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BackMerge tag 'v4.12-rc5' into drm-next

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Linux 4.12-rc5 for nouveau fixes
This commit is contained in:
Dave Airlie
2017-06-16 13:58:27 +10:00
parent a682169891 32c1431eea
commit 925344ccc9
618 changed files with 5571 additions and 3351 deletions
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include/drm/drm_dp_helper.h
+51
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@@ -1081,4 +1081,55 @@ void drm_dp_aux_unregister(struct drm_dp_aux *aux);
int drm_dp_start_crc(struct drm_dp_aux *aux, struct drm_crtc *crtc);
int drm_dp_stop_crc(struct drm_dp_aux *aux);
struct drm_dp_dpcd_ident {
u8 oui[3];
u8 device_id[6];
u8 hw_rev;
u8 sw_major_rev;
u8 sw_minor_rev;
} __packed;
/**
* struct drm_dp_desc - DP branch/sink device descriptor
* @ident: DP device identification from DPCD 0x400 (sink) or 0x500 (branch).
* @quirks: Quirks; use drm_dp_has_quirk() to query for the quirks.
*/
struct drm_dp_desc {
struct drm_dp_dpcd_ident ident;
u32 quirks;
};
int drm_dp_read_desc(struct drm_dp_aux *aux, struct drm_dp_desc *desc,
bool is_branch);
/**
* enum drm_dp_quirk - Display Port sink/branch device specific quirks
*
* Display Port sink and branch devices in the wild have a variety of bugs, try
* to collect them here. The quirks are shared, but it's up to the drivers to
* implement workarounds for them.
*/
enum drm_dp_quirk {
/**
* @DP_DPCD_QUIRK_LIMITED_M_N:
*
* The device requires main link attributes Mvid and Nvid to be limited
* to 16 bits.
*/
DP_DPCD_QUIRK_LIMITED_M_N,
};
/**
* drm_dp_has_quirk() - does the DP device have a specific quirk
* @desc: Device decriptor filled by drm_dp_read_desc()
* @quirk: Quirk to query for
*
* Return true if DP device identified by @desc has @quirk.
*/
static inline bool
drm_dp_has_quirk(const struct drm_dp_desc *desc, enum drm_dp_quirk quirk)
{
return desc->quirks & BIT(quirk);
}
#endif /* _DRM_DP_HELPER_H_ */