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| author | Thierry Reding <treding@nvidia.com> | 2019-12-03 19:29:57 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2020-01-10 18:46:29 +0300 |
| commit | 271502efbd3a9812f3d02230ff823b73141c6b39 (patch) | |
| tree | 810b78bb104c04600144e943402e474b0e4a3765 /drivers/gpu/drm/tegra/output.c | |
| parent | f90965abc51d9a72cd6fa414e9480edff9ddaced (diff) | |
| download | linux-271502efbd3a9812f3d02230ff823b73141c6b39.tar.xz | |
drm/tegra: output: Implement system suspend/resume
Implement generic system suspend/resume functions that can be used with
any output type. Currently this only implements disabling and enabling
of the IRQ functionality across system suspend/resume. This prevents an
interrupt from happening before the display driver has fully resumed.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra/output.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/output.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c index 34373734ff68..57203030dd02 100644 --- a/drivers/gpu/drm/tegra/output.c +++ b/drivers/gpu/drm/tegra/output.c @@ -250,3 +250,19 @@ void tegra_output_find_possible_crtcs(struct tegra_output *output, output->encoder.possible_crtcs = mask; } + +int tegra_output_suspend(struct tegra_output *output) +{ + if (output->hpd_irq) + disable_irq(output->hpd_irq); + + return 0; +} + +int tegra_output_resume(struct tegra_output *output) +{ + if (output->hpd_irq) + enable_irq(output->hpd_irq); + + return 0; +} |