From bad09da6deab157440a3f0dd5e6c03cdc60c0a91 Mon Sep 17 00:00:00 2001 From: "Y.C. Chen" Date: Fri, 17 Feb 2017 10:56:47 +0800 Subject: [PATCH] drm/ast: Fixed vram size incorrect issue on POWER The default value of VGA scratch may incorrect. Should initial h/w before get vram info. Acked-by: Joel Stanley Tested-by: Y.C. Chen Signed-off-by: Y.C. Chen Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Dave Airlie --- 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 8e8c0310245f..262c2c0e43b4 100644 --- a/drivers/gpu/drm/ast/ast_main.c +++ b/drivers/gpu/drm/ast/ast_main.c @@ -518,6 +518,9 @@ 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) @@ -528,9 +531,6 @@ 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 64549cebcc5b..e8024502e749 100644 --- a/drivers/gpu/drm/ast/ast_post.c +++ b/drivers/gpu/drm/ast/ast_post.c @@ -79,7 +79,7 @@ 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) {