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drm/panfrost: Add missing OPP table refcnt decremental 

Commit f11b0417ee ("drm/panfrost: Add fdinfo support GPU load metrics")
retrieves the OPP for the maximum device clock frequency, but forgets to
keep the reference count balanced by putting the returned OPP object. This
eventually leads to an OPP core warning when removing the device.

Fix it by putting OPP objects as many times as they're retrieved.

Also remove an unnecessary whitespace.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Fixes: f11b0417ee ("drm/panfrost: Add fdinfo support GPU load metrics")
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241105205458.1318989-1-adrian.larumbe@collabora.com
pull/1083/head
Adrián Larumbe 2024-11-05 20:54:55 +00:00 committed by Steven Price
parent aadcf58458
commit 043e8afebf
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/panfrost/panfrost_devfreq.c
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@ -38,7 +38,7 @@ static int panfrost_devfreq_target(struct device *dev, unsigned long *freq,
return PTR_ERR(opp);
dev_pm_opp_put(opp);
err = dev_pm_opp_set_rate(dev, *freq);
err = dev_pm_opp_set_rate(dev, *freq);
if (!err)
ptdev->pfdevfreq.current_frequency = *freq;
@ -182,6 +182,7 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
* if any and will avoid a switch off by regulator_late_cleanup()
*/
ret = dev_pm_opp_set_opp(dev, opp);
dev_pm_opp_put(opp);
if (ret) {
DRM_DEV_ERROR(dev, "Couldn't set recommended OPP\n");
return ret;