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path: root/src/drivers/i2c/cs42l42
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2021-05-12drivers/i2c/cs42l42: Make HS_BIAS_SENSE_EN optionalVitaly Rodionov
HSBIAS_SENSE_EN configures HSBIAS output current sense through the external 2.21-k resistor. HSBIAS_SENSE is hardware feature to reduce the potential pop noise during the headset plug out slowly. But on some platforms ESD voltage will affect it causing test to fail, especially with CTIA headset type. For different hardware setups, a designer might want to tweak default behavior. Signed-off-by: Vitaly Rodionov <vitaly.rodionov@cirrus.corp-partner.google.com> Change-Id: I87c6f01af1bdb5b1cb8e399191519598d7fbe9ea Reviewed-on: https://review.coreboot.org/c/coreboot/+/52981 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-04-23drivers/i2c/cs42l42: Add driver for generating device in SSDTVitaly Rodionov
This driver uses the ACPI Device Property interface to generate the required parameters into the _DSD table format expected by the kernel This was tested on the octopus/variants/fleex ainboard to ensure that the SSDT contained the equivalent parameters that are provided by the current DSDT object Signed-off-by: Vitaly Rodionov <vitaly.rodionov@cirrus.corp-partner.google.com> Change-Id: I7c3145b20a1ba743d91eb64b93cb001db3854c5d Reviewed-on: https://review.coreboot.org/c/coreboot/+/52395 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com> Reviewed-by: Furquan Shaikh <furquan@google.com>