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path: root/drivers/i2c/busses/i2c-designware-platdrv.c
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Diffstat (limited to 'drivers/i2c/busses/i2c-designware-platdrv.c')
-rw-r--r--drivers/i2c/busses/i2c-designware-platdrv.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 0de4e302fc6a..a71bc58fc03c 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -12,6 +12,7 @@
#include <linux/clk-provider.h>
#include <linux/clk.h>
#include <linux/delay.h>
+#include <linux/dmi.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/i2c.h>
@@ -191,6 +192,17 @@ static int dw_i2c_plat_request_regs(struct dw_i2c_dev *dev)
return ret;
}
+static const struct dmi_system_id dw_i2c_hwmon_class_dmi[] = {
+ {
+ .ident = "Qtechnology QT5222",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Qtechnology"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "QT5222"),
+ },
+ },
+ { } /* terminate list */
+};
+
static int dw_i2c_plat_probe(struct platform_device *pdev)
{
struct dw_i2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
@@ -228,7 +240,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
else
i2c_parse_fw_timings(&pdev->dev, t, false);
- i2c_dw_acpi_adjust_bus_speed(&pdev->dev);
+ i2c_dw_adjust_bus_speed(dev);
if (pdev->dev.of_node)
dw_i2c_of_configure(pdev);
@@ -267,7 +279,8 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
adap = &dev->adapter;
adap->owner = THIS_MODULE;
- adap->class = I2C_CLASS_DEPRECATED;
+ adap->class = dmi_check_system(dw_i2c_hwmon_class_dmi) ?
+ 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;