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kernel/linux-rt-4.4.41/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gm107.c 2.39 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright 2014 Martin Peres
   *
   * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
   *
   * Authors: Martin Peres
   */
  #include "priv.h"
  
  static int
  gm107_fan_pwm_ctrl(struct nvkm_therm *therm, int line, bool enable)
  {
  	/* nothing to do, it seems hardwired */
  	return 0;
  }
  
  static int
  gm107_fan_pwm_get(struct nvkm_therm *therm, int line, u32 *divs, u32 *duty)
  {
  	struct nvkm_device *device = therm->subdev.device;
  	*divs = nvkm_rd32(device, 0x10eb20) & 0x1fff;
  	*duty = nvkm_rd32(device, 0x10eb24) & 0x1fff;
  	return 0;
  }
  
  static int
  gm107_fan_pwm_set(struct nvkm_therm *therm, int line, u32 divs, u32 duty)
  {
  	struct nvkm_device *device = therm->subdev.device;
  	nvkm_mask(device, 0x10eb10, 0x1fff, divs); /* keep the high bits */
  	nvkm_wr32(device, 0x10eb14, duty | 0x80000000);
  	return 0;
  }
  
  static int
  gm107_fan_pwm_clock(struct nvkm_therm *therm, int line)
  {
  	return therm->subdev.device->crystal * 1000;
  }
  
  static const struct nvkm_therm_func
  gm107_therm = {
  	.init = gf119_therm_init,
  	.fini = g84_therm_fini,
  	.pwm_ctrl = gm107_fan_pwm_ctrl,
  	.pwm_get = gm107_fan_pwm_get,
  	.pwm_set = gm107_fan_pwm_set,
  	.pwm_clock = gm107_fan_pwm_clock,
  	.temp_get = g84_temp_get,
  	.fan_sense = gt215_therm_fan_sense,
  	.program_alarms = nvkm_therm_program_alarms_polling,
  };
  
  int
  gm107_therm_new(struct nvkm_device *device, int index,
  		struct nvkm_therm **ptherm)
  {
  	return nvkm_therm_new_(&gm107_therm, device, index, ptherm);
  }