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drm/tidss: Use PM autosuspend

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Use runtime PM autosuspend feature, with 1s timeout, to avoid
unnecessary suspend-resume cycles when, e.g. the userspace temporarily
turns off the crtcs when configuring the outputs.

Reviewed-by: Aradhya Bhatia <a-bhatia1@ti.com>
Link: https://lore.kernel.org/r/20231109-tidss-probe-v2-2-ac91b5ea35c0@ideasonboard.com
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
This commit is contained in:
Tomi Valkeinen 2023-11-09 09:37:55 +02:00
parent a0a9e7b469
commit 4b0bdf9383
1 changed files with 8 additions and 1 deletions
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9
drivers/gpu/drm/tidss/tidss_drv.c
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@ -43,7 +43,9 @@ void tidss_runtime_put(struct tidss_device *tidss)
dev_dbg(tidss->dev, "%s\n", __func__);
r = pm_runtime_put_sync(tidss->dev);
pm_runtime_mark_last_busy(tidss->dev);
r = pm_runtime_put_autosuspend(tidss->dev);
WARN_ON(r < 0);
}
@ -144,6 +146,9 @@ static int tidss_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
pm_runtime_set_autosuspend_delay(dev, 1000);
pm_runtime_use_autosuspend(dev);
#ifndef CONFIG_PM
/* If we don't have PM, we need to call resume manually */
dispc_runtime_resume(tidss->dispc);
@ -192,6 +197,7 @@ static int tidss_probe(struct platform_device *pdev)
#ifndef CONFIG_PM
dispc_runtime_suspend(tidss->dispc);
#endif
pm_runtime_dont_use_autosuspend(dev);
pm_runtime_disable(dev);
return ret;
@ -215,6 +221,7 @@ static void tidss_remove(struct platform_device *pdev)
/* If we don't have PM, we need to call suspend manually */
dispc_runtime_suspend(tidss->dispc);
#endif
pm_runtime_dont_use_autosuspend(dev);
pm_runtime_disable(dev);
/* devm allocated dispc goes away with the dev so mark it NULL */