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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-06-07 12:20:04 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-06-08 14:16:15 +0300 |
| commit | 7f35680ada234ce00828b8ea841ba7ca1e00ff52 (patch) | |
| tree | 139e5c68510d1c11146a5f0c53384f625a993ade /drivers/gpu/drm/ast/ast_post.c | |
| parent | dfa687bffc8a4a21ed929c7dececf01b8f1f52ee (diff) | |
| download | linux-7f35680ada234ce00828b8ea841ba7ca1e00ff52.tar.xz | |
drm/ast: Support multiple outputs
Systems with AST graphics can have multiple output; typically VGA
plus some other port. Record detected output chips in a bitmask and
initialize each output on its own.
Assume a VGA output by default and use SIL164 and DP501 if available.
For ASTDP assume that it can run in parallel with VGA.
Tested on AST2100.
v3:
* define a macro for each BIT(ast_tx_chip) (Patrik)
v2:
* make VGA/SIL164/DP501 mutually exclusive
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Fixes: a59b026419f3 ("drm/ast: Initialize encoder and connector for VGA in helper function")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20220607092008.22123-2-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/ast/ast_post.c')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_post.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ast/ast_post.c b/drivers/gpu/drm/ast/ast_post.c index 0aa9cf0fb5c3..82fd3c8adee1 100644 --- a/drivers/gpu/drm/ast/ast_post.c +++ b/drivers/gpu/drm/ast/ast_post.c @@ -391,7 +391,7 @@ void ast_post_gpu(struct drm_device *dev) ast_init_3rdtx(dev); } else { - if (ast->tx_chip_type != AST_TX_NONE) + if (ast->tx_chip_types & AST_TX_SIL164_BIT) ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xcf, 0x80); /* Enable DVO */ } } |