When device uses the fixed clock and has no private space of LTR, we have to create main LPSS clock and register platform device. This is normally a case for LPSS DMA controller. Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> --- drivers/acpi/acpi_lpss.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index b1c9542..4015929 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -95,6 +95,10 @@ static int register_device_clock(struct acpi_device *adev, if (!lpss_clk_dev) lpt_register_clock_device(); + if (!dev_desc->prv_offset && dev_desc->clk_required) + /* There is no error when device uses fixed clock */ + return 0; + if (!dev_desc->clk_parent || !pdata->mmio_base || pdata->mmio_size < dev_desc->prv_offset + LPSS_CLK_SIZE) return -ENODATA; -- 1.8.2.rc0.22.gb3600c3 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
