Here is v5 of my patch-set adding support for camera sensor connected to a
TPS68470 PMIC on x86/ACPI devices.
Changes in v5:
- Update regulator_init_data in patch 10/11 to include the VCM regulator
- Address various small review remarks from Andy
- Make a couple of functions / vars static in the clk + regulator drivers
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Changes in v4:
[PATCH 01/11] ACPI: delay enumeration of devices with a _DEP
pointing to an INT3472 device:
- Move the acpi_dev_ready_for_enumeration() check to acpi_bus_attach()
(replacing the acpi_device_is_present() check there)
[PATCH 04/11] regulator: Introduce tps68470-regulator driver:
- Make the top comment block use c++ style comments
- Drop the bogus builtin regulator_init_data
- Make the driver enable the PMIC clk when enabling the Core buck
regulator, this switching regulator needs the PLL to be on
- Kconfig: add || COMPILE_TEST, fix help text
[PATCH 05/11] clk: Introduce clk-tps68470 driver
- Kconfig: select REGMAP_I2C, add || COMPILE_TEST, fix help text
- tps68470_clk_prepare(): Wait for the PLL to lock before returning
- tps68470_clk_unprepare(): Remove unnecesary clearing of divider regs
- tps68470_clk_probe(): Use devm_clk_hw_register()
- Misc. small cleanups
I'm quite happy with how this works now, so from my pov this is the final
version of the device-instantiation deferral code / approach.
###
The clk and regulator frameworks expect clk/regulator consumer-devices
to have info about the consumed clks/regulators described in the device's
fw_node, but on ACPI this info is missing.
This series worksaround this by providing platform_data with the info to
the TPS68470 clk/regulator MFD cells.
Patches 1 - 2 deal with a probe-ordering problem this introduces,
since the lookups are only registered when the provider-driver binds,
trying to get these clks/regulators before then results in a -ENOENT
error for clks and a dummy regulator for regulators. See the patches
for more details.
Patch 3 adds a header file which adds tps68470_clk_platform_data and
tps68470_regulator_platform_data structs. The futher patches depend on
this new header file.
Patch 4 + 5 add the TPS68470 clk and regulator drivers
Patches 6 - 11 Modify the INT3472 driver which instantiates the MFD cells to
provide the necessary platform-data.
Assuming this series is acceptable to everyone, we need to talk about how
to merge this.
Patch 2 has already been acked by Wolfram for merging by Rafael, so patch
1 + 2 can be merged into linux-pm, independent of the rest of the series
(there are some runtime deps on other changes for everything to work,
but the camera-sensors impacted by this are not fully supported yet in
the mainline kernel anyways).
For "[PATCH 03/13] platform_data: Add linux/platform_data/tps68470.h file",
which all further patches depend on I plan to provide an immutable branch
myself (once it has been reviewed), which the clk / regulator maintainers
can then merge before merging the clk / regulator driver which depends on
this.
And I will merge that IM-branch + patches 6-11 into the pdx86 tree myself.
Regards,
Hans
Daniel Scally (1):
platform/x86: int3472: Enable I2c daisy chain
Hans de Goede (10):
ACPI: delay enumeration of devices with a _DEP pointing to an INT3472
device
i2c: acpi: Use acpi_dev_ready_for_enumeration() helper
platform_data: Add linux/platform_data/tps68470.h file
regulator: Introduce tps68470-regulator driver
clk: Introduce clk-tps68470 driver
platform/x86: int3472: Split into 2 drivers
platform/x86: int3472: Add get_sensor_adev_and_name() helper
platform/x86: int3472: Pass tps68470_clk_platform_data to the
tps68470-regulator MFD-cell
platform/x86: int3472: Pass tps68470_regulator_platform_data to the
tps68470-regulator MFD-cell
platform/x86: int3472: Deal with probe ordering issues
drivers/acpi/scan.c | 37 ++-
drivers/clk/Kconfig | 8 +
drivers/clk/Makefile | 1 +
drivers/clk/clk-tps68470.c | 257 ++++++++++++++++++
drivers/i2c/i2c-core-acpi.c | 5 +-
drivers/platform/x86/intel/int3472/Makefile | 9 +-
...lk_and_regulator.c => clk_and_regulator.c} | 2 +-
drivers/platform/x86/intel/int3472/common.c | 82 ++++++
.../{intel_skl_int3472_common.h => common.h} | 6 +-
...ntel_skl_int3472_discrete.c => discrete.c} | 51 ++--
.../intel/int3472/intel_skl_int3472_common.c | 106 --------
...ntel_skl_int3472_tps68470.c => tps68470.c} | 99 ++++++-
drivers/platform/x86/intel/int3472/tps68470.h | 25 ++
.../x86/intel/int3472/tps68470_board_data.c | 134 +++++++++
drivers/regulator/Kconfig | 9 +
drivers/regulator/Makefile | 1 +
drivers/regulator/tps68470-regulator.c | 212 +++++++++++++++
include/acpi/acpi_bus.h | 5 +-
include/linux/mfd/tps68470.h | 11 +
include/linux/platform_data/tps68470.h | 35 +++
20 files changed, 944 insertions(+), 151 deletions(-)
create mode 100644 drivers/clk/clk-tps68470.c
rename drivers/platform/x86/intel/int3472/{intel_skl_int3472_clk_and_regulator.c => clk_and_regulator.c} (99%)
create mode 100644 drivers/platform/x86/intel/int3472/common.c
rename drivers/platform/x86/intel/int3472/{intel_skl_int3472_common.h => common.h} (94%)
rename drivers/platform/x86/intel/int3472/{intel_skl_int3472_discrete.c => discrete.c} (91%)
delete mode 100644 drivers/platform/x86/intel/int3472/intel_skl_int3472_common.c
rename drivers/platform/x86/intel/int3472/{intel_skl_int3472_tps68470.c => tps68470.c} (54%)
create mode 100644 drivers/platform/x86/intel/int3472/tps68470.h
create mode 100644 drivers/platform/x86/intel/int3472/tps68470_board_data.c
create mode 100644 drivers/regulator/tps68470-regulator.c
create mode 100644 include/linux/platform_data/tps68470.h
--
2.31.1
