on ARM64 || COMPILE_TEST > > This is OK currently, some arm32 targets have an older (unsupported today) > BWMON, I don't know if they would be using the same driver or not They would get their own compatible, thus driver would be changed. The depends here is for current driver. > >> select PM_OPP >> select REGMAP_MMIO >> help >> @@ -265,6 +272,7 @@ config QCOM_ICC_BWMON >> >> config QCOM_PBS >> tristate "PBS trigger support for Qualcomm Technologies, Inc. PMICS" >> + depends on ARM64 || COMPILE_TEST > > MSM8909+PM660 exists and makes use of that Well, not in upstream, but I get your point. > > Konrad Best regards, Krzysztof