diff options
| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2019-05-28 11:27:24 +0300 |
|---|---|---|
| committer | Andrzej Hajda <a.hajda@samsung.com> | 2019-05-31 15:41:15 +0200 |
| commit | bfb6e014c45f84b3bab1842a04907c10c3d63f95 (patch) | |
| tree | 3c72ad427ab32d4605a95b0fe3a62bb809ee1e59 /drivers/gpu/drm/bridge/tc358767.c | |
| parent | c25b84c008264e5ec7fae113a3729442eee31fea (diff) | |
drm/bridge: tc358767: fix tc_aux_get_status error handling
tc_aux_get_status() does not report AUX_TIMEOUT correctly, as it only
checks the AUX_TIMEOUT if aux is still busy. Fix this by always checking
for AUX_TIMEOUT.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528082747.3631-2-tomi.valkeinen@ti.com
Diffstat (limited to 'drivers/gpu/drm/bridge/tc358767.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358767.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index e570c9dee180..b6c4d1063ccb 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -286,14 +286,17 @@ static int tc_aux_get_status(struct tc_data *tc, u8 *reply) ret = regmap_read(tc->regmap, DP0_AUXSTATUS, &value); if (ret < 0) return ret; + if (value & AUX_BUSY) { - if (value & AUX_TIMEOUT) { - dev_err(tc->dev, "i2c access timeout!\n"); - return -ETIMEDOUT; - } + dev_err(tc->dev, "aux busy!\n"); return -EBUSY; } + if (value & AUX_TIMEOUT) { + dev_err(tc->dev, "aux access timeout!\n"); + return -ETIMEDOUT; + } + *reply = (value & AUX_STATUS_MASK) >> AUX_STATUS_SHIFT; return 0; } |