linux-kernel - [PATCH] platform/x86: pmc_atom: Add Lex 2I385SW to critclk

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Message-Id: <20200203201105.11659-1-georgmueller@gmx.net>
Date:   Mon,  3 Feb 2020 21:11:06 +0100
From:   Georg Müller <georgmueller@....net>
To:     linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        Hans de Goede <hdegoede@...hat.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>
Cc:     Georg Müller <georgmueller@....net>
Subject: [PATCH] platform/x86: pmc_atom: Add Lex 2I385SW to critclk_systems DMI table

The Lex 2I385SW board has two Intel I211 ethernet controllers. Without
this patch, only the first port is usable. The second port fails to
start with the following message:

    igb: probe of 0000:02:00.0 failed with error -2

Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
Tested-by: Georg Müller <georgmueller@....net>
Signed-off-by: Georg Müller <georgmueller@....net>
---
 drivers/platform/x86/pmc_atom.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/platform/x86/pmc_atom.c b/drivers/platform/x86/pmc_atom.c
index 3e3c66dfec2e..ca684ed760d1 100644
--- a/drivers/platform/x86/pmc_atom.c
+++ b/drivers/platform/x86/pmc_atom.c
@@ -383,6 +383,14 @@ static const struct dmi_system_id critclk_systems[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "3I380D"),
 		},
 	},
+	{
+		/* pmc_plt_clk* - are used for ethernet controllers */
+		.ident = "Lex 2I385SW",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Lex BayTrail"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "2I385SW"),
+		},
+	},
 	{
 		/* pmc_plt_clk* - are used for ethernet controllers */
 		.ident = "Beckhoff CB3163",
--
2.24.1