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gpu: nvgpu: abstract dt functions

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Added nvgpu_dt_read_u32_index() for now.

Jira VFND-4870

Change-Id: I3e51c408dfba3864372c515ba5d2c77708a489c8
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1683008
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Richard Zhao
2018-03-27 11:28:09 -07:00
committed by mobile promotions
parent ca0e1c03e9
commit 4d94b32d01
3 changed files with 58 additions and 0 deletions
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1
drivers/gpu/nvgpu/Makefile
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@@ -62,6 +62,7 @@ nvgpu-y += \
common/linux/sim_pci.o \
common/linux/os_sched.o \
common/linux/nvlink.o \
common/linux/dt.o \
common/mm/nvgpu_allocator.o \
common/mm/bitmap_allocator.o \
common/mm/buddy_allocator.o \

29
drivers/gpu/nvgpu/common/linux/dt.c Normal file
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@@ -0,0 +1,29 @@
/*
* Copyright (c) 2018, 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,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <nvgpu/dt.h>
#include <linux/of.h>
#include "os_linux.h"
int nvgpu_dt_read_u32_index(struct gk20a *g, const char *name,
u32 index, u32 *value)
{
struct device *dev = dev_from_gk20a(g);
struct device_node *np = dev->of_node;
return of_property_read_u32_index(np, name, index, value);
}

28
drivers/gpu/nvgpu/include/nvgpu/dt.h Normal file
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@@ -0,0 +1,28 @@
/*
* Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <nvgpu/types.h>
struct gk20a;
int nvgpu_dt_read_u32_index(struct gk20a *g, const char *name,
u32 index, u32 *value);