diff options
Diffstat (limited to 'src/drivers/i2c/designware')
| -rw-r--r-- | src/drivers/i2c/designware/dw_i2c.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/drivers/i2c/designware/dw_i2c.c b/src/drivers/i2c/designware/dw_i2c.c index 2e2d20d78c..a6498fb1c3 100644 --- a/src/drivers/i2c/designware/dw_i2c.c +++ b/src/drivers/i2c/designware/dw_i2c.c @@ -803,7 +803,7 @@ void dw_i2c_acpi_fill_ssdt(const struct device *dev) struct dw_i2c_speed_config sgen; int bus; const char *path; - unsigned int speed; + unsigned int speed, i; bus = dw_i2c_soc_dev_to_bus(dev); @@ -826,12 +826,17 @@ void dw_i2c_acpi_fill_ssdt(const struct device *dev) /* Ensure a default speed is available */ speed = (bcfg->speed == 0) ? I2C_SPEED_FAST : bcfg->speed; - /* Report timing values for the OS driver */ + /* Report currently used timing values for the OS driver */ + acpigen_write_scope(path); if (dw_i2c_gen_speed_config(dw_i2c_addr, speed, bcfg, &sgen) >= 0) { - acpigen_write_scope(path); dw_i2c_acpi_write_speed_config(&sgen); - acpigen_pop_len(); } + /* Now check if there are more speed settings available and report them as well. */ + for (i = 0; i < DW_I2C_SPEED_CONFIG_COUNT; i++) { + if (bcfg->speed_config[i].speed && speed != bcfg->speed_config[i].speed) + dw_i2c_acpi_write_speed_config(&bcfg->speed_config[i]); + } + acpigen_write_scope_end(); } static int dw_i2c_dev_transfer(struct device *dev, |