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| author | Thierry Reding <treding@nvidia.com> | 2018-02-01 19:46:42 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2019-10-28 13:18:53 +0300 |
| commit | 6a127160c4883abf3a54d97024eda8118849fd5c (patch) | |
| tree | 7e5392e39793f0805aa4e176ad77e3a4550b0cdd /drivers/gpu/drm/tegra/dp.h | |
| parent | 01f09f242eb5cb194a88cef669a099fa10fcb3f0 (diff) | |
| download | linux-6a127160c4883abf3a54d97024eda8118849fd5c.tar.xz | |
drm/tegra: dp: Add support for eDP link rates
Parses additional link rates from DPCD if the sink supports eDP 1.4.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra/dp.h')
| -rw-r--r-- | drivers/gpu/drm/tegra/dp.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/dp.h b/drivers/gpu/drm/tegra/dp.h index e07b9a1e43d8..a20ee9f1f1b6 100644 --- a/drivers/gpu/drm/tegra/dp.h +++ b/drivers/gpu/drm/tegra/dp.h @@ -66,6 +66,8 @@ void drm_dp_link_caps_copy(struct drm_dp_link_caps *dest, * @edp: eDP revision (0x11: eDP 1.1, 0x12: eDP 1.2, ...) * @rate: currently configured link rate * @lanes: currently configured number of lanes + * @rates: additional supported link rates in kHz (eDP 1.4) + * @num_rates: number of additional supported link rates (eDP 1.4) */ struct drm_dp_link { unsigned char revision; @@ -87,8 +89,15 @@ struct drm_dp_link { unsigned int rate; unsigned int lanes; + + unsigned long rates[DP_MAX_SUPPORTED_RATES]; + unsigned int num_rates; }; +int drm_dp_link_add_rate(struct drm_dp_link *link, unsigned long rate); +int drm_dp_link_remove_rate(struct drm_dp_link *link, unsigned long rate); +void drm_dp_link_update_rates(struct drm_dp_link *link); + int drm_dp_link_probe(struct drm_dp_aux *aux, struct drm_dp_link *link); int drm_dp_link_power_up(struct drm_dp_aux *aux, struct drm_dp_link *link); int drm_dp_link_power_down(struct drm_dp_aux *aux, struct drm_dp_link *link); |