diff options
| author | Thierry Reding <treding@nvidia.com> | 2015-12-03 12:45:45 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2019-10-28 11:18:44 +0100 |
| commit | 27ba465ce3397c4705f87c1f73e6d67c1b48ef0f (patch) | |
| tree | 1f1931d9e690bf0e7c1c0070483de4253567cb30 /drivers/gpu/drm/tegra/dp.c | |
| parent | drm/tegra: dp: Track link capabilities alongside settings (diff) | |
| download | linux-27ba465ce3397c4705f87c1f73e6d67c1b48ef0f.tar.xz linux-27ba465ce3397c4705f87c1f73e6d67c1b48ef0f.zip | |
drm/tegra: dp: Turn link capabilities into booleans
Rather than storing capabilities as flags in an integer, use a separate
boolean per capability. This simplifies the code that checks for these
capabilities.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra/dp.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/dp.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/gpu/drm/tegra/dp.c b/drivers/gpu/drm/tegra/dp.c index e55efd46a7d9..e7602fc39a4a 100644 --- a/drivers/gpu/drm/tegra/dp.c +++ b/drivers/gpu/drm/tegra/dp.c @@ -8,6 +8,17 @@ #include "dp.h" +static void drm_dp_link_caps_reset(struct drm_dp_link_caps *caps) +{ + caps->enhanced_framing = false; +} + +void drm_dp_link_caps_copy(struct drm_dp_link_caps *dest, + const struct drm_dp_link_caps *src) +{ + dest->enhanced_framing = src->enhanced_framing; +} + static void drm_dp_link_reset(struct drm_dp_link *link) { if (!link) @@ -16,7 +27,8 @@ static void drm_dp_link_reset(struct drm_dp_link *link) link->revision = 0; link->max_rate = 0; link->max_lanes = 0; - link->capabilities = 0; + + drm_dp_link_caps_reset(&link->caps); link->rate = 0; link->lanes = 0; @@ -49,7 +61,7 @@ int drm_dp_link_probe(struct drm_dp_aux *aux, struct drm_dp_link *link) link->max_lanes = values[2] & DP_MAX_LANE_COUNT_MASK; if (values[2] & DP_ENHANCED_FRAME_CAP) - link->capabilities |= DP_LINK_CAP_ENHANCED_FRAMING; + link->caps.enhanced_framing = true; link->rate = link->max_rate; link->lanes = link->max_lanes; @@ -139,7 +151,7 @@ int drm_dp_link_configure(struct drm_dp_aux *aux, struct drm_dp_link *link) values[0] = drm_dp_link_rate_to_bw_code(link->rate); values[1] = link->lanes; - if (link->capabilities & DP_LINK_CAP_ENHANCED_FRAMING) + if (link->caps.enhanced_framing) values[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN; err = drm_dp_dpcd_write(aux, DP_LINK_BW_SET, values, sizeof(values)); |