Code registering different drivers and simple platform devices was dispersed across multiple sub-modules. This patch moves it to one place. As a result initialization code is shorter and cleaner and should simplify further development.
Signed-off-by: Andrzej Hajda a.hajda@samsung.com --- drivers/gpu/drm/exynos/exynos_drm_drv.c | 221 +++++++++++++++++++------------ drivers/gpu/drm/exynos/exynos_drm_drv.h | 17 --- drivers/gpu/drm/exynos/exynos_drm_ipp.c | 27 ---- drivers/gpu/drm/exynos/exynos_drm_vidi.c | 35 ----- 4 files changed, 139 insertions(+), 161 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 08b9a8c..5c5a72a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -38,8 +38,6 @@ #define DRIVER_MAJOR 1 #define DRIVER_MINOR 0
-static struct platform_device *exynos_drm_pdev; - static DEFINE_MUTEX(drm_component_lock); static LIST_HEAD(drm_component_list);
@@ -527,7 +525,41 @@ static const struct component_master_ops exynos_drm_ops = { .unbind = exynos_drm_unbind, };
+static int exynos_drm_platform_probe(struct platform_device *pdev) +{ + struct component_match *match; + + pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls); + + match = exynos_drm_match_add(&pdev->dev); + if (IS_ERR(match)) { + return PTR_ERR(match); + } + + return component_master_add_with_match(&pdev->dev, &exynos_drm_ops, + match); +} + +static int exynos_drm_platform_remove(struct platform_device *pdev) +{ + component_master_del(&pdev->dev, &exynos_drm_ops); + return 0; +} + +static struct platform_driver exynos_drm_platform_driver = { + .probe = exynos_drm_platform_probe, + .remove = exynos_drm_platform_remove, + .driver = { + .name = "exynos-drm", + .pm = &exynos_drm_pm_ops, + }, +}; + static struct platform_driver *const exynos_drm_kms_drivers[] = { +#ifdef CONFIG_DRM_EXYNOS_VIDI + &vidi_driver, +#endif #ifdef CONFIG_DRM_EXYNOS_FIMD &fimd_driver, #endif @@ -562,30 +594,109 @@ static struct platform_driver *const exynos_drm_non_kms_drivers[] = { #ifdef CONFIG_DRM_EXYNOS_IPP &ipp_driver, #endif + &exynos_drm_platform_driver, };
-static int exynos_drm_platform_probe(struct platform_device *pdev) + +static struct platform_driver *const exynos_drm_drv_with_simple_dev[] = { +#ifdef CONFIG_DRM_EXYNOS_VIDI + &vidi_driver, +#endif +#ifdef CONFIG_DRM_EXYNOS_IPP + &ipp_driver, +#endif + &exynos_drm_platform_driver, +}; + +#define PDEV_COUNT ARRAY_SIZE(exynos_drm_drv_with_simple_dev) + +static struct platform_device *exynos_drm_pdevs[PDEV_COUNT]; + +static void exynos_drm_unregister_devices(void) { - struct component_match *match; + int i = PDEV_COUNT;
- pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls); + while (--i >= 0) { + platform_device_unregister(exynos_drm_pdevs[i]); + exynos_drm_pdevs[i] = NULL; + } +}
- match = exynos_drm_match_add(&pdev->dev); - if (IS_ERR(match)) { - return PTR_ERR(match); +static int exynos_drm_register_devices(void) +{ + int i; + + for (i = 0; i < PDEV_COUNT; ++i) { + struct platform_driver *d = exynos_drm_drv_with_simple_dev[i]; + struct platform_device *pdev = + platform_device_register_simple(d->driver.name,-1, NULL, + 0); + + if (!IS_ERR(pdev)) { + exynos_drm_pdevs[i] = pdev; + continue; + } + while (--i >= 0) { + platform_device_unregister(exynos_drm_pdevs[i]); + exynos_drm_pdevs[i] = NULL; + } + + return PTR_ERR(pdev); }
- return component_master_add_with_match(&pdev->dev, &exynos_drm_ops, - match); + return 0; }
-static int exynos_drm_platform_remove(struct platform_device *pdev) +static void exynos_drm_unregister_drivers(struct platform_driver * const *drv, + int count) { - component_master_del(&pdev->dev, &exynos_drm_ops); + while (--count >= 0) + platform_driver_unregister(drv[count]); +} + +static int exynos_drm_register_drivers(struct platform_driver * const *drv, + int count) +{ + int i, ret; + + for (i = 0; i < count; ++i) { + ret = platform_driver_register(drv[i]); + if (!ret) + continue; + + while (--i >= 0) + platform_driver_unregister(drv[i]); + + return ret; + } + return 0; }
+static inline int exynos_drm_register_kms_drivers(void) +{ + return exynos_drm_register_drivers(exynos_drm_kms_drivers, + ARRAY_SIZE(exynos_drm_kms_drivers)); +} + +static inline int exynos_drm_register_non_kms_drivers(void) +{ + return exynos_drm_register_drivers(exynos_drm_non_kms_drivers, + ARRAY_SIZE(exynos_drm_non_kms_drivers)); +} + +static inline void exynos_drm_unregister_kms_drivers(void) +{ + exynos_drm_unregister_drivers(exynos_drm_kms_drivers, + ARRAY_SIZE(exynos_drm_kms_drivers)); +} + +static inline void exynos_drm_unregister_non_kms_drivers(void) +{ + exynos_drm_unregister_drivers(exynos_drm_non_kms_drivers, + ARRAY_SIZE(exynos_drm_non_kms_drivers)); +} + static const char * const strings[] = { "samsung,exynos3", "samsung,exynos4", @@ -593,19 +704,10 @@ static const char * const strings[] = { "samsung,exynos7", };
-static struct platform_driver exynos_drm_platform_driver = { - .probe = exynos_drm_platform_probe, - .remove = exynos_drm_platform_remove, - .driver = { - .name = "exynos-drm", - .pm = &exynos_drm_pm_ops, - }, -}; - static int exynos_drm_init(void) { bool is_exynos = false; - int ret, i, j; + int ret, i;
/* * Register device object only in case of Exynos SoC. @@ -624,79 +726,34 @@ static int exynos_drm_init(void) if (!is_exynos) return -ENODEV;
- exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1, - NULL, 0); - if (IS_ERR(exynos_drm_pdev)) - return PTR_ERR(exynos_drm_pdev); - - ret = exynos_drm_probe_vidi(); - if (ret < 0) - goto err_unregister_pd; - - for (i = 0; i < ARRAY_SIZE(exynos_drm_kms_drivers); ++i) { - ret = platform_driver_register(exynos_drm_kms_drivers[i]); - if (ret < 0) - goto err_unregister_kms_drivers; - } - - for (j = 0; j < ARRAY_SIZE(exynos_drm_non_kms_drivers); ++j) { - ret = platform_driver_register(exynos_drm_non_kms_drivers[j]); - if (ret < 0) - goto err_unregister_non_kms_drivers; - } + ret = exynos_drm_register_devices(); + if (ret) + return ret;
-#ifdef CONFIG_DRM_EXYNOS_IPP - ret = exynos_platform_device_ipp_register(); - if (ret < 0) - goto err_unregister_non_kms_drivers; -#endif + ret = exynos_drm_register_kms_drivers(); + if (ret) + goto err_unregister_pdevs;
- ret = platform_driver_register(&exynos_drm_platform_driver); + ret = exynos_drm_register_non_kms_drivers(); if (ret) - goto err_unregister_resources; + goto err_unregister_kms_drivers;
return 0;
-err_unregister_resources: -#ifdef CONFIG_DRM_EXYNOS_IPP - exynos_platform_device_ipp_unregister(); -#endif - -err_unregister_non_kms_drivers: - while (--j >= 0) - platform_driver_unregister(exynos_drm_non_kms_drivers[j]); - err_unregister_kms_drivers: - while (--i >= 0) - platform_driver_unregister(exynos_drm_kms_drivers[i]); + exynos_drm_unregister_kms_drivers();
- exynos_drm_remove_vidi(); - -err_unregister_pd: - platform_device_unregister(exynos_drm_pdev); +err_unregister_pdevs: + exynos_drm_unregister_devices();
return ret; }
static void exynos_drm_exit(void) { - int i; - -#ifdef CONFIG_DRM_EXYNOS_IPP - exynos_platform_device_ipp_unregister(); -#endif - - for (i = ARRAY_SIZE(exynos_drm_non_kms_drivers) - 1; i >= 0; --i) - platform_driver_unregister(exynos_drm_non_kms_drivers[i]); - - for (i = ARRAY_SIZE(exynos_drm_kms_drivers) - 1; i >= 0; --i) - platform_driver_unregister(exynos_drm_kms_drivers[i]); - - platform_driver_unregister(&exynos_drm_platform_driver); - - exynos_drm_remove_vidi(); - - platform_device_unregister(exynos_drm_pdev); + exynos_drm_unregister_non_kms_drivers(); + exynos_drm_unregister_kms_drivers(); + exynos_drm_unregister_devices(); }
module_init(exynos_drm_init); diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 1c66f65..b308e90 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -295,15 +295,6 @@ int exynos_drm_device_subdrv_remove(struct drm_device *dev); int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file); void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
-#ifdef CONFIG_DRM_EXYNOS_IPP -int exynos_platform_device_ipp_register(void); -void exynos_platform_device_ipp_unregister(void); -#else -static inline int exynos_platform_device_ipp_register(void) { return 0; } -static inline void exynos_platform_device_ipp_unregister(void) {} -#endif - - #ifdef CONFIG_DRM_EXYNOS_DPI struct exynos_drm_display * exynos_dpi_probe(struct device *dev); int exynos_dpi_remove(struct exynos_drm_display *display); @@ -316,14 +307,6 @@ static inline int exynos_dpi_remove(struct exynos_drm_display *display) } #endif
-#ifdef CONFIG_DRM_EXYNOS_VIDI -int exynos_drm_probe_vidi(void); -void exynos_drm_remove_vidi(void); -#else -static inline int exynos_drm_probe_vidi(void) { return 0; } -static inline void exynos_drm_remove_vidi(void) {} -#endif - /* This function creates a encoder and a connector, and initializes them. */ int exynos_drm_create_enc_conn(struct drm_device *dev, struct exynos_drm_display *display); diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c index b7f1cbc..f594dd7 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c +++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c @@ -45,9 +45,6 @@ #define get_ipp_context(dev) platform_get_drvdata(to_platform_device(dev)) #define ipp_is_m2m_cmd(c) (c == IPP_CMD_M2M)
-/* platform device pointer for ipp device. */ -static struct platform_device *exynos_drm_ipp_pdev; - /* * A structure of event. * @@ -102,30 +99,6 @@ static LIST_HEAD(exynos_drm_ippdrv_list); static DEFINE_MUTEX(exynos_drm_ippdrv_lock); static BLOCKING_NOTIFIER_HEAD(exynos_drm_ippnb_list);
-int exynos_platform_device_ipp_register(void) -{ - struct platform_device *pdev; - - if (exynos_drm_ipp_pdev) - return -EEXIST; - - pdev = platform_device_register_simple("exynos-drm-ipp", -1, NULL, 0); - if (IS_ERR(pdev)) - return PTR_ERR(pdev); - - exynos_drm_ipp_pdev = pdev; - - return 0; -} - -void exynos_platform_device_ipp_unregister(void) -{ - if (exynos_drm_ipp_pdev) { - platform_device_unregister(exynos_drm_ipp_pdev); - exynos_drm_ipp_pdev = NULL; - } -} - int exynos_drm_ippdrv_register(struct exynos_drm_ippdrv *ippdrv) { mutex_lock(&exynos_drm_ippdrv_lock); diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index abe4ee0..f63ac58 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -571,38 +571,3 @@ struct platform_driver vidi_driver = { .owner = THIS_MODULE, }, }; - -int exynos_drm_probe_vidi(void) -{ - struct platform_device *pdev; - int ret; - - pdev = platform_device_register_simple("exynos-drm-vidi", -1, NULL, 0); - if (IS_ERR(pdev)) - return PTR_ERR(pdev); - - ret = platform_driver_register(&vidi_driver); - if (ret) { - platform_device_unregister(pdev); - return ret; - } - - return ret; -} - -static int exynos_drm_remove_vidi_device(struct device *dev, void *data) -{ - platform_device_unregister(to_platform_device(dev)); - - return 0; -} - -void exynos_drm_remove_vidi(void) -{ - int ret = driver_for_each_device(&vidi_driver.driver, NULL, NULL, - exynos_drm_remove_vidi_device); - /* silence compiler warning */ - (void)ret; - - platform_driver_unregister(&vidi_driver); -}