From: Andrzej Hajda a.hajda@samsung.com
The patch replaces separate calls to driver (de)registration by loops over the array of drivers. As a result it significantly decreases number of ifdefs. Additionally it moves device registration related ifdefs to header file.
Changelog v2: - Rebased. - Consider non kms driver in respect to infinite loop issue.
Signed-off-by: Andrzej Hajda a.hajda@samsung.com Signed-off-by: Inki Dae inki.dae@samsung.com --- drivers/gpu/drm/exynos/exynos_drm_drv.c | 196 ++++++++++--------------------- drivers/gpu/drm/exynos/exynos_drm_drv.h | 25 ++-- 2 files changed, 72 insertions(+), 149 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index f0bcdc6..8aee629 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -547,85 +547,74 @@ 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; - int ret; - - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls); - +static struct platform_driver *const exynos_drm_kms_drivers[] = { #ifdef CONFIG_DRM_EXYNOS_FIMD - ret = platform_driver_register(&fimd_driver); - if (ret < 0) - return ret; + &fimd_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_DP - ret = platform_driver_register(&dp_driver); - if (ret < 0) - goto err_unregister_fimd_drv; + &dp_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_DSI - ret = platform_driver_register(&dsi_driver); - if (ret < 0) - goto err_unregister_dp_drv; + &dsi_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_HDMI - ret = platform_driver_register(&mixer_driver); - if (ret < 0) - goto err_unregister_dsi_drv; - ret = platform_driver_register(&hdmi_driver); - if (ret < 0) - goto err_unregister_mixer_drv; + &mixer_driver, + &hdmi_driver, #endif +};
- match = exynos_drm_match_add(&pdev->dev); - if (IS_ERR(match)) { - ret = PTR_ERR(match); - goto err_unregister_hdmi_drv; - } - - ret = component_master_add_with_match(&pdev->dev, &exynos_drm_ops, - match); - if (ret < 0) - goto err_unregister_hdmi_drv; - +static struct platform_driver *const exynos_drm_non_kms_drivers[] = { #ifdef CONFIG_DRM_EXYNOS_G2D - ret = platform_driver_register(&g2d_driver); - if (ret < 0) - goto err_del_component_master; + &g2d_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_FIMC - ret = platform_driver_register(&fimc_driver); - if (ret < 0) - goto err_unregister_g2d_drv; + &fimc_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_ROTATOR - ret = platform_driver_register(&rotator_driver); - if (ret < 0) - goto err_unregister_fimc_drv; + &rotator_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_GSC - ret = platform_driver_register(&gsc_driver); - if (ret < 0) - goto err_unregister_rotator_drv; + &gsc_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_IPP - ret = platform_driver_register(&ipp_driver); + &ipp_driver, +#endif +}; + +static int exynos_drm_platform_probe(struct platform_device *pdev) +{ + struct component_match *match; + int ret, i, j; + + pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls); + + 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; + } + + match = exynos_drm_match_add(&pdev->dev); + if (IS_ERR(match)) { + ret = PTR_ERR(match); + goto err_unregister_kms_drivers; + } + + ret = component_master_add_with_match(&pdev->dev, &exynos_drm_ops, + match); if (ret < 0) - goto err_unregister_gsc_drv; + 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_del_component_master; + }
ret = exynos_platform_device_ipp_register(); if (ret < 0) - goto err_unregister_ipp_drv; -#endif + goto err_unregister_non_kms_drivers;
/* Probe non kms sub drivers and virtual display driver. */ ret = exynos_drm_device_subdrv_probe(platform_get_drvdata(pdev)); @@ -637,98 +626,39 @@ static int exynos_drm_platform_probe(struct platform_device *pdev) err_unregister_resources: #ifdef CONFIG_DRM_EXYNOS_IPP exynos_platform_device_ipp_unregister(); -err_unregister_ipp_drv: - platform_driver_unregister(&ipp_driver); -err_unregister_gsc_drv: #endif +err_unregister_non_kms_drivers: + while (--j >= 0) + platform_driver_unregister(exynos_drm_non_kms_drivers[j]);
-#ifdef CONFIG_DRM_EXYNOS_GSC - platform_driver_unregister(&gsc_driver); -err_unregister_rotator_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_ROTATOR - platform_driver_unregister(&rotator_driver); -err_unregister_fimc_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_FIMC - platform_driver_unregister(&fimc_driver); -err_unregister_g2d_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_G2D - platform_driver_unregister(&g2d_driver); err_del_component_master: -#endif component_master_del(&pdev->dev, &exynos_drm_ops);
-err_unregister_hdmi_drv: -#ifdef CONFIG_DRM_EXYNOS_HDMI - platform_driver_unregister(&hdmi_driver); -err_unregister_mixer_drv: - platform_driver_unregister(&mixer_driver); -err_unregister_dsi_drv: -#endif +err_unregister_kms_drivers: + while (--i >= 0) + platform_driver_unregister(exynos_drm_kms_drivers[i]);
-#ifdef CONFIG_DRM_EXYNOS_DSI - platform_driver_unregister(&dsi_driver); -err_unregister_dp_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_DP - platform_driver_unregister(&dp_driver); -err_unregister_fimd_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_FIMD - platform_driver_unregister(&fimd_driver); -#endif return ret; }
static int exynos_drm_platform_remove(struct platform_device *pdev) { + int i; + exynos_drm_device_subdrv_remove(platform_get_drvdata(pdev));
#ifdef CONFIG_DRM_EXYNOS_IPP exynos_platform_device_ipp_unregister(); - platform_driver_unregister(&ipp_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_GSC - platform_driver_unregister(&gsc_driver); #endif
-#ifdef CONFIG_DRM_EXYNOS_ROTATOR - platform_driver_unregister(&rotator_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_FIMC - platform_driver_unregister(&fimc_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_G2D - platform_driver_unregister(&g2d_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_HDMI - platform_driver_unregister(&mixer_driver); - platform_driver_unregister(&hdmi_driver); -#endif + for (i = ARRAY_SIZE(exynos_drm_non_kms_drivers) - 1; i >= 0; --i) + platform_driver_unregister(exynos_drm_non_kms_drivers[i]);
-#ifdef CONFIG_DRM_EXYNOS_FIMD - platform_driver_unregister(&fimd_driver); -#endif + component_master_del(&pdev->dev, &exynos_drm_ops);
-#ifdef CONFIG_DRM_EXYNOS_DSI - platform_driver_unregister(&dsi_driver); -#endif + for (i = ARRAY_SIZE(exynos_drm_kms_drivers) - 1; i >= 0; --i) + platform_driver_unregister(exynos_drm_kms_drivers[i]);
-#ifdef CONFIG_DRM_EXYNOS_DP - platform_driver_unregister(&dp_driver); -#endif - component_master_del(&pdev->dev, &exynos_drm_ops); return 0; }
@@ -763,11 +693,9 @@ static int exynos_drm_init(void) if (IS_ERR(exynos_drm_pdev)) return PTR_ERR(exynos_drm_pdev);
-#ifdef CONFIG_DRM_EXYNOS_VIDI ret = exynos_drm_probe_vidi(); if (ret < 0) goto err_unregister_pd; -#endif
ret = platform_driver_register(&exynos_drm_platform_driver); if (ret) @@ -776,11 +704,9 @@ static int exynos_drm_init(void) return 0;
err_remove_vidi: -#ifdef CONFIG_DRM_EXYNOS_VIDI exynos_drm_remove_vidi();
err_unregister_pd: -#endif platform_device_unregister(exynos_drm_pdev);
return ret; @@ -789,9 +715,9 @@ err_unregister_pd: static void exynos_drm_exit(void) { platform_driver_unregister(&exynos_drm_platform_driver); -#ifdef CONFIG_DRM_EXYNOS_VIDI + exynos_drm_remove_vidi(); -#endif + platform_device_unregister(exynos_drm_pdev); }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index d22e640..3c81c4b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -323,15 +323,14 @@ int exynos_platform_device_hdmi_register(void); */ void exynos_platform_device_hdmi_unregister(void);
-/* - * this function registers exynos drm ipp platform device. - */ +#ifdef CONFIG_DRM_EXYNOS_IPP int exynos_platform_device_ipp_register(void); - -/* - * this function unregisters exynos drm ipp platform device if it exists. - */ 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); @@ -342,15 +341,13 @@ exynos_dpi_probe(struct device *dev) { return NULL; } static inline int exynos_dpi_remove(struct device *dev) { return 0; } #endif
-/* - * this function registers exynos drm vidi platform device/driver. - */ +#ifdef CONFIG_DRM_EXYNOS_VIDI int exynos_drm_probe_vidi(void); - -/* - * this function unregister exynos drm vidi platform device/driver. - */ 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,