drm/ast: Call open_key before enable_mmio in POST code

commit 9bb92f51558f2ef5f56c257bdcea0588f31d857e upstream.

open_key enables access the registers used by enable_mmio

Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Joel Stanley <joel@jms.id.au>
Tested-by: Y.C. Chen <yc_chen@aspeedtech.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/ast/ast_post.c b/drivers/gpu/drm/ast/ast_post.c
index 4e8aaab5dd52383a05c6ddda65cf96df2bda3ada..50836e5498670e50a18d9f578516bd1e19d7a667 100644 (file)
--- a/drivers/gpu/drm/ast/ast_post.c
+++ b/drivers/gpu/drm/ast/ast_post.c
@@ -371,8 +371,8 @@ void ast_post_gpu(struct drm_device *dev)
        pci_write_config_dword(ast->dev->pdev, 0x04, reg);
 
        ast_enable_vga(dev);
-       ast_enable_mmio(dev);
        ast_open_key(ast);
+       ast_enable_mmio(dev);
        ast_set_def_ext_reg(dev);
 
        if (ast->chip == AST2300 || ast->chip == AST2400)