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| author | Abhinav Kumar <abhinavk@codeaurora.org> | 2018-04-17 13:50:18 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2018-04-19 10:08:09 -0400 |
| commit | a56896c56e861464ff4de1e45a8e31c146eeeec1 (patch) | |
| tree | d6b7f7894bb39314603fae7d1c7623add847258d /drivers/gpu | |
| parent | a6bb80f8efe04be2b2e2dcd1e5cd8fbfdaa35ab0 (diff) | |
| download | linux-a56896c56e861464ff4de1e45a8e31c146eeeec1.tar.gz linux-a56896c56e861464ff4de1e45a8e31c146eeeec1.tar.bz2 linux-a56896c56e861464ff4de1e45a8e31c146eeeec1.zip | |
drm/msm/dsi: check video mode engine status before waiting
Make sure the video mode engine is on before waiting
for the video done interrupt.
Changes in v4:
- Move setting enabled to false earlier
Changes in v3:
- Move the return value check to another
patch
Changes in v2:
- Replace pr_err with dev_err
- Changed error message
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/dsi_host.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 93a3cdde72ef..2f770386ab4a 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -173,6 +173,7 @@ struct msm_dsi_host { bool registered; bool power_on; + bool enabled; int irq; }; @@ -1007,7 +1008,7 @@ static void dsi_wait4video_eng_busy(struct msm_dsi_host *msm_host) if (!(msm_host->mode_flags & MIPI_DSI_MODE_VIDEO)) return; - if (msm_host->power_on) { + if (msm_host->power_on && msm_host->enabled) { dsi_wait4video_done(msm_host); /* delay 4 ms to skip BLLP */ usleep_range(2000, 4000); @@ -2209,7 +2210,7 @@ int msm_dsi_host_enable(struct mipi_dsi_host *host) * pm_runtime_put_autosuspend(&msm_host->pdev->dev); * } */ - + msm_host->enabled = true; return 0; } @@ -2217,6 +2218,7 @@ int msm_dsi_host_disable(struct mipi_dsi_host *host) { struct msm_dsi_host *msm_host = to_msm_dsi_host(host); + msm_host->enabled = false; dsi_op_mode_config(msm_host, !!(msm_host->mode_flags & MIPI_DSI_MODE_VIDEO), false); |