diff options
Diffstat (limited to 'drivers/gpu/drm/tilcdc')
| -rw-r--r-- | drivers/gpu/drm/tilcdc/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 51 | ||||
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_drv.c | 11 | ||||
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_slave.c | 28 | ||||
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_tfp410.c | 1 |
5 files changed, 56 insertions, 36 deletions
diff --git a/drivers/gpu/drm/tilcdc/Kconfig b/drivers/gpu/drm/tilcdc/Kconfig index 7a4d1010690..7c3ef79fcb3 100644 --- a/drivers/gpu/drm/tilcdc/Kconfig +++ b/drivers/gpu/drm/tilcdc/Kconfig @@ -2,6 +2,7 @@ config DRM_TILCDC tristate "DRM Support for TI LCDC Display Controller" depends on DRM && OF && ARM select DRM_KMS_HELPER + select DRM_KMS_FB_HELPER select DRM_KMS_CMA_HELPER select DRM_GEM_CMA_HELPER select VIDEOMODE_HELPERS diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index 7418dcd986d..d642d4a0213 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -15,7 +15,7 @@ * this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <linux/kfifo.h> +#include "drm_flip_work.h" #include "tilcdc_drv.h" #include "tilcdc_regs.h" @@ -35,21 +35,18 @@ struct tilcdc_crtc { struct drm_framebuffer *scanout[2]; /* for deferred fb unref's: */ - DECLARE_KFIFO_PTR(unref_fifo, struct drm_framebuffer *); - struct work_struct work; + struct drm_flip_work unref_work; }; #define to_tilcdc_crtc(x) container_of(x, struct tilcdc_crtc, base) -static void unref_worker(struct work_struct *work) +static void unref_worker(struct drm_flip_work *work, void *val) { struct tilcdc_crtc *tilcdc_crtc = - container_of(work, struct tilcdc_crtc, work); + container_of(work, struct tilcdc_crtc, unref_work); struct drm_device *dev = tilcdc_crtc->base.dev; - struct drm_framebuffer *fb; mutex_lock(&dev->mode_config.mutex); - while (kfifo_get(&tilcdc_crtc->unref_fifo, &fb)) - drm_framebuffer_unreference(fb); + drm_framebuffer_unreference(val); mutex_unlock(&dev->mode_config.mutex); } @@ -68,21 +65,16 @@ static void set_scanout(struct drm_crtc *crtc, int n) }; struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); struct drm_device *dev = crtc->dev; + struct tilcdc_drm_private *priv = dev->dev_private; pm_runtime_get_sync(dev->dev); tilcdc_write(dev, base_reg[n], tilcdc_crtc->start); tilcdc_write(dev, ceil_reg[n], tilcdc_crtc->end); if (tilcdc_crtc->scanout[n]) { - if (kfifo_put(&tilcdc_crtc->unref_fifo, - (const struct drm_framebuffer **)&tilcdc_crtc->scanout[n])) { - struct tilcdc_drm_private *priv = dev->dev_private; - queue_work(priv->wq, &tilcdc_crtc->work); - } else { - dev_err(dev->dev, "unref fifo full!\n"); - drm_framebuffer_unreference(tilcdc_crtc->scanout[n]); - } + drm_flip_work_queue(&tilcdc_crtc->unref_work, tilcdc_crtc->scanout[n]); + drm_flip_work_commit(&tilcdc_crtc->unref_work, priv->wq); } - tilcdc_crtc->scanout[n] = crtc->fb; + tilcdc_crtc->scanout[n] = crtc->primary->fb; drm_framebuffer_reference(tilcdc_crtc->scanout[n]); tilcdc_crtc->dirty &= ~stat[n]; pm_runtime_put_sync(dev->dev); @@ -92,7 +84,7 @@ static void update_scanout(struct drm_crtc *crtc) { struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); struct drm_device *dev = crtc->dev; - struct drm_framebuffer *fb = crtc->fb; + struct drm_framebuffer *fb = crtc->primary->fb; struct drm_gem_cma_object *gem; unsigned int depth, bpp; @@ -149,14 +141,15 @@ static void tilcdc_crtc_destroy(struct drm_crtc *crtc) WARN_ON(tilcdc_crtc->dpms == DRM_MODE_DPMS_ON); drm_crtc_cleanup(crtc); - WARN_ON(!kfifo_is_empty(&tilcdc_crtc->unref_fifo)); - kfifo_free(&tilcdc_crtc->unref_fifo); + drm_flip_work_cleanup(&tilcdc_crtc->unref_work); + kfree(tilcdc_crtc); } static int tilcdc_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, - struct drm_pending_vblank_event *event) + struct drm_pending_vblank_event *event, + uint32_t page_flip_flags) { struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); struct drm_device *dev = crtc->dev; @@ -166,7 +159,7 @@ static int tilcdc_crtc_page_flip(struct drm_crtc *crtc, return -EBUSY; } - crtc->fb = fb; + crtc->primary->fb = fb; tilcdc_crtc->event = event; update_scanout(crtc); @@ -346,7 +339,7 @@ static int tilcdc_crtc_mode_set(struct drm_crtc *crtc, if (priv->rev == 2) { unsigned int depth, bpp; - drm_fb_get_bpp_depth(crtc->fb->pixel_format, &depth, &bpp); + drm_fb_get_bpp_depth(crtc->primary->fb->pixel_format, &depth, &bpp); switch (bpp) { case 16: break; @@ -379,7 +372,12 @@ static int tilcdc_crtc_mode_set(struct drm_crtc *crtc, else tilcdc_clear(dev, LCDC_RASTER_TIMING_2_REG, LCDC_SYNC_EDGE); - if (mode->flags & DRM_MODE_FLAG_NHSYNC) + /* + * use value from adjusted_mode here as this might have been + * changed as part of the fixup for slave encoders to solve the + * issue where tilcdc timings are not VESA compliant + */ + if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) tilcdc_set(dev, LCDC_RASTER_TIMING_2_REG, LCDC_INVERT_HSYNC); else tilcdc_clear(dev, LCDC_RASTER_TIMING_2_REG, LCDC_INVERT_HSYNC); @@ -666,14 +664,13 @@ struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev) tilcdc_crtc->dpms = DRM_MODE_DPMS_OFF; init_waitqueue_head(&tilcdc_crtc->frame_done_wq); - ret = kfifo_alloc(&tilcdc_crtc->unref_fifo, 16, GFP_KERNEL); + ret = drm_flip_work_init(&tilcdc_crtc->unref_work, 16, + "unref", unref_worker); if (ret) { dev_err(dev->dev, "could not allocate unref FIFO\n"); goto fail; } - INIT_WORK(&tilcdc_crtc->work, unref_worker); - ret = drm_crtc_init(dev, crtc, &tilcdc_crtc_funcs); if (ret < 0) goto fail; diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index 40b71da5a21..b20b69488dc 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -268,7 +268,7 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) } pm_runtime_get_sync(dev->dev); - ret = drm_irq_install(dev); + ret = drm_irq_install(dev, platform_get_irq(dev->platformdev, 0)); pm_runtime_put_sync(dev->dev); if (ret < 0) { dev_err(dev->dev, "failed to install IRQ handler\n"); @@ -311,7 +311,7 @@ static void tilcdc_lastclose(struct drm_device *dev) drm_fbdev_cma_restore_mode(priv->fbdev); } -static irqreturn_t tilcdc_irq(DRM_IRQ_ARGS) +static irqreturn_t tilcdc_irq(int irq, void *arg) { struct drm_device *dev = arg; struct tilcdc_drm_private *priv = dev->dev_private; @@ -444,7 +444,7 @@ static int tilcdc_mm_show(struct seq_file *m, void *arg) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; - return drm_mm_dump_table(m, dev->mm_private); + return drm_mm_dump_table(m, &dev->vma_offset_manager->vm_addr_space_mm); } static struct drm_info_list tilcdc_debugfs_list[] = { @@ -497,7 +497,6 @@ static const struct file_operations fops = { #endif .poll = drm_poll, .read = drm_read, - .fasync = drm_fasync, .llseek = no_llseek, .mmap = drm_gem_cma_mmap, }; @@ -519,7 +518,7 @@ static struct drm_driver tilcdc_driver = { .gem_vm_ops = &drm_gem_cma_vm_ops, .dumb_create = drm_gem_cma_dumb_create, .dumb_map_offset = drm_gem_cma_dumb_map_offset, - .dumb_destroy = drm_gem_cma_dumb_destroy, + .dumb_destroy = drm_gem_dumb_destroy, #ifdef CONFIG_DEBUG_FS .debugfs_init = tilcdc_debugfs_init, .debugfs_cleanup = tilcdc_debugfs_cleanup, @@ -595,7 +594,7 @@ static int tilcdc_pdev_probe(struct platform_device *pdev) static int tilcdc_pdev_remove(struct platform_device *pdev) { - drm_platform_exit(&tilcdc_driver, pdev); + drm_put_dev(platform_get_drvdata(pdev)); return 0; } diff --git a/drivers/gpu/drm/tilcdc/tilcdc_slave.c b/drivers/gpu/drm/tilcdc/tilcdc_slave.c index dfffaf01402..595068ba2d5 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_slave.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_slave.c @@ -16,7 +16,6 @@ */ #include <linux/i2c.h> -#include <linux/of_i2c.h> #include <linux/pinctrl/pinmux.h> #include <linux/pinctrl/consumer.h> #include <drm/drm_encoder_slave.h> @@ -73,13 +72,38 @@ static void slave_encoder_prepare(struct drm_encoder *encoder) tilcdc_crtc_set_panel_info(encoder->crtc, &slave_info); } +static bool slave_encoder_fixup(struct drm_encoder *encoder, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + /* + * tilcdc does not generate VESA-complient sync but aligns + * VS on the second edge of HS instead of first edge. + * We use adjusted_mode, to fixup sync by aligning both rising + * edges and add HSKEW offset to let the slave encoder fix it up. + */ + adjusted_mode->hskew = mode->hsync_end - mode->hsync_start; + adjusted_mode->flags |= DRM_MODE_FLAG_HSKEW; + + if (mode->flags & DRM_MODE_FLAG_NHSYNC) { + adjusted_mode->flags |= DRM_MODE_FLAG_PHSYNC; + adjusted_mode->flags &= ~DRM_MODE_FLAG_NHSYNC; + } else { + adjusted_mode->flags |= DRM_MODE_FLAG_NHSYNC; + adjusted_mode->flags &= ~DRM_MODE_FLAG_PHSYNC; + } + + return drm_i2c_encoder_mode_fixup(encoder, mode, adjusted_mode); +} + + static const struct drm_encoder_funcs slave_encoder_funcs = { .destroy = slave_encoder_destroy, }; static const struct drm_encoder_helper_funcs slave_encoder_helper_funcs = { .dpms = drm_i2c_encoder_dpms, - .mode_fixup = drm_i2c_encoder_mode_fixup, + .mode_fixup = slave_encoder_fixup, .prepare = slave_encoder_prepare, .commit = drm_i2c_encoder_commit, .mode_set = drm_i2c_encoder_mode_set, diff --git a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c index 925c7cddeff..c38b56b268a 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c @@ -16,7 +16,6 @@ */ #include <linux/i2c.h> -#include <linux/of_i2c.h> #include <linux/gpio.h> #include <linux/of_gpio.h> #include <linux/pinctrl/pinmux.h> |