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drm/ast: Call open_key before enable_mmio in POST code

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commit 9bb92f5155 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>
This commit is contained in:
Y.C. Chen
2017-02-22 15:14:19 +11:00
committed by Greg Kroah-Hartman
parent 54aa80e300
commit 5da03582e2
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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@ -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)