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drm/bridge: anx7625: add suspend / resume hooks 

Add suspend / resume hooks for anx7625 driver, that power off the device
on suspend and power on the device on resume if it was previously
powered.

Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210517063553.554955-2-pihsun@chromium.org
This commit is contained in:
Pi-Hsun Shih 2021-05-17 14:35:29 +08:00 committed by Robert Foss
parent 60487584a7
commit 409776fa3c
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GPG Key ID: 3EFD900F76D1D784
1 changed files with 32 additions and 0 deletions
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32
drivers/gpu/drm/bridge/analogix/anx7625.c
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@ -1705,7 +1705,39 @@ static int __maybe_unused anx7625_runtime_pm_resume(struct device *dev)
return 0;
}
static int __maybe_unused anx7625_resume(struct device *dev)
{
struct anx7625_data *ctx = dev_get_drvdata(dev);
if (!ctx->pdata.intp_irq)
return 0;
if (!pm_runtime_enabled(dev) || !pm_runtime_suspended(dev)) {
enable_irq(ctx->pdata.intp_irq);
anx7625_runtime_pm_resume(dev);
}
return 0;
}
static int __maybe_unused anx7625_suspend(struct device *dev)
{
struct anx7625_data *ctx = dev_get_drvdata(dev);
if (!ctx->pdata.intp_irq)
return 0;
if (!pm_runtime_enabled(dev) || !pm_runtime_suspended(dev)) {
anx7625_runtime_pm_suspend(dev);
disable_irq(ctx->pdata.intp_irq);
flush_workqueue(ctx->workqueue);
}
return 0;
}
static const struct dev_pm_ops anx7625_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(anx7625_suspend, anx7625_resume)
SET_RUNTIME_PM_OPS(anx7625_runtime_pm_suspend,
anx7625_runtime_pm_resume, NULL)
};