@@ -188,6 +188,36 @@ static int skl_int3472_map_gpio_to_clk(struct int3472_discrete_device *int3472,
return 0;
}
+static void int3472_get_func_and_polarity(u8 type, const char **func, u32 *polarity)
+{
+ switch (type) {
+ case INT3472_GPIO_TYPE_RESET:
+ *func = "reset";
+ *polarity = GPIO_ACTIVE_LOW;
+ break;
+ case INT3472_GPIO_TYPE_POWERDOWN:
+ *func = "powerdown";
+ *polarity = GPIO_ACTIVE_LOW;
+ break;
+ case INT3472_GPIO_TYPE_CLK_ENABLE:
+ *func = "clk-enable";
+ *polarity = GPIO_ACTIVE_HIGH;
+ break;
+ case INT3472_GPIO_TYPE_PRIVACY_LED:
+ *func = "privacy-led";
+ *polarity = GPIO_ACTIVE_HIGH;
+ break;
+ case INT3472_GPIO_TYPE_POWER_ENABLE:
+ *func = "power-enable";
+ *polarity = GPIO_ACTIVE_HIGH;
+ break;
+ default:
+ *func = "unknown";
+ *polarity = GPIO_ACTIVE_HIGH;
+ break;
+ }
+}
+
/**
* skl_int3472_handle_gpio_resources: Map PMIC resources to consuming sensor
* @ares: A pointer to a &struct acpi_resource
@@ -227,6 +257,8 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares,
struct acpi_resource_gpio *agpio;
union acpi_object *obj;
const char *err_msg;
+ const char *func;
+ u32 polarity;
int ret;
u8 type;
@@ -250,19 +282,14 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares,
type = obj->integer.value & 0xff;
+ int3472_get_func_and_polarity(type, &func, &polarity);
+
switch (type) {
case INT3472_GPIO_TYPE_RESET:
- ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "reset",
- GPIO_ACTIVE_LOW);
- if (ret)
- err_msg = "Failed to map reset pin to sensor\n";
-
- break;
case INT3472_GPIO_TYPE_POWERDOWN:
- ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "powerdown",
- GPIO_ACTIVE_LOW);
+ ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, func, polarity);
if (ret)
- err_msg = "Failed to map powerdown pin to sensor\n";
+ err_msg = "Failed to map GPIO pin to sensor\n";
break;
case INT3472_GPIO_TYPE_CLK_ENABLE:
Add a helper function to map the type returned by the _DSM method to a function name + the default polarity for that function. And fold the INT3472_GPIO_TYPE_RESET and INT3472_GPIO_TYPE_POWERDOWN cases into a single generic case. This is a preparation patch for further GPIO mapping changes. Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- Changes in v3: - Add break to default case Changes in v2: - Make the helper function doing the type -> function mapping, also return a default polarity for the function. --- drivers/platform/x86/intel/int3472/discrete.c | 45 +++++++++++++++---- 1 file changed, 36 insertions(+), 9 deletions(-)