ACPI: button: Clean up printing messages

Replace the ACPI_DEBUG_PRINT() instance in button.c with an
acpi_handle_debug() call, drop the _COMPONENT and ACPI_MODULE_NAME()
definitions that are not used any more, drop the no longer needed
ACPI_BUTTON_COMPONENT definition from the headers and update the
documentation accordingly.

While at it, replace the direct printk() invocations with pr_info()
(that changes the excessive log level for some of them too) and drop
the unneeded PREFIX sybmbol definition from battery.c.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>

Documentation/firmware-guide/acpi/debug.rst

@@ -52,7 +52,6 @@ shows the supported mask values, currently these::
     ACPI_CA_DISASSEMBLER            0x00000800
     ACPI_COMPILER                   0x00001000
     ACPI_TOOLS                      0x00002000
-    ACPI_BUTTON_COMPONENT           0x00080000
     ACPI_SBS_COMPONENT              0x00100000
     ACPI_FAN_COMPONENT              0x00200000
     ACPI_PCI_COMPONENT              0x00400000

drivers/acpi/button.c

@@ -21,8 +21,6 @@
 #include <linux/dmi.h>
 #include <acpi/button.h>
 
-#define PREFIX "ACPI: "
-
 #define ACPI_BUTTON_CLASS		"button"
 #define ACPI_BUTTON_FILE_STATE		"state"
 #define ACPI_BUTTON_TYPE_UNKNOWN	0x00
@@ -54,9 +52,6 @@ static const char * const lid_init_state_str[] = {
 	[ACPI_BUTTON_LID_INIT_DISABLED]		= "disabled",
 };
 
-#define _COMPONENT		ACPI_BUTTON_COMPONENT
-ACPI_MODULE_NAME("button");
-
 MODULE_AUTHOR("Paul Diefenbaugh");
 MODULE_DESCRIPTION("ACPI Button Driver");
 MODULE_LICENSE("GPL");
@@ -285,7 +280,7 @@ static int acpi_button_add_fs(struct acpi_device *device)
 		return 0;
 
 	if (acpi_button_dir || acpi_lid_dir) {
-		printk(KERN_ERR PREFIX "More than one Lid device found!\n");
+		pr_info("More than one Lid device found!\n");
 		return -EEXIST;
 	}
 
@@ -434,8 +429,8 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
 		}
 		break;
 	default:
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Unsupported event [0x%x]\n", event));
+		acpi_handle_debug(device->handle, "Unsupported event [0x%x]\n",
+				  event);
 		break;
 	}
 }
@@ -523,7 +518,7 @@ static int acpi_button_add(struct acpi_device *device)
 			ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID);
 		input->open = acpi_lid_input_open;
 	} else {
-		printk(KERN_ERR PREFIX "Unsupported hid [%s]\n", hid);
+		pr_info("Unsupported hid [%s]\n", hid);
 		error = -ENODEV;
 		goto err_free_input;
 	}
@@ -567,7 +562,7 @@ static int acpi_button_add(struct acpi_device *device)
 	}
 
 	device_init_wakeup(&device->dev, true);
-	printk(KERN_INFO PREFIX "%s [%s]\n", name, acpi_device_bid(device));
+	pr_info("%s [%s]\n", name, acpi_device_bid(device));
 	return 0;
 
  err_remove_fs:

drivers/acpi/sysfs.c

@@ -52,7 +52,6 @@ static const struct acpi_dlayer acpi_debug_layers[] = {
 	ACPI_DEBUG_INIT(ACPI_COMPILER),
 	ACPI_DEBUG_INIT(ACPI_TOOLS),
 
-	ACPI_DEBUG_INIT(ACPI_BUTTON_COMPONENT),
 	ACPI_DEBUG_INIT(ACPI_SBS_COMPONENT),
 	ACPI_DEBUG_INIT(ACPI_FAN_COMPONENT),
 	ACPI_DEBUG_INIT(ACPI_PCI_COMPONENT),

include/acpi/acpi_drivers.h

@@ -15,7 +15,6 @@
  * Please update drivers/acpi/debug.c and Documentation/firmware-guide/acpi/debug.rst
  * if you add to this list.
  */
-#define ACPI_BUTTON_COMPONENT		0x00080000
 #define ACPI_SBS_COMPONENT		0x00100000
 #define ACPI_FAN_COMPONENT		0x00200000
 #define ACPI_PCI_COMPONENT		0x00400000