[coreboot-gerrit] Change in ...coreboot[master]: drivers/generic/adau7002: Add wakeup-delay-ms property

[Martin Roth (Code Review)]

Martin Roth has submitted this change and it was merged. ( https://review.coreboot.org/c/coreboot/+/30724 )

Change subject: drivers/generic/adau7002: Add wakeup-delay-ms property
......................................................................

drivers/generic/adau7002: Add wakeup-delay-ms property

Passes out wakeup-delay to driver. This delay is applied at
the start of capture to make sure dmics are ready before we
start recording. This avoids pop noise at begining of capture.

BUG=b:119926436
TEST=
With kernel patch
https://lore.kernel.org/patchwork/patch/1029806/
No pop sound heard at start of capture

Change-Id: I32b18bf80fad5899ab4093a127dfd52d589bc365
Signed-off-by: Akshu Agrawal 
Reviewed-on: https://review.coreboot.org/c/30724
Tested-by: build bot (Jenkins) 
Reviewed-by: Martin Roth 
---
M src/drivers/generic/adau7002/adau7002.c
M src/drivers/generic/adau7002/chip.h
2 files changed, 11 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Martin Roth: Looks good to me, approved

diff --git a/src/drivers/generic/adau7002/adau7002.c b/src/drivers/generic/adau7002/adau7002.c
index 2ea1086..38d3d07 100644
--- a/src/drivers/generic/adau7002/adau7002.c
+++ b/src/drivers/generic/adau7002/adau7002.c
@@ -29,6 +29,9 @@

static void adau7002_fill_ssdt(struct device *dev)
 {
+	struct drivers_generic_adau7002_config *config;
+	struct acpi_dp *dp;
+
    if (!dev || !dev->enabled)
    	return;

@@ -45,6 +48,12 @@
    acpigen_write_name_string("_DDN", dev->chip_ops->name);
    acpigen_write_STA(acpi_device_status(dev));

+	/* _DSD for devicetree properties */
+	config = dev->chip_info;
+	dp = acpi_dp_new_table("_DSD");
+	acpi_dp_add_integer(dp, "wakeup-delay-ms", config->wakeup_delay);
+	acpi_dp_write(dp);
+
    acpigen_pop_len(); /* Device */
    acpigen_pop_len(); /* Scope */

diff --git a/src/drivers/generic/adau7002/chip.h b/src/drivers/generic/adau7002/chip.h
index 95b4d1e..f8cab44 100644
--- a/src/drivers/generic/adau7002/chip.h
+++ b/src/drivers/generic/adau7002/chip.h
@@ -17,6 +17,8 @@
 #define __I2C_GENERIC_ADAU7002_CHIP_H__

struct drivers_generic_adau7002_config {
+	/* Delay */
+	unsigned int wakeup_delay;
 };

#endif /* __I2C_GENERIC_ADAU7002_CHIP_H__ */