platform/x86: int3472: Export int3472_discrete_parse_crs()

At the moment the atomisp has duplicate code for parsing Intel camera
sensor GPIOS and calling the special 79234640-9e10-4fea-a5c1-b5aa8b19756f
_DSM to get the GPIO type and map it to the sensor.

Export int3472_discrete_parse_crs() so that the atomisp driver can reuse
the INT3472 code for this.

Signed-off-by: Hans de Goede <[email protected]>
Reviewed-by: Sakari Ailus <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Ilpo Järvinen <[email protected]>
Signed-off-by: Ilpo Järvinen <[email protected]>

Author: jwrdegoede

drivers/platform/x86/intel/int3472/discrete.c

@@ -363,7 +363,7 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares,
 	return 1;
 }
 
-static int skl_int3472_parse_crs(struct int3472_discrete_device *int3472)
+int int3472_discrete_parse_crs(struct int3472_discrete_device *int3472)
 {
 	LIST_HEAD(resource_list);
 	int ret;
@@ -388,17 +388,22 @@ static int skl_int3472_parse_crs(struct int3472_discrete_device *int3472)
 
 	return 0;
 }
+EXPORT_SYMBOL_NS_GPL(int3472_discrete_parse_crs, "INTEL_INT3472_DISCRETE");
 
-static void skl_int3472_discrete_remove(struct platform_device *pdev)
+void int3472_discrete_cleanup(struct int3472_discrete_device *int3472)
 {
-	struct int3472_discrete_device *int3472 = platform_get_drvdata(pdev);
-
 	gpiod_remove_lookup_table(&int3472->gpios);
 
 	skl_int3472_unregister_clock(int3472);
 	skl_int3472_unregister_pled(int3472);
 	skl_int3472_unregister_regulator(int3472);
 }
+EXPORT_SYMBOL_NS_GPL(int3472_discrete_cleanup, "INTEL_INT3472_DISCRETE");
+
+static void skl_int3472_discrete_remove(struct platform_device *pdev)
+{
+	int3472_discrete_cleanup(platform_get_drvdata(pdev));
+}
 
 static int skl_int3472_discrete_probe(struct platform_device *pdev)
 {
@@ -453,7 +458,7 @@ static int skl_int3472_discrete_probe(struct platform_device *pdev)
 	 */
 	INIT_LIST_HEAD(&int3472->gpios.list);
 
-	ret = skl_int3472_parse_crs(int3472);
+	ret = int3472_discrete_parse_crs(int3472);
 	if (ret) {
 		skl_int3472_discrete_remove(pdev);
 		return ret;

include/linux/platform_data/x86/int3472.h

@@ -147,6 +147,9 @@ int skl_int3472_get_sensor_adev_and_name(struct device *dev,
 					 struct acpi_device **sensor_adev_ret,
 					 const char **name_ret);
 
+int int3472_discrete_parse_crs(struct int3472_discrete_device *int3472);
+void int3472_discrete_cleanup(struct int3472_discrete_device *int3472);
+
 int skl_int3472_register_gpio_clock(struct int3472_discrete_device *int3472,
 				    struct gpio_desc *gpio);
 int skl_int3472_register_dsm_clock(struct int3472_discrete_device *int3472);