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driver/i2c/max98390: add dsm_param_name 

Maxim driver look for "maxim,dsm_param_name" to load dsm parameter file.
dsm param file name consist of {dsm_param_file_name} filled in devicetree,
{MAINBOARD_VENDOR} and {MAINBOARD_PART_NUMBER}.
=> {dsm_param_file_name}_{MAINBOARD_VENDOR}_{MAINBOARD_PART_NUMBER}.bin

BUG=b:197076844
TEST=build, and check ssdt

Change-Id: I006572d6a6ea55298374c688dfd9d877835da82d
Signed-off-by: Wisley Chen <wisley.chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57119
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Wisley Chen 2021-08-24 18:39:06 +06:00 committed by Tim Wawrzynczak
parent 8337e686a6
commit 889fa6093d
3 changed files with 30 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/drivers/i2c/max98390/chip.h
View File

@ -13,4 +13,5 @@ struct drivers_i2c_max98390_config {
const char *r0_calib_key;
/* The VPD key of temperature during speaker calibration. */
const char *temperature_calib_key;
const char *dsm_param_file_name;
};

23
src/drivers/i2c/max98390/max98390.c
View File

@ -25,8 +25,9 @@ static void max98390_fill_ssdt(const struct device *dev)
.speed = I2C_SPEED_FAST,
.resource = scope,
};
struct acpi_dp *dp;
struct acpi_dp *dp = NULL;
uint64_t r0_value, temp_value;
char dsm_name[80] = {};
if (!scope)
return;
@ -58,11 +59,29 @@ static void max98390_fill_ssdt(const struct device *dev)
dp = acpi_dp_new_table("_DSD");
MAX98390_DP_INT("r0_calib", r0_value);
MAX98390_DP_INT("temperature_calib", temp_value);
acpi_dp_write(dp);
printk(BIOS_INFO, "set dsm_calib properties\n");
}
}
if (CONFIG(CHROMEOS_DSM_PARAM_FILE_NAME)) {
if (config->dsm_param_file_name) {
if (!dp)
dp = acpi_dp_new_table("_DSD");
size_t chars = snprintf(dsm_name, sizeof(dsm_name), "%s_%s_%s.bin",
config->dsm_param_file_name, CONFIG_MAINBOARD_VENDOR,
CONFIG_MAINBOARD_PART_NUMBER);
if (chars >= sizeof(dsm_name))
printk(BIOS_ERR, "ERROR: String too long in %s\n", __func__);
acpi_dp_add_string(dp, "maxim,dsm_param_name", dsm_name);
}
}
if (dp)
acpi_dp_write(dp);
acpigen_pop_len(); /* Device */
acpigen_pop_len(); /* Scope */

8
src/vendorcode/google/chromeos/Kconfig
View File

@ -70,6 +70,14 @@ config CHROMEOS_DSM_CALIB
to ACPI DSD table in device driver. These parameters will be applied by kernel driver
through device property at boot.
config CHROMEOS_DSM_PARAM_FILE_NAME
bool
default n
help
On some boards, there are different dsm parameter files for Dynamic Speaker
Management (DSM). Enable this config to assign dsm parameters file name in ACPI
SSDT table. Kernel driver uses this to load the DSM parameter file.
config CHROMEOS_CSE_BOARD_RESET_OVERRIDE
bool
default n