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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-25 11:48:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-25 11:48:08 +0300 |
| commit | c04005ef3576893e2db315d9ea2cfa4cf88b2c05 (patch) | |
| tree | c5f73e026486ef172ca5b0f48a34c67d6aa69c5e /drivers/gpu/drm/ast | |
| parent | d15a6b92acfe1f4d7c3d4cf628a348deb7ad6eb3 (diff) | |
| parent | ef4999852d307d38cfdecd91ed6892cc03beb9b8 (diff) | |
| download | linux-rolling-lts.tar.xz | |
Merge v6.12.25linux-rolling-lts
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/ast')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_dp.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ast/ast_dp.c b/drivers/gpu/drm/ast/ast_dp.c index 00b364f9a71e..5dadc895e7f2 100644 --- a/drivers/gpu/drm/ast/ast_dp.c +++ b/drivers/gpu/drm/ast/ast_dp.c @@ -17,6 +17,12 @@ static bool ast_astdp_is_connected(struct ast_device *ast) { if (!ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xDF, AST_IO_VGACRDF_HPD)) return false; + /* + * HPD might be set even if no monitor is connected, so also check that + * the link training was successful. + */ + if (!ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xDC, AST_IO_VGACRDC_LINK_SUCCESS)) + return false; return true; } |