[PATCH 2/2] drm/exynos: remove ifdeferry from initialization code
Inki Dae
inki.dae at samsung.com
Wed Nov 12 23:50:09 PST 2014
From: Andrzej Hajda <a.hajda at 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 at samsung.com>
Signed-off-by: Inki Dae <inki.dae at 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,
--
1.7.9.5
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