Commit 682c6c21 authored by Hans de Goede's avatar Hans de Goede Committed by Wolfram Sang

i2c: designware: Some broken DSTDs use 1MiHz instead of 1MHz

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: default avatarHans de Goede <hdegoede@redhat.com>
Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 22acc37b
...@@ -298,6 +298,9 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) ...@@ -298,6 +298,9 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
} }
acpi_speed = i2c_acpi_find_bus_speed(&pdev->dev); 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 * Find bus speed from the "clock-frequency" device property, ACPI
* or by using fast mode if neither is set. * or by using fast mode if neither is set.
......
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