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SX9324 driver is updated per Linux's documentation found at
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
Supporting logic for the deprecated SX932x driver is hence guarded by
DRIVERS_I2C_SX9324_SUPPORT_LEGACY_LINUX_DRIVER
This patch by itself does not introduce functional changes to any board.
The legacy SX932x Linux driver never reached upstream Linux and is only
available in ChromeOS kernel fork of 4.4 and 5.4. Linux later accepted
a different implementation named SX9324 and has been available since
5.4. Ideally all variants should adopt the new driver; however, during
the transition phase, coreboot must support both drivers. It is better
to have a single firmware build that can work with both Linux kernel
drivers by specifying both sets of properties. Legacy driver support
should be deleted once all variants finish migration.
BUG=b:242662878
TEST=Dump ACPI SSDT then verify _DSD entries related to the legacy
SX932x driver are identical w/ and w/o this patch
(Tested on Craask and Nivviks)
Change-Id: I42cd6841c3a270c242ed2e739db245e858eadb3b
Signed-off-by: Victor Ding <victording@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69192
Reviewed-by: Reka Norman <rekanorman@chromium.org>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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Add IrqCfg1 register for proximity IRQ function and polarity setting.
BUG=b:175932166
BRANCH=dedede
TEST=Build passed.
Change-Id: I3cee84a5658fecf55d2d8b8621879588ffe0158d
Signed-off-by: Stanley Wu <stanley1.wu@lcfc.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49220
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Export all registers that driver is looking for. And put in alphabetic order.
The missing registers for kernel v5.4 sx93xx are:
reg_irq_msk
reg_irq_cfg0
reg_irq_cfg2
reg_afe_ph0/1/2/3
BUG=b:172397658
BRANCH=zork
TEST=Build passed
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: Ic9d7a959b1769b6846bba302e3aeab9a3a1cedac
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47866
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This adds a new driver for the SX9324 proximity detector device.
Follow SX9324 datasheet Rev3.
BUG=b:172397658
BRANCH=zork
TEST=Test sx9324 is working as expected.
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: Ifd582482728a2f535ed85f6696b2f5a4529ba421
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47640
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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