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interconnect: qcom: Make important drivers default

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The interconnect drivers for Qualcomm SoC Network-on-Chip are covering a
basic or fundamental SoC feature: bandwidth management between internal
SoC blocks.  SoC can boot without these, but power management or
performance will be affected.  These drivers do not represent any sort
of buses visible to the board designers/configurators, thus they should
be always enabled, regardless how SoC is used in the final board.

Kernel configuration should not ask users choice of drivers when that
choice is obvious and known to the developers that answer should be
'yes' or 'module'.

Switch all almost Qualcomm interconnect drivers to a default 'yes' for
ARCH_QCOM.  This has impact:

1. arm64 defconfig:
   a. Enable as built-in INTERCONNECT_QCOM_HAWI, INTERCONNECT_QCOM_NORD,
      INTERCONNECT_QCOM_SDM660, INTERCONNECT_QCOM_SDM670,
      INTERCONNECT_QCOM_SM7150 and INTERCONNECT_QCOM_SAR2130P, which
      were not selected before but should be, because these platforms
      need them anyway for proper functioning.

   b. Switch to built-in from a module INTERCONNECT_QCOM_QCS404 and
      INTERCONNECT_QCOM_MSM8916, which as modules would not make the
      platform bootable in most cases, and INTERCONNECT_QCOM_OSM_L3,
      which when module might slow down boot considerably by having
      caches running at slow speed.

2. arm qcom_defconfig: Switch to built-in from a module
   INTERCONNECT_QCOM_RPMH, INTERCONNECT_QCOM_SMD_RPM,
   INTERCONNECT_QCOM_BCM_VOTER, INTERCONNECT_QCOM_MSM8974,
   INTERCONNECT_QCOM_SDX55, which as modules would not make the
   platform bootable in most cases.

3. arm multi_v7 defconfig: Enable drivers necessary to boot
   ARM 32-bit platforms, which are already enabled on qcom_defconfig:

   a. Enable as built-in INTERCONNECT_QCOM_MSM8974.
   b. Enable as modules (other dependencies prevent from built-in)
      INTERCONNECT_QCOM_RPMH, INTERCONNECT_QCOM_BCM_VOTER and
      INTERCONNECT_QCOM_SDX55.

4. COMPILE_TEST builds: Enable by default all drivers for arm or arm64
   builds, whenever ARCH_QCOM is selected.  This has impact on build
   time and feels logical, because if one selects ARCH_QCOM then
   probably by default wants to build test it entirely.  Kernels with
   COMPILE_TEST are not supposed to be used for booting.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20260720-interconnect-qcom-clean-arm64-v3-1-942e8ee7ebda@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2026-07-20 21:03:27 +02:00 committed by Georgi Djakov
parent b62f6c2765
commit bd2b723bae
1 changed files with 39 additions and 0 deletions
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39
drivers/interconnect/qcom/Kconfig
View File

@ -2,6 +2,7 @@
config INTERCONNECT_QCOM
tristate "Qualcomm Network-on-Chip interconnect drivers"
depends on ARCH_QCOM || COMPILE_TEST
default ARCH_QCOM
help
Support for Qualcomm's Network-on-Chip interconnect hardware.
@ -14,6 +15,7 @@ config INTERCONNECT_QCOM_ELIZA
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on Eliza-based
platforms.
@ -24,6 +26,7 @@ config INTERCONNECT_QCOM_GLYMUR
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on glymur-based
platforms.
@ -33,6 +36,7 @@ config INTERCONNECT_QCOM_HAWI
depends on INTERCONNECT_QCOM_RPMH_POSSIBLE
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on hawi-based
platforms.
@ -43,6 +47,7 @@ config INTERCONNECT_QCOM_KAANAPALI
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on kaanapali-based
platforms.
@ -72,6 +77,7 @@ config INTERCONNECT_QCOM_MSM8916
depends on INTERCONNECT_QCOM
depends on QCOM_SMD_RPM
select INTERCONNECT_QCOM_SMD_RPM
default ARCH_QCOM if ARM64
help
This is a driver for the Qualcomm Network-on-Chip on msm8916-based
platforms.
@ -100,6 +106,7 @@ config INTERCONNECT_QCOM_MSM8953
depends on QCOM_SMD_RPM
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_SMD_RPM
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on msm8953-based
platforms.
@ -110,6 +117,7 @@ config INTERCONNECT_QCOM_MSM8974
depends on QCOM_SMD_RPM
depends on ARM || COMPILE_TEST
select INTERCONNECT_QCOM_SMD_RPM
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on msm8974-based
platforms.
@ -130,6 +138,7 @@ config INTERCONNECT_QCOM_MSM8996
depends on QCOM_SMD_RPM
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_SMD_RPM
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on msm8996-based
platforms.
@ -139,6 +148,7 @@ config INTERCONNECT_QCOM_NORD
depends on INTERCONNECT_QCOM_RPMH_POSSIBLE
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on Nord-based
platforms. The topology consists of several NoCs controlled by
@ -149,6 +159,7 @@ config INTERCONNECT_QCOM_OSM_L3
tristate "Qualcomm OSM L3 interconnect driver"
depends on INTERCONNECT_QCOM || COMPILE_TEST
depends on ARM64 || COMPILE_TEST
default ARCH_QCOM
help
Say y here to support the Operating State Manager (OSM) interconnect
driver which controls the scaling of L3 caches on Qualcomm SoCs.
@ -159,6 +170,7 @@ config INTERCONNECT_QCOM_QCM2290
depends on QCOM_SMD_RPM
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_SMD_RPM
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on qcm2290-based
platforms.
@ -169,6 +181,7 @@ config INTERCONNECT_QCOM_QCS404
depends on QCOM_SMD_RPM
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_SMD_RPM
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on qcs404-based
platforms.
@ -179,6 +192,7 @@ config INTERCONNECT_QCOM_QCS615
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on qcs615-based
platforms.
@ -189,6 +203,7 @@ config INTERCONNECT_QCOM_QCS8300
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Technologies, Inc. Network-on-Chip
on QCS8300-based platforms. The interconnect provider collects and
@ -201,6 +216,7 @@ config INTERCONNECT_QCOM_QDU1000
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on QDU1000-based
and QRU1000-based platforms.
@ -225,6 +241,7 @@ config INTERCONNECT_QCOM_SA8775P
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sa8775p-based
platforms.
@ -235,6 +252,7 @@ config INTERCONNECT_QCOM_SAR2130P
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on SAR2130P-based
platforms.
@ -245,6 +263,7 @@ config INTERCONNECT_QCOM_SC7180
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sc7180-based
platforms.
@ -255,6 +274,7 @@ config INTERCONNECT_QCOM_SC7280
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sc7280-based
platforms.
@ -265,6 +285,7 @@ config INTERCONNECT_QCOM_SC8180X
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sc8180x-based
platforms.
@ -275,6 +296,7 @@ config INTERCONNECT_QCOM_SC8280XP
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on SC8280XP-based
platforms.
@ -285,6 +307,7 @@ config INTERCONNECT_QCOM_SDM660
depends on ARM64 || COMPILE_TEST
depends on QCOM_SMD_RPM
select INTERCONNECT_QCOM_SMD_RPM
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sdm660-based
platforms.
@ -295,6 +318,7 @@ config INTERCONNECT_QCOM_SDM670
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sdm670-based
platforms.
@ -305,6 +329,7 @@ config INTERCONNECT_QCOM_SDM845
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sdm845-based
platforms.
@ -315,6 +340,7 @@ config INTERCONNECT_QCOM_SDX55
depends on ARM || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sdx55-based
platforms.
@ -335,6 +361,7 @@ config INTERCONNECT_QCOM_SDX75
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sdx75-based
platforms.
@ -355,6 +382,7 @@ config INTERCONNECT_QCOM_SM6115
depends on QCOM_SMD_RPM
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_SMD_RPM
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sm6115-based
platforms.
@ -365,6 +393,7 @@ config INTERCONNECT_QCOM_SM6350
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sm6350-based
platforms.
@ -375,6 +404,7 @@ config INTERCONNECT_QCOM_SM7150
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sm7150-based
platforms.
@ -385,6 +415,7 @@ config INTERCONNECT_QCOM_MILOS
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on Milos-based
platforms.
@ -395,6 +426,7 @@ config INTERCONNECT_QCOM_SM8150
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sm8150-based
platforms.
@ -405,6 +437,7 @@ config INTERCONNECT_QCOM_SM8250
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on sm8250-based
platforms.
@ -415,6 +448,7 @@ config INTERCONNECT_QCOM_SM8350
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on SM8350-based
platforms.
@ -425,6 +459,7 @@ config INTERCONNECT_QCOM_SM8450
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on SM8450-based
platforms.
@ -435,6 +470,7 @@ config INTERCONNECT_QCOM_SM8550
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on SM8550-based
platforms.
@ -445,6 +481,7 @@ config INTERCONNECT_QCOM_SM8650
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on SM8650-based
platforms.
@ -455,6 +492,7 @@ config INTERCONNECT_QCOM_SM8750
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on SM8750-based
platforms.
@ -465,6 +503,7 @@ config INTERCONNECT_QCOM_X1E80100
depends on ARM64 || COMPILE_TEST
select INTERCONNECT_QCOM_RPMH
select INTERCONNECT_QCOM_BCM_VOTER
default ARCH_QCOM
help
This is a driver for the Qualcomm Network-on-Chip on X1E80100-based
platforms.