drivers/gpu/drm/nouveau/dispnv50/dac507d.c

   1 /*
   2  * Copyright 2018 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22 #include "core.h"
  23
  24 #include <nvif/push507c.h>
  25
  26 #include <nvhw/class/cl507d.h>
  27
  28 static int
  29 dac507d_ctrl(struct nv50_core *core, int or, u32 ctrl,
  30              struct nv50_head_atom *asyh)
  31 {
  32         struct nvif_push *push = core->chan.push;
  33         u32 sync = 0;
  34         int ret;
  35
  36         if (asyh) {
  37                 sync |= NVVAL(NV507D, DAC_SET_POLARITY, HSYNC, asyh->or.nhsync);
  38                 sync |= NVVAL(NV507D, DAC_SET_POLARITY, VSYNC, asyh->or.nvsync);
  39         }
  40
  41         if ((ret = PUSH_WAIT(push, 3)))
  42                 return ret;
  43
  44         PUSH_MTHD(push, NV507D, DAC_SET_CONTROL(or), ctrl,
  45                                 DAC_SET_POLARITY(or), sync);
  46         return 0;
  47 }
  48
  49 const struct nv50_outp_func
  50 dac507d = {
  51         .ctrl = dac507d_ctrl,
  52 };