On Mon, Apr 29, 2019 at 6:01 PM Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
>
> The Lex 3I380D industrial PC has 4 ethernet controllers on board
> which need pmc_plt_clk0 - 3 to function, add it to the critclk_systems
> DMI table, so that drivers/clk/x86/clk-pmc-atom.c will mark the clocks
> as CLK_CRITICAL and they will not get turned off.
>
Acked-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
supposedly to go via CLK tree.
P.S. If you want it through PDx86, I need immutable branch / tag from CLK.
> Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
> Reported-and-tested-by: Semyon Verchenko <semverchenko@xxxxxxxxxxxx>
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
> ---
> drivers/platform/x86/pmc_atom.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/drivers/platform/x86/pmc_atom.c b/drivers/platform/x86/pmc_atom.c
> index 3a635ea09b8a..2910845b7cdd 100644
> --- a/drivers/platform/x86/pmc_atom.c
> +++ b/drivers/platform/x86/pmc_atom.c
> @@ -407,12 +407,21 @@ static int pmc_dbgfs_register(struct pmc_dev *pmc)
> */
> static const struct dmi_system_id critclk_systems[] = {
> {
> + /* pmc_plt_clk0 is used for an external HSIC USB HUB */
> .ident = "MPL CEC1x",
> .matches = {
> DMI_MATCH(DMI_SYS_VENDOR, "MPL AG"),
> DMI_MATCH(DMI_PRODUCT_NAME, "CEC10 Family"),
> },
> },
> + {
> + /* pmc_plt_clk0 - 3 are used for the 4 ethernet controllers */
> + .ident = "Lex 3I380D",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "Lex BayTrail"),
> + DMI_MATCH(DMI_PRODUCT_NAME, "3I380D"),
> + },
> + },
> { /*sentinel*/ }
> };
>
> --
> 2.21.0
>
--
With Best Regards,
Andy Shevchenko
