Patch "drm/panfrost: move devfreq_init()/fini() in device" has been added to the 5.9-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    drm/panfrost: move devfreq_init()/fini() in device

to the 5.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-panfrost-move-devfreq_init-fini-in-device.patch
and it can be found in the queue-5.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 6ad41a41c6f760cc18a411a3ce534e177d895c09
Author: Clément Péron <peron.clem@xxxxxxxxx>
Date:   Fri Jul 10 11:54:03 2020 +0200

    drm/panfrost: move devfreq_init()/fini() in device
    
    [ Upstream commit 25e247bbf85af3ad721dfeb2e2caf405f43b7e66 ]
    
    Later we will introduce devfreq probing regulator if they
    are present. As regulator should be probe only one time we
    need to get this logic in the device_init().
    
    panfrost_device is already taking care of devfreq_resume()
    and devfreq_suspend(), so it's not totally illogic to move
    the devfreq_init() and devfreq_fini() here.
    
    Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@xxxxxxxxxxxxx>
    Reviewed-by: Steven Price <steven.price@xxxxxxx>
    Signed-off-by: Clément Péron <peron.clem@xxxxxxxxx>
    Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
    Link: https://patchwork.freedesktop.org/patch/msgid/20200710095409.407087-9-peron.clem@xxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/panfrost/panfrost_device.c b/drivers/gpu/drm/panfrost/panfrost_device.c
index 9f89984f652a6..36b5c8fea3eba 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.c
+++ b/drivers/gpu/drm/panfrost/panfrost_device.c
@@ -214,9 +214,16 @@ int panfrost_device_init(struct panfrost_device *pfdev)
 		return err;
 	}
 
+	err = panfrost_devfreq_init(pfdev);
+	if (err) {
+		if (err != -EPROBE_DEFER)
+			dev_err(pfdev->dev, "devfreq init failed %d\n", err);
+		goto out_clk;
+	}
+
 	err = panfrost_regulator_init(pfdev);
 	if (err)
-		goto out_clk;
+		goto out_devfreq;
 
 	err = panfrost_reset_init(pfdev);
 	if (err) {
@@ -265,6 +272,8 @@ out_reset:
 	panfrost_reset_fini(pfdev);
 out_regulator:
 	panfrost_regulator_fini(pfdev);
+out_devfreq:
+	panfrost_devfreq_fini(pfdev);
 out_clk:
 	panfrost_clk_fini(pfdev);
 	return err;
@@ -278,6 +287,7 @@ void panfrost_device_fini(struct panfrost_device *pfdev)
 	panfrost_gpu_fini(pfdev);
 	panfrost_pm_domain_fini(pfdev);
 	panfrost_reset_fini(pfdev);
+	panfrost_devfreq_fini(pfdev);
 	panfrost_regulator_fini(pfdev);
 	panfrost_clk_fini(pfdev);
 }
diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c
index f6d5d03201fad..f2dd259f28995 100644
--- a/drivers/gpu/drm/panfrost/panfrost_drv.c
+++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
@@ -14,7 +14,6 @@
 #include <drm/drm_utils.h>
 
 #include "panfrost_device.h"
-#include "panfrost_devfreq.h"
 #include "panfrost_gem.h"
 #include "panfrost_mmu.h"
 #include "panfrost_job.h"
@@ -606,13 +605,6 @@ static int panfrost_probe(struct platform_device *pdev)
 		goto err_out0;
 	}
 
-	err = panfrost_devfreq_init(pfdev);
-	if (err) {
-		if (err != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Fatal error during devfreq init\n");
-		goto err_out1;
-	}
-
 	pm_runtime_set_active(pfdev->dev);
 	pm_runtime_mark_last_busy(pfdev->dev);
 	pm_runtime_enable(pfdev->dev);
@@ -625,16 +617,14 @@ static int panfrost_probe(struct platform_device *pdev)
 	 */
 	err = drm_dev_register(ddev, 0);
 	if (err < 0)
-		goto err_out2;
+		goto err_out1;
 
 	panfrost_gem_shrinker_init(ddev);
 
 	return 0;
 
-err_out2:
-	pm_runtime_disable(pfdev->dev);
-	panfrost_devfreq_fini(pfdev);
 err_out1:
+	pm_runtime_disable(pfdev->dev);
 	panfrost_device_fini(pfdev);
 err_out0:
 	drm_dev_put(ddev);
@@ -650,7 +640,6 @@ static int panfrost_remove(struct platform_device *pdev)
 	panfrost_gem_shrinker_cleanup(ddev);
 
 	pm_runtime_get_sync(pfdev->dev);
-	panfrost_devfreq_fini(pfdev);
 	panfrost_device_fini(pfdev);
 	pm_runtime_put_sync_suspend(pfdev->dev);
 	pm_runtime_disable(pfdev->dev);