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Subject[PATCH 27/28] drm/mediatek: add third ddp path
Date
This patch create third crtc by third ddp path

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 3 +++
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +++++
drivers/gpu/drm/mediatek/mtk_drm_drv.h | 5 ++++-
3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 658b8dd45b83..2d6aa150a9ff 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -539,6 +539,9 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
int ret;
int i;

+ if (!path)
+ return 0;
+
for (i = 0; i < path_len; i++) {
enum mtk_ddp_comp_id comp_id = path[i];
struct device_node *node;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 08d5d0b47bfe..3d279a299383 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -232,6 +232,11 @@ static int mtk_drm_kms_init(struct drm_device *drm)
if (ret < 0)
goto err_component_unbind;

+ ret = mtk_drm_crtc_create(drm, private->data->third_path,
+ private->data->third_len);
+ if (ret < 0)
+ goto err_component_unbind;
+
/* Use OVL device for all DMA memory allocations */
np = private->comp_node[private->data->main_path[0]] ?:
private->comp_node[private->data->ext_path[0]];
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
index c3378c452c0a..ecc00ca3221d 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -17,7 +17,7 @@
#include <linux/io.h>
#include "mtk_drm_ddp_comp.h"

-#define MAX_CRTC 2
+#define MAX_CRTC 3
#define MAX_CONNECTOR 2

struct device;
@@ -33,6 +33,9 @@ struct mtk_mmsys_driver_data {
unsigned int main_len;
const enum mtk_ddp_comp_id *ext_path;
unsigned int ext_len;
+ const enum mtk_ddp_comp_id *third_path;
+ unsigned int third_len;
+
bool shadow_register;
};

--
2.12.5
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