xref: /linux/drivers/gpu/drm/msm/hdmi/hdmi_phy_8960.c (revision be709d48329a500621d2a05835283150ae137b45)
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 };
63