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[C,SRU,3/3] ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Gnawty

Message ID 20190115031334.11447-4-po-hsu.lin@canonical.com
State New
Headers show
Series [C,SRU,1/3] ASoC: intel: cht_bsw_max98090_ti: Add quirk for boards using pmc_plt_clk_0 | expand

Commit Message

Po-Hsu Lin Jan. 15, 2019, 3:13 a.m. UTC 
From: Hans de Goede <hdegoede@redhat.com>

BugLink: https://bugs.launchpad.net/bugs/1811566

The Gnawty model Chromebook uses pmc_plt_clk_0 instead of pmc_plt_clk_3
for the mclk, just like the Clapper and Swanky models.

This commit adds a DMI based quirk for this.

This fixing audio no longer working on these devices after
commit 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
that commit fixes us unnecessary keeping unused clocks on, but in case of
the Gnawty that was breaking audio support since we were not using the
right clock in the cht_bsw_max98090_ti machine driver.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201787
Cc: stable@vger.kernel.org
Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
Reported-and-tested-by: Jaime Pérez <19.jaime.91@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit 94ea56cff506c769a509c5dd87904c7fe3806a81)
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
---
 sound/soc/intel/boards/cht_bsw_max98090_ti.c | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/sound/soc/intel/boards/cht_bsw_max98090_ti.c b/sound/soc/intel/boards/cht_bsw_max98090_ti.c
index ad0c983..08a5152 100644
--- a/sound/soc/intel/boards/cht_bsw_max98090_ti.c
+++ b/sound/soc/intel/boards/cht_bsw_max98090_ti.c
@@ -397,6 +397,13 @@  static const struct dmi_system_id cht_max98090_quirk_table[] = {
 		.driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 	},
 	{
+		/* Gnawty model Chromebook (Acer Chromebook CB3-111) */
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "Gnawty"),
+		},
+		.driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
+	},
+	{
 		/* Swanky model Chromebook (Toshiba Chromebook 2) */
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "Swanky"),