diff options
| -rw-r--r-- | drivers/gpu/drm/msm/edp/edp_aux.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/msm/edp/edp_aux.c b/drivers/gpu/drm/msm/edp/edp_aux.c index 208f9d47f82e..5f77bf0adf1d 100644 --- a/drivers/gpu/drm/msm/edp/edp_aux.c +++ b/drivers/gpu/drm/msm/edp/edp_aux.c @@ -119,6 +119,7 @@ ssize_t edp_aux_transfer(struct drm_dp_aux *drm_aux, struct drm_dp_aux_msg *msg) { struct edp_aux *aux = to_edp_aux(drm_aux); ssize_t ret; + unsigned long time_left; bool native = msg->request & (DP_AUX_NATIVE_WRITE & DP_AUX_NATIVE_READ); bool read = msg->request & (DP_AUX_I2C_READ & DP_AUX_NATIVE_READ); @@ -147,15 +148,16 @@ ssize_t edp_aux_transfer(struct drm_dp_aux *drm_aux, struct drm_dp_aux_msg *msg) goto unlock_exit; DBG("wait_for_completion"); - ret = wait_for_completion_timeout(&aux->msg_comp, 300); - if (ret <= 0) { + time_left = wait_for_completion_timeout(&aux->msg_comp, 300); + if (!time_left) { /* * Clear GO and reset AUX channel * to cancel the current transaction. */ edp_write(aux->base + REG_EDP_AUX_TRANS_CTRL, 0); msm_edp_aux_ctrl(aux, 1); - pr_err("%s: aux timeout, %zd\n", __func__, ret); + pr_err("%s: aux timeout, %lu\n", __func__, time_left); + ret = -ETIMEDOUT; goto unlock_exit; } DBG("completion"); |