Merge branch 'drm/next/atomic' of git://linuxtv.org/pinchartl/fbdev into drm-next (7e477484) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/gpu/drm/rcar-du/rcar_du_crtc.c

+185 −215

Original line number	Diff line number	Diff line
		@@ -15,6 +15,8 @@
		#include <linux/mutex.h>

		#include <drm/drmP.h>
		#include <drm/drm_atomic.h>
		#include <drm/drm_atomic_helper.h>
		#include <drm/drm_crtc.h>
		#include <drm/drm_crtc_helper.h>
		#include <drm/drm_fb_cma_helper.h>
		@@ -99,9 +101,13 @@ static void rcar_du_crtc_put(struct rcar_du_crtc *rcrtc)
		clk_disable_unprepare(rcrtc->clock);
		}

		/* -----------------------------------------------------------------------------
		* Hardware Setup
		*/

		static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc)
		{
		const struct drm_display_mode *mode = &rcrtc->crtc.mode;
		const struct drm_display_mode *mode = &rcrtc->crtc.state->adjusted_mode;
		unsigned long mode_clock = mode->clock * 1000;
		unsigned long clk;
		u32 value;
		@@ -187,9 +193,19 @@ void rcar_du_crtc_route_output(struct drm_crtc *crtc,
		rcdu->dpad0_source = rcrtc->index;
		}

		void rcar_du_crtc_update_planes(struct drm_crtc *crtc)
		static unsigned int plane_zpos(struct rcar_du_plane *plane)
		{
		return to_rcar_du_plane_state(plane->plane.state)->zpos;
		}

		static const struct rcar_du_format_info *
		plane_format(struct rcar_du_plane *plane)
		{
		return to_rcar_du_plane_state(plane->plane.state)->format;
		}

		static void rcar_du_crtc_update_planes(struct rcar_du_crtc *rcrtc)
		{
		struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
		struct rcar_du_plane *planes[RCAR_DU_NUM_HW_PLANES];
		unsigned int num_planes = 0;
		unsigned int prio = 0;
		@@ -201,29 +217,30 @@ void rcar_du_crtc_update_planes(struct drm_crtc *crtc)
		struct rcar_du_plane *plane = &rcrtc->group->planes.planes[i];
		unsigned int j;

		if (plane->crtc != &rcrtc->crtc \|\| !plane->enabled)
		if (plane->plane.state->crtc != &rcrtc->crtc)
		continue;

		/* Insert the plane in the sorted planes array. */
		for (j = num_planes++; j > 0; --j) {
		if (planes[j-1]->zpos <= plane->zpos)
		if (plane_zpos(planes[j-1]) <= plane_zpos(plane))
		break;
		planes[j] = planes[j-1];
		}

		planes[j] = plane;
		prio += plane->format->planes * 4;
		prio += plane_format(plane)->planes * 4;
		}

		for (i = 0; i < num_planes; ++i) {
		struct rcar_du_plane *plane = planes[i];
		unsigned int index = plane->hwindex;
		struct drm_plane_state *state = plane->plane.state;
		unsigned int index = to_rcar_du_plane_state(state)->hwindex;

		prio -= 4;
		dspr \|= (index + 1) << prio;
		dptsr \|= DPTSR_PnDK(index) \| DPTSR_PnTS(index);

		if (plane->format->planes == 2) {
		if (plane_format(plane)->planes == 2) {
		index = (index + 1) % 8;

		prio -= 4;
		@@ -236,8 +253,6 @@ void rcar_du_crtc_update_planes(struct drm_crtc *crtc)
		* with superposition controller 2.
		*/
		if (rcrtc->index % 2) {
		u32 value = rcar_du_group_read(rcrtc->group, DPTSR);

		/* The DPTSR register is updated when the display controller is
		* stopped. We thus need to restart the DU. Once again, sorry
		* for the flicker. One way to mitigate the issue would be to
		@@ -245,29 +260,104 @@ void rcar_du_crtc_update_planes(struct drm_crtc *crtc)
		* split, or through a module parameter). Flicker would then
		* occur only if we need to break the pre-association.
		*/
		if (value != dptsr) {
		mutex_lock(&rcrtc->group->lock);
		if (rcar_du_group_read(rcrtc->group, DPTSR) != dptsr) {
		rcar_du_group_write(rcrtc->group, DPTSR, dptsr);
		if (rcrtc->group->used_crtcs)
		rcar_du_group_restart(rcrtc->group);
		}
		mutex_unlock(&rcrtc->group->lock);
		}

		rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? DS2PR : DS1PR,
		dspr);
		}

		/* -----------------------------------------------------------------------------
		* Page Flip
		*/

		void rcar_du_crtc_cancel_page_flip(struct rcar_du_crtc *rcrtc,
		struct drm_file *file)
		{
		struct drm_pending_vblank_event *event;
		struct drm_device *dev = rcrtc->crtc.dev;
		unsigned long flags;

		/* Destroy the pending vertical blanking event associated with the
		* pending page flip, if any, and disable vertical blanking interrupts.
		*/
		spin_lock_irqsave(&dev->event_lock, flags);
		event = rcrtc->event;
		if (event && event->base.file_priv == file) {
		rcrtc->event = NULL;
		event->base.destroy(&event->base);
		drm_crtc_vblank_put(&rcrtc->crtc);
		}
		spin_unlock_irqrestore(&dev->event_lock, flags);
		}

		static void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc)
		{
		struct drm_pending_vblank_event *event;
		struct drm_device *dev = rcrtc->crtc.dev;
		unsigned long flags;

		spin_lock_irqsave(&dev->event_lock, flags);
		event = rcrtc->event;
		rcrtc->event = NULL;
		spin_unlock_irqrestore(&dev->event_lock, flags);

		if (event == NULL)
		return;

		spin_lock_irqsave(&dev->event_lock, flags);
		drm_send_vblank_event(dev, rcrtc->index, event);
		wake_up(&rcrtc->flip_wait);
		spin_unlock_irqrestore(&dev->event_lock, flags);

		drm_crtc_vblank_put(&rcrtc->crtc);
		}

		static bool rcar_du_crtc_page_flip_pending(struct rcar_du_crtc *rcrtc)
		{
		struct drm_device *dev = rcrtc->crtc.dev;
		unsigned long flags;
		bool pending;

		spin_lock_irqsave(&dev->event_lock, flags);
		pending = rcrtc->event != NULL;
		spin_unlock_irqrestore(&dev->event_lock, flags);

		return pending;
		}

		static void rcar_du_crtc_wait_page_flip(struct rcar_du_crtc *rcrtc)
		{
		struct rcar_du_device *rcdu = rcrtc->group->dev;

		if (wait_event_timeout(rcrtc->flip_wait,
		!rcar_du_crtc_page_flip_pending(rcrtc),
		msecs_to_jiffies(50)))
		return;

		dev_warn(rcdu->dev, "page flip timeout\n");

		rcar_du_crtc_finish_page_flip(rcrtc);
		}

		/* -----------------------------------------------------------------------------
		* Start/Stop and Suspend/Resume
		*/

		static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc)
		{
		struct drm_crtc *crtc = &rcrtc->crtc;
		bool interlaced;
		unsigned int i;

		if (rcrtc->started)
		return;

		if (WARN_ON(rcrtc->plane->format == NULL))
		return;

		/* Set display off and background to black */
		rcar_du_crtc_write(rcrtc, DOOR, DOOR_RGB(0, 0, 0));
		rcar_du_crtc_write(rcrtc, BPOR, BPOR_RGB(0, 0, 0));
		@@ -276,20 +366,8 @@ static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc)
		rcar_du_crtc_set_display_timing(rcrtc);
		rcar_du_group_set_routing(rcrtc->group);

		mutex_lock(&rcrtc->group->planes.lock);
		rcrtc->plane->enabled = true;
		rcar_du_crtc_update_planes(crtc);
		mutex_unlock(&rcrtc->group->planes.lock);

		/* Setup planes. */
		for (i = 0; i < ARRAY_SIZE(rcrtc->group->planes.planes); ++i) {
		struct rcar_du_plane *plane = &rcrtc->group->planes.planes[i];

		if (plane->crtc != crtc \|\| !plane->enabled)
		continue;

		rcar_du_plane_setup(plane);
		}
		/* Start with all planes disabled. */
		rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? DS2PR : DS1PR, 0);

		/* Select master sync mode. This enables display operation in master
		* sync mode (with the HSYNC and VSYNC signals configured as outputs and
		@@ -302,6 +380,9 @@ static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc)

		rcar_du_group_start_stop(rcrtc->group, true);

		/* Turn vertical blanking interrupt reporting back on. */
		drm_crtc_vblank_on(crtc);

		rcrtc->started = true;
		}

		@@ -312,10 +393,12 @@ static void rcar_du_crtc_stop(struct rcar_du_crtc *rcrtc)
		if (!rcrtc->started)
		return;

		mutex_lock(&rcrtc->group->planes.lock);
		rcrtc->plane->enabled = false;
		rcar_du_crtc_update_planes(crtc);
		mutex_unlock(&rcrtc->group->planes.lock);
		/* Disable vertical blanking interrupt reporting. We first need to wait
		* for page flip completion before stopping the CRTC as userspace
		* expects page flips to eventually complete.
		*/
		rcar_du_crtc_wait_page_flip(rcrtc);
		drm_crtc_vblank_off(crtc);

		/* Select switch sync mode. This stops display operation and configures
		* the HSYNC and VSYNC signals as inputs.
		@@ -335,196 +418,111 @@ void rcar_du_crtc_suspend(struct rcar_du_crtc *rcrtc)

		void rcar_du_crtc_resume(struct rcar_du_crtc *rcrtc)
		{
		if (rcrtc->dpms != DRM_MODE_DPMS_ON)
		unsigned int i;

		if (!rcrtc->enabled)
		return;

		rcar_du_crtc_get(rcrtc);
		rcar_du_crtc_start(rcrtc);
		}

		static void rcar_du_crtc_update_base(struct rcar_du_crtc *rcrtc)
		{
		struct drm_crtc *crtc = &rcrtc->crtc;

		rcar_du_plane_compute_base(rcrtc->plane, crtc->primary->fb);
		rcar_du_plane_update_base(rcrtc->plane);
		}

		static void rcar_du_crtc_dpms(struct drm_crtc *crtc, int mode)
		{
		struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);

		if (mode != DRM_MODE_DPMS_ON)
		mode = DRM_MODE_DPMS_OFF;
		/* Commit the planes state. */
		for (i = 0; i < ARRAY_SIZE(rcrtc->group->planes.planes); ++i) {
		struct rcar_du_plane *plane = &rcrtc->group->planes.planes[i];

		if (rcrtc->dpms == mode)
		return;
		if (plane->plane.state->crtc != &rcrtc->crtc)
		continue;

		if (mode == DRM_MODE_DPMS_ON) {
		rcar_du_crtc_get(rcrtc);
		rcar_du_crtc_start(rcrtc);
		} else {
		rcar_du_crtc_stop(rcrtc);
		rcar_du_crtc_put(rcrtc);
		rcar_du_plane_setup(plane);
		}

		rcrtc->dpms = mode;
		rcar_du_crtc_update_planes(rcrtc);
		}

		static bool rcar_du_crtc_mode_fixup(struct drm_crtc *crtc,
		const struct drm_display_mode *mode,
		struct drm_display_mode *adjusted_mode)
		{
		/* TODO Fixup modes */
		return true;
		}
		/* -----------------------------------------------------------------------------
		* CRTC Functions
		*/

		static void rcar_du_crtc_mode_prepare(struct drm_crtc *crtc)
		static void rcar_du_crtc_enable(struct drm_crtc *crtc)
		{
		struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);

		/* We need to access the hardware during mode set, acquire a reference
		* to the CRTC.
		*/
		rcar_du_crtc_get(rcrtc);
		if (rcrtc->enabled)
		return;

		/* Stop the CRTC and release the plane. Force the DPMS mode to off as a
		* result.
		*/
		rcar_du_crtc_stop(rcrtc);
		rcar_du_plane_release(rcrtc->plane);
		rcar_du_crtc_get(rcrtc);
		rcar_du_crtc_start(rcrtc);

		rcrtc->dpms = DRM_MODE_DPMS_OFF;
		rcrtc->enabled = true;
		}

		static int rcar_du_crtc_mode_set(struct drm_crtc *crtc,
		struct drm_display_mode *mode,
		struct drm_display_mode *adjusted_mode,
		int x, int y,
		struct drm_framebuffer *old_fb)
		static void rcar_du_crtc_disable(struct drm_crtc *crtc)
		{
		struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
		struct rcar_du_device *rcdu = rcrtc->group->dev;
		const struct rcar_du_format_info *format;
		int ret;

		format = rcar_du_format_info(crtc->primary->fb->pixel_format);
		if (format == NULL) {
		dev_dbg(rcdu->dev, "mode_set: unsupported format %08x\n",
		crtc->primary->fb->pixel_format);
		ret = -EINVAL;
		goto error;
		}

		ret = rcar_du_plane_reserve(rcrtc->plane, format);
		if (ret < 0)
		goto error;

		rcrtc->plane->format = format;

		rcrtc->plane->src_x = x;
		rcrtc->plane->src_y = y;
		rcrtc->plane->width = mode->hdisplay;
		rcrtc->plane->height = mode->vdisplay;
		if (!rcrtc->enabled)
		return;

		rcar_du_plane_compute_base(rcrtc->plane, crtc->primary->fb);
		rcar_du_crtc_stop(rcrtc);
		rcar_du_crtc_put(rcrtc);

		rcrtc->enabled = false;
		rcrtc->outputs = 0;

		return 0;

		error:
		/* There's no rollback/abort operation to clean up in case of error. We
		* thus need to release the reference to the CRTC acquired in prepare()
		* here.
		*/
		rcar_du_crtc_put(rcrtc);
		return ret;
		}

		static void rcar_du_crtc_mode_commit(struct drm_crtc *crtc)
		static bool rcar_du_crtc_mode_fixup(struct drm_crtc *crtc,
		const struct drm_display_mode *mode,
		struct drm_display_mode *adjusted_mode)
		{
		struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);

		/* We're done, restart the CRTC and set the DPMS mode to on. The
		* reference to the DU acquired at prepare() time will thus be released
		* by the DPMS handler (possibly called by the disable() handler).
		*/
		rcar_du_crtc_start(rcrtc);
		rcrtc->dpms = DRM_MODE_DPMS_ON;
		/* TODO Fixup modes */
		return true;
		}

		static int rcar_du_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
		struct drm_framebuffer *old_fb)
		static void rcar_du_crtc_atomic_begin(struct drm_crtc *crtc)
		{
		struct drm_pending_vblank_event *event = crtc->state->event;
		struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
		struct drm_device *dev = rcrtc->crtc.dev;
		unsigned long flags;

		rcrtc->plane->src_x = x;
		rcrtc->plane->src_y = y;
		if (event) {
		event->pipe = rcrtc->index;

		rcar_du_crtc_update_base(rcrtc);
		WARN_ON(drm_crtc_vblank_get(crtc) != 0);

		return 0;
		spin_lock_irqsave(&dev->event_lock, flags);
		rcrtc->event = event;
		spin_unlock_irqrestore(&dev->event_lock, flags);
		}
		}

		static void rcar_du_crtc_disable(struct drm_crtc *crtc)
		static void rcar_du_crtc_atomic_flush(struct drm_crtc *crtc)
		{
		struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);

		rcar_du_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
		rcar_du_plane_release(rcrtc->plane);
		rcar_du_crtc_update_planes(rcrtc);
		}

		static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
		.dpms = rcar_du_crtc_dpms,
		.mode_fixup = rcar_du_crtc_mode_fixup,
		.prepare = rcar_du_crtc_mode_prepare,
		.commit = rcar_du_crtc_mode_commit,
		.mode_set = rcar_du_crtc_mode_set,
		.mode_set_base = rcar_du_crtc_mode_set_base,
		.disable = rcar_du_crtc_disable,
		.enable = rcar_du_crtc_enable,
		.atomic_begin = rcar_du_crtc_atomic_begin,
		.atomic_flush = rcar_du_crtc_atomic_flush,
		};

		void rcar_du_crtc_cancel_page_flip(struct rcar_du_crtc *rcrtc,
		struct drm_file *file)
		{
		struct drm_pending_vblank_event *event;
		struct drm_device *dev = rcrtc->crtc.dev;
		unsigned long flags;
		static const struct drm_crtc_funcs crtc_funcs = {
		.reset = drm_atomic_helper_crtc_reset,
		.destroy = drm_crtc_cleanup,
		.set_config = drm_atomic_helper_set_config,
		.page_flip = drm_atomic_helper_page_flip,
		.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
		.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
		};

		/* Destroy the pending vertical blanking event associated with the
		* pending page flip, if any, and disable vertical blanking interrupts.
		/* -----------------------------------------------------------------------------
		* Interrupt Handling
		*/
		spin_lock_irqsave(&dev->event_lock, flags);
		event = rcrtc->event;
		if (event && event->base.file_priv == file) {
		rcrtc->event = NULL;
		event->base.destroy(&event->base);
		drm_vblank_put(dev, rcrtc->index);
		}
		spin_unlock_irqrestore(&dev->event_lock, flags);
		}

		static void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc)
		{
		struct drm_pending_vblank_event *event;
		struct drm_device *dev = rcrtc->crtc.dev;
		unsigned long flags;

		spin_lock_irqsave(&dev->event_lock, flags);
		event = rcrtc->event;
		rcrtc->event = NULL;
		spin_unlock_irqrestore(&dev->event_lock, flags);

		if (event == NULL)
		return;

		spin_lock_irqsave(&dev->event_lock, flags);
		drm_send_vblank_event(dev, rcrtc->index, event);
		spin_unlock_irqrestore(&dev->event_lock, flags);

		drm_vblank_put(dev, rcrtc->index);
		}

		static irqreturn_t rcar_du_crtc_irq(int irq, void *arg)
		{
		@@ -544,41 +542,9 @@ static irqreturn_t rcar_du_crtc_irq(int irq, void *arg)
		return ret;
		}

		static int rcar_du_crtc_page_flip(struct drm_crtc *crtc,
		struct drm_framebuffer *fb,
		struct drm_pending_vblank_event *event,
		uint32_t page_flip_flags)
		{
		struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
		struct drm_device *dev = rcrtc->crtc.dev;
		unsigned long flags;

		spin_lock_irqsave(&dev->event_lock, flags);
		if (rcrtc->event != NULL) {
		spin_unlock_irqrestore(&dev->event_lock, flags);
		return -EBUSY;
		}
		spin_unlock_irqrestore(&dev->event_lock, flags);

		crtc->primary->fb = fb;
		rcar_du_crtc_update_base(rcrtc);

		if (event) {
		event->pipe = rcrtc->index;
		drm_vblank_get(dev, rcrtc->index);
		spin_lock_irqsave(&dev->event_lock, flags);
		rcrtc->event = event;
		spin_unlock_irqrestore(&dev->event_lock, flags);
		}

		return 0;
		}

		static const struct drm_crtc_funcs crtc_funcs = {
		.destroy = drm_crtc_cleanup,
		.set_config = drm_crtc_helper_set_config,
		.page_flip = rcar_du_crtc_page_flip,
		};
		/* -----------------------------------------------------------------------------
		* Initialization
		*/

		int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index)
		{
		@@ -620,20 +586,24 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index)
		return -EPROBE_DEFER;
		}

		init_waitqueue_head(&rcrtc->flip_wait);

		rcrtc->group = rgrp;
		rcrtc->mmio_offset = mmio_offsets[index];
		rcrtc->index = index;
		rcrtc->dpms = DRM_MODE_DPMS_OFF;
		rcrtc->plane = &rgrp->planes.planes[index % 2];

		rcrtc->plane->crtc = crtc;
		rcrtc->enabled = false;

		ret = drm_crtc_init(rcdu->ddev, crtc, &crtc_funcs);
		ret = drm_crtc_init_with_planes(rcdu->ddev, crtc,
		&rgrp->planes.planes[index % 2].plane,
		NULL, &crtc_funcs);
		if (ret < 0)
		return ret;

		drm_crtc_helper_add(crtc, &crtc_helper_funcs);

		/* Start with vertical blanking interrupt reporting disabled. */
		drm_crtc_vblank_off(crtc);

		/* Register the interrupt handler. */
		if (rcar_du_has(rcdu, RCAR_DU_FEATURE_CRTC_IRQ_CLOCK)) {
		irq = platform_get_irq(pdev, index);

drivers/gpu/drm/rcar-du/rcar_du_crtc.h

+4 −4

Original line number	Diff line number	Diff line
		@@ -15,12 +15,12 @@
		#define __RCAR_DU_CRTC_H__

		#include <linux/mutex.h>
		#include <linux/wait.h>

		#include <drm/drmP.h>
		#include <drm/drm_crtc.h>

		struct rcar_du_group;
		struct rcar_du_plane;

		struct rcar_du_crtc {
		struct drm_crtc crtc;
		@@ -32,11 +32,12 @@ struct rcar_du_crtc {
		bool started;

		struct drm_pending_vblank_event *event;
		wait_queue_head_t flip_wait;

		unsigned int outputs;
		int dpms;
		bool enabled;

		struct rcar_du_group *group;
		struct rcar_du_plane *plane;
		};

		#define to_rcar_crtc(c) container_of(c, struct rcar_du_crtc, crtc)
		@@ -59,6 +60,5 @@ void rcar_du_crtc_resume(struct rcar_du_crtc *rcrtc);

		void rcar_du_crtc_route_output(struct drm_crtc *crtc,
		enum rcar_du_output output);
		void rcar_du_crtc_update_planes(struct drm_crtc *crtc);

		#endif /* __RCAR_DU_CRTC_H__ */

drivers/gpu/drm/rcar-du/rcar_du_drv.c

+11 −6

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@
		#include <linux/platform_device.h>
		#include <linux/pm.h>
		#include <linux/slab.h>
		#include <linux/wait.h>

		#include <drm/drmP.h>
		#include <drm/drm_crtc_helper.h>
		@@ -163,6 +164,8 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags)
		return -ENOMEM;
		}

		init_waitqueue_head(&rcdu->commit.wait);

		rcdu->dev = &pdev->dev;
		rcdu->info = np ? of_match_device(rcar_du_of_table, rcdu->dev)->data
		: (void *)platform_get_device_id(pdev)->driver_data;
		@@ -175,17 +178,19 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags)
		if (IS_ERR(rcdu->mmio))
		return PTR_ERR(rcdu->mmio);

		/* DRM/KMS objects */
		ret = rcar_du_modeset_init(rcdu);
		/* Initialize vertical blanking interrupts handling. Start with vblank
		* disabled for all CRTCs.
		*/
		ret = drm_vblank_init(dev, (1 << rcdu->info->num_crtcs) - 1);
		if (ret < 0) {
		dev_err(&pdev->dev, "failed to initialize DRM/KMS\n");
		dev_err(&pdev->dev, "failed to initialize vblank\n");
		goto done;
		}

		/* vblank handling */
		ret = drm_vblank_init(dev, (1 << rcdu->num_crtcs) - 1);
		/* DRM/KMS objects */
		ret = rcar_du_modeset_init(rcdu);
		if (ret < 0) {
		dev_err(&pdev->dev, "failed to initialize vblank\n");
		dev_err(&pdev->dev, "failed to initialize DRM/KMS\n");
		goto done;
		}

drivers/gpu/drm/rcar-du/rcar_du_drv.h

+13 −3

Original line number	Diff line number	Diff line
		@@ -15,6 +15,7 @@
		#define __RCAR_DU_DRV_H__

		#include <linux/kernel.h>
		#include <linux/wait.h>

		#include "rcar_du_crtc.h"
		#include "rcar_du_group.h"
		@@ -64,6 +65,10 @@ struct rcar_du_device_info {
		unsigned int num_lvds;
		};

		#define RCAR_DU_MAX_CRTCS 3
		#define RCAR_DU_MAX_GROUPS DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2)
		#define RCAR_DU_MAX_LVDS 2

		struct rcar_du_device {
		struct device *dev;
		const struct rcar_du_device_info *info;
		@@ -73,13 +78,18 @@ struct rcar_du_device {
		struct drm_device *ddev;
		struct drm_fbdev_cma *fbdev;

		struct rcar_du_crtc crtcs[3];
		struct rcar_du_crtc crtcs[RCAR_DU_MAX_CRTCS];
		unsigned int num_crtcs;

		struct rcar_du_group groups[2];
		struct rcar_du_group groups[RCAR_DU_MAX_GROUPS];

		unsigned int dpad0_source;
		struct rcar_du_lvdsenc *lvds[2];
		struct rcar_du_lvdsenc *lvds[RCAR_DU_MAX_LVDS];

		struct {
		wait_queue_head_t wait;
		u32 pending;
		} commit;
		};

		static inline bool rcar_du_has(struct rcar_du_device *rcdu,

drivers/gpu/drm/rcar-du/rcar_du_encoder.c

+23 −48

Original line number	Diff line number	Diff line
		@@ -42,46 +42,40 @@ rcar_du_connector_best_encoder(struct drm_connector *connector)
		* Encoder
		*/

		static void rcar_du_encoder_dpms(struct drm_encoder *encoder, int mode)
		static void rcar_du_encoder_disable(struct drm_encoder *encoder)
		{
		struct rcar_du_encoder *renc = to_rcar_encoder(encoder);

		if (mode != DRM_MODE_DPMS_ON)
		mode = DRM_MODE_DPMS_OFF;
		if (renc->lvds)
		rcar_du_lvdsenc_enable(renc->lvds, encoder->crtc, false);
		}

		static void rcar_du_encoder_enable(struct drm_encoder *encoder)
		{
		struct rcar_du_encoder *renc = to_rcar_encoder(encoder);

		if (renc->lvds)
		rcar_du_lvdsenc_dpms(renc->lvds, encoder->crtc, mode);
		rcar_du_lvdsenc_enable(renc->lvds, encoder->crtc, true);
		}

		static bool rcar_du_encoder_mode_fixup(struct drm_encoder *encoder,
		const struct drm_display_mode *mode,
		struct drm_display_mode *adjusted_mode)
		static int rcar_du_encoder_atomic_check(struct drm_encoder *encoder,
		struct drm_crtc_state *crtc_state,
		struct drm_connector_state *conn_state)
		{
		struct rcar_du_encoder *renc = to_rcar_encoder(encoder);
		struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode;
		const struct drm_display_mode *mode = &crtc_state->mode;
		const struct drm_display_mode *panel_mode;
		struct drm_connector *connector = conn_state->connector;
		struct drm_device *dev = encoder->dev;
		struct drm_connector *connector;
		bool found = false;

		/* DAC encoders have currently no restriction on the mode. */
		if (encoder->encoder_type == DRM_MODE_ENCODER_DAC)
		return true;

		list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		if (connector->encoder == encoder) {
		found = true;
		break;
		}
		}

		if (!found) {
		dev_dbg(dev->dev, "mode_fixup: no connector found\n");
		return false;
		}
		return 0;

		if (list_empty(&connector->modes)) {
		dev_dbg(dev->dev, "mode_fixup: empty modes list\n");
		return false;
		dev_dbg(dev->dev, "encoder: empty modes list\n");
		return -EINVAL;
		}

		panel_mode = list_first_entry(&connector->modes,
		@@ -90,7 +84,7 @@ static bool rcar_du_encoder_mode_fixup(struct drm_encoder *encoder,
		/* We're not allowed to modify the resolution. */
		if (mode->hdisplay != panel_mode->hdisplay \|\|
		mode->vdisplay != panel_mode->vdisplay)
		return false;
		return -EINVAL;

		/* The flat panel mode is fixed, just copy it to the adjusted mode. */
		drm_mode_copy(adjusted_mode, panel_mode);
		@@ -102,25 +96,7 @@ static bool rcar_du_encoder_mode_fixup(struct drm_encoder *encoder,
		adjusted_mode->clock = clamp(adjusted_mode->clock,
		30000, 150000);

		return true;
		}

		static void rcar_du_encoder_mode_prepare(struct drm_encoder *encoder)
		{
		struct rcar_du_encoder *renc = to_rcar_encoder(encoder);

		if (renc->lvds)
		rcar_du_lvdsenc_dpms(renc->lvds, encoder->crtc,
		DRM_MODE_DPMS_OFF);
		}

		static void rcar_du_encoder_mode_commit(struct drm_encoder *encoder)
		{
		struct rcar_du_encoder *renc = to_rcar_encoder(encoder);

		if (renc->lvds)
		rcar_du_lvdsenc_dpms(renc->lvds, encoder->crtc,
		DRM_MODE_DPMS_ON);
		return 0;
		}

		static void rcar_du_encoder_mode_set(struct drm_encoder *encoder,
		@@ -133,11 +109,10 @@ static void rcar_du_encoder_mode_set(struct drm_encoder *encoder,
		}

		static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
		.dpms = rcar_du_encoder_dpms,
		.mode_fixup = rcar_du_encoder_mode_fixup,
		.prepare = rcar_du_encoder_mode_prepare,
		.commit = rcar_du_encoder_mode_commit,
		.mode_set = rcar_du_encoder_mode_set,
		.disable = rcar_du_encoder_disable,
		.enable = rcar_du_encoder_enable,
		.atomic_check = rcar_du_encoder_atomic_check,
		};

		static const struct drm_encoder_funcs encoder_funcs = {