diff options
| author | Archit Taneja <architt@codeaurora.org> | 2015-06-25 05:59:24 (GMT) |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2015-08-15 22:27:14 (GMT) |
| commit | 01199361c665245d557b8eefef56d648ddb3867a (patch) | |
| tree | 7104a606c1d488b28d4b4a12fa273c301d32e254 /drivers/gpu/drm/msm/dsi | |
| parent | 9b7a9fc29a48026d797cbf237121850c1c241df4 (diff) | |
| download | linux-01199361c665245d557b8eefef56d648ddb3867a.tar.xz | |
drm/msm/dsi: Report PHY errors only when they really occur
DSI PHY errors are falsely reported whenever a dsi error occurs. This is
because DSI_DLN0_PHY_ERR isn't only used as a status register, but also
used to mask PHY errors. Currently, we end up reading the mask bits too
and therefore always report errors.
Ignore the register mask bits and check for only the status/clear bits.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/dsi')
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/dsi_host.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 2d8f194..c05a55ec 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1276,7 +1276,11 @@ static void dsi_dln0_phy_err(struct msm_dsi_host *msm_host) status = dsi_read(msm_host, REG_DSI_DLN0_PHY_ERR); - if (status) { + if (status & (DSI_DLN0_PHY_ERR_DLN0_ERR_ESC | + DSI_DLN0_PHY_ERR_DLN0_ERR_SYNC_ESC | + DSI_DLN0_PHY_ERR_DLN0_ERR_CONTROL | + DSI_DLN0_PHY_ERR_DLN0_ERR_CONTENTION_LP0 | + DSI_DLN0_PHY_ERR_DLN0_ERR_CONTENTION_LP1)) { dsi_write(msm_host, REG_DSI_DLN0_PHY_ERR, status); msm_host->err_work_state |= DSI_ERR_STATE_DLN0_PHY; } |