drivers/gpu/arm/midgard/platform/rk/mali_kbase_config_rk.c

   1 /*
   2  *
   3  * (C) COPYRIGHT ARM Limited. All rights reserved.
   4  *
   5  * This program is free software and is provided to you under the terms of the
   6  * GNU General Public License version 2 as published by the Free Software
   7  * Foundation, and any use by you of this program is subject to the terms
   8  * of such GNU licence.
   9  */
  10
  11 #define ENABLE_DEBUG_LOG
  12 #include "custom_log.h"
  13
  14 #include <mali_kbase.h>
  15 #include <mali_kbase_defs.h>
  16 #include <mali_kbase_config.h>
  17
  18 #include <linux/pm_runtime.h>
  19 #include <linux/suspend.h>
  20
  21 /**
  22  * @file mali_kbase_config_rk.c
  23  * 对 platform_config_of_rk 的具体实现.
  24  *
  25  * mali_device_driver 包含两部分 :
  26  *      .DP : platform_dependent_part_in_mdd :
  27  *              依赖 platform 部分,
  28  *              源码在 <mdd_src_dir>/platform/<platform_name>/
  29  *              在 mali_device_driver 内部,
  30  *                      记为 platform_dependent_part,
  31  *                      也被记为 platform_specific_code.
  32  *      .DP : common_parts_in_mdd :
  33  *              arm 实现的通用的部分,
  34  *              源码在 <mdd_src_dir>/ 下.
  35  *              在 mali_device_driver 内部, 记为 common_parts.
  36  */
  37
  38 /*---------------------------------------------------------------------------*/
  39
  40 int kbase_platform_rk_init(struct kbase_device *kbdev)
  41 {
  42         return 0;
  43 }
  44
  45 void kbase_platform_rk_term(struct kbase_device *kbdev)
  46 {
  47 }
  48
  49 struct kbase_platform_funcs_conf platform_funcs = {
  50         .platform_init_func = &kbase_platform_rk_init,
  51         .platform_term_func = &kbase_platform_rk_term,
  52 };
  53
  54 /*---------------------------------------------------------------------------*/
  55
  56 static int pm_callback_power_on(struct kbase_device *kbdev)
  57 {
  58         return 0;
  59 }
  60
  61 static void pm_callback_power_off(struct kbase_device *kbdev)
  62 {
  63 }
  64
  65 int kbase_device_runtime_init(struct kbase_device *kbdev)
  66 {
  67         return 0;
  68 }
  69
  70 void kbase_device_runtime_disable(struct kbase_device *kbdev)
  71 {
  72 }
  73
  74 static int pm_callback_runtime_on(struct kbase_device *kbdev)
  75 {
  76         return 0;
  77 }
  78
  79 static void pm_callback_runtime_off(struct kbase_device *kbdev)
  80 {
  81 }
  82
  83 struct kbase_pm_callback_conf pm_callbacks = {
  84         .power_on_callback =  pm_callback_power_on,
  85         .power_off_callback = pm_callback_power_off,
  86 #ifdef CONFIG_PM
  87         .power_runtime_init_callback = kbase_device_runtime_init,
  88         .power_runtime_term_callback = kbase_device_runtime_disable,
  89         .power_runtime_on_callback = pm_callback_runtime_on,
  90         .power_runtime_off_callback = pm_callback_runtime_off,
  91 #else                           /* CONFIG_PM */
  92         .power_runtime_init_callback = NULL,
  93         .power_runtime_term_callback = NULL,
  94         .power_runtime_on_callback = NULL,
  95         .power_runtime_off_callback = NULL,
  96
  97 #endif                          /* CONFIG_PM */
  98 };
  99
 100 int kbase_platform_early_init(void)
 101 {
 102         /* Nothing needed at this stage */
 103         return 0;
 104 }
 105