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Subject[PATCH 4.14 33/53] platform/x86: pmc_atom: Add Lex 3I380D industrial PC to critclk_systems DMI table
Date
[ Upstream commit 3d0818f5eba80fbe4c0addbfe6ddb2d19dc82cd4 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 50f2a125cd2c..e3e1f83a2dd7 100644
--- a/drivers/platform/x86/pmc_atom.c
+++ b/drivers/platform/x86/pmc_atom.c
@@ -428,12 +428,21 @@ 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*/ }
};

--
2.20.1


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