On Friday, August 01, 2014 09:06:35 AM Jie Yang wrote:
> INT3438 is the ADSP device on Wildcat Point platform
> with 2 DW DMA engines built In. The DMA engines are
> used for DSP FW loading and audio data transferring.
> These DMA engine probing need the clock, without it,
> probing may failed and can't go forward.
>
> Add lpss device "INT3438" for Wildcat Point PCH, to
> provide clock for its ADSP DMA engine probing.
>
> Signed-off-by: Jie Yang <yang....@intel.com>
Looks good, queued up for 3.17, thanks!
> ---
> drivers/acpi/acpi_lpss.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
> index 9cb65b0..ce06149 100644
> --- a/drivers/acpi/acpi_lpss.c
> +++ b/drivers/acpi/acpi_lpss.c
> @@ -113,6 +113,14 @@ static void lpss_i2c_setup(struct lpss_private_data
> *pdata)
> writel(val, pdata->mmio_base + offset);
> }
>
> +static struct lpss_device_desc wpt_dev_desc = {
> + .clk_required = true,
> + .prv_offset = 0x800,
> + .ltr_required = true,
> + .clk_divider = true,
> + .clk_gate = true,
> +};
> +
> static struct lpss_device_desc lpt_dev_desc = {
> .clk_required = true,
> .prv_offset = 0x800,
> @@ -226,6 +234,8 @@ static const struct acpi_device_id acpi_lpss_device_ids[]
> = {
> { "INT3436", LPSS_ADDR(lpt_sdio_dev_desc) },
> { "INT3437", },
>
> + { "INT3438", LPSS_ADDR(wpt_dev_desc) },
> +
> { }
> };
>
>
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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