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drm/ast: Call open_key before enable_mmio in POST code

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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>
Cc: <stable@vger.kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Y.C. Chen 2017-02-22 15:14:19 +11:00 committed by Dave Airlie
parent 905f21a49d
commit 9bb92f5155
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/ast/ast_post.c
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@ -374,8 +374,8 @@ 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->config_mode == ast_use_p2a) {