From: Jyri Sarha Date: Mon, 17 Oct 2016 14:53:33 +0000 (+0300) Subject: drm/tilcdc: Stop using struct drm_driver load() callback X-Git-Tag: v4.10-rc1~154^2~18^2~17 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=923310ba73d742450bb41bb017cb1b6704bd32b5;p=karo-tx-linux.git drm/tilcdc: Stop using struct drm_driver load() callback Stop using struct drm_driver load() and unload() callbacks. The callbacks should not be used anymore. Instead of using load the drm_device is allocated with drm_dev_alloc() and registered with drm_dev_register() only after the driver is completely initialized. The deinitialization is done directly either in component unbind callback or in platform driver demove callback. Signed-off-by: Jyri Sarha Reviewed-by: Laurent Pinchart --- diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index 8f897fe2332e..c54e92a207fe 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -194,18 +194,22 @@ static int cpufreq_transition(struct notifier_block *nb, * DRM operations: */ -static int tilcdc_unload(struct drm_device *dev) +static void tilcdc_fini(struct drm_device *dev) { struct tilcdc_drm_private *priv = dev->dev_private; - tilcdc_remove_external_encoders(dev); + drm_modeset_lock_crtc(priv->crtc, NULL); + tilcdc_crtc_disable(priv->crtc); + drm_modeset_unlock_crtc(priv->crtc); + + drm_dev_unregister(dev); - drm_fbdev_cma_fini(priv->fbdev); drm_kms_helper_poll_fini(dev); + drm_fbdev_cma_fini(priv->fbdev); + drm_irq_uninstall(dev); drm_mode_config_cleanup(dev); - drm_vblank_cleanup(dev); - drm_irq_uninstall(dev); + tilcdc_remove_external_encoders(dev); #ifdef CONFIG_CPU_FREQ cpufreq_unregister_notifier(&priv->freq_transition, @@ -225,28 +229,34 @@ static int tilcdc_unload(struct drm_device *dev) pm_runtime_disable(dev->dev); - return 0; + drm_dev_unref(dev); } -static int tilcdc_load(struct drm_device *dev, unsigned long flags) +static int tilcdc_init(struct drm_driver *ddrv, struct device *dev) { - struct platform_device *pdev = dev->platformdev; - struct device_node *node = pdev->dev.of_node; + struct drm_device *ddev; + struct platform_device *pdev = to_platform_device(dev); + struct device_node *node = dev->of_node; struct tilcdc_drm_private *priv; struct resource *res; u32 bpp = 0; int ret; - priv = devm_kzalloc(dev->dev, sizeof(*priv), GFP_KERNEL); + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) { - dev_err(dev->dev, "failed to allocate private data\n"); + dev_err(dev, "failed to allocate private data\n"); return -ENOMEM; } - dev->dev_private = priv; + ddev = drm_dev_alloc(ddrv, dev); + if (IS_ERR(ddev)) + return PTR_ERR(ddev); + + ddev->platformdev = pdev; + ddev->dev_private = priv; priv->is_componentized = - tilcdc_get_external_components(dev->dev, NULL) > 0; + tilcdc_get_external_components(dev, NULL) > 0; priv->wq = alloc_ordered_workqueue("tilcdc", 0); if (!priv->wq) { @@ -256,21 +266,21 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { - dev_err(dev->dev, "failed to get memory resource\n"); + dev_err(dev, "failed to get memory resource\n"); ret = -EINVAL; goto fail_free_wq; } priv->mmio = ioremap_nocache(res->start, resource_size(res)); if (!priv->mmio) { - dev_err(dev->dev, "failed to ioremap\n"); + dev_err(dev, "failed to ioremap\n"); ret = -ENOMEM; goto fail_free_wq; } - priv->clk = clk_get(dev->dev, "fck"); + priv->clk = clk_get(dev, "fck"); if (IS_ERR(priv->clk)) { - dev_err(dev->dev, "failed to get functional clock\n"); + dev_err(dev, "failed to get functional clock\n"); ret = -ENODEV; goto fail_iounmap; } @@ -280,7 +290,7 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) ret = cpufreq_register_notifier(&priv->freq_transition, CPUFREQ_TRANSITION_NOTIFIER); if (ret) { - dev_err(dev->dev, "failed to register cpufreq notifier\n"); + dev_err(dev, "failed to register cpufreq notifier\n"); goto fail_put_clk; } #endif @@ -301,11 +311,11 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) DBG("Maximum Pixel Clock Value %dKHz", priv->max_pixelclock); - pm_runtime_enable(dev->dev); + pm_runtime_enable(dev); /* Determine LCD IP Version */ - pm_runtime_get_sync(dev->dev); - switch (tilcdc_read(dev, LCDC_PID_REG)) { + pm_runtime_get_sync(dev); + switch (tilcdc_read(ddev, LCDC_PID_REG)) { case 0x4c100102: priv->rev = 1; break; @@ -314,14 +324,14 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) priv->rev = 2; break; default: - dev_warn(dev->dev, "Unknown PID Reg value 0x%08x, " - "defaulting to LCD revision 1\n", - tilcdc_read(dev, LCDC_PID_REG)); + dev_warn(dev, "Unknown PID Reg value 0x%08x, " + "defaulting to LCD revision 1\n", + tilcdc_read(ddev, LCDC_PID_REG)); priv->rev = 1; break; } - pm_runtime_put_sync(dev->dev); + pm_runtime_put_sync(dev); if (priv->rev == 1) { DBG("Revision 1 LCDC supports only RGB565 format"); @@ -354,74 +364,82 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) } } - ret = modeset_init(dev); + ret = modeset_init(ddev); if (ret < 0) { - dev_err(dev->dev, "failed to initialize mode setting\n"); + dev_err(dev, "failed to initialize mode setting\n"); goto fail_cpufreq_unregister; } - platform_set_drvdata(pdev, dev); + platform_set_drvdata(pdev, ddev); if (priv->is_componentized) { - ret = component_bind_all(dev->dev, dev); + ret = component_bind_all(dev, ddev); if (ret < 0) goto fail_mode_config_cleanup; - ret = tilcdc_add_external_encoders(dev); + ret = tilcdc_add_external_encoders(ddev); if (ret < 0) goto fail_component_cleanup; } if ((priv->num_encoders == 0) || (priv->num_connectors == 0)) { - dev_err(dev->dev, "no encoders/connectors found\n"); + dev_err(dev, "no encoders/connectors found\n"); ret = -ENXIO; goto fail_external_cleanup; } - ret = drm_vblank_init(dev, 1); + ret = drm_vblank_init(ddev, 1); if (ret < 0) { - dev_err(dev->dev, "failed to initialize vblank\n"); + dev_err(dev, "failed to initialize vblank\n"); goto fail_external_cleanup; } - ret = drm_irq_install(dev, platform_get_irq(dev->platformdev, 0)); + ret = drm_irq_install(ddev, platform_get_irq(pdev, 0)); if (ret < 0) { - dev_err(dev->dev, "failed to install IRQ handler\n"); + dev_err(dev, "failed to install IRQ handler\n"); goto fail_vblank_cleanup; } - drm_mode_config_reset(dev); + drm_mode_config_reset(ddev); - priv->fbdev = drm_fbdev_cma_init(dev, bpp, - dev->mode_config.num_crtc, - dev->mode_config.num_connector); + priv->fbdev = drm_fbdev_cma_init(ddev, bpp, + ddev->mode_config.num_crtc, + ddev->mode_config.num_connector); if (IS_ERR(priv->fbdev)) { ret = PTR_ERR(priv->fbdev); goto fail_irq_uninstall; } - drm_kms_helper_poll_init(dev); + drm_kms_helper_poll_init(ddev); + + ret = drm_dev_register(ddev, 0); + if (ret) + goto fail_platform_init; return 0; +fail_platform_init: + drm_kms_helper_poll_fini(ddev); + drm_fbdev_cma_fini(priv->fbdev); + fail_irq_uninstall: - drm_irq_uninstall(dev); + drm_irq_uninstall(ddev); fail_vblank_cleanup: - drm_vblank_cleanup(dev); + drm_vblank_cleanup(ddev); fail_component_cleanup: if (priv->is_componentized) - component_unbind_all(dev->dev, dev); + component_unbind_all(dev, dev); fail_mode_config_cleanup: - drm_mode_config_cleanup(dev); + drm_mode_config_cleanup(ddev); fail_external_cleanup: - tilcdc_remove_external_encoders(dev); + tilcdc_remove_external_encoders(ddev); fail_cpufreq_unregister: - pm_runtime_disable(dev->dev); + pm_runtime_disable(dev); #ifdef CONFIG_CPU_FREQ cpufreq_unregister_notifier(&priv->freq_transition, CPUFREQ_TRANSITION_NOTIFIER); @@ -438,7 +456,8 @@ fail_free_wq: destroy_workqueue(priv->wq); fail_unset_priv: - dev->dev_private = NULL; + ddev->dev_private = NULL; + drm_dev_unref(ddev); return ret; } @@ -583,8 +602,6 @@ static const struct file_operations fops = { static struct drm_driver tilcdc_driver = { .driver_features = (DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC), - .load = tilcdc_load, - .unload = tilcdc_unload, .lastclose = tilcdc_lastclose, .irq_handler = tilcdc_irq, .get_vblank_counter = drm_vblank_no_hw_counter, @@ -658,10 +675,9 @@ static const struct dev_pm_ops tilcdc_pm_ops = { /* * Platform driver: */ - static int tilcdc_bind(struct device *dev) { - return drm_platform_init(&tilcdc_driver, to_platform_device(dev)); + return tilcdc_init(&tilcdc_driver, dev); } static void tilcdc_unbind(struct device *dev) @@ -672,7 +688,7 @@ static void tilcdc_unbind(struct device *dev) if (!ddev->dev_private) return; - drm_put_dev(dev_get_drvdata(dev)); + tilcdc_fini(dev_get_drvdata(dev)); } static const struct component_master_ops tilcdc_comp_ops = { @@ -695,7 +711,7 @@ static int tilcdc_pdev_probe(struct platform_device *pdev) if (ret < 0) return ret; else if (ret == 0) - return drm_platform_init(&tilcdc_driver, pdev); + return tilcdc_init(&tilcdc_driver, &pdev->dev); else return component_master_add_with_match(&pdev->dev, &tilcdc_comp_ops, @@ -710,7 +726,7 @@ static int tilcdc_pdev_remove(struct platform_device *pdev) if (ret < 0) return ret; else if (ret == 0) - drm_put_dev(platform_get_drvdata(pdev)); + tilcdc_fini(platform_get_drvdata(pdev)); else component_master_del(&pdev->dev, &tilcdc_comp_ops);