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authorSeung-Woo Kim <sw0312.kim@samsung.com>2013-04-23 14:02:53 +0900
committerInki Dae <inki.dae@samsung.com>2013-04-29 14:35:32 +0900
commit43f4190047a088d2f1ce7fe5c5ae6485f943edc6 (patch)
tree1a4045bdd2feefa740d53d2b3d5000ba39bb2b52 /drivers/gpu
parent0f6f95922e4def60b9e55cecc1fdbaacda9c426d (diff)
downloadop-kernel-dev-43f4190047a088d2f1ce7fe5c5ae6485f943edc6.zip
op-kernel-dev-43f4190047a088d2f1ce7fe5c5ae6485f943edc6.tar.gz
drm/exynos: added ipp device registration to drm driver
This patch added exynos-drm-ipp platform device registration to the exynos drm driver. When DT is enabled, platform devices need to be registered within the driver code. This patch fits the requirement of both DT and Non DT based drm drivers. Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Donghwa Lee <dh09.lee@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_drv.c7
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_drv.h10
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_ipp.c27
3 files changed, 44 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 488278c..ba6d995 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -380,6 +380,10 @@ static int __init exynos_drm_init(void)
ret = platform_driver_register(&ipp_driver);
if (ret < 0)
goto out_ipp;
+
+ ret = exynos_platform_device_ipp_register();
+ if (ret < 0)
+ goto out_ipp_dev;
#endif
ret = platform_driver_register(&exynos_drm_platform_driver);
@@ -400,6 +404,8 @@ out:
out_drm:
#ifdef CONFIG_DRM_EXYNOS_IPP
+ exynos_platform_device_ipp_unregister();
+out_ipp_dev:
platform_driver_unregister(&ipp_driver);
out_ipp:
#endif
@@ -456,6 +462,7 @@ static void __exit exynos_drm_exit(void)
platform_driver_unregister(&exynos_drm_platform_driver);
#ifdef CONFIG_DRM_EXYNOS_IPP
+ exynos_platform_device_ipp_unregister();
platform_driver_unregister(&ipp_driver);
#endif
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index 635d4c5..680a7c1 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -329,6 +329,16 @@ int exynos_platform_device_hdmi_register(void);
*/
void exynos_platform_device_hdmi_unregister(void);
+/*
+ * this function registers exynos drm ipp platform device.
+ */
+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);
+
extern struct platform_driver fimd_driver;
extern struct platform_driver hdmi_driver;
extern struct platform_driver mixer_driver;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
index 1adce07..29d2ad3 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
@@ -47,6 +47,9 @@
#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.
*
@@ -102,6 +105,30 @@ 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)
{
DRM_DEBUG_KMS("%s\n", __func__);
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