diff options
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/i2c/designware/dw_i2c.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/src/drivers/i2c/designware/dw_i2c.c b/src/drivers/i2c/designware/dw_i2c.c index 93b662a63d..760a735380 100644 --- a/src/drivers/i2c/designware/dw_i2c.c +++ b/src/drivers/i2c/designware/dw_i2c.c @@ -817,14 +817,9 @@ void dw_i2c_acpi_fill_ssdt(struct device *dev) const struct dw_i2c_bus_config *bcfg; uintptr_t dw_i2c_addr; struct dw_i2c_speed_config sgen; - enum i2c_speed speeds[DW_I2C_SPEED_CONFIG_COUNT] = { - I2C_SPEED_STANDARD, - I2C_SPEED_FAST, - I2C_SPEED_FAST_PLUS, - I2C_SPEED_HIGH, - }; - int i, bus; + int bus; const char *path; + unsigned int speed; if (!dev->enabled) return; @@ -847,20 +842,15 @@ void dw_i2c_acpi_fill_ssdt(struct device *dev) if (!path) return; - acpigen_write_scope(path); + /* Ensure a default speed is available */ + speed = (bcfg->speed == 0) ? I2C_SPEED_FAST : bcfg->speed; /* Report timing values for the OS driver */ - for (i = 0; i < DW_I2C_SPEED_CONFIG_COUNT; i++) { - /* Generate speed config. */ - if (dw_i2c_gen_speed_config(dw_i2c_addr, speeds[i], bcfg, - &sgen) < 0) - continue; - - /* Generate ACPI based on selected speed config */ + 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(); } - - acpigen_pop_len(); } static int dw_i2c_dev_transfer(struct device *dev, |