linux-kernel - [PATCH v3 02/12] drm: move DRM_SWITCH_POWER defines to drm

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Message-Id: <20190108192939.15255-3-sam@ravnborg.org>
Date:   Tue,  8 Jan 2019 20:29:29 +0100
From:   Sam Ravnborg <sam@...nborg.org>
To:     Daniel Vetter <daniel@...ll.ch>, David Airlie <airlied@...ux.ie>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Sean Paul <sean@...rly.run>,
        David Lechner <david@...hnology.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Noralf Trønnes <noralf@...nnes.org>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Cc:     Sam Ravnborg <sam@...nborg.org>
Subject: [PATCH v3 02/12] drm: move DRM_SWITCH_POWER defines to drm_device.h

Move DRM_SWITCH_POWER out of drmP.h to allow users
to get rid of the drmP include.
Moved to drm_device.h because drm_device.switch_power_state
is the only user.

Converted to enum and added sparse kerneldoc comments.

Signed-off-by: Sam Ravnborg <sam@...nborg.org>
Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Cc: Maxime Ripard <maxime.ripard@...tlin.com>
Cc: Sean Paul <sean@...rly.run>
Cc: David Airlie <airlied@...ux.ie>
Cc: Daniel Vetter <daniel@...ll.ch>
---
 include/drm/drmP.h       |  5 -----
 include/drm/drm_device.h | 29 ++++++++++++++++++++++++++++-
 2 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index db94ef00940e..9e47c8dc6b87 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -94,11 +94,6 @@ struct dma_buf_attachment;
 struct pci_dev;
 struct pci_controller;
 
-#define DRM_SWITCH_POWER_ON 0
-#define DRM_SWITCH_POWER_OFF 1
-#define DRM_SWITCH_POWER_CHANGING 2
-#define DRM_SWITCH_POWER_DYNAMIC_OFF 3
-
 /* returns true if currently okay to sleep */
 static inline bool drm_can_sleep(void)
 {
diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h
index 2b154ead9efc..d7cedbac66a3 100644
--- a/include/drm/drm_device.h
+++ b/include/drm/drm_device.h
@@ -24,6 +24,25 @@ struct inode;
 struct pci_dev;
 struct pci_controller;
 
+
+/**
+ * enum drm_switch_power - power state of drm device
+ */
+
+enum switch_power_state {
+	/** @DRM_SWITCH_POWER_ON: Power state is ON */
+	DRM_SWITCH_POWER_ON = 0,
+
+	/** @DRM_SWITCH_POWER_OFF: Power state is OFF */
+	DRM_SWITCH_POWER_OFF = 1,
+
+	/** @DRM_SWITCH_POWER_CHANGING: Power state is changing */
+	DRM_SWITCH_POWER_CHANGING = 2,
+
+	/** @DRM_SWITCH_POWER_DYNAMIC_OFF: Suspended */
+	DRM_SWITCH_POWER_DYNAMIC_OFF = 3,
+};
+
 /**
  * struct drm_device - DRM device structure
  *
@@ -291,7 +310,15 @@ struct drm_device {
 	/** @vma_offset_manager: GEM information */
 	struct drm_vma_offset_manager *vma_offset_manager;
 
-	int switch_power_state;
+	/**
+	 * @switch_power_state:
+	 *
+	 * Power state of the client.
+	 * Used by drivers supporting the switcheroo driver.
+	 * The state is maintained in the
+	 * &vga_switcheroo_client_ops.set_gpu_state callback
+	 */
+	enum switch_power_state switch_power_state;
 
 	/**
 	 * @fb_helper:
-- 
2.12.0