From: "Y.C. Chen" <yc_chen@xxxxxxxxxxxxxx>
The default value of VGA scratch may incorrect.
Should initial h/w before get vram info.
Signed-off-by: Y.C. Chen <yc_chen@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/ast/ast_main.c | 6 +++---
drivers/gpu/drm/ast/ast_post.c | 2 +-
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index f9128b9..839e456 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -502,6 +502,9 @@ int ast_driver_load(struct drm_device *dev, unsigned long flags)
ast_detect_chip(dev, &need_post);
+ if (need_post)
+ ast_post_gpu(dev);
+
if (ast->chip != AST1180) {
ret = ast_get_dram_info(dev);
if (ret)
@@ -512,9 +515,6 @@ int ast_driver_load(struct drm_device *dev, unsigned long flags)
ast->dram_bus_width, ast->vram_size);
}
- if (need_post)
- ast_post_gpu(dev);
-
ret = ast_mm_init(ast);
if (ret)
goto out_free;
diff --git a/drivers/gpu/drm/ast/ast_post.c b/drivers/gpu/drm/ast/ast_post.c
index 484138b..90000f9 100644
--- a/drivers/gpu/drm/ast/ast_post.c
+++ b/drivers/gpu/drm/ast/ast_post.c
@@ -80,7 +80,7 @@ ast_set_def_ext_reg(struct drm_device *dev)
const u8 *ext_reg_info;
/* reset scratch */
- for (i = 0x81; i <= 0x8f; i++)
+ for (i = 0x81; i <= 0x9f; i++)
ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, 0x00);
if (ast->chip == AST2300 || ast->chip == AST2400 ||
--
2.9.3
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