diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
| commit | e5fd91f1ef340da553f7a79da9540c3db711c937 (patch) | |
| tree | b11842027dc6641da63f4bcc524f8678263304a3 /drivers/gpu/drm/msm/edp/edp_aux.c | |
| parent | 2a9b0348e685a63d97486f6749622b61e9e3292f (diff) | |
Linux-libre 4.2-gnu
Diffstat (limited to 'drivers/gpu/drm/msm/edp/edp_aux.c')
| -rw-r--r-- | drivers/gpu/drm/msm/edp/edp_aux.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpu/drm/msm/edp/edp_aux.c b/drivers/gpu/drm/msm/edp/edp_aux.c index 208f9d47f..82789dd24 100644 --- a/drivers/gpu/drm/msm/edp/edp_aux.c +++ b/drivers/gpu/drm/msm/edp/edp_aux.c @@ -115,10 +115,12 @@ static int edp_msg_fifo_rx(struct edp_aux *aux, struct drm_dp_aux_msg *msg) * msm_edp_aux_ctrl() running concurrently in other threads, i.e. * start transaction only when AUX channel is fully enabled. */ -ssize_t edp_aux_transfer(struct drm_dp_aux *drm_aux, struct drm_dp_aux_msg *msg) +static 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 +149,17 @@ 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, + msecs_to_jiffies(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,\n", __func__); + ret = -ETIMEDOUT; goto unlock_exit; } DBG("completion"); |