diff options
Diffstat (limited to 'drivers/gpu/drm/display/drm_dp_cec.c')
| -rw-r--r-- | drivers/gpu/drm/display/drm_dp_cec.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/gpu/drm/display/drm_dp_cec.c b/drivers/gpu/drm/display/drm_dp_cec.c index ae39dc794190..007ceb281d00 100644 --- a/drivers/gpu/drm/display/drm_dp_cec.c +++ b/drivers/gpu/drm/display/drm_dp_cec.c @@ -14,6 +14,7 @@ #include <drm/display/drm_dp_helper.h> #include <drm/drm_connector.h> #include <drm/drm_device.h> +#include <drm/drm_edid.h> /* * Unfortunately it turns out that we have a chicken-and-egg situation @@ -297,7 +298,7 @@ static void drm_dp_cec_unregister_work(struct work_struct *work) * were unchanged and just update the CEC physical address. Otherwise * unregister the old CEC adapter and create a new one. */ -void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid) +void drm_dp_cec_attach(struct drm_dp_aux *aux, u16 source_physical_address) { struct drm_connector *connector = aux->cec.connector; u32 cec_caps = CEC_CAP_DEFAULTS | CEC_CAP_NEEDS_HPD | @@ -339,7 +340,7 @@ void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid) if (aux->cec.adap->capabilities == cec_caps && aux->cec.adap->available_log_addrs == num_las) { /* Unchanged, so just set the phys addr */ - cec_s_phys_addr_from_edid(aux->cec.adap, edid); + cec_s_phys_addr(aux->cec.adap, source_physical_address, false); goto unlock; } /* @@ -370,11 +371,27 @@ void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid) * from drm_dp_cec_register_connector() edid == NULL, so in * that case the phys addr is just invalidated. */ - cec_s_phys_addr_from_edid(aux->cec.adap, edid); + cec_s_phys_addr(aux->cec.adap, source_physical_address, false); } unlock: mutex_unlock(&aux->cec.lock); } +EXPORT_SYMBOL(drm_dp_cec_attach); + +/* + * Note: Prefer calling drm_dp_cec_attach() with + * connector->display_info.source_physical_address if possible. + */ +void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid) +{ + u16 pa = CEC_PHYS_ADDR_INVALID; + + if (edid && edid->extensions) + pa = cec_get_edid_phys_addr((const u8 *)edid, + EDID_LENGTH * (edid->extensions + 1), NULL); + + drm_dp_cec_attach(aux, pa); +} EXPORT_SYMBOL(drm_dp_cec_set_edid); /* |