diff options
| author | John Barberiz <jbarberi@amd.com> | 2018-02-09 17:48:18 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-03-05 15:33:02 -0500 |
| commit | 11fffe45b76d2849a684f2d769bc76901ba0d301 (patch) | |
| tree | 9aded957a18fc5ff4e1a0e4780dc40b885201b06 | |
| parent | 88ac3ddab12e2b04dca2958e0bc8b90c703e0397 (diff) | |
drm/amd/display: Add passive dongle support for HPD Rearch
Add HPD delay timer support to
1. Single/dual link DVI.
2. DP to HDMI passive dongle
3. DP to DVI passive dongle.
Signed-off-by: John Barberiz <jbarberi@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 2 |
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index f40c9c7aa733..556b155ba5af 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -2358,11 +2358,14 @@ void core_link_set_avmute(struct pipe_ctx *pipe_ctx, bool enable) core_dc->hwss.set_avmute(pipe_ctx, enable); } -void dc_link_disable_hpd_filter(struct dc_link *link) +void dc_link_enable_hpd_filter(struct dc_link *link, bool enable) { struct gpio *hpd; - if (!link->is_hpd_filter_disabled) { + if (enable) { + link->is_hpd_filter_disabled = false; + program_hpd_filter(link); + } else { link->is_hpd_filter_disabled = true; /* Obtain HPD handle */ hpd = get_hpd_gpio(link->ctx->dc_bios, link->link_id, link->ctx->gpio_service); diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index ac0f617b43c9..fb4d9eafdc6e 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -197,7 +197,7 @@ bool dc_link_dp_set_test_pattern( const unsigned char *p_custom_pattern, unsigned int cust_pattern_size); -void dc_link_disable_hpd_filter(struct dc_link *link); +void dc_link_enable_hpd_filter(struct dc_link *link, bool enable); /* * DPCD access interfaces |