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Diffstat (limited to 'src/drivers/i2c')
-rw-r--r--src/drivers/i2c/designware/dw_i2c.c13
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,