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gpu: nvgpu: support reset_control API

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Bug 200137963

Change-Id: I3197af905c945540b97ba191e5695d970d77af8e
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/797154
(cherry picked from commit 8a50245ea636deb87a3d9435fb115b4eac88fac9)
Reviewed-on: http://git-master/r/808247
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Deepak Nibade
2015-09-10 18:05:21 +05:30
committed by Terje Bergstrom
parent c6b8f46f6d
commit ed0737ab60
2 changed files with 9 additions and 1 deletions
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5
drivers/gpu/nvgpu/gk20a/gk20a.c
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@@ -40,6 +40,7 @@
#include <linux/clk/tegra.h>
#include <linux/kthread.h>
#include <linux/platform/tegra/common.h>
#include <linux/reset.h>
#include <linux/sched.h>
@@ -1298,6 +1299,10 @@ static int gk20a_pm_init(struct platform_device *dev)
if (IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS))
err = gk20a_pm_initialise_domain(dev);
platform->reset_control = devm_reset_control_get(&dev->dev, NULL);
if (IS_ERR(platform->reset_control))
platform->reset_control = NULL;
return err;
}

5
drivers/gpu/nvgpu/gk20a/platform_gk20a.h
View File

@@ -3,7 +3,7 @@
*
* GK20A Platform (SoC) Interface
*
* Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -55,6 +55,9 @@ struct gk20a_platform {
struct clk *clk[3];
int num_clks;
/* Reset control for device */
struct reset_control *reset_control;
/* Delay before rail gated */
int railgate_delay;