[PATCH 2/2] platform/x86: acer-wmi: enable hwmon on Aspire A315-58G

[Mohsen Tahmasebi]

The Acer Aspire A315-58G supports the Acer hwmon interface and reports
CPU, GPU and external temperatures.
Note that the GPU temperature reports 0 when the Nvidia MX350 GPU is in
D3cold, but reports a valid value when the GPU is in D3hot/D0.

This commit enables hwmon for this model.

Signed-off-by: Mohsen Tahmasebi <moh53n@xxxxxxxxxx>
---

Tested on Acer Aspire A315-58G (BIOS V1.35).

With this series applied and MX350 GPU in D3hot:

  $ cat /sys/class/dmi/id/sys_vendor
  Acer

  $ cat /sys/class/dmi/id/product_name
  Aspire A315-58G

  $ sensors
  ...
  acer-isa-0ace
  Adapter: ISA adapter
  temp1:        +57.0°C
  temp2:        +50.0°C
  temp3:        +56.0°C
  ...

Sensor mapping:
  temp1: CPU temperature
  temp2: GPU temperature
  temp3: external temperature


 drivers/platform/x86/acer-wmi.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 83448561189..d251752d51e 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -455,6 +455,10 @@ static struct quirk_entry quirk_acer_aspire_1520 = {
 	.brightness = -1,
 };
 
+static struct quirk_entry quirk_acer_aspire_a315_58g = {
+	.hwmon = 1,
+};
+
 static struct quirk_entry quirk_acer_travelmate_2490 = {
 	.mailled = 1,
 };
@@ -639,6 +643,15 @@ static const struct dmi_system_id acer_quirks[] __initconst = {
 		},
 		.driver_data = &quirk_acer_travelmate_2490,
 	},
+	{
+		.callback = dmi_matched,
+		.ident = "Acer Aspire A315-58G",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A315-58G"),
+		},
+		.driver_data = &quirk_acer_aspire_a315_58g,
+	},
 	{
 		.callback = dmi_matched,
 		.ident = "Acer TravelMate 2490",
-- 
2.54.0