This switches to drm_atomic_helper_dirtyfb() as the framebuffer dirty
handler. All flushing will now happen in the pipe functions.
Also enable the damage plane property for all except repaper which can
only do full updates.
ili9225:
This change made ili9225_init() equal to mipi_dbi_init() so use it.
v3: Include vblank header (Sam)
ili9225 and st7586 can't use mipi_dbi_enable_flush() (David)
v2: Remove fb check in mipi_dbi_enable_flush() it can't be NULL
(kbuild test robot)
Cc: David Lechner <david@xxxxxxxxxxxxxx>
Cc: Eric Anholt <eric@xxxxxxxxxx>
Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>
Acked-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Reviewed-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
---
drivers/gpu/drm/tinydrm/core/tinydrm-core.c | 21 +---
.../gpu/drm/tinydrm/core/tinydrm-helpers.c | 91 +-------------
drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c | 31 -----
drivers/gpu/drm/tinydrm/hx8357d.c | 2 +-
drivers/gpu/drm/tinydrm/ili9225.c | 112 +++++++-----------
drivers/gpu/drm/tinydrm/ili9341.c | 2 +-
drivers/gpu/drm/tinydrm/mi0283qt.c | 2 +-
drivers/gpu/drm/tinydrm/mipi-dbi.c | 79 +++++++-----
drivers/gpu/drm/tinydrm/repaper.c | 40 ++++---
drivers/gpu/drm/tinydrm/st7586.c | 63 ++++++----
drivers/gpu/drm/tinydrm/st7735r.c | 2 +-
include/drm/tinydrm/mipi-dbi.h | 2 +
include/drm/tinydrm/tinydrm-helpers.h | 11 +-
include/drm/tinydrm/tinydrm.h | 26 ----
14 files changed, 165 insertions(+), 319 deletions(-)
diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-core.c b/drivers/gpu/drm/tinydrm/core/tinydrm-core.c
index aeb93eadb047..614f532ea89f 100644
--- a/drivers/gpu/drm/tinydrm/core/tinydrm-core.c
+++ b/drivers/gpu/drm/tinydrm/core/tinydrm-core.c
@@ -39,31 +39,17 @@
* and registers the DRM device using devm_tinydrm_register().
*/
-static struct drm_framebuffer *
-tinydrm_fb_create(struct drm_device *drm, struct drm_file *file_priv,
- const struct drm_mode_fb_cmd2 *mode_cmd)
-{
- struct tinydrm_device *tdev = drm->dev_private;
-
- return drm_gem_fb_create_with_funcs(drm, file_priv, mode_cmd,
- tdev->fb_funcs);
-}
-
static const struct drm_mode_config_funcs tinydrm_mode_config_funcs = {
- .fb_create = tinydrm_fb_create,
+ .fb_create = drm_gem_fb_create_with_dirty,
.atomic_check = drm_atomic_helper_check,
.atomic_commit = drm_atomic_helper_commit,
};
static int tinydrm_init(struct device *parent, struct tinydrm_device *tdev,
- const struct drm_framebuffer_funcs *fb_funcs,
struct drm_driver *driver)
{
struct drm_device *drm;
- mutex_init(&tdev->dirty_lock);
- tdev->fb_funcs = fb_funcs;
-
/*
* We don't embed drm_device, because that prevent us from using
* devm_kzalloc() to allocate tinydrm_device in the driver since
@@ -86,7 +72,6 @@ static int tinydrm_init(struct device *parent, struct tinydrm_device *tdev,
static void tinydrm_fini(struct tinydrm_device *tdev)
{
drm_mode_config_cleanup(tdev->drm);
- mutex_destroy(&tdev->dirty_lock);
tdev->drm->dev_private = NULL;
drm_dev_put(tdev->drm);
}
@@ -100,7 +85,6 @@ static void devm_tinydrm_release(void *data)
* devm_tinydrm_init - Initialize tinydrm device
* @parent: Parent device object
* @tdev: tinydrm device
- * @fb_funcs: Framebuffer functions
* @driver: DRM driver
*
* This function initializes @tdev, the underlying DRM device and it's
@@ -111,12 +95,11 @@ static void devm_tinydrm_release(void *data)
* Zero on success, negative error code on failure.
*/
int devm_tinydrm_init(struct device *parent, struct tinydrm_device *tdev,
- const struct drm_framebuffer_funcs *fb_funcs,
struct drm_driver *driver)
{
int ret;
- ret = tinydrm_init(parent, tdev, fb_funcs, driver);
+ ret = tinydrm_init(parent, tdev, driver);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
index d0ece6ad4a1c..2737b6fdadc8 100644
--- a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
+++ b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
@@ -17,104 +17,15 @@
#include <drm/drm_device.h>
#include <drm/drm_drv.h>
#include <drm/drm_fourcc.h>
+#include <drm/drm_framebuffer.h>
#include <drm/drm_print.h>
#include <drm/drm_rect.h>
-#include <drm/tinydrm/tinydrm.h>
#include <drm/tinydrm/tinydrm-helpers.h>
-#include <uapi/drm/drm.h>
static unsigned int spi_max;
module_param(spi_max, uint, 0400);
MODULE_PARM_DESC(spi_max, "Set a lower SPI max transfer size");
-/**
- * tinydrm_merge_clips - Merge clip rectangles
- * @dst: Destination clip rectangle
- * @src: Source clip rectangle(s)
- * @num_clips: Number of @src clip rectangles
- * @flags: Dirty fb ioctl flags
- * @max_width: Maximum width of @dst
- * @max_height: Maximum height of @dst
- *
- * This function merges @src clip rectangle(s) into @dst. If @src is NULL,
- * @max_width and @min_width is used to set a full @dst clip rectangle.
- *
- * Returns:
- * true if it's a full clip, false otherwise
- */
-bool tinydrm_merge_clips(struct drm_rect *dst,
- struct drm_clip_rect *src, unsigned int num_clips,
- unsigned int flags, u32 max_width, u32 max_height)
-{
- unsigned int i;
-
- if (!src || !num_clips) {
- dst->x1 = 0;
- dst->x2 = max_width;
- dst->y1 = 0;
- dst->y2 = max_height;
- return true;
- }
-
- dst->x1 = ~0;
- dst->y1 = ~0;
- dst->x2 = 0;
- dst->y2 = 0;
-
- for (i = 0; i < num_clips; i++) {
- if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY)
- i++;
- dst->x1 = min_t(int, dst->x1, src[i].x1);
- dst->x2 = max_t(int, dst->x2, src[i].x2);
- dst->y1 = min_t(int, dst->y1, src[i].y1);
- dst->y2 = max_t(int, dst->y2, src[i].y2);
- }
-
- if (dst->x2 > max_width || dst->y2 > max_height ||
- dst->x1 >= dst->x2 || dst->y1 >= dst->y2) {
- DRM_DEBUG_KMS("Illegal clip: x1=%u, x2=%u, y1=%u, y2=%u\n",
- dst->x1, dst->x2, dst->y1, dst->y2);
- dst->x1 = 0;
- dst->y1 = 0;
- dst->x2 = max_width;
- dst->y2 = max_height;
- }
-
- return (dst->x2 - dst->x1) == max_width &&
- (dst->y2 - dst->y1) == max_height;
-}
-EXPORT_SYMBOL(tinydrm_merge_clips);
-
-int tinydrm_fb_dirty(struct drm_framebuffer *fb,
- struct drm_file *file_priv,
- unsigned int flags, unsigned int color,
- struct drm_clip_rect *clips,
- unsigned int num_clips)
-{
- struct tinydrm_device *tdev = fb->dev->dev_private;
- struct drm_plane *plane = &tdev->pipe.plane;
- int ret = 0;
-
- drm_modeset_lock(&plane->mutex, NULL);
-
- /* fbdev can flush even when we're not interested */
- if (plane->state->fb == fb) {
- mutex_lock(&tdev->dirty_lock);
- ret = tdev->fb_dirty(fb, file_priv, flags,
- color, clips, num_clips);
- mutex_unlock(&tdev->dirty_lock);
- }
-
- drm_modeset_unlock(&plane->mutex);
-
- if (ret)
- dev_err_once(fb->dev->dev,
- "Failed to update display %d\n", ret);
-
- return ret;
-}
-EXPORT_SYMBOL(tinydrm_fb_dirty);
-
/**
* tinydrm_memcpy - Copy clip buffer
* @dst: Destination buffer
diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c b/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
index d4576d6e8ce4..323564329535 100644
--- a/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
+++ b/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
@@ -13,7 +13,6 @@
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_modes.h>
#include <drm/drm_print.h>
-#include <drm/drm_vblank.h>
#include <drm/tinydrm/tinydrm.h>
struct tinydrm_connector {
@@ -111,36 +110,6 @@ tinydrm_connector_create(struct drm_device *drm,
return connector;
}
-/**
- * tinydrm_display_pipe_update - Display pipe update helper
- * @pipe: Simple display pipe
- * @old_state: Old plane state
- *
- * This function does a full framebuffer flush if the plane framebuffer
- * has changed. It also handles vblank events. Drivers can use this as their
- * &drm_simple_display_pipe_funcs->update callback.
- */
-void tinydrm_display_pipe_update(struct drm_simple_display_pipe *pipe,
- struct drm_plane_state *old_state)
-{
- struct tinydrm_device *tdev = pipe_to_tinydrm(pipe);
- struct drm_framebuffer *fb = pipe->plane.state->fb;
- struct drm_crtc *crtc = &tdev->pipe.crtc;
-
- if (fb && (fb != old_state->fb)) {
- if (tdev->fb_dirty)
- tdev->fb_dirty(fb, NULL, 0, 0, NULL, 0);
- }
-
- if (crtc->state->event) {
- spin_lock_irq(&crtc->dev->event_lock);
- drm_crtc_send_vblank_event(crtc, crtc->state->event);
- spin_unlock_irq(&crtc->dev->event_lock);
- crtc->state->event = NULL;
- }
-}
-EXPORT_SYMBOL(tinydrm_display_pipe_update);
-
static int tinydrm_rotate_mode(struct drm_display_mode *mode,
unsigned int rotation)
{
diff --git a/drivers/gpu/drm/tinydrm/hx8357d.c b/drivers/gpu/drm/tinydrm/hx8357d.c
index 3ae11aa4b73b..8bbd0beafc6a 100644
--- a/drivers/gpu/drm/tinydrm/hx8357d.c
+++ b/drivers/gpu/drm/tinydrm/hx8357d.c
@@ -176,7 +176,7 @@ static void yx240qv29_enable(struct drm_simple_display_pipe *pipe,
static const struct drm_simple_display_pipe_funcs hx8357d_pipe_funcs = {
.enable = yx240qv29_enable,
.disable = mipi_dbi_pipe_disable,
- .update = tinydrm_display_pipe_update,
+ .update = mipi_dbi_pipe_update,
.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
};
diff --git a/drivers/gpu/drm/tinydrm/ili9225.c b/drivers/gpu/drm/tinydrm/ili9225.c
index ad644069089f..43a3b68d90a2 100644
--- a/drivers/gpu/drm/tinydrm/ili9225.c
+++ b/drivers/gpu/drm/tinydrm/ili9225.c
@@ -20,12 +20,14 @@
#include <linux/spi/spi.h>
#include <video/mipi_display.h>
+#include <drm/drm_damage_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_rect.h>
+#include <drm/drm_vblank.h>
#include <drm/tinydrm/mipi-dbi.h>
#include <drm/tinydrm/tinydrm-helpers.h>
@@ -76,17 +78,14 @@ static inline int ili9225_command(struct mipi_dbi *mipi, u8 cmd, u16 data)
return mipi_dbi_command_buf(mipi, cmd, par, 2);
}
-static int ili9225_fb_dirty(struct drm_framebuffer *fb,
- struct drm_file *file_priv, unsigned int flags,
- unsigned int color, struct drm_clip_rect *clips,
- unsigned int num_clips)
+static void ili9225_fb_dirty(struct drm_framebuffer *fb, struct drm_rect *rect)
{
struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
struct tinydrm_device *tdev = fb->dev->dev_private;
struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
+ unsigned int height = rect->y2 - rect->y1;
+ unsigned int width = rect->x2 - rect->x1;
bool swap = mipi->swap_bytes;
- struct drm_rect clip;
- struct drm_rect *rect = &clip;
u16 x_start, y_start;
u16 x1, x2, y1, y2;
int ret = 0;
@@ -94,10 +93,9 @@ static int ili9225_fb_dirty(struct drm_framebuffer *fb,
void *tr;
if (!mipi->enabled)
- return 0;
+ return;
- full = tinydrm_merge_clips(&clip, clips, num_clips, flags,
- fb->width, fb->height);
+ full = width == fb->width && height == fb->height;
DRM_DEBUG_KMS("Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect));
@@ -106,7 +104,7 @@ static int ili9225_fb_dirty(struct drm_framebuffer *fb,
tr = mipi->tx_buf;
ret = mipi_dbi_buf_copy(mipi->tx_buf, fb, rect, swap);
if (ret)
- return ret;
+ goto err_msg;
} else {
tr = cma_obj->vaddr;
}
@@ -155,16 +153,29 @@ static int ili9225_fb_dirty(struct drm_framebuffer *fb,
ili9225_command(mipi, ILI9225_RAM_ADDRESS_SET_2, y_start);
ret = mipi_dbi_command_buf(mipi, ILI9225_WRITE_DATA_TO_GRAM, tr,
- (rect->x2 - rect->x1) * (rect->y2 - rect->y1) * 2);
-
- return ret;
+ width * height * 2);
+err_msg:
+ if (ret)
+ dev_err_once(fb->dev->dev, "Failed to update display %d\n", ret);
}
-static const struct drm_framebuffer_funcs ili9225_fb_funcs = {
- .destroy = drm_gem_fb_destroy,
- .create_handle = drm_gem_fb_create_handle,
- .dirty = tinydrm_fb_dirty,
-};
+static void ili9225_pipe_update(struct drm_simple_display_pipe *pipe,
+ struct drm_plane_state *old_state)
+{
+ struct drm_plane_state *state = pipe->plane.state;
+ struct drm_crtc *crtc = &pipe->crtc;
+ struct drm_rect rect;
+
+ if (drm_atomic_helper_damage_merged(old_state, state, &rect))
+ ili9225_fb_dirty(state->fb, &rect);
+
+ if (crtc->state->event) {
+ spin_lock_irq(&crtc->dev->event_lock);
+ drm_crtc_send_vblank_event(crtc, crtc->state->event);
+ spin_unlock_irq(&crtc->dev->event_lock);
+ crtc->state->event = NULL;
+ }
+}
static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc_state *crtc_state,
@@ -172,7 +183,14 @@ static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
{
struct tinydrm_device *tdev = pipe_to_tinydrm(pipe);
struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
+ struct drm_framebuffer *fb = plane_state->fb;
struct device *dev = tdev->drm->dev;
+ struct drm_rect rect = {
+ .x1 = 0,
+ .x2 = fb->width,
+ .y1 = 0,
+ .y2 = fb->height,
+ };
int ret;
u8 am_id;
@@ -260,7 +278,8 @@ static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
ili9225_command(mipi, ILI9225_DISPLAY_CONTROL_1, 0x1017);
- mipi_dbi_enable_flush(mipi, crtc_state, plane_state);
+ mipi->enabled = true;
+ ili9225_fb_dirty(fb, &rect);
}
static void ili9225_pipe_disable(struct drm_simple_display_pipe *pipe)
@@ -305,59 +324,10 @@ static int ili9225_dbi_command(struct mipi_dbi *mipi, u8 cmd, u8 *par,
return tinydrm_spi_transfer(spi, speed_hz, NULL, bpw, par, num);
}
-static const u32 ili9225_formats[] = {
- DRM_FORMAT_RGB565,
- DRM_FORMAT_XRGB8888,
-};
-
-static int ili9225_init(struct device *dev, struct mipi_dbi *mipi,
- const struct drm_simple_display_pipe_funcs *pipe_funcs,
- struct drm_driver *driver,
- const struct drm_display_mode *mode,
- unsigned int rotation)
-{
- size_t bufsize = mode->vdisplay * mode->hdisplay * sizeof(u16);
- struct tinydrm_device *tdev = &mipi->tinydrm;
- int ret;
-
- if (!mipi->command)
- return -EINVAL;
-
- mutex_init(&mipi->cmdlock);
-
- mipi->tx_buf = devm_kmalloc(dev, bufsize, GFP_KERNEL);
- if (!mipi->tx_buf)
- return -ENOMEM;
-
- ret = devm_tinydrm_init(dev, tdev, &ili9225_fb_funcs, driver);
- if (ret)
- return ret;
-
- tdev->fb_dirty = ili9225_fb_dirty;
-
- ret = tinydrm_display_pipe_init(tdev, pipe_funcs,
- DRM_MODE_CONNECTOR_VIRTUAL,
- ili9225_formats,
- ARRAY_SIZE(ili9225_formats), mode,
- rotation);
- if (ret)
- return ret;
-
- tdev->drm->mode_config.preferred_depth = 16;
- mipi->rotation = rotation;
-
- drm_mode_config_reset(tdev->drm);
-
- DRM_DEBUG_KMS("preferred_depth=%u, rotation = %u\n",
- tdev->drm->mode_config.preferred_depth, rotation);
-
- return 0;
-}
-
static const struct drm_simple_display_pipe_funcs ili9225_pipe_funcs = {
.enable = ili9225_pipe_enable,
.disable = ili9225_pipe_disable,
- .update = tinydrm_display_pipe_update,
+ .update = ili9225_pipe_update,
.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
};
@@ -424,8 +394,8 @@ static int ili9225_probe(struct spi_device *spi)
/* override the command function set in mipi_dbi_spi_init() */
mipi->command = ili9225_dbi_command;
- ret = ili9225_init(&spi->dev, mipi, &ili9225_pipe_funcs,
- &ili9225_driver, &ili9225_mode, rotation);
+ ret = mipi_dbi_init(&spi->dev, mipi, &ili9225_pipe_funcs,
+ &ili9225_driver, &ili9225_mode, rotation);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/tinydrm/ili9341.c b/drivers/gpu/drm/tinydrm/ili9341.c
index bcdf10906ade..713bb2dd7e04 100644
--- a/drivers/gpu/drm/tinydrm/ili9341.c
+++ b/drivers/gpu/drm/tinydrm/ili9341.c
@@ -132,7 +132,7 @@ static void yx240qv29_enable(struct drm_simple_display_pipe *pipe,
static const struct drm_simple_display_pipe_funcs ili9341_pipe_funcs = {
.enable = yx240qv29_enable,
.disable = mipi_dbi_pipe_disable,
- .update = tinydrm_display_pipe_update,
+ .update = mipi_dbi_pipe_update,
.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
};
diff --git a/drivers/gpu/drm/tinydrm/mi0283qt.c b/drivers/gpu/drm/tinydrm/mi0283qt.c
index 97805ca37a04..82a92ec9ae3c 100644
--- a/drivers/gpu/drm/tinydrm/mi0283qt.c
+++ b/drivers/gpu/drm/tinydrm/mi0283qt.c
@@ -140,7 +140,7 @@ static void mi0283qt_enable(struct drm_simple_display_pipe *pipe,
static const struct drm_simple_display_pipe_funcs mi0283qt_pipe_funcs = {
.enable = mi0283qt_enable,
.disable = mipi_dbi_pipe_disable,
- .update = tinydrm_display_pipe_update,
+ .update = mipi_dbi_pipe_update,
.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
};
diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c
index 1e7e8cfc99f0..918f77c7de34 100644
--- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
+++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
@@ -17,15 +17,16 @@
#include <linux/regulator/consumer.h>
#include <linux/spi/spi.h>
+#include <drm/drm_damage_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_vblank.h>
#include <drm/drm_rect.h>
#include <drm/tinydrm/mipi-dbi.h>
#include <drm/tinydrm/tinydrm-helpers.h>
-#include <uapi/drm/drm.h>
#include <video/mipi_display.h>
#define MIPI_DBI_MAX_SPI_READ_SPEED 2000000 /* 2MHz */
@@ -212,27 +213,22 @@ int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
}
EXPORT_SYMBOL(mipi_dbi_buf_copy);
-static int mipi_dbi_fb_dirty(struct drm_framebuffer *fb,
- struct drm_file *file_priv,
- unsigned int flags, unsigned int color,
- struct drm_clip_rect *clips,
- unsigned int num_clips)
+static void mipi_dbi_fb_dirty(struct drm_framebuffer *fb, struct drm_rect *rect)
{
struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
struct tinydrm_device *tdev = fb->dev->dev_private;
struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
+ unsigned int height = rect->y2 - rect->y1;
+ unsigned int width = rect->x2 - rect->x1;
bool swap = mipi->swap_bytes;
- struct drm_rect clip;
- struct drm_rect *rect = &clip;
int ret = 0;
bool full;
void *tr;
if (!mipi->enabled)
- return 0;
+ return;
- full = tinydrm_merge_clips(&clip, clips, num_clips, flags,
- fb->width, fb->height);
+ full = width == fb->width && height == fb->height;
DRM_DEBUG_KMS("Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect));
@@ -241,7 +237,7 @@ static int mipi_dbi_fb_dirty(struct drm_framebuffer *fb,
tr = mipi->tx_buf;
ret = mipi_dbi_buf_copy(mipi->tx_buf, fb, rect, swap);
if (ret)
- return ret;
+ goto err_msg;
} else {
tr = cma_obj->vaddr;
}
@@ -254,16 +250,38 @@ static int mipi_dbi_fb_dirty(struct drm_framebuffer *fb,
((rect->y2 - 1) >> 8) & 0xff, (rect->y2 - 1) & 0xff);
ret = mipi_dbi_command_buf(mipi, MIPI_DCS_WRITE_MEMORY_START, tr,
- (rect->x2 - rect->x1) * (rect->y2 - rect->y1) * 2);
-
- return ret;
+ width * height * 2);
+err_msg:
+ if (ret)
+ dev_err_once(fb->dev->dev, "Failed to update display %d\n", ret);
}
-static const struct drm_framebuffer_funcs mipi_dbi_fb_funcs = {
- .destroy = drm_gem_fb_destroy,
- .create_handle = drm_gem_fb_create_handle,
- .dirty = tinydrm_fb_dirty,
-};
+/**
+ * mipi_dbi_pipe_update - Display pipe update helper
+ * @pipe: Simple display pipe
+ * @old_state: Old plane state
+ *
+ * This function handles framebuffer flushing and vblank events. Drivers can use
+ * this as their &drm_simple_display_pipe_funcs->update callback.
+ */
+void mipi_dbi_pipe_update(struct drm_simple_display_pipe *pipe,
+ struct drm_plane_state *old_state)
+{
+ struct drm_plane_state *state = pipe->plane.state;
+ struct drm_crtc *crtc = &pipe->crtc;
+ struct drm_rect rect;
+
+ if (drm_atomic_helper_damage_merged(old_state, state, &rect))
+ mipi_dbi_fb_dirty(state->fb, &rect);
+
+ if (crtc->state->event) {
+ spin_lock_irq(&crtc->dev->event_lock);
+ drm_crtc_send_vblank_event(crtc, crtc->state->event);
+ spin_unlock_irq(&crtc->dev->event_lock);
+ crtc->state->event = NULL;
+ }
+}
+EXPORT_SYMBOL(mipi_dbi_pipe_update);
/**
* mipi_dbi_enable_flush - MIPI DBI enable helper
@@ -274,18 +292,25 @@ static const struct drm_framebuffer_funcs mipi_dbi_fb_funcs = {
* This function sets &mipi_dbi->enabled, flushes the whole framebuffer and
* enables the backlight. Drivers can use this in their
* &drm_simple_display_pipe_funcs->enable callback.
+ *
+ * Note: Drivers which don't use mipi_dbi_pipe_update() because they have custom
+ * framebuffer flushing, can't use this function since they both use the same
+ * flushing code.
*/
void mipi_dbi_enable_flush(struct mipi_dbi *mipi,
struct drm_crtc_state *crtc_state,
struct drm_plane_state *plane_state)
{
- struct tinydrm_device *tdev = &mipi->tinydrm;
struct drm_framebuffer *fb = plane_state->fb;
+ struct drm_rect rect = {
+ .x1 = 0,
+ .x2 = fb->width,
+ .y1 = 0,
+ .y2 = fb->height,
+ };
mipi->enabled = true;
- if (fb)
- tdev->fb_dirty(fb, NULL, 0, 0, NULL, 0);
-
+ mipi_dbi_fb_dirty(fb, &rect);
backlight_enable(mipi->backlight);
}
EXPORT_SYMBOL(mipi_dbi_enable_flush);
@@ -377,12 +402,10 @@ int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
if (!mipi->tx_buf)
return -ENOMEM;
- ret = devm_tinydrm_init(dev, tdev, &mipi_dbi_fb_funcs, driver);
+ ret = devm_tinydrm_init(dev, tdev, driver);
if (ret)
return ret;
- tdev->fb_dirty = mipi_dbi_fb_dirty;
-
/* TODO: Maybe add DRM_MODE_CONNECTOR_SPI */
ret = tinydrm_display_pipe_init(tdev, pipe_funcs,
DRM_MODE_CONNECTOR_VIRTUAL,
@@ -392,6 +415,8 @@ int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
if (ret)
return ret;
+ drm_plane_enable_fb_damage_clips(&tdev->pipe.plane);
+
tdev->drm->mode_config.preferred_depth = 16;
mipi->rotation = rotation;
diff --git a/drivers/gpu/drm/tinydrm/repaper.c b/drivers/gpu/drm/tinydrm/repaper.c
index 238515de449e..b037c6540cf3 100644
--- a/drivers/gpu/drm/tinydrm/repaper.c
+++ b/drivers/gpu/drm/tinydrm/repaper.c
@@ -26,11 +26,13 @@
#include <linux/spi/spi.h>
#include <linux/thermal.h>
+#include <drm/drm_damage_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_rect.h>
+#include <drm/drm_vblank.h>
#include <drm/tinydrm/tinydrm.h>
#include <drm/tinydrm/tinydrm-helpers.h>
@@ -523,11 +525,7 @@ static void repaper_gray8_to_mono_reversed(u8 *buf, u32 width, u32 height)
}
}
-static int repaper_fb_dirty(struct drm_framebuffer *fb,
- struct drm_file *file_priv,
- unsigned int flags, unsigned int color,
- struct drm_clip_rect *clips,
- unsigned int num_clips)
+static int repaper_fb_dirty(struct drm_framebuffer *fb)
{
struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
struct dma_buf_attachment *import_attach = cma_obj->base.import_attach;
@@ -626,12 +624,6 @@ static int repaper_fb_dirty(struct drm_framebuffer *fb,
return ret;
}
-static const struct drm_framebuffer_funcs repaper_fb_funcs = {
- .destroy = drm_gem_fb_destroy,
- .create_handle = drm_gem_fb_create_handle,
- .dirty = tinydrm_fb_dirty,
-};
-
static void power_off(struct repaper_epd *epd)
{
/* Turn off power and all signals */
@@ -795,9 +787,7 @@ static void repaper_pipe_disable(struct drm_simple_display_pipe *pipe)
DRM_DEBUG_DRIVER("\n");
- mutex_lock(&tdev->dirty_lock);
epd->enabled = false;
- mutex_unlock(&tdev->dirty_lock);
/* Nothing frame */
for (line = 0; line < epd->height; line++)
@@ -840,10 +830,28 @@ static void repaper_pipe_disable(struct drm_simple_display_pipe *pipe)
power_off(epd);
}
+static void repaper_pipe_update(struct drm_simple_display_pipe *pipe,
+ struct drm_plane_state *old_state)
+{
+ struct drm_plane_state *state = pipe->plane.state;
+ struct drm_crtc *crtc = &pipe->crtc;
+ struct drm_rect rect;
+
+ if (drm_atomic_helper_damage_merged(old_state, state, &rect))
+ repaper_fb_dirty(state->fb);
+
+ if (crtc->state->event) {
+ spin_lock_irq(&crtc->dev->event_lock);
+ drm_crtc_send_vblank_event(crtc, crtc->state->event);
+ spin_unlock_irq(&crtc->dev->event_lock);
+ crtc->state->event = NULL;
+ }
+}
+
static const struct drm_simple_display_pipe_funcs repaper_pipe_funcs = {
.enable = repaper_pipe_enable,
.disable = repaper_pipe_disable,
- .update = tinydrm_display_pipe_update,
+ .update = repaper_pipe_update,
.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
};
@@ -1057,12 +1065,10 @@ static int repaper_probe(struct spi_device *spi)
tdev = &epd->tinydrm;
- ret = devm_tinydrm_init(dev, tdev, &repaper_fb_funcs, &repaper_driver);
+ ret = devm_tinydrm_init(dev, tdev, &repaper_driver);
if (ret)
return ret;
- tdev->fb_dirty = repaper_fb_dirty;
-
ret = tinydrm_display_pipe_init(tdev, &repaper_pipe_funcs,
DRM_MODE_CONNECTOR_VIRTUAL,
repaper_formats,
diff --git a/drivers/gpu/drm/tinydrm/st7586.c b/drivers/gpu/drm/tinydrm/st7586.c
index a52bc3b02606..01a8077954b3 100644
--- a/drivers/gpu/drm/tinydrm/st7586.c
+++ b/drivers/gpu/drm/tinydrm/st7586.c
@@ -17,11 +17,13 @@
#include <linux/spi/spi.h>
#include <video/mipi_display.h>
+#include <drm/drm_damage_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_rect.h>
+#include <drm/drm_vblank.h>
#include <drm/tinydrm/mipi-dbi.h>
#include <drm/tinydrm/tinydrm-helpers.h>
@@ -112,23 +114,15 @@ static int st7586_buf_copy(void *dst, struct drm_framebuffer *fb,
return ret;
}
-static int st7586_fb_dirty(struct drm_framebuffer *fb,
- struct drm_file *file_priv, unsigned int flags,
- unsigned int color, struct drm_clip_rect *clips,
- unsigned int num_clips)
+static void st7586_fb_dirty(struct drm_framebuffer *fb, struct drm_rect *rect)
{
struct tinydrm_device *tdev = fb->dev->dev_private;
struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
- struct drm_rect clip;
- struct drm_rect *rect = &clip;
int start, end;
int ret = 0;
if (!mipi->enabled)
- return 0;
-
- tinydrm_merge_clips(&clip, clips, num_clips, flags, fb->width,
- fb->height);
+ return;
/* 3 pixels per byte, so grow clip to nearest multiple of 3 */
rect->x1 = rounddown(rect->x1, 3);
@@ -138,7 +132,7 @@ static int st7586_fb_dirty(struct drm_framebuffer *fb,
ret = st7586_buf_copy(mipi->tx_buf, fb, rect);
if (ret)
- return ret;
+ goto err_msg;
/* Pixels are packed 3 per byte */
start = rect->x1 / 3;
@@ -154,15 +148,28 @@ static int st7586_fb_dirty(struct drm_framebuffer *fb,
ret = mipi_dbi_command_buf(mipi, MIPI_DCS_WRITE_MEMORY_START,
(u8 *)mipi->tx_buf,
(end - start) * (rect->y2 - rect->y1));
-
- return ret;
+err_msg:
+ if (ret)
+ dev_err_once(fb->dev->dev, "Failed to update display %d\n", ret);
}
-static const struct drm_framebuffer_funcs st7586_fb_funcs = {
- .destroy = drm_gem_fb_destroy,
- .create_handle = drm_gem_fb_create_handle,
- .dirty = tinydrm_fb_dirty,
-};
+static void st7586_pipe_update(struct drm_simple_display_pipe *pipe,
+ struct drm_plane_state *old_state)
+{
+ struct drm_plane_state *state = pipe->plane.state;
+ struct drm_crtc *crtc = &pipe->crtc;
+ struct drm_rect rect;
+
+ if (drm_atomic_helper_damage_merged(old_state, state, &rect))
+ st7586_fb_dirty(state->fb, &rect);
+
+ if (crtc->state->event) {
+ spin_lock_irq(&crtc->dev->event_lock);
+ drm_crtc_send_vblank_event(crtc, crtc->state->event);
+ spin_unlock_irq(&crtc->dev->event_lock);
+ crtc->state->event = NULL;
+ }
+}
static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc_state *crtc_state,
@@ -170,6 +177,13 @@ static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
{
struct tinydrm_device *tdev = pipe_to_tinydrm(pipe);
struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
+ struct drm_framebuffer *fb = plane_state->fb;
+ struct drm_rect rect = {
+ .x1 = 0,
+ .x2 = fb->width,
+ .y1 = 0,
+ .y2 = fb->height,
+ };
int ret;
u8 addr_mode;
@@ -226,9 +240,10 @@ static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
msleep(100);
- mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_ON);
+ mipi->enabled = true;
+ st7586_fb_dirty(fb, &rect);
- mipi_dbi_enable_flush(mipi, crtc_state, plane_state);
+ mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_ON);
}
static void st7586_pipe_disable(struct drm_simple_display_pipe *pipe)
@@ -264,12 +279,10 @@ static int st7586_init(struct device *dev, struct mipi_dbi *mipi,
if (!mipi->tx_buf)
return -ENOMEM;
- ret = devm_tinydrm_init(dev, tdev, &st7586_fb_funcs, driver);
+ ret = devm_tinydrm_init(dev, tdev, driver);
if (ret)
return ret;
- tdev->fb_dirty = st7586_fb_dirty;
-
ret = tinydrm_display_pipe_init(tdev, pipe_funcs,
DRM_MODE_CONNECTOR_VIRTUAL,
st7586_formats,
@@ -278,6 +291,8 @@ static int st7586_init(struct device *dev, struct mipi_dbi *mipi,
if (ret)
return ret;
+ drm_plane_enable_fb_damage_clips(&tdev->pipe.plane);
+
tdev->drm->mode_config.preferred_depth = 32;
mipi->rotation = rotation;
@@ -292,7 +307,7 @@ static int st7586_init(struct device *dev, struct mipi_dbi *mipi,
static const struct drm_simple_display_pipe_funcs st7586_pipe_funcs = {
.enable = st7586_pipe_enable,
.disable = st7586_pipe_disable,
- .update = tinydrm_display_pipe_update,
+ .update = st7586_pipe_update,
.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
};
diff --git a/drivers/gpu/drm/tinydrm/st7735r.c b/drivers/gpu/drm/tinydrm/st7735r.c
index 9bc93d5a0401..3bab9a9569a6 100644
--- a/drivers/gpu/drm/tinydrm/st7735r.c
+++ b/drivers/gpu/drm/tinydrm/st7735r.c
@@ -106,7 +106,7 @@ static void jd_t18003_t01_pipe_enable(struct drm_simple_display_pipe *pipe,
static const struct drm_simple_display_pipe_funcs jd_t18003_t01_pipe_funcs = {
.enable = jd_t18003_t01_pipe_enable,
.disable = mipi_dbi_pipe_disable,
- .update = tinydrm_display_pipe_update,
+ .update = mipi_dbi_pipe_update,
.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
};
diff --git a/include/drm/tinydrm/mipi-dbi.h b/include/drm/tinydrm/mipi-dbi.h
index b52f32897f23..f4ec2834bc22 100644
--- a/include/drm/tinydrm/mipi-dbi.h
+++ b/include/drm/tinydrm/mipi-dbi.h
@@ -68,6 +68,8 @@ int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
const struct drm_simple_display_pipe_funcs *pipe_funcs,
struct drm_driver *driver,
const struct drm_display_mode *mode, unsigned int rotation);
+void mipi_dbi_pipe_update(struct drm_simple_display_pipe *pipe,
+ struct drm_plane_state *old_state);
void mipi_dbi_enable_flush(struct mipi_dbi *mipi,
struct drm_crtc_state *crtc_state,
struct drm_plane_state *plan_state);
diff --git a/include/drm/tinydrm/tinydrm-helpers.h b/include/drm/tinydrm/tinydrm-helpers.h
index 8edb75df4e31..f0d598789e4d 100644
--- a/include/drm/tinydrm/tinydrm-helpers.h
+++ b/include/drm/tinydrm/tinydrm-helpers.h
@@ -11,8 +11,7 @@
#define __LINUX_TINYDRM_HELPERS_H
struct backlight_device;
-struct tinydrm_device;
-struct drm_clip_rect;
+struct drm_framebuffer;
struct drm_rect;
struct spi_transfer;
struct spi_message;
@@ -34,14 +33,6 @@ static inline bool tinydrm_machine_little_endian(void)
#endif
}
-bool tinydrm_merge_clips(struct drm_rect *dst,
- struct drm_clip_rect *src, unsigned int num_clips,
- unsigned int flags, u32 max_width, u32 max_height);
-int tinydrm_fb_dirty(struct drm_framebuffer *fb,
- struct drm_file *file_priv,
- unsigned int flags, unsigned int color,
- struct drm_clip_rect *clips,
- unsigned int num_clips);
void tinydrm_memcpy(void *dst, void *vaddr, struct drm_framebuffer *fb,
struct drm_rect *clip);
void tinydrm_swab16(u16 *dst, void *vaddr, struct drm_framebuffer *fb,
diff --git a/include/drm/tinydrm/tinydrm.h b/include/drm/tinydrm/tinydrm.h
index 448aa5ea4722..5621688edcc0 100644
--- a/include/drm/tinydrm/tinydrm.h
+++ b/include/drm/tinydrm/tinydrm.h
@@ -10,14 +10,9 @@
#ifndef __LINUX_TINYDRM_H
#define __LINUX_TINYDRM_H
-#include <linux/mutex.h>
#include <drm/drm_simple_kms_helper.h>
-struct drm_clip_rect;
struct drm_driver;
-struct drm_file;
-struct drm_framebuffer;
-struct drm_framebuffer_funcs;
/**
* struct tinydrm_device - tinydrm device
@@ -32,24 +27,6 @@ struct tinydrm_device {
* @pipe: Display pipe structure
*/
struct drm_simple_display_pipe pipe;
-
- /**
- * @dirty_lock: Serializes framebuffer flushing
- */
- struct mutex dirty_lock;
-
- /**
- * @fb_funcs: Framebuffer functions used when creating framebuffers
- */
- const struct drm_framebuffer_funcs *fb_funcs;
-
- /**
- * @fb_dirty: Framebuffer dirty callback
- */
- int (*fb_dirty)(struct drm_framebuffer *framebuffer,
- struct drm_file *file_priv, unsigned flags,
- unsigned color, struct drm_clip_rect *clips,
- unsigned num_clips);
};
static inline struct tinydrm_device *
@@ -82,13 +59,10 @@ pipe_to_tinydrm(struct drm_simple_display_pipe *pipe)
.clock = 1 /* pass validation */
int devm_tinydrm_init(struct device *parent, struct tinydrm_device *tdev,
- const struct drm_framebuffer_funcs *fb_funcs,
struct drm_driver *driver);
int devm_tinydrm_register(struct tinydrm_device *tdev);
void tinydrm_shutdown(struct tinydrm_device *tdev);
-void tinydrm_display_pipe_update(struct drm_simple_display_pipe *pipe,
- struct drm_plane_state *old_state);
int
tinydrm_display_pipe_init(struct tinydrm_device *tdev,
const struct drm_simple_display_pipe_funcs *funcs,
--
2.20.1
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