diff options
Diffstat (limited to 'drivers/gpu/drm/arc')
| -rw-r--r-- | drivers/gpu/drm/arc/arcpgu_crtc.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/arc/arcpgu_drv.c | 57 |
2 files changed, 36 insertions, 28 deletions
diff --git a/drivers/gpu/drm/arc/arcpgu_crtc.c b/drivers/gpu/drm/arc/arcpgu_crtc.c index 799416651f2f..16903dc7fe0d 100644 --- a/drivers/gpu/drm/arc/arcpgu_crtc.c +++ b/drivers/gpu/drm/arc/arcpgu_crtc.c @@ -69,12 +69,13 @@ static enum drm_mode_status arc_pgu_crtc_mode_valid(struct drm_crtc *crtc, { struct arcpgu_drm_private *arcpgu = crtc_to_arcpgu_priv(crtc); long rate, clk_rate = mode->clock * 1000; + long diff = clk_rate / 200; /* +-0.5% allowed by HDMI spec */ rate = clk_round_rate(arcpgu->clk, clk_rate); - if (rate != clk_rate) - return MODE_NOCLOCK; + if ((max(rate, clk_rate) - min(rate, clk_rate) < diff) && (rate > 0)) + return MODE_OK; - return MODE_OK; + return MODE_NOCLOCK; } static void arc_pgu_crtc_mode_set_nofb(struct drm_crtc *crtc) diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c index 415b7dae0960..e3c13aa202b8 100644 --- a/drivers/gpu/drm/arc/arcpgu_drv.c +++ b/drivers/gpu/drm/arc/arcpgu_drv.c @@ -48,29 +48,7 @@ static void arcpgu_setup_mode_config(struct drm_device *drm) drm->mode_config.funcs = &arcpgu_drm_modecfg_funcs; } -static int arcpgu_gem_mmap(struct file *filp, struct vm_area_struct *vma) -{ - int ret; - - ret = drm_gem_mmap(filp, vma); - if (ret) - return ret; - - vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags)); - return 0; -} - -static const struct file_operations arcpgu_drm_ops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = arcpgu_gem_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(arcpgu_drm_ops); static void arcpgu_lastclose(struct drm_device *drm) { @@ -142,7 +120,7 @@ static int arcpgu_load(struct drm_device *drm) return -ENODEV; } - platform_set_drvdata(pdev, arcpgu); + platform_set_drvdata(pdev, drm); return 0; } @@ -160,11 +138,37 @@ static int arcpgu_unload(struct drm_device *drm) return 0; } +#ifdef CONFIG_DEBUG_FS +static int arcpgu_show_pxlclock(struct seq_file *m, void *arg) +{ + struct drm_info_node *node = (struct drm_info_node *)m->private; + struct drm_device *drm = node->minor->dev; + struct arcpgu_drm_private *arcpgu = drm->dev_private; + unsigned long clkrate = clk_get_rate(arcpgu->clk); + unsigned long mode_clock = arcpgu->crtc.mode.crtc_clock * 1000; + + seq_printf(m, "hw : %lu\n", clkrate); + seq_printf(m, "mode: %lu\n", mode_clock); + return 0; +} + +static struct drm_info_list arcpgu_debugfs_list[] = { + { "clocks", arcpgu_show_pxlclock, 0 }, + { "fb", drm_fb_cma_debugfs_show, 0 }, +}; + +static int arcpgu_debugfs_init(struct drm_minor *minor) +{ + return drm_debugfs_create_files(arcpgu_debugfs_list, + ARRAY_SIZE(arcpgu_debugfs_list), minor->debugfs_root, minor); +} +#endif + static struct drm_driver arcpgu_drm_driver = { .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC, .lastclose = arcpgu_lastclose, - .name = "drm-arcpgu", + .name = "arcpgu", .desc = "ARC PGU Controller", .date = "20160219", .major = 1, @@ -183,6 +187,9 @@ static struct drm_driver arcpgu_drm_driver = { .gem_prime_vmap = drm_gem_cma_prime_vmap, .gem_prime_vunmap = drm_gem_cma_prime_vunmap, .gem_prime_mmap = drm_gem_cma_prime_mmap, +#ifdef CONFIG_DEBUG_FS + .debugfs_init = arcpgu_debugfs_init, +#endif }; static int arcpgu_probe(struct platform_device *pdev) |