releases/4.19.53/platform-x86-pmc_atom-add-lex-3i380d-industrial-pc-t.patch

   1 From b96e67bd55410412b12999b87d7ef8b666b109af Mon Sep 17 00:00:00 2001
   2 From: Hans de Goede <hdegoede@redhat.com>
   3 Date: Mon, 29 Apr 2019 17:01:35 +0200
   4 Subject: platform/x86: pmc_atom: Add Lex 3I380D industrial PC to
   5  critclk_systems DMI table
   6
   7 [ Upstream commit 3d0818f5eba80fbe4c0addbfe6ddb2d19dc82cd4 ]
   8
   9 The Lex 3I380D industrial PC has 4 ethernet controllers on board
  10 which need pmc_plt_clk0 - 3 to function, add it to the critclk_systems
  11 DMI table, so that drivers/clk/x86/clk-pmc-atom.c will mark the clocks
  12 as CLK_CRITICAL and they will not get turned off.
  13
  14 Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
  15 Reported-and-tested-by: Semyon Verchenko <semverchenko@factor-ts.ru>
  16 Signed-off-by: Hans de Goede <hdegoede@redhat.com>
  17 Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
  18 Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
  19 Signed-off-by: Sasha Levin <sashal@kernel.org>
  20 ---
  21  drivers/platform/x86/pmc_atom.c | 9 +++++++++
  22  1 file changed, 9 insertions(+)
  23
  24 diff --git a/drivers/platform/x86/pmc_atom.c b/drivers/platform/x86/pmc_atom.c
  25 index c7039f52ad51..a311f48ce7c9 100644
  26 --- a/drivers/platform/x86/pmc_atom.c
  27 +++ b/drivers/platform/x86/pmc_atom.c
  28 @@ -398,12 +398,21 @@ static int pmc_dbgfs_register(struct pmc_dev *pmc)
  29   */
  30  static const struct dmi_system_id critclk_systems[] = {
  31         {
  32 +               /* pmc_plt_clk0 is used for an external HSIC USB HUB */
  33                 .ident = "MPL CEC1x",
  34                 .matches = {
  35                         DMI_MATCH(DMI_SYS_VENDOR, "MPL AG"),
  36                         DMI_MATCH(DMI_PRODUCT_NAME, "CEC10 Family"),
  37                 },
  38         },
  39 +       {
  40 +               /* pmc_plt_clk0 - 3 are used for the 4 ethernet controllers */
  41 +               .ident = "Lex 3I380D",
  42 +               .matches = {
  43 +                       DMI_MATCH(DMI_SYS_VENDOR, "Lex BayTrail"),
  44 +                       DMI_MATCH(DMI_PRODUCT_NAME, "3I380D"),
  45 +               },
  46 +       },
  47         { /*sentinel*/ }
  48  };
  49
  50 --
  51 2.20.1
  52