| Message ID | 20170710184540.15119-2-hdegoede@redhat.com |
|---|---|
| State | Superseded |
| Headers | show |
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 4a3a7eda978b..dc47eb1f18a6 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -254,6 +254,9 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) } acpi_speed = i2c_acpi_find_bus_speed(&pdev->dev); + /* Some broken DSTDs use 1MiHz instead of 1MHz */ + if (acpi_speed == 1048576) + acpi_speed = 1000000; /* * Find bus speed from the "clock-frequency" device property, ACPI * or by using fast mode if neither is set.
At least the Acer Iconia Tab8 / aka W1-810 uses 1MiHz instead of 1MHz for one of its busses, fix this up to 1MHz instead of failing the probe of that bus. This fixes the accelerometer on the Acer Iconia Tab8 not working. Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- drivers/i2c/busses/i2c-designware-platdrv.c | 3 +++ 1 file changed, 3 insertions(+)