drivers/gpu/drm/msm/hdmi/hdmi_phy_8960.c

   1 /*
   2  * Copyright (C) 2013 Red Hat
   3  * Author: Rob Clark <robdclark@gmail.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 as published by
   7  * the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include "hdmi.h"
  19
  20 static void hdmi_phy_8960_powerup(struct hdmi_phy *phy,
  21                                   unsigned long int pixclock)
  22 {
  23         DBG("pixclock: %lu", pixclock);
  24
  25         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG2, 0x00);
  26         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG0, 0x1b);
  27         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG1, 0xf2);
  28         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG4, 0x00);
  29         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG5, 0x00);
  30         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG6, 0x00);
  31         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG7, 0x00);
  32         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG8, 0x00);
  33         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG9, 0x00);
  34         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG10, 0x00);
  35         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG11, 0x00);
  36         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG3, 0x20);
  37 }
  38
  39 static void hdmi_phy_8960_powerdown(struct hdmi_phy *phy)
  40 {
  41         DBG("");
  42
  43         hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG2, 0x7f);
  44 }
  45
  46 static const char * const hdmi_phy_8960_reg_names[] = {
  47         "core-vdda",
  48 };
  49
  50 static const char * const hdmi_phy_8960_clk_names[] = {
  51         "slave_iface",
  52 };
  53
  54 const struct hdmi_phy_cfg msm_hdmi_phy_8960_cfg = {
  55         .type = MSM_HDMI_PHY_8960,
  56         .powerup = hdmi_phy_8960_powerup,
  57         .powerdown = hdmi_phy_8960_powerdown,
  58         .reg_names = hdmi_phy_8960_reg_names,
  59         .num_regs = ARRAY_SIZE(hdmi_phy_8960_reg_names),
  60         .clk_names = hdmi_phy_8960_clk_names,
  61         .num_clks = ARRAY_SIZE(hdmi_phy_8960_clk_names),
  62 };