Merge tag 'omapdss-for-3.7' of git://gitorious.org/linux-omap-dss2/linux into fbdev-next

Omapdss driver changes for the 3.7 merge window.

Notable changes:

* Basic writeback support for DISPC level. Writeback is not yet usable, though,
  as we need higher level code to actually expose the writeback feature to
  userspace.
* Rewriting the omapdss output drivers. We're trying to remove the hard links
  between the omapdss and the panels, and this rewrite work moves us closer to
  that goal.
* Cleanup and restructuring patches that have been made while working on device
  tree support for omapdss. Device tree support is still some way ahead, but
  these patches are good cleanups in themselves.
* Basic OMAP5 DSS support for DPI and DSI outputs.
* Workaround for the problem that GFX overlay's fifo is too small for high
  resolution scenarios, causing underflows.
* Cleanups that remove dependencies to omap platform code.

9 files changed, 144 insertions, 34 deletions

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index ced362533e3c..bfacf0d5a225 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -118,7 +118,8 @@ enum drm_mode_status {
 	.hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \
 	.htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \
 	.vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \
-	.vscan = (vs), .flags = (f), .vrefresh = 0
+	.vscan = (vs), .flags = (f), .vrefresh = 0, \
+	.base.type = DRM_MODE_OBJECT_MODE
 
 #define CRTC_INTERLACE_HALVE_V 0x1 /* halve V values for interlacing */
 
diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h
index 5581980b14f6..3d6301b6ec16 100644
--- a/include/drm/drm_mode.h
+++ b/include/drm/drm_mode.h
@@ -359,8 +359,9 @@ struct drm_mode_mode_cmd {
 	struct drm_mode_modeinfo mode;
 };
 
-#define DRM_MODE_CURSOR_BO	(1<<0)
-#define DRM_MODE_CURSOR_MOVE	(1<<1)
+#define DRM_MODE_CURSOR_BO	0x01
+#define DRM_MODE_CURSOR_MOVE	0x02
+#define DRM_MODE_CURSOR_FLAGS	0x03
 
 /*
  * depending on the value in flags different members are used.
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 4e72a9d48232..4a2ab7c85393 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -601,7 +601,7 @@ static inline void blk_clear_rl_full(struct request_list *rl, bool sync)
  * it already be started by driver.
  */
 #define RQ_NOMERGE_FLAGS	\
-	(REQ_NOMERGE | REQ_STARTED | REQ_SOFTBARRIER | REQ_FLUSH | REQ_FUA)
+	(REQ_NOMERGE | REQ_STARTED | REQ_SOFTBARRIER | REQ_FLUSH | REQ_FUA | REQ_DISCARD)
 #define rq_mergeable(rq)	\
 	(!((rq)->cmd_flags & RQ_NOMERGE_FLAGS) && \
 	 (((rq)->cmd_flags & REQ_DISCARD) || \
@@ -894,6 +894,8 @@ extern void blk_queue_flush_queueable(struct request_queue *q, bool queueable);
 extern struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev);
 
 extern int blk_rq_map_sg(struct request_queue *, struct request *, struct scatterlist *);
+extern int blk_bio_map_sg(struct request_queue *q, struct bio *bio,
+			  struct scatterlist *sglist);
 extern void blk_dump_rq_flags(struct request *, char *);
 extern long nr_blockdev_pages(void);
 
@@ -1139,6 +1141,16 @@ static inline int queue_limit_discard_alignment(struct queue_limits *lim, sector
 		& (lim->discard_granularity - 1);
 }
 
+static inline int bdev_discard_alignment(struct block_device *bdev)
+{
+	struct request_queue *q = bdev_get_queue(bdev);
+
+	if (bdev != bdev->bd_contains)
+		return bdev->bd_part->discard_alignment;
+
+	return q->limits.discard_alignment;
+}
+
 static inline unsigned int queue_discard_zeroes_data(struct request_queue *q)
 {
 	if (q->limits.max_discard_sectors && q->limits.discard_zeroes_data == 1)
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 040b13b5c14a..279b1eaa8b73 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -194,6 +194,10 @@ static inline int cpuidle_play_dead(void) {return -ENODEV; }
 
 #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED
 void cpuidle_coupled_parallel_barrier(struct cpuidle_device *dev, atomic_t *a);
+#else
+static inline void cpuidle_coupled_parallel_barrier(struct cpuidle_device *dev, atomic_t *a)
+{
+}
 #endif
 
 /******************************
diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index 603bec2913b0..06177ba10a16 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -58,13 +58,6 @@ union ktime {
 
 typedef union ktime ktime_t;		/* Kill this */
 
-#define KTIME_MAX			((s64)~((u64)1 << 63))
-#if (BITS_PER_LONG == 64)
-# define KTIME_SEC_MAX			(KTIME_MAX / NSEC_PER_SEC)
-#else
-# define KTIME_SEC_MAX			LONG_MAX
-#endif
-
 /*
  * ktime_t definitions when using the 64-bit scalar representation:
  */
diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h
index 51bf8ada6dc0..49258e0ed1c6 100644
--- a/include/linux/mv643xx_eth.h
+++ b/include/linux/mv643xx_eth.h
@@ -15,6 +15,8 @@
 #define MV643XX_ETH_SIZE_REG_4		0x2224
 #define MV643XX_ETH_BASE_ADDR_ENABLE_REG	0x2290
 
+#define MV643XX_TX_CSUM_DEFAULT_LIMIT	0
+
 struct mv643xx_eth_shared_platform_data {
 	struct mbus_dram_target_info	*dram;
 	struct platform_device	*shared_smi;
diff --git a/include/linux/time.h b/include/linux/time.h
index c81c5e40fcb5..b51e664c83e7 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -107,11 +107,36 @@ static inline struct timespec timespec_sub(struct timespec lhs,
 	return ts_delta;
 }
 
+#define KTIME_MAX			((s64)~((u64)1 << 63))
+#if (BITS_PER_LONG == 64)
+# define KTIME_SEC_MAX			(KTIME_MAX / NSEC_PER_SEC)
+#else
+# define KTIME_SEC_MAX			LONG_MAX
+#endif
+
 /*
  * Returns true if the timespec is norm, false if denorm:
  */
-#define timespec_valid(ts) \
-	(((ts)->tv_sec >= 0) && (((unsigned long) (ts)->tv_nsec) < NSEC_PER_SEC))
+static inline bool timespec_valid(const struct timespec *ts)
+{
+	/* Dates before 1970 are bogus */
+	if (ts->tv_sec < 0)
+		return false;
+	/* Can't have more nanoseconds then a second */
+	if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC)
+		return false;
+	return true;
+}
+
+static inline bool timespec_valid_strict(const struct timespec *ts)
+{
+	if (!timespec_valid(ts))
+		return false;
+	/* Disallow values that could overflow ktime_t */
+	if ((unsigned long long)ts->tv_sec >= KTIME_SEC_MAX)
+		return false;
+	return true;
+}
 
 extern void read_persistent_clock(struct timespec *ts);
 extern void read_boot_clock(struct timespec *ts);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index a6267a2d292b..3729173b7fbc 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -48,10 +48,10 @@
 #define DISPC_IRQ_FRAMEDONEWB		(1 << 23)
 #define DISPC_IRQ_FRAMEDONETV		(1 << 24)
 #define DISPC_IRQ_WBBUFFEROVERFLOW	(1 << 25)
-#define DISPC_IRQ_FRAMEDONE3		(1 << 26)
-#define DISPC_IRQ_VSYNC3		(1 << 27)
-#define DISPC_IRQ_ACBIAS_COUNT_STAT3	(1 << 28)
-#define DISPC_IRQ_SYNC_LOST3		(1 << 29)
+#define DISPC_IRQ_SYNC_LOST3		(1 << 27)
+#define DISPC_IRQ_VSYNC3		(1 << 28)
+#define DISPC_IRQ_ACBIAS_COUNT_STAT3	(1 << 29)
+#define DISPC_IRQ_FRAMEDONE3		(1 << 30)
 
 struct omap_dss_device;
 struct omap_overlay_manager;
@@ -73,6 +73,7 @@ enum omap_plane {
 	OMAP_DSS_VIDEO1	= 1,
 	OMAP_DSS_VIDEO2	= 2,
 	OMAP_DSS_VIDEO3	= 3,
+	OMAP_DSS_WB	= 4,
 };
 
 enum omap_channel {
@@ -186,6 +187,8 @@ enum omap_overlay_caps {
 	OMAP_DSS_OVL_CAP_GLOBAL_ALPHA = 1 << 1,
 	OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA = 1 << 2,
 	OMAP_DSS_OVL_CAP_ZORDER = 1 << 3,
+	OMAP_DSS_OVL_CAP_POS = 1 << 4,
+	OMAP_DSS_OVL_CAP_REPLICATION = 1 << 5,
 };
 
 enum omap_overlay_manager_caps {
@@ -207,6 +210,16 @@ enum omap_hdmi_flags {
 	OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP = 1 << 0,
 };
 
+enum omap_dss_output_id {
+	OMAP_DSS_OUTPUT_DPI	= 1 << 0,
+	OMAP_DSS_OUTPUT_DBI	= 1 << 1,
+	OMAP_DSS_OUTPUT_SDI	= 1 << 2,
+	OMAP_DSS_OUTPUT_DSI1	= 1 << 3,
+	OMAP_DSS_OUTPUT_DSI2	= 1 << 4,
+	OMAP_DSS_OUTPUT_VENC	= 1 << 5,
+	OMAP_DSS_OUTPUT_HDMI	= 1 << 6,
+};
+
 /* RFBI */
 
 struct rfbi_timings {
@@ -243,7 +256,7 @@ void rfbi_bus_unlock(void);
 
 /* DSI */
 
-struct omap_dss_dsi_videomode_data {
+struct omap_dss_dsi_videomode_timings {
 	/* DSI video mode blanking data */
 	/* Unit: byte clock cycles */
 	u16 hsa;
@@ -424,6 +437,8 @@ struct omap_overlay {
 			struct omap_overlay_info *info);
 
 	int (*wait_for_go)(struct omap_overlay *ovl);
+
+	struct omap_dss_device *(*get_device)(struct omap_overlay *ovl);
 };
 
 struct omap_overlay_manager_info {
@@ -448,9 +463,10 @@ struct omap_overlay_manager {
 	enum omap_overlay_manager_caps caps;
 	struct list_head overlays;
 	enum omap_display_type supported_displays;
+	enum omap_dss_output_id supported_outputs;
 
 	/* dynamic fields */
-	struct omap_dss_device *device;
+	struct omap_dss_output *output;
 
 	/*
 	 * The following functions do not block:
@@ -463,9 +479,9 @@ struct omap_overlay_manager {
 	 * interrupt context
 	 */
 
-	int (*set_device)(struct omap_overlay_manager *mgr,
-		struct omap_dss_device *dssdev);
-	int (*unset_device)(struct omap_overlay_manager *mgr);
+	int (*set_output)(struct omap_overlay_manager *mgr,
+		struct omap_dss_output *output);
+	int (*unset_output)(struct omap_overlay_manager *mgr);
 
 	int (*set_manager_info)(struct omap_overlay_manager *mgr,
 			struct omap_overlay_manager_info *info);
@@ -475,6 +491,8 @@ struct omap_overlay_manager {
 	int (*apply)(struct omap_overlay_manager *mgr);
 	int (*wait_for_go)(struct omap_overlay_manager *mgr);
 	int (*wait_for_vsync)(struct omap_overlay_manager *mgr);
+
+	struct omap_dss_device *(*get_device)(struct omap_overlay_manager *mgr);
 };
 
 /* 22 pins means 1 clk lane and 10 data lanes */
@@ -492,6 +510,37 @@ struct omap_dsi_pin_config {
 	int pins[OMAP_DSS_MAX_DSI_PINS];
 };
 
+struct omap_dss_writeback_info {
+	u32 paddr;
+	u32 p_uv_addr;
+	u16 buf_width;
+	u16 width;
+	u16 height;
+	enum omap_color_mode color_mode;
+	u8 rotation;
+	enum omap_dss_rotation_type rotation_type;
+	bool mirror;
+	u8 pre_mult_alpha;
+};
+
+struct omap_dss_output {
+	struct list_head list;
+
+	/* display type supported by the output */
+	enum omap_display_type type;
+
+	/* output instance */
+	enum omap_dss_output_id id;
+
+	/* output's platform device pointer */
+	struct platform_device *pdev;
+
+	/* dynamic fields */
+	struct omap_overlay_manager *manager;
+
+	struct omap_dss_device *device;
+};
+
 struct omap_dss_device {
 	struct device dev;
 
@@ -564,7 +613,7 @@ struct omap_dss_device {
 
 		enum omap_dss_dsi_pixel_format dsi_pix_fmt;
 		enum omap_dss_dsi_mode dsi_mode;
-		struct omap_dss_dsi_videomode_data dsi_vm_data;
+		struct omap_dss_dsi_videomode_timings dsi_vm_timings;
 	} panel;
 
 	struct {
@@ -590,7 +639,7 @@ struct omap_dss_device {
 
 	enum omap_display_caps caps;
 
-	struct omap_overlay_manager *manager;
+	struct omap_dss_output *output;
 
 	enum omap_dss_display_state state;
 
@@ -605,6 +654,8 @@ struct omap_dss_device {
 
 struct omap_dss_hdmi_data
 {
+	int ct_cp_hpd_gpio;
+	int ls_oe_gpio;
 	int hpd_gpio;
 };
 
@@ -699,6 +750,11 @@ struct omap_overlay_manager *omap_dss_get_overlay_manager(int num);
 int omap_dss_get_num_overlays(void);
 struct omap_overlay *omap_dss_get_overlay(int num);
 
+struct omap_dss_output *omap_dss_get_output(enum omap_dss_output_id id);
+int omapdss_output_set_device(struct omap_dss_output *out,
+		struct omap_dss_device *dssdev);
+int omapdss_output_unset_device(struct omap_dss_output *out);
+
 void omapdss_default_get_resolution(struct omap_dss_device *dssdev,
 		u16 *xres, u16 *yres);
 int omapdss_default_get_recommended_bpp(struct omap_dss_device *dssdev);
@@ -719,6 +775,15 @@ int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
 void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel,
 		bool enable);
 int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable);
+void omapdss_dsi_set_timings(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings);
+void omapdss_dsi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h);
+void omapdss_dsi_set_pixel_format(struct omap_dss_device *dssdev,
+		enum omap_dss_dsi_pixel_format fmt);
+void omapdss_dsi_set_operation_mode(struct omap_dss_device *dssdev,
+		enum omap_dss_dsi_mode mode);
+void omapdss_dsi_set_videomode_timings(struct omap_dss_device *dssdev,
+		struct omap_dss_dsi_videomode_timings *timings);
 
 int omap_dsi_update(struct omap_dss_device *dssdev, int channel,
 		void (*callback)(int, void *), void *data);
@@ -727,6 +792,8 @@ int omap_dsi_set_vc_id(struct omap_dss_device *dssdev, int channel, int vc_id);
 void omap_dsi_release_vc(struct omap_dss_device *dssdev, int channel);
 int omapdss_dsi_configure_pins(struct omap_dss_device *dssdev,
 		const struct omap_dsi_pin_config *pin_cfg);
+int omapdss_dsi_set_clocks(struct omap_dss_device *dssdev,
+		unsigned long ddr_clk, unsigned long lp_clk);
 
 int omapdss_dsi_display_enable(struct omap_dss_device *dssdev);
 void omapdss_dsi_display_disable(struct omap_dss_device *dssdev,
@@ -734,22 +801,29 @@ void omapdss_dsi_display_disable(struct omap_dss_device *dssdev,
 
 int omapdss_dpi_display_enable(struct omap_dss_device *dssdev);
 void omapdss_dpi_display_disable(struct omap_dss_device *dssdev);
-void dpi_set_timings(struct omap_dss_device *dssdev,
-			struct omap_video_timings *timings);
+void omapdss_dpi_set_timings(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings);
 int dpi_check_timings(struct omap_dss_device *dssdev,
 			struct omap_video_timings *timings);
+void omapdss_dpi_set_data_lines(struct omap_dss_device *dssdev, int data_lines);
 
 int omapdss_sdi_display_enable(struct omap_dss_device *dssdev);
 void omapdss_sdi_display_disable(struct omap_dss_device *dssdev);
+void omapdss_sdi_set_timings(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings);
+void omapdss_sdi_set_datapairs(struct omap_dss_device *dssdev, int datapairs);
 
 int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev);
 void omapdss_rfbi_display_disable(struct omap_dss_device *dssdev);
-int omap_rfbi_prepare_update(struct omap_dss_device *dssdev,
-		u16 *x, u16 *y, u16 *w, u16 *h);
-int omap_rfbi_update(struct omap_dss_device *dssdev,
-		u16 x, u16 y, u16 w, u16 h,
-		void (*callback)(void *), void *data);
-int omap_rfbi_configure(struct omap_dss_device *dssdev, int pixel_size,
+int omap_rfbi_update(struct omap_dss_device *dssdev, void (*callback)(void *),
+		void *data);
+int omap_rfbi_configure(struct omap_dss_device *dssdev);
+void omapdss_rfbi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h);
+void omapdss_rfbi_set_pixel_size(struct omap_dss_device *dssdev,
+		int pixel_size);
+void omapdss_rfbi_set_data_lines(struct omap_dss_device *dssdev,
 		int data_lines);
+void omapdss_rfbi_set_interface_timings(struct omap_dss_device *dssdev,
+		struct rfbi_timings *timings);
 
 #endif
diff --git a/include/xen/events.h b/include/xen/events.h
index 9c641deb65d2..04399b28e821 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -58,8 +58,6 @@ void notify_remote_via_irq(int irq);
 
 void xen_irq_resume(void);
 
-void xen_hvm_prepare_kexec(struct shared_info *sip, unsigned long pfn);
-
 /* Clear an irq's pending state, in preparation for polling on it */
 void xen_clear_irq_pending(int irq);
 void xen_set_irq_pending(int irq);