Commit 5da03582 authored Feb 22, 2017 by Y.C. Chen Committed by Greg Kroah-Hartman Mar 15, 2017

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>

parent 54aa80e3

drivers/gpu/drm/ast/ast_post.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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)