diff options
| author | pdabade <pdabade@nvidia.com> | 2013-11-22 15:27:40 +0530 |
|---|---|---|
| committer | Pankaj Dabade <pdabade@nvidia.com> | 2013-11-24 23:31:22 -0800 |
| commit | daa27fb38f806c7d5fddc39e1d81613dc68c9874 (patch) | |
| tree | d400254677c287d934084a76c8b91590fc606ee6 /drivers/video/tegra/dc/hdmi.c | |
| parent | 417fc373ad33e6f7adc7836086307f2e93256eac (diff) | |
video: tegra: hdmi: check powergate status
Checking powergate status before dumping registers.
If power is gated, return quietly.
bug 1403057
Change-Id: I7791ede351b3f0ecec909f99d8ec279f33d37700
Signed-off-by: Pankaj Dabade <pdabade@nvidia.com>
Reviewed-on: http://git-master/r/333953
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Animesh Kishore <ankishore@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
Diffstat (limited to 'drivers/video/tegra/dc/hdmi.c')
| -rw-r--r-- | drivers/video/tegra/dc/hdmi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/video/tegra/dc/hdmi.c b/drivers/video/tegra/dc/hdmi.c index 8918ef55dad1..40db0ab73dd1 100644 --- a/drivers/video/tegra/dc/hdmi.c +++ b/drivers/video/tegra/dc/hdmi.c @@ -370,6 +370,10 @@ static int dbg_hdmi_show(struct seq_file *m, void *unused) { struct tegra_dc_hdmi_data *hdmi = m->private; + /* If gated quitely return */ + if (!tegra_dc_is_powered(hdmi->dc)) + return 0; + #define DUMP_REG(a) do { \ seq_printf(m, "%-32s\t%03x\t%08lx\n", \ #a, a, tegra_hdmi_readl(hdmi, a)); \ |