Current AMD's zen-based APUs use this core for some of its i2c-buses.
With this patch we re-enable autodetection of hwmon-alike devices, so
lm-sensors will be able to work automatically.
It does not affect the boot-time of embedded devices, as the class is
set based on the dmi information.
Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxx>
---
drivers/i2c/busses/i2c-designware-platdrv.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index c2efaaaac252..f0a02fc3c135 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -191,6 +191,13 @@ static int dw_i2c_plat_request_regs(struct dw_i2c_dev *dev)
return ret;
}
+static bool dw_i2c_hwmon_bus(void)
+{
+ if (strstr(dmi_get_system_info(DMI_PRODUCT_NAME), "QT5222"))
+ return true;
+ return false;
+}
+
static int dw_i2c_plat_probe(struct platform_device *pdev)
{
struct dw_i2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
@@ -267,7 +274,8 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
adap = &dev->adapter;
adap->owner = THIS_MODULE;
- adap->class = I2C_CLASS_DEPRECATED;
+ adap->class = dw_i2c_hwmon_bus() ? I2C_CLASS_HWMON
+ : I2C_CLASS_DEPRECATED;
ACPI_COMPANION_SET(&adap->dev, ACPI_COMPANION(&pdev->dev));
adap->dev.of_node = pdev->dev.of_node;
adap->nr = -1;
--
2.27.0
