On 12/3/18 12:45 PM, Hans de Goede wrote:
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@xxxxxxxxxxxxxxx
Fixes: 648e921888ad ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
Reported-and-tested-by: Jaime Pérez <19.jaime.91@xxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/intel/boards/cht_bsw_max98090_ti.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/sound/soc/intel/boards/cht_bsw_max98090_ti.c b/sound/soc/intel/boards/cht_bsw_max98090_ti.c
index ad0c98383853..08a5152e635a 100644
--- a/sound/soc/intel/boards/cht_bsw_max98090_ti.c
+++ b/sound/soc/intel/boards/cht_bsw_max98090_ti.c
@@ -396,6 +396,13 @@ 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 = {
