Commit graph

1,464,536 commits

Author SHA1 Message Date
Mark Brown
1ec281b42e
spi: use modern PM macros
Jisheng Zhang <jszhang@kernel.org> says:

Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards or
__maybe_unused.

Compiled testd for arm, arm64, riscv and riscv64 with below
combinations:
!PM && !PM_SLEEP
PM && !PM_SLEEP
PM && PM_SLEEP

Link: https://patch.msgid.link/20260803142003.12857-1-jszhang@kernel.org
2026-08-07 18:58:32 +01:00
Jisheng Zhang
bec2ec4186
spi: zynqmp-gqspi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-40-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:30 +01:00
Jisheng Zhang
2dae40e9dc
spi: topcliff-pch: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

At the same time, for pch_spi_pd_driver, we also switch to modern
driver.pm for pm ops.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-39-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:29 +01:00
Jisheng Zhang
e3f3d046f3
spi: tegra210-quad: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-38-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:28 +01:00
Jisheng Zhang
355848a0f9
spi: tegra20-slink: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards or
__maybe_unused.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-37-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:26 +01:00
Jisheng Zhang
f4bc18af3b
spi: tegra20-sflash: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-36-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:25 +01:00
Jisheng Zhang
46aec256a5
spi: tegra114: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-35-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:23 +01:00
Jisheng Zhang
7bf07ac9be
spi: syncuacer: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-34-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:22 +01:00
Jisheng Zhang
3c71dabf59
spi: sunplus-sp7021: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards or
__maybe_unused.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-33-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:20 +01:00
Jisheng Zhang
96e9434dee
spi: sprd: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-32-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:18 +01:00
Jisheng Zhang
abc34022d6
spi: slave-mt27xx: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-31-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:16 +01:00
Jisheng Zhang
1c892a2f00
spi: s3c64xx: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-30-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:15 +01:00
Jisheng Zhang
c88fb94321
spi: rockchip: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-29-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:14 +01:00
Jisheng Zhang
07d3854ade
spi: rockchip-sfc: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-28-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:06 +01:00
Jisheng Zhang
d87ae27783
spi: qup: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-27-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:04 +01:00
Jisheng Zhang
498e32cba4
spi: spi-qcom-qspi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-26-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:03 +01:00
Jisheng Zhang
9329021dcb
spi: pl022: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-25-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:02 +01:00
Jisheng Zhang
4fbaf6e6f1
spi: orion: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-24-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:01 +01:00
Jisheng Zhang
aa9d02583a
spi: omap2-mcspi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-23-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:58:00 +01:00
Jisheng Zhang
169d9f0fd9
spi: mxic: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-22-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:59 +01:00
Jisheng Zhang
fcb6a6e73e
spi: mtk-nor: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-21-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:58 +01:00
Jisheng Zhang
06f9d950cb
spi: mt65xx: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-20-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:57 +01:00
Jisheng Zhang
aceceea2a4
spi: meson-spifc: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-19-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:56 +01:00
Jisheng Zhang
8de18aced4
spi: loongson: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-18-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:55 +01:00
Jisheng Zhang
88672e90a9
spi: img-spfi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-17-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:54 +01:00
Jisheng Zhang
527adbf1a1
spi: qcom-geni: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-16-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:53 +01:00
Jisheng Zhang
4f6d93537f
spi: fsl-lpspi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-15-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:52 +01:00
Jisheng Zhang
4669d74be6
spi: fsl-espi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-14-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:51 +01:00
Jisheng Zhang
cda6ef242a
spi: spi-fsl-dspi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-13-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:50 +01:00
Jisheng Zhang
65172b5d38
spi: dw-pci: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-12-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:49 +01:00
Jisheng Zhang
a0b764e3ec
spi: dln2: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-11-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:49 +01:00
Jisheng Zhang
7975bfcf50
spi: coldfire-qspi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-10-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:48 +01:00
Jisheng Zhang
1e64a06711
spi: cadence: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-9-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:47 +01:00
Jisheng Zhang
f95bf30ed1
spi: bcmbca-hsspi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: William Zhang <william.zhang@broadcom.com>
Link: https://patch.msgid.link/20260803142003.12857-8-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:46 +01:00
Jisheng Zhang
408ba1d06e
spi: bcm63xx-hsspi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: William Zhang <william.zhang@broadcom.com>
Link: https://patch.msgid.link/20260803142003.12857-7-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:45 +01:00
Jisheng Zhang
6062e0f204
spi: bcm-qspi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-6-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:44 +01:00
Jisheng Zhang
a7fe79fd31
spi: axiado: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-5-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:43 +01:00
Jisheng Zhang
363557bf4d
spi: at91-usart: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-4-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:42 +01:00
Jisheng Zhang
6fe48b9952
spi: amlogic-spifc-a1: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-3-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:41 +01:00
Jisheng Zhang
c4a452dd40
spi: atmel-quadspi: use modern PM macros
Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use __maybe_unused.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260803142003.12857-2-jszhang@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-07 18:57:40 +01:00
Mark Brown
a2d6aa3b84
spi: add new_device/delete_device sysfs interface
Vishwaroop A <va@nvidia.com> says:

Add I2C-style new_device/delete_device sysfs attributes to SPI host
controllers, allowing userspace to instantiate and remove SPI devices
at runtime without device-tree changes.

Patch 1 adds the new_device/delete_device attributes and the supporting
infrastructure (userspace_clients list, manual sysfs group registration).
Patch 2 adds the ABI and user-facing documentation.

Link: https://lore.kernel.org/linux-spi/20260728191056.2337791-1-va@nvidia.com/  # v8
Link: https://lore.kernel.org/linux-spi/20260728030541.2279518-1-va@nvidia.com/  # v7
Link: https://lore.kernel.org/linux-spi/cover.1784000000.git.va@nvidia.com/  # v6
Link: https://lore.kernel.org/linux-spi/20260517201602.498135-1-va@nvidia.com/  # v5
Link: https://lore.kernel.org/linux-tegra/909f0c92-d110-4253-903e-5c81e21e12c9@nvidia.com/
Link: https://patch.msgid.link/20260803104614.2548375-1-va@nvidia.com
2026-08-06 19:13:17 +01:00
Vishwaroop A
036d4b059b
docs: spi: add documentation for userspace device instantiation
Document the new_device and delete_device sysfs attributes on SPI
controllers:

  - Documentation/spi/instantiating-devices.rst: describes when and
    why this interface is needed, accepted parameters, usage examples,
    and limitations.
  - Documentation/ABI/testing/sysfs-class-spi-master: formal ABI
    entry for both attributes.

Signed-off-by: Vishwaroop A <va@nvidia.com>
Link: https://patch.msgid.link/20260803104614.2548375-3-va@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-06 19:13:15 +01:00
Vishwaroop A
e0db3f62db
spi: add new_device/delete_device sysfs interface
Development boards such as the Jetson AGX Orin expose SPI buses
on expansion headers (e.g. the 40-pin header) so that users can
connect and interact with SPI peripherals from userspace. The
standard way to get /dev/spidevB.C character device nodes for
this purpose is to register spi_device instances backed by the
spidev driver.

Today there is no viable way to do this on upstream kernels:

  - The spidev driver rejects the bare "spidev" compatible
    string in DT, since spidev is a Linux software interface
    and not a description of real hardware.
  - Vendor-specific compatible strings (e.g. "nvidia,tegra-spidev")
    have been rejected by DT maintainers for the same reason.

The I2C subsystem solved an analogous problem by exposing
new_device/delete_device sysfs attributes on each adapter. Add
the same interface to SPI host controllers, so that userspace
(e.g. a systemd unit at boot) can instantiate SPI devices at
runtime without needing anything in device-tree.

The new_device file accepts:

  <modalias> <chip_select> [<max_speed_hz> [<mode>]]

where chip_select is required, while max_speed_hz and mode are
optional and default to 0 if omitted. max_speed_hz == 0 is
clamped to the controller's maximum by spi_setup(); mode == 0
selects SPI mode 0 (CPOL=0, CPHA=0).

The modalias is used both as the device identifier and as a
driver_override, so that the device binds to the named driver
directly. This is necessary because some drivers like spidev
deliberately exclude generic names from their id_table.

Devices created this way are limited compared to those declared
via DT or board files:

  - No IRQ is assigned (the device gets IRQ 0 / no interrupt).
  - No platform_data or device properties are attached.
  - No OF node is associated with the device.

These limitations are acceptable for spidev, which only needs a
registered spi_device to expose a character device to userspace.

Only devices created via new_device can be removed through
delete_device; DT and platform devices are unaffected.

The sysfs attributes are gated behind CONFIG_SPI_DYNAMIC since
this feature adds a new way of dynamically instantiating and
removing SPI devices, and the add_lock locking in
spi_unregister_controller() is already conditional on
CONFIG_SPI_DYNAMIC.

The userspace sysfs group is created manually as the last step
of spi_register_controller() and removed as the first step of
spi_unregister_controller().  Removing the group before taking
add_lock means kernfs_drain() completes any in-flight
new_device_store()/delete_device_store() calls before
add_lock is acquired, so unregister never blocks on a store
that is itself waiting for add_lock and no store can be
touching an spi_device that is about to be torn down.

Non-sysfs callers of __spi_add_device() (DT/ACPI dynamic add,
ancillary registration) continue to be protected by the
pre-existing !device_is_registered(&ctlr->dev) check added in
commit ddf75be47c ("spi: Prevent adding devices below an
unregistering controller"): device_del(&ctlr->dev) runs inside
add_lock in spi_unregister_controller() so state_in_sysfs flips
to 0 before add_lock is released.

Link: https://lore.kernel.org/linux-tegra/909f0c92-d110-4253-903e-5c81e21e12c9@nvidia.com/

Signed-off-by: Vishwaroop A <va@nvidia.com>
Link: https://patch.msgid.link/20260803104614.2548375-2-va@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-06 19:13:13 +01:00
Rosen Penev
362a11ef1b
spi: ath79: use devm everywhere in probe
Use devm_spi_alloc_host() instead of spi_alloc_host() so that the spi
controller is automatically freed on probe failure or device removal.
This lets us eliminate the err_put_host label and goto error path in
probe, as well as the spi_controller_put() call in remove.

It's also a bit weird as everything in probe is using devm except the
first allocating function. Might fix an ordering issue on teardown.

Assisted-by: opencode:big-pickle
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20260727201543.18857-1-rosenp@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-05 00:11:46 +01:00
Can Peng
d2f5a60671
spi: bcmbca-hsspi: disable clocks on resume failure
bcmbca_hsspi_resume() enables the HSSPI clock, and optionally the PLL
clock, before restarting the SPI controller queue.

If spi_controller_resume() fails, the function currently reports success
and leaves those clocks enabled. Propagate the error and disable the
clocks before returning.

Fixes: a38a2233f2 ("spi: bcmbca-hsspi: Add driver for newer HSSPI controller")
Cc: stable@vger.kernel.org
Signed-off-by: Can Peng <pengcan@kylinos.cn>
Reviewed-by: Kursad Oney <kursad.oney@broadcom.com>
Link: https://patch.msgid.link/20260804071904.860842-1-pengcan@kylinos.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-04 21:04:13 +01:00
Can Peng
2b62c2c134
spi: bcm63xx: disable clock on resume failure
bcm63xx_spi_resume() enables the controller clock before restarting the
SPI controller queue.

If spi_controller_resume() fails, the function currently reports success
and leaves the clock enabled. Propagate the error and disable the clock
before returning.

Fixes: b42dfed83d ("spi: add Broadcom BCM63xx SPI controller driver")
Cc: stable@vger.kernel.org
Signed-off-by: Can Peng <pengcan@kylinos.cn>
Link: https://patch.msgid.link/20260804071831.860784-1-pengcan@kylinos.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-04 19:31:32 +01:00
Can Peng
3b0cee0266
spi: bcm63xx-hsspi: disable clocks on resume failure
bcm63xx_hsspi_resume() enables the HSSPI clock, and optionally the PLL
clock, before restarting the SPI controller queue.

If spi_controller_resume() fails, the function currently reports success
and leaves those clocks enabled. Propagate the error and disable the
clocks before returning.

Fixes: 142168eba9 ("spi: bcm63xx-hsspi: add bcm63xx HSSPI driver")
Cc: stable@vger.kernel.org
Signed-off-by: Can Peng <pengcan@kylinos.cn>
Reviewed-by: Kursad Oney <kursad.oney@broadcom.com>
Link: https://patch.msgid.link/20260804072017.860974-1-pengcan@kylinos.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-04 19:14:38 +01:00
Mark Brown
2766401a92
spi: Few cleanups while looking at num-cs
Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> says:

Few minor cleanups for DT bindings and Andes driver.

Patches do not have inter-dependencies.

Link: https://patch.msgid.link/20260804-spi-num-cs-v1-0-4ccb13dcc7b0@oss.qualcomm.com
2026-08-04 18:51:38 +01:00
Krzysztof Kozlowski
463c840f54
spi: atcspi200: Drop redundant andestech,qilai-spi compatible
"andestech,qilai-spi" compatible can only be used with a fallback, which
is already matched by the driver's OF device ID table, thus it is
redundant in the driver.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260804-spi-num-cs-v1-5-4ccb13dcc7b0@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-04 18:51:36 +01:00
Krzysztof Kozlowski
ad0dcba3ab
spi: dt-bindings: spi-cadence: Drop duplicated type/ref
spi-controller.yaml schema already defines this $ref for this property,
so binding does not have to.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260804-spi-num-cs-v1-4-4ccb13dcc7b0@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-04 18:51:35 +01:00