platform/x86: pmc_atom: Add Lex 3I380D industrial PC to critclk_systems DMI table

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.

Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
Reported-and-tested-by: Semyon Verchenko <semverchenko@factor-ts.ru>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/platform/x86/pmc_atom.c b/drivers/platform/x86/pmc_atom.c
index c7039f52ad51..a311f48ce7c9 100644
--- a/drivers/platform/x86/pmc_atom.c
+++ b/drivers/platform/x86/pmc_atom.c
@@ -398,12 +398,21 @@ 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*/ }
 };