diff options
| author | Y.C. Chen <yc_chen@aspeedtech.com> | 2017-02-22 15:10:50 +1100 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-07-04 11:51:38 +0200 |
| commit | 9e30f017d45566814a1478380ddc8ed57dc7c06a (patch) | |
| tree | b65896fda4c8dcbcc5f416c37213215274cb6065 /drivers/gpu | |
| parent | f17739cdeb937502fec0ef81775f2b51b602f9c6 (diff) | |
drm/ast: Fix test for VGA enabled
commit 905f21a49d388de3e99438235f3301cabf0c0ef4 upstream.
The test to see if VGA was already enabled is doing an unnecessary
second test from a register that may or may not have been initialized
to a valid value. Remove it.
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: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_post.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/gpu/drm/ast/ast_post.c b/drivers/gpu/drm/ast/ast_post.c index 977cfb358..d3464f35f 100644 --- a/drivers/gpu/drm/ast/ast_post.c +++ b/drivers/gpu/drm/ast/ast_post.c @@ -53,13 +53,9 @@ ast_is_vga_enabled(struct drm_device *dev) /* TODO 1180 */ } else { ch = ast_io_read8(ast, 0x43); - if (ch) { - ast_open_key(ast); - ch = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0xff); - return ch & 0x04; - } + return !!(ch & 0x01); } - return 0; + return false; } #endif |