diff options
Diffstat (limited to 'drivers/gpu/drm/tilcdc/tilcdc_drv.c')
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_drv.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index 2b5461bcd9fb..40b71da5a214 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -26,6 +26,7 @@ #include "drm_fb_helper.h" static LIST_HEAD(module_list); +static bool slave_probing; void tilcdc_module_init(struct tilcdc_module *mod, const char *name, const struct tilcdc_module_ops *funcs) @@ -41,6 +42,11 @@ void tilcdc_module_cleanup(struct tilcdc_module *mod) list_del(&mod->list); } +void tilcdc_slave_probedefer(bool defered) +{ + slave_probing = defered; +} + static struct of_device_id tilcdc_of_match[]; static struct drm_framebuffer *tilcdc_fb_create(struct drm_device *dev, @@ -157,7 +163,9 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) struct platform_device *pdev = dev->platformdev; struct device_node *node = pdev->dev.of_node; struct tilcdc_drm_private *priv; + struct tilcdc_module *mod; struct resource *res; + u32 bpp = 0; int ret; priv = kzalloc(sizeof(*priv), GFP_KERNEL); @@ -210,7 +218,20 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) #endif if (of_property_read_u32(node, "max-bandwidth", &priv->max_bandwidth)) - priv->max_bandwidth = 1280 * 1024 * 60; + priv->max_bandwidth = TILCDC_DEFAULT_MAX_BANDWIDTH; + + DBG("Maximum Bandwidth Value %d", priv->max_bandwidth); + + if (of_property_read_u32(node, "ti,max-width", &priv->max_width)) + priv->max_width = TILCDC_DEFAULT_MAX_WIDTH; + + DBG("Maximum Horizontal Pixel Width Value %dpixels", priv->max_width); + + if (of_property_read_u32(node, "ti,max-pixelclock", + &priv->max_pixelclock)) + priv->max_pixelclock = TILCDC_DEFAULT_MAX_PIXELCLOCK; + + DBG("Maximum Pixel Clock Value %dKHz", priv->max_pixelclock); pm_runtime_enable(dev->dev); @@ -256,7 +277,15 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) platform_set_drvdata(pdev, dev); - priv->fbdev = drm_fbdev_cma_init(dev, 16, + + list_for_each_entry(mod, &module_list, list) { + DBG("%s: preferred_bpp: %d", mod->name, mod->preferred_bpp); + bpp = mod->preferred_bpp; + if (bpp > 0) + break; + } + + priv->fbdev = drm_fbdev_cma_init(dev, bpp, dev->mode_config.num_crtc, dev->mode_config.num_connector); @@ -557,6 +586,10 @@ static int tilcdc_pdev_probe(struct platform_device *pdev) return -ENXIO; } + /* defer probing if slave is in deferred probing */ + if (slave_probing == true) + return -EPROBE_DEFER; + return drm_platform_init(&tilcdc_driver, pdev); } |