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Subject[PATCH 07/15] drm/panfrost: use device_property_present to check for OPP
Date
Instead of expecting an error from dev_pm_opp_of_add_table()
do a simple device_property_present() check.

Signed-off-by: Clément Péron <peron.clem@gmail.com>
---
drivers/gpu/drm/panfrost/panfrost_devfreq.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
index d9007f44b772..fce21c682414 100644
--- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c
+++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
@@ -96,15 +96,19 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
struct thermal_cooling_device *cooling;
struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;

- ret = dev_pm_opp_of_add_table(dev);
- if (ret == -ENODEV) /* Optional, continue without devfreq */
+ if (!device_property_present(dev, "operating-points-v2"))
+ /* Optional, continue without devfreq */
return 0;
- else if (ret)
- return ret;
- pfdevfreq->opp_of_table_added = true;

spin_lock_init(&pfdevfreq->lock);

+ ret = dev_pm_opp_of_add_table(dev);
+ if (ret) {
+ DRM_DEV_ERROR(dev, "Couldn't add OPP table\n");
+ goto err_fini;
+ }
+ pfdevfreq->opp_of_table_added = true;
+
panfrost_devfreq_reset(pfdevfreq);

cur_freq = clk_get_rate(pfdev->clock);
--
2.20.1
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