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linux/drivers/video/omap2/dss/hdmi.c
Mythri P K 38863b7e1d OMAP4: DSS2: HDMI: Use specific HDMI timings structure 
As hdmi has few additional parameters such as vsync and hsync
polarity which is missing in DSS timing structure, define HDMI timings
structure for hdmi to use instead of OMAP DSS timing structure.

Signed-off-by: Mythri P K <mythripk@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:31 +03:00

1930 lines
53 KiB
C
Raw Blame History

/*
* hdmi.c
*
* HDMI interface DSS driver setting for TI's OMAP4 family of processor.
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
* Authors: Yong Zhi
* Mythri pk <mythripk@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define DSS_SUBSYS_NAME "HDMI"
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/mutex.h>
#include <linux/delay.h>
#include <linux/string.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/clk.h>
#include <video/omapdss.h>
#if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
#include <sound/soc.h>
#include <sound/pcm_params.h>
#endif
#include "dss.h"
#include "hdmi.h"
#include "dss_features.h"
#define HDMI_WP 0x0
#define HDMI_CORE_SYS 0x400
#define HDMI_CORE_AV 0x900
#define HDMI_PLLCTRL 0x200
#define HDMI_PHY 0x300
static struct {
struct mutex lock;
struct omap_display_platform_data *pdata;
struct platform_device *pdev;
struct hdmi_ip_data ip_data;
int code;
int mode;
u8 edid[HDMI_EDID_MAX_LENGTH];
u8 edid_set;
bool custom_set;
struct clk *sys_clk;
} hdmi;
/*
* Logic for the below structure :
* user enters the CEA or VESA timings by specifying the HDMI/DVI code.
* There is a correspondence between CEA/VESA timing and code, please
* refer to section 6.3 in HDMI 1.3 specification for timing code.
*
* In the below structure, cea_vesa_timings corresponds to all OMAP4
* supported CEA and VESA timing values.code_cea corresponds to the CEA
* code, It is used to get the timing from cea_vesa_timing array.Similarly
* with code_vesa. Code_index is used for back mapping, that is once EDID
* is read from the TV, EDID is parsed to find the timing values and then
* map it to corresponding CEA or VESA index.
*/
static const struct hdmi_timings cea_vesa_timings[OMAP_HDMI_TIMINGS_NB] = {
{ {640, 480, 25200, 96, 16, 48, 2, 10, 33} , 0 , 0},
{ {1280, 720, 74250, 40, 440, 220, 5, 5, 20}, 1, 1},
{ {1280, 720, 74250, 40, 110, 220, 5, 5, 20}, 1, 1},
{ {720, 480, 27027, 62, 16, 60, 6, 9, 30}, 0, 0},
{ {2880, 576, 108000, 256, 48, 272, 5, 5, 39}, 0, 0},
{ {1440, 240, 27027, 124, 38, 114, 3, 4, 15}, 0, 0},
{ {1440, 288, 27000, 126, 24, 138, 3, 2, 19}, 0, 0},
{ {1920, 540, 74250, 44, 528, 148, 5, 2, 15}, 1, 1},
{ {1920, 540, 74250, 44, 88, 148, 5, 2, 15}, 1, 1},
{ {1920, 1080, 148500, 44, 88, 148, 5, 4, 36}, 1, 1},
{ {720, 576, 27000, 64, 12, 68, 5, 5, 39}, 0, 0},
{ {1440, 576, 54000, 128, 24, 136, 5, 5, 39}, 0, 0},
{ {1920, 1080, 148500, 44, 528, 148, 5, 4, 36}, 1, 1},
{ {2880, 480, 108108, 248, 64, 240, 6, 9, 30}, 0, 0},
{ {1920, 1080, 74250, 44, 638, 148, 5, 4, 36}, 1, 1},
/* VESA From Here */
{ {640, 480, 25175, 96, 16, 48, 2 , 11, 31}, 0, 0},
{ {800, 600, 40000, 128, 40, 88, 4 , 1, 23}, 1, 1},
{ {848, 480, 33750, 112, 16, 112, 8 , 6, 23}, 1, 1},
{ {1280, 768, 79500, 128, 64, 192, 7 , 3, 20}, 1, 0},
{ {1280, 800, 83500, 128, 72, 200, 6 , 3, 22}, 1, 0},
{ {1360, 768, 85500, 112, 64, 256, 6 , 3, 18}, 1, 1},
{ {1280, 960, 108000, 112, 96, 312, 3 , 1, 36}, 1, 1},
{ {1280, 1024, 108000, 112, 48, 248, 3 , 1, 38}, 1, 1},
{ {1024, 768, 65000, 136, 24, 160, 6, 3, 29}, 0, 0},
{ {1400, 1050, 121750, 144, 88, 232, 4, 3, 32}, 1, 0},
{ {1440, 900, 106500, 152, 80, 232, 6, 3, 25}, 1, 0},
{ {1680, 1050, 146250, 176 , 104, 280, 6, 3, 30}, 1, 0},
{ {1366, 768, 85500, 143, 70, 213, 3, 3, 24}, 1, 1},
{ {1920, 1080, 148500, 44, 148, 80, 5, 4, 36}, 1, 1},
{ {1280, 768, 68250, 32, 48, 80, 7, 3, 12}, 0, 1},
{ {1400, 1050, 101000, 32, 48, 80, 4, 3, 23}, 0, 1},
{ {1680, 1050, 119000, 32, 48, 80, 6, 3, 21}, 0, 1},
{ {1280, 800, 79500, 32, 48, 80, 6, 3, 14}, 0, 1},
{ {1280, 720, 74250, 40, 110, 220, 5, 5, 20}, 1, 1}
};
/*
* This is a static mapping array which maps the timing values
* with corresponding CEA / VESA code
*/
static const int code_index[OMAP_HDMI_TIMINGS_NB] = {
1, 19, 4, 2, 37, 6, 21, 20, 5, 16, 17, 29, 31, 35, 32,
/* <--15 CEA 17--> vesa*/
4, 9, 0xE, 0x17, 0x1C, 0x27, 0x20, 0x23, 0x10, 0x2A,
0X2F, 0x3A, 0X51, 0X52, 0x16, 0x29, 0x39, 0x1B
};
/*
* This is reverse static mapping which maps the CEA / VESA code
* to the corresponding timing values
*/
static const int code_cea[39] = {
-1, 0, 3, 3, 2, 8, 5, 5, -1, -1,
-1, -1, -1, -1, -1, -1, 9, 10, 10, 1,
7, 6, 6, -1, -1, -1, -1, -1, -1, 11,
11, 12, 14, -1, -1, 13, 13, 4, 4
};
static const int code_vesa[85] = {
-1, -1, -1, -1, 15, -1, -1, -1, -1, 16,
-1, -1, -1, -1, 17, -1, 23, -1, -1, -1,
-1, -1, 29, 18, -1, -1, -1, 32, 19, -1,
-1, -1, 21, -1, -1, 22, -1, -1, -1, 20,
-1, 30, 24, -1, -1, -1, -1, 25, -1, -1,
-1, -1, -1, -1, -1, -1, -1, 31, 26, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, 27, 28, -1, 33};
static const u8 edid_header[8] = {0x0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0};
static inline void hdmi_write_reg(void __iomem *base_addr,
const struct hdmi_reg idx, u32 val)
{
__raw_writel(val, base_addr + idx.idx);
}
static inline u32 hdmi_read_reg(void __iomem *base_addr,
const struct hdmi_reg idx)
{
return __raw_readl(base_addr + idx.idx);
}
static inline void __iomem *hdmi_wp_base(struct hdmi_ip_data *ip_data)
{
return ip_data->base_wp;
}
static inline void __iomem *hdmi_phy_base(struct hdmi_ip_data *ip_data)
{
return ip_data->base_wp + ip_data->phy_offset;
}
static inline void __iomem *hdmi_pll_base(struct hdmi_ip_data *ip_data)
{
return ip_data->base_wp + ip_data->pll_offset;
}
static inline void __iomem *hdmi_av_base(struct hdmi_ip_data *ip_data)
{
return ip_data->base_wp + ip_data->core_av_offset;
}
static inline void __iomem *hdmi_core_sys_base(struct hdmi_ip_data *ip_data)
{
return ip_data->base_wp + ip_data->core_sys_offset;
}
static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
const struct hdmi_reg idx,
int b2, int b1, u32 val)
{
u32 t = 0;
while (val != REG_GET(base_addr, idx, b2, b1)) {
udelay(1);
if (t++ > 10000)
return !val;
}
return val;
}
static int hdmi_runtime_get(void)
{
int r;
DSSDBG("hdmi_runtime_get\n");
r = pm_runtime_get_sync(&hdmi.pdev->dev);
WARN_ON(r < 0);
return r < 0 ? r : 0;
}
static void hdmi_runtime_put(void)
{
int r;
DSSDBG("hdmi_runtime_put\n");
r = pm_runtime_put(&hdmi.pdev->dev);
WARN_ON(r < 0);
}
int hdmi_init_display(struct omap_dss_device *dssdev)
{
DSSDBG("init_display\n");
return 0;
}
static int hdmi_pll_init(struct hdmi_ip_data *ip_data)
{
u32 r;
void __iomem *pll_base = hdmi_pll_base(ip_data);
struct hdmi_pll_info *fmt = &ip_data->pll_data;
/* PLL start always use manual mode */
REG_FLD_MOD(pll_base, PLLCTRL_PLL_CONTROL, 0x0, 0, 0);
r = hdmi_read_reg(pll_base, PLLCTRL_CFG1);
r = FLD_MOD(r, fmt->regm, 20, 9); /* CFG1_PLL_REGM */
r = FLD_MOD(r, fmt->regn, 8, 1); /* CFG1_PLL_REGN */
hdmi_write_reg(pll_base, PLLCTRL_CFG1, r);
r = hdmi_read_reg(pll_base, PLLCTRL_CFG2);
r = FLD_MOD(r, 0x0, 12, 12); /* PLL_HIGHFREQ divide by 2 */
r = FLD_MOD(r, 0x1, 13, 13); /* PLL_REFEN */
r = FLD_MOD(r, 0x0, 14, 14); /* PHY_CLKINEN de-assert during locking */
r = FLD_MOD(r, fmt->refsel, 22, 21); /* REFSEL */
if (fmt->dcofreq) {
/* divider programming for frequency beyond 1000Mhz */
REG_FLD_MOD(pll_base, PLLCTRL_CFG3, fmt->regsd, 17, 10);
r = FLD_MOD(r, 0x4, 3, 1); /* 1000MHz and 2000MHz */
} else {
r = FLD_MOD(r, 0x2, 3, 1); /* 500MHz and 1000MHz */
}
hdmi_write_reg(pll_base, PLLCTRL_CFG2, r);
r = hdmi_read_reg(pll_base, PLLCTRL_CFG4);
r = FLD_MOD(r, fmt->regm2, 24, 18);
r = FLD_MOD(r, fmt->regmf, 17, 0);
hdmi_write_reg(pll_base, PLLCTRL_CFG4, r);
/* go now */
REG_FLD_MOD(pll_base, PLLCTRL_PLL_GO, 0x1, 0, 0);
/* wait for bit change */
if (hdmi_wait_for_bit_change(pll_base, PLLCTRL_PLL_GO,
0, 0, 1) != 1) {
DSSERR("PLL GO bit not set\n");
return -ETIMEDOUT;
}
/* Wait till the lock bit is set in PLL status */
if (hdmi_wait_for_bit_change(pll_base,
PLLCTRL_PLL_STATUS, 1, 1, 1) != 1) {
DSSWARN("cannot lock PLL\n");
DSSWARN("CFG1 0x%x\n",
hdmi_read_reg(pll_base, PLLCTRL_CFG1));
DSSWARN("CFG2 0x%x\n",
hdmi_read_reg(pll_base, PLLCTRL_CFG2));
DSSWARN("CFG4 0x%x\n",
hdmi_read_reg(pll_base, PLLCTRL_CFG4));
return -ETIMEDOUT;
}
DSSDBG("PLL locked!\n");
return 0;
}
/* PHY_PWR_CMD */
static int hdmi_set_phy_pwr(struct hdmi_ip_data *ip_data, enum hdmi_phy_pwr val)
{
/* Command for power control of HDMI PHY */
REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_PWR_CTRL, val, 7, 6);
/* Status of the power control of HDMI PHY */
if (hdmi_wait_for_bit_change(hdmi_wp_base(ip_data),
HDMI_WP_PWR_CTRL, 5, 4, val) != val) {
DSSERR("Failed to set PHY power mode to %d\n", val);
return -ETIMEDOUT;
}
return 0;
}
/* PLL_PWR_CMD */
int hdmi_set_pll_pwr(struct hdmi_ip_data *ip_data, enum hdmi_pll_pwr val)
{
/* Command for power control of HDMI PLL */
REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_PWR_CTRL, val, 3, 2);
/* wait till PHY_PWR_STATUS is set */
if (hdmi_wait_for_bit_change(hdmi_wp_base(ip_data), HDMI_WP_PWR_CTRL,
1, 0, val) != val) {
DSSERR("Failed to set PHY_PWR_STATUS\n");
return -ETIMEDOUT;
}
return 0;
}
static int hdmi_pll_reset(struct hdmi_ip_data *ip_data)
{
/* SYSRESET controlled by power FSM */
REG_FLD_MOD(hdmi_pll_base(ip_data), PLLCTRL_PLL_CONTROL, 0x0, 3, 3);
/* READ 0x0 reset is in progress */
if (hdmi_wait_for_bit_change(hdmi_pll_base(ip_data),
PLLCTRL_PLL_STATUS, 0, 0, 1) != 1) {
DSSERR("Failed to sysreset PLL\n");
return -ETIMEDOUT;
}
return 0;
}
static int hdmi_phy_init(struct hdmi_ip_data *ip_data)
{
u16 r = 0;
void __iomem *phy_base = hdmi_phy_base(ip_data);
r = hdmi_set_phy_pwr(ip_data, HDMI_PHYPWRCMD_LDOON);
if (r)
return r;
r = hdmi_set_phy_pwr(ip_data, HDMI_PHYPWRCMD_TXON);
if (r)
return r;
/*
* Read address 0 in order to get the SCP reset done completed
* Dummy access performed to make sure reset is done
*/
hdmi_read_reg(phy_base, HDMI_TXPHY_TX_CTRL);
/*
* Write to phy address 0 to configure the clock
* use HFBITCLK write HDMI_TXPHY_TX_CONTROL_FREQOUT field
*/
REG_FLD_MOD(phy_base, HDMI_TXPHY_TX_CTRL, 0x1, 31, 30);
/* Write to phy address 1 to start HDMI line (TXVALID and TMDSCLKEN) */
hdmi_write_reg(phy_base, HDMI_TXPHY_DIGITAL_CTRL, 0xF0000000);
/* Setup max LDO voltage */
REG_FLD_MOD(phy_base, HDMI_TXPHY_POWER_CTRL, 0xB, 3, 0);
/* Write to phy address 3 to change the polarity control */
REG_FLD_MOD(phy_base, HDMI_TXPHY_PAD_CFG_CTRL, 0x1, 27, 27);
return 0;
}
static int hdmi_pll_program(struct hdmi_ip_data *ip_data)
{
u16 r = 0;
r = hdmi_set_pll_pwr(ip_data, HDMI_PLLPWRCMD_ALLOFF);
if (r)
return r;
r = hdmi_set_pll_pwr(ip_data, HDMI_PLLPWRCMD_BOTHON_ALLCLKS);
if (r)
return r;
r = hdmi_pll_reset(ip_data);
if (r)
return r;
r = hdmi_pll_init(ip_data);
if (r)
return r;
return 0;
}
static void hdmi_phy_off(struct hdmi_ip_data *ip_data)
{
hdmi_set_phy_pwr(ip_data, HDMI_PHYPWRCMD_OFF);
}
static int hdmi_core_ddc_edid(struct hdmi_ip_data *ip_data,
u8 *pedid, int ext)
{
u32 i, j;
char checksum = 0;
u32 offset = 0;
void __iomem *core_sys_base = hdmi_core_sys_base(ip_data);
/* Turn on CLK for DDC */
REG_FLD_MOD(hdmi_av_base(ip_data), HDMI_CORE_AV_DPD, 0x7, 2, 0);
/*
* SW HACK : Without the Delay DDC(i2c bus) reads 0 values /
* right shifted values( The behavior is not consistent and seen only
* with some TV's)
*/
usleep_range(800, 1000);
if (!ext) {
/* Clk SCL Devices */
REG_FLD_MOD(core_sys_base, HDMI_CORE_DDC_CMD, 0xA, 3, 0);
/* HDMI_CORE_DDC_STATUS_IN_PROG */
if (hdmi_wait_for_bit_change(core_sys_base,
HDMI_CORE_DDC_STATUS, 4, 4, 0) != 0) {
DSSERR("Failed to program DDC\n");
return -ETIMEDOUT;
}
/* Clear FIFO */
REG_FLD_MOD(core_sys_base, HDMI_CORE_DDC_CMD, 0x9, 3, 0);
/* HDMI_CORE_DDC_STATUS_IN_PROG */
if (hdmi_wait_for_bit_change(core_sys_base,
HDMI_CORE_DDC_STATUS, 4, 4, 0) != 0) {
DSSERR("Failed to program DDC\n");
return -ETIMEDOUT;
}
} else {
if (ext % 2 != 0)
offset = 0x80;
}
/* Load Segment Address Register */
REG_FLD_MOD(core_sys_base, HDMI_CORE_DDC_SEGM, ext/2, 7, 0);
/* Load Slave Address Register */
REG_FLD_MOD(core_sys_base, HDMI_CORE_DDC_ADDR, 0xA0 >> 1, 7, 1);
/* Load Offset Address Register */
REG_FLD_MOD(core_sys_base, HDMI_CORE_DDC_OFFSET, offset, 7, 0);
/* Load Byte Count */
REG_FLD_MOD(core_sys_base, HDMI_CORE_DDC_COUNT1, 0x80, 7, 0);
REG_FLD_MOD(core_sys_base, HDMI_CORE_DDC_COUNT2, 0x0, 1, 0);
/* Set DDC_CMD */
if (ext)
REG_FLD_MOD(core_sys_base, HDMI_CORE_DDC_CMD, 0x4, 3, 0);
else
REG_FLD_MOD(core_sys_base, HDMI_CORE_DDC_CMD, 0x2, 3, 0);
/* HDMI_CORE_DDC_STATUS_BUS_LOW */
if (REG_GET(core_sys_base, HDMI_CORE_DDC_STATUS, 6, 6) == 1) {
DSSWARN("I2C Bus Low?\n");
return -EIO;
}
/* HDMI_CORE_DDC_STATUS_NO_ACK */
if (REG_GET(core_sys_base, HDMI_CORE_DDC_STATUS, 5, 5) == 1) {
DSSWARN("I2C No Ack\n");
return -EIO;
}
i = ext * 128;
j = 0;
while (((REG_GET(core_sys_base, HDMI_CORE_DDC_STATUS, 4, 4) == 1) ||
(REG_GET(core_sys_base,
HDMI_CORE_DDC_STATUS, 2, 2) == 0)) && j < 128) {
if (REG_GET(core_sys_base, HDMI_CORE_DDC_STATUS, 2, 2) == 0) {
/* FIFO not empty */
pedid[i++] = REG_GET(core_sys_base,
HDMI_CORE_DDC_DATA, 7, 0);
j++;
}
}
for (j = 0; j < 128; j++)
checksum += pedid[j];
if (checksum != 0) {
DSSERR("E-EDID checksum failed!!\n");
return -EIO;
}
return 0;
}
static int read_edid(struct hdmi_ip_data *ip_data, u8 *pedid, u16 max_length)
{
int r = 0, n = 0, i = 0;
int max_ext_blocks = (max_length / 128) - 1;
r = hdmi_core_ddc_edid(ip_data, pedid, 0);
if (r) {
return r;
} else {
n = pedid[0x7e];
/*
* README: need to comply with max_length set by the caller.
* Better implementation should be to allocate necessary
* memory to store EDID according to nb_block field found
* in first block
*/
if (n > max_ext_blocks)
n = max_ext_blocks;
for (i = 1; i <= n; i++) {
r = hdmi_core_ddc_edid(ip_data, pedid, i);
if (r)
return r;
}
}
return 0;
}
static void copy_hdmi_to_dss_timings(
const struct hdmi_video_timings *hdmi_timings,
struct omap_video_timings *timings)
{
timings->x_res = hdmi_timings->x_res;
timings->y_res = hdmi_timings->y_res;
timings->pixel_clock = hdmi_timings->pixel_clock;
timings->hbp = hdmi_timings->hbp;
timings->hfp = hdmi_timings->hfp;
timings->hsw = hdmi_timings->hsw;
timings->vbp = hdmi_timings->vbp;
timings->vfp = hdmi_timings->vfp;
timings->vsw = hdmi_timings->vsw;
}
static int get_timings_index(void)
{
int code;
if (hdmi.mode == 0)
code = code_vesa[hdmi.code];
else
code = code_cea[hdmi.code];
if (code == -1) {
/* HDMI code 4 corresponds to 640 * 480 VGA */
hdmi.code = 4;
/* DVI mode 1 corresponds to HDMI 0 to DVI */
hdmi.mode = HDMI_DVI;
code = code_vesa[hdmi.code];
}
return code;
}
static struct hdmi_cm hdmi_get_code(struct omap_video_timings *timing)
{
int i = 0, code = -1, temp_vsync = 0, temp_hsync = 0;
int timing_vsync = 0, timing_hsync = 0;
struct hdmi_video_timings temp;
struct hdmi_cm cm = {-1};
DSSDBG("hdmi_get_code\n");
for (i = 0; i < OMAP_HDMI_TIMINGS_NB; i++) {
temp = cea_vesa_timings[i].timings;
if ((temp.pixel_clock == timing->pixel_clock) &&
(temp.x_res == timing->x_res) &&
(temp.y_res == timing->y_res)) {
temp_hsync = temp.hfp + temp.hsw + temp.hbp;
timing_hsync = timing->hfp + timing->hsw + timing->hbp;
temp_vsync = temp.vfp + temp.vsw + temp.vbp;
timing_vsync = timing->vfp + timing->vsw + timing->vbp;
DSSDBG("temp_hsync = %d , temp_vsync = %d"
"timing_hsync = %d, timing_vsync = %d\n",
temp_hsync, temp_hsync,
timing_hsync, timing_vsync);
if ((temp_hsync == timing_hsync) &&
(temp_vsync == timing_vsync)) {
code = i;
cm.code = code_index[i];
if (code < 14)
cm.mode = HDMI_HDMI;
else
cm.mode = HDMI_DVI;
DSSDBG("Hdmi_code = %d mode = %d\n",
cm.code, cm.mode);
break;
}
}
}
return cm;
}
static void get_horz_vert_timing_info(int current_descriptor_addrs, u8 *edid ,
struct omap_video_timings *timings)
{
/* X and Y resolution */
timings->x_res = (((edid[current_descriptor_addrs + 4] & 0xF0) << 4) |
edid[current_descriptor_addrs + 2]);
timings->y_res = (((edid[current_descriptor_addrs + 7] & 0xF0) << 4) |
edid[current_descriptor_addrs + 5]);
timings->pixel_clock = ((edid[current_descriptor_addrs + 1] << 8) |
edid[current_descriptor_addrs]);
timings->pixel_clock = 10 * timings->pixel_clock;
/* HORIZONTAL FRONT PORCH */
timings->hfp = edid[current_descriptor_addrs + 8] |
((edid[current_descriptor_addrs + 11] & 0xc0) << 2);
/* HORIZONTAL SYNC WIDTH */
timings->hsw = edid[current_descriptor_addrs + 9] |
((edid[current_descriptor_addrs + 11] & 0x30) << 4);
/* HORIZONTAL BACK PORCH */
timings->hbp = (((edid[current_descriptor_addrs + 4] & 0x0F) << 8) |
edid[current_descriptor_addrs + 3]) -
(timings->hfp + timings->hsw);
/* VERTICAL FRONT PORCH */
timings->vfp = ((edid[current_descriptor_addrs + 10] & 0xF0) >> 4) |
((edid[current_descriptor_addrs + 11] & 0x0f) << 2);
/* VERTICAL SYNC WIDTH */
timings->vsw = (edid[current_descriptor_addrs + 10] & 0x0F) |
((edid[current_descriptor_addrs + 11] & 0x03) << 4);
/* VERTICAL BACK PORCH */
timings->vbp = (((edid[current_descriptor_addrs + 7] & 0x0F) << 8) |
edid[current_descriptor_addrs + 6]) -
(timings->vfp + timings->vsw);
}
/* Description : This function gets the resolution information from EDID */
static void get_edid_timing_data(u8 *edid)
{
u8 count;
u16 current_descriptor_addrs;
struct hdmi_cm cm;
struct omap_video_timings edid_timings;
/* search block 0, there are 4 DTDs arranged in priority order */
for (count = 0; count < EDID_SIZE_BLOCK0_TIMING_DESCRIPTOR; count++) {
current_descriptor_addrs =
EDID_DESCRIPTOR_BLOCK0_ADDRESS +
count * EDID_TIMING_DESCRIPTOR_SIZE;
get_horz_vert_timing_info(current_descriptor_addrs,
edid, &edid_timings);
cm = hdmi_get_code(&edid_timings);
DSSDBG("Block0[%d] value matches code = %d , mode = %d\n",
count, cm.code, cm.mode);
if (cm.code == -1) {
continue;
} else {
hdmi.code = cm.code;
hdmi.mode = cm.mode;
DSSDBG("code = %d , mode = %d\n",
hdmi.code, hdmi.mode);
return;
}
}
if (edid[0x7e] != 0x00) {
for (count = 0; count < EDID_SIZE_BLOCK1_TIMING_DESCRIPTOR;
count++) {
current_descriptor_addrs =
EDID_DESCRIPTOR_BLOCK1_ADDRESS +
count * EDID_TIMING_DESCRIPTOR_SIZE;
get_horz_vert_timing_info(current_descriptor_addrs,
edid, &edid_timings);
cm = hdmi_get_code(&edid_timings);
DSSDBG("Block1[%d] value matches code = %d, mode = %d",
count, cm.code, cm.mode);
if (cm.code == -1) {
continue;
} else {
hdmi.code = cm.code;
hdmi.mode = cm.mode;
DSSDBG("code = %d , mode = %d\n",
hdmi.code, hdmi.mode);
return;
}
}
}
DSSINFO("no valid timing found , falling back to VGA\n");
hdmi.code = 4; /* setting default value of 640 480 VGA */
hdmi.mode = HDMI_DVI;
}
static void hdmi_read_edid(struct omap_video_timings *dp)
{
int ret = 0, code;
memset(hdmi.edid, 0, HDMI_EDID_MAX_LENGTH);
if (!hdmi.edid_set)
ret = read_edid(&hdmi.ip_data, hdmi.edid,
HDMI_EDID_MAX_LENGTH);
if (!ret) {
if (!memcmp(hdmi.edid, edid_header, sizeof(edid_header))) {
/* search for timings of default resolution */
get_edid_timing_data(hdmi.edid);
hdmi.edid_set = true;
}
} else {
DSSWARN("failed to read E-EDID\n");
}
if (!hdmi.edid_set) {
DSSINFO("fallback to VGA\n");
hdmi.code = 4; /* setting default value of 640 480 VGA */
hdmi.mode = HDMI_DVI;
}
code = get_timings_index();
copy_hdmi_to_dss_timings(&cea_vesa_timings[code].timings, dp);
}
static void hdmi_core_init(struct hdmi_core_video_config *video_cfg,
struct hdmi_core_infoframe_avi *avi_cfg,
struct hdmi_core_packet_enable_repeat *repeat_cfg)
{
DSSDBG("Enter hdmi_core_init\n");
/* video core */
video_cfg->ip_bus_width = HDMI_INPUT_8BIT;
video_cfg->op_dither_truc = HDMI_OUTPUTTRUNCATION_8BIT;
video_cfg->deep_color_pkt = HDMI_DEEPCOLORPACKECTDISABLE;
video_cfg->pkt_mode = HDMI_PACKETMODERESERVEDVALUE;
video_cfg->hdmi_dvi = HDMI_DVI;
video_cfg->tclk_sel_clkmult = HDMI_FPLL10IDCK;
/* info frame */
avi_cfg->db1_format = 0;
avi_cfg->db1_active_info = 0;
avi_cfg->db1_bar_info_dv = 0;
avi_cfg->db1_scan_info = 0;
avi_cfg->db2_colorimetry = 0;
avi_cfg->db2_aspect_ratio = 0;
avi_cfg->db2_active_fmt_ar = 0;
avi_cfg->db3_itc = 0;
avi_cfg->db3_ec = 0;
avi_cfg->db3_q_range = 0;
avi_cfg->db3_nup_scaling = 0;
avi_cfg->db4_videocode = 0;
avi_cfg->db5_pixel_repeat = 0;
avi_cfg->db6_7_line_eoftop = 0 ;
avi_cfg->db8_9_line_sofbottom = 0;
avi_cfg->db10_11_pixel_eofleft = 0;
avi_cfg->db12_13_pixel_sofright = 0;
/* packet enable and repeat */
repeat_cfg->audio_pkt = 0;
repeat_cfg->audio_pkt_repeat = 0;
repeat_cfg->avi_infoframe = 0;
repeat_cfg->avi_infoframe_repeat = 0;
repeat_cfg->gen_cntrl_pkt = 0;
repeat_cfg->gen_cntrl_pkt_repeat = 0;
repeat_cfg->generic_pkt = 0;
repeat_cfg->generic_pkt_repeat = 0;
}
static void hdmi_core_powerdown_disable(struct hdmi_ip_data *ip_data)
{
DSSDBG("Enter hdmi_core_powerdown_disable\n");
REG_FLD_MOD(hdmi_core_sys_base(ip_data), HDMI_CORE_CTRL1, 0x0, 0, 0);
}
static void hdmi_core_swreset_release(struct hdmi_ip_data *ip_data)
{
DSSDBG("Enter hdmi_core_swreset_release\n");
REG_FLD_MOD(hdmi_core_sys_base(ip_data), HDMI_CORE_SYS_SRST, 0x0, 0, 0);
}
static void hdmi_core_swreset_assert(struct hdmi_ip_data *ip_data)
{
DSSDBG("Enter hdmi_core_swreset_assert\n");
REG_FLD_MOD(hdmi_core_sys_base(ip_data), HDMI_CORE_SYS_SRST, 0x1, 0, 0);
}
/* HDMI_CORE_VIDEO_CONFIG */
static void hdmi_core_video_config(struct hdmi_ip_data *ip_data,
struct hdmi_core_video_config *cfg)
{
u32 r = 0;
void __iomem *core_sys_base = hdmi_core_sys_base(ip_data);
/* sys_ctrl1 default configuration not tunable */
r = hdmi_read_reg(core_sys_base, HDMI_CORE_CTRL1);
r = FLD_MOD(r, HDMI_CORE_CTRL1_VEN_FOLLOWVSYNC, 5, 5);
r = FLD_MOD(r, HDMI_CORE_CTRL1_HEN_FOLLOWHSYNC, 4, 4);
r = FLD_MOD(r, HDMI_CORE_CTRL1_BSEL_24BITBUS, 2, 2);
r = FLD_MOD(r, HDMI_CORE_CTRL1_EDGE_RISINGEDGE, 1, 1);
hdmi_write_reg(core_sys_base, HDMI_CORE_CTRL1, r);
REG_FLD_MOD(core_sys_base,
HDMI_CORE_SYS_VID_ACEN, cfg->ip_bus_width, 7, 6);
/* Vid_Mode */
r = hdmi_read_reg(core_sys_base, HDMI_CORE_SYS_VID_MODE);
/* dither truncation configuration */
if (cfg->op_dither_truc > HDMI_OUTPUTTRUNCATION_12BIT) {
r = FLD_MOD(r, cfg->op_dither_truc - 3, 7, 6);
r = FLD_MOD(r, 1, 5, 5);
} else {
r = FLD_MOD(r, cfg->op_dither_truc, 7, 6);
r = FLD_MOD(r, 0, 5, 5);
}
hdmi_write_reg(core_sys_base, HDMI_CORE_SYS_VID_MODE, r);
/* HDMI_Ctrl */
r = hdmi_read_reg(hdmi_av_base(ip_data), HDMI_CORE_AV_HDMI_CTRL);
r = FLD_MOD(r, cfg->deep_color_pkt, 6, 6);
r = FLD_MOD(r, cfg->pkt_mode, 5, 3);
r = FLD_MOD(r, cfg->hdmi_dvi, 0, 0);
hdmi_write_reg(hdmi_av_base(ip_data), HDMI_CORE_AV_HDMI_CTRL, r);
/* TMDS_CTRL */
REG_FLD_MOD(core_sys_base,
HDMI_CORE_SYS_TMDS_CTRL, cfg->tclk_sel_clkmult, 6, 5);
}
static void hdmi_core_aux_infoframe_avi_config(struct hdmi_ip_data *ip_data,
struct hdmi_core_infoframe_avi info_avi)
{
u32 val;
char sum = 0, checksum = 0;
void __iomem *av_base = hdmi_av_base(ip_data);
sum += 0x82 + 0x002 + 0x00D;
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_TYPE, 0x082);
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_VERS, 0x002);
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_LEN, 0x00D);
val = (info_avi.db1_format << 5) |
(info_avi.db1_active_info << 4) |
(info_avi.db1_bar_info_dv << 2) |
(info_avi.db1_scan_info);
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(0), val);
sum += val;
val = (info_avi.db2_colorimetry << 6) |
(info_avi.db2_aspect_ratio << 4) |
(info_avi.db2_active_fmt_ar);
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(1), val);
sum += val;
val = (info_avi.db3_itc << 7) |
(info_avi.db3_ec << 4) |
(info_avi.db3_q_range << 2) |
(info_avi.db3_nup_scaling);
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(2), val);
sum += val;
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(3),
info_avi.db4_videocode);
sum += info_avi.db4_videocode;
val = info_avi.db5_pixel_repeat;
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(4), val);
sum += val;
val = info_avi.db6_7_line_eoftop & 0x00FF;
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(5), val);
sum += val;
val = ((info_avi.db6_7_line_eoftop >> 8) & 0x00FF);
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(6), val);
sum += val;
val = info_avi.db8_9_line_sofbottom & 0x00FF;
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(7), val);
sum += val;
val = ((info_avi.db8_9_line_sofbottom >> 8) & 0x00FF);
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(8), val);
sum += val;
val = info_avi.db10_11_pixel_eofleft & 0x00FF;
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(9), val);
sum += val;
val = ((info_avi.db10_11_pixel_eofleft >> 8) & 0x00FF);
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(10), val);
sum += val;
val = info_avi.db12_13_pixel_sofright & 0x00FF;
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(11), val);
sum += val;
val = ((info_avi.db12_13_pixel_sofright >> 8) & 0x00FF);
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(12), val);
sum += val;
checksum = 0x100 - sum;
hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_CHSUM, checksum);
}
static void hdmi_core_av_packet_config(struct hdmi_ip_data *ip_data,
struct hdmi_core_packet_enable_repeat repeat_cfg)
{
/* enable/repeat the infoframe */
hdmi_write_reg(hdmi_av_base(ip_data), HDMI_CORE_AV_PB_CTRL1,
(repeat_cfg.audio_pkt << 5) |
(repeat_cfg.audio_pkt_repeat << 4) |
(repeat_cfg.avi_infoframe << 1) |
(repeat_cfg.avi_infoframe_repeat));
/* enable/repeat the packet */
hdmi_write_reg(hdmi_av_base(ip_data), HDMI_CORE_AV_PB_CTRL2,
(repeat_cfg.gen_cntrl_pkt << 3) |
(repeat_cfg.gen_cntrl_pkt_repeat << 2) |
(repeat_cfg.generic_pkt << 1) |
(repeat_cfg.generic_pkt_repeat));
}
static void hdmi_wp_init(struct omap_video_timings *timings,
struct hdmi_video_format *video_fmt,
struct hdmi_video_interface *video_int)
{
DSSDBG("Enter hdmi_wp_init\n");
timings->hbp = 0;
timings->hfp = 0;
timings->hsw = 0;
timings->vbp = 0;
timings->vfp = 0;
timings->vsw = 0;
video_fmt->packing_mode = HDMI_PACK_10b_RGB_YUV444;
video_fmt->y_res = 0;
video_fmt->x_res = 0;
video_int->vsp = 0;
video_int->hsp = 0;
video_int->interlacing = 0;
video_int->tm = 0; /* HDMI_TIMING_SLAVE */
}
static void hdmi_wp_video_start(struct hdmi_ip_data *ip_data, bool start)
{
REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_CFG, start, 31, 31);
}
static void hdmi_wp_video_init_format(struct hdmi_video_format *video_fmt,
struct omap_video_timings *timings, struct hdmi_config *param)
{
DSSDBG("Enter hdmi_wp_video_init_format\n");
video_fmt->y_res = param->timings.timings.y_res;
video_fmt->x_res = param->timings.timings.x_res;
timings->hbp = param->timings.timings.hbp;
timings->hfp = param->timings.timings.hfp;
timings->hsw = param->timings.timings.hsw;
timings->vbp = param->timings.timings.vbp;
timings->vfp = param->timings.timings.vfp;
timings->vsw = param->timings.timings.vsw;
}
static void hdmi_wp_video_config_format(struct hdmi_ip_data *ip_data,
struct hdmi_video_format *video_fmt)
{
u32 l = 0;
REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_CFG,
video_fmt->packing_mode, 10, 8);
l |= FLD_VAL(video_fmt->y_res, 31, 16);
l |= FLD_VAL(video_fmt->x_res, 15, 0);
hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_SIZE, l);
}
static void hdmi_wp_video_config_interface(struct hdmi_ip_data *ip_data,
struct hdmi_video_interface *video_int)
{
u32 r;
DSSDBG("Enter hdmi_wp_video_config_interface\n");
r = hdmi_read_reg(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_CFG);
r = FLD_MOD(r, video_int->vsp, 7, 7);
r = FLD_MOD(r, video_int->hsp, 6, 6);
r = FLD_MOD(r, video_int->interlacing, 3, 3);
r = FLD_MOD(r, video_int->tm, 1, 0);
hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_CFG, r);
}
static void hdmi_wp_video_config_timing(struct hdmi_ip_data *ip_data,
struct omap_video_timings *timings)
{
u32 timing_h = 0;
u32 timing_v = 0;
DSSDBG("Enter hdmi_wp_video_config_timing\n");
timing_h |= FLD_VAL(timings->hbp, 31, 20);
timing_h |= FLD_VAL(timings->hfp, 19, 8);
timing_h |= FLD_VAL(timings->hsw, 7, 0);
hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_TIMING_H, timing_h);
timing_v |= FLD_VAL(timings->vbp, 31, 20);
timing_v |= FLD_VAL(timings->vfp, 19, 8);
timing_v |= FLD_VAL(timings->vsw, 7, 0);
hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_TIMING_V, timing_v);
}
static void hdmi_basic_configure(struct hdmi_ip_data *ip_data)
{
/* HDMI */
struct omap_video_timings video_timing;
struct hdmi_video_format video_format;
struct hdmi_video_interface video_interface;
/* HDMI core */
struct hdmi_core_infoframe_avi avi_cfg;
struct hdmi_core_video_config v_core_cfg;
struct hdmi_core_packet_enable_repeat repeat_cfg;
struct hdmi_config *cfg = &ip_data->cfg;
hdmi_wp_init(&video_timing, &video_format,
&video_interface);
hdmi_core_init(&v_core_cfg,
&avi_cfg,
&repeat_cfg);
hdmi_wp_video_init_format(&video_format, &video_timing, cfg);
hdmi_wp_video_config_timing(ip_data, &video_timing);
/* video config */
video_format.packing_mode = HDMI_PACK_24b_RGB_YUV444_YUV422;
hdmi_wp_video_config_format(ip_data, &video_format);
video_interface.vsp = cfg->timings.vsync_pol;
video_interface.hsp = cfg->timings.hsync_pol;
video_interface.interlacing = cfg->interlace;
video_interface.tm = 1 ; /* HDMI_TIMING_MASTER_24BIT */
hdmi_wp_video_config_interface(ip_data, &video_interface);
/*
* configure core video part
* set software reset in the core
*/
hdmi_core_swreset_assert(ip_data);
/* power down off */
hdmi_core_powerdown_disable(ip_data);
v_core_cfg.pkt_mode = HDMI_PACKETMODE24BITPERPIXEL;
v_core_cfg.hdmi_dvi = cfg->cm.mode;
hdmi_core_video_config(ip_data, &v_core_cfg);
/* release software reset in the core */
hdmi_core_swreset_release(ip_data);
/*
* configure packet
* info frame video see doc CEA861-D page 65
*/
avi_cfg.db1_format = HDMI_INFOFRAME_AVI_DB1Y_RGB;
avi_cfg.db1_active_info =
HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_OFF;
avi_cfg.db1_bar_info_dv = HDMI_INFOFRAME_AVI_DB1B_NO;
avi_cfg.db1_scan_info = HDMI_INFOFRAME_AVI_DB1S_0;
avi_cfg.db2_colorimetry = HDMI_INFOFRAME_AVI_DB2C_NO;
avi_cfg.db2_aspect_ratio = HDMI_INFOFRAME_AVI_DB2M_NO;
avi_cfg.db2_active_fmt_ar = HDMI_INFOFRAME_AVI_DB2R_SAME;
avi_cfg.db3_itc = HDMI_INFOFRAME_AVI_DB3ITC_NO;
avi_cfg.db3_ec = HDMI_INFOFRAME_AVI_DB3EC_XVYUV601;
avi_cfg.db3_q_range = HDMI_INFOFRAME_AVI_DB3Q_DEFAULT;
avi_cfg.db3_nup_scaling = HDMI_INFOFRAME_AVI_DB3SC_NO;
avi_cfg.db4_videocode = cfg->cm.code;
avi_cfg.db5_pixel_repeat = HDMI_INFOFRAME_AVI_DB5PR_NO;
avi_cfg.db6_7_line_eoftop = 0;
avi_cfg.db8_9_line_sofbottom = 0;
avi_cfg.db10_11_pixel_eofleft = 0;
avi_cfg.db12_13_pixel_sofright = 0;
hdmi_core_aux_infoframe_avi_config(ip_data, avi_cfg);
/* enable/repeat the infoframe */
repeat_cfg.avi_infoframe = HDMI_PACKETENABLE;
repeat_cfg.avi_infoframe_repeat = HDMI_PACKETREPEATON;
/* wakeup */
repeat_cfg.audio_pkt = HDMI_PACKETENABLE;
repeat_cfg.audio_pkt_repeat = HDMI_PACKETREPEATON;
hdmi_core_av_packet_config(ip_data, repeat_cfg);
}
static void update_hdmi_timings(struct hdmi_config *cfg,
struct omap_video_timings *timings, int code)
{
cfg->timings.timings.x_res = timings->x_res;
cfg->timings.timings.y_res = timings->y_res;
cfg->timings.timings.hbp = timings->hbp;
cfg->timings.timings.hfp = timings->hfp;
cfg->timings.timings.hsw = timings->hsw;
cfg->timings.timings.vbp = timings->vbp;
cfg->timings.timings.vfp = timings->vfp;
cfg->timings.timings.vsw = timings->vsw;
cfg->timings.timings.pixel_clock = timings->pixel_clock;
cfg->timings.vsync_pol = cea_vesa_timings[code].vsync_pol;
cfg->timings.hsync_pol = cea_vesa_timings[code].hsync_pol;
}
static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy,
struct hdmi_pll_info *pi)
{
unsigned long clkin, refclk;
u32 mf;
clkin = clk_get_rate(hdmi.sys_clk) / 10000;
/*
* Input clock is predivided by N + 1
* out put of which is reference clk
*/
pi->regn = dssdev->clocks.hdmi.regn;
refclk = clkin / (pi->regn + 1);
/*
* multiplier is pixel_clk/ref_clk
* Multiplying by 100 to avoid fractional part removal
*/
pi->regm = (phy * 100 / (refclk)) / 100;
pi->regm2 = dssdev->clocks.hdmi.regm2;
/*
* fractional multiplier is remainder of the difference between
* multiplier and actual phy(required pixel clock thus should be
* multiplied by 2^18(262144) divided by the reference clock
*/
mf = (phy - pi->regm * refclk) * 262144;
pi->regmf = mf / (refclk);
/*
* Dcofreq should be set to 1 if required pixel clock
* is greater than 1000MHz
*/
pi->dcofreq = phy > 1000 * 100;
pi->regsd = ((pi->regm * clkin / 10) / ((pi->regn + 1) * 250) + 5) / 10;
/* Set the reference clock to sysclk reference */
pi->refsel = HDMI_REFSEL_SYSCLK;
DSSDBG("M = %d Mf = %d\n", pi->regm, pi->regmf);
DSSDBG("range = %d sd = %d\n", pi->dcofreq, pi->regsd);
}
static int hdmi_power_on(struct omap_dss_device *dssdev)
{
int r, code = 0;
struct omap_video_timings *p;
unsigned long phy;
r = hdmi_runtime_get();
if (r)
return r;
dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, 0);
p = &dssdev->panel.timings;
DSSDBG("hdmi_power_on x_res= %d y_res = %d\n",
dssdev->panel.timings.x_res,
dssdev->panel.timings.y_res);
if (!hdmi.custom_set) {
DSSDBG("Read EDID as no EDID is not set on poweron\n");
hdmi_read_edid(p);
}
code = get_timings_index();
copy_hdmi_to_dss_timings(&cea_vesa_timings[code].timings,
&dssdev->panel.timings);
update_hdmi_timings(&hdmi.ip_data.cfg, p, code);
phy = p->pixel_clock;
hdmi_compute_pll(dssdev, phy, &hdmi.ip_data.pll_data);
hdmi_wp_video_start(&hdmi.ip_data, 0);
/* config the PLL and PHY hdmi_set_pll_pwrfirst */
r = hdmi_pll_program(&hdmi.ip_data);
if (r) {
DSSDBG("Failed to lock PLL\n");
goto err;
}
r = hdmi_phy_init(&hdmi.ip_data);
if (r) {
DSSDBG("Failed to start PHY\n");
goto err;
}
hdmi.ip_data.cfg.cm.mode = hdmi.mode;
hdmi.ip_data.cfg.cm.code = hdmi.code;
hdmi_basic_configure(&hdmi.ip_data);
/* Make selection of HDMI in DSS */
dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK);
/* Select the dispc clock source as PRCM clock, to ensure that it is not
* DSI PLL source as the clock selected by DSI PLL might not be
* sufficient for the resolution selected / that can be changed
* dynamically by user. This can be moved to single location , say
* Boardfile.
*/
dss_select_dispc_clk_source(dssdev->clocks.dispc.dispc_fclk_src);
/* bypass TV gamma table */
dispc_enable_gamma_table(0);
/* tv size */
dispc_set_digit_size(dssdev->panel.timings.x_res,
dssdev->panel.timings.y_res);
dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, 1);
hdmi_wp_video_start(&hdmi.ip_data, 1);
return 0;
err:
hdmi_runtime_put();
return -EIO;
}
static void hdmi_power_off(struct omap_dss_device *dssdev)
{
dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, 0);
hdmi_wp_video_start(&hdmi.ip_data, 0);
hdmi_phy_off(&hdmi.ip_data);
hdmi_set_pll_pwr(&hdmi.ip_data, HDMI_PLLPWRCMD_ALLOFF);
hdmi_runtime_put();
hdmi.edid_set = 0;
}
int omapdss_hdmi_display_check_timing(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
struct hdmi_cm cm;
cm = hdmi_get_code(timings);
if (cm.code == -1) {
DSSERR("Invalid timing entered\n");
return -EINVAL;
}
return 0;
}
void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev)
{
struct hdmi_cm cm;
hdmi.custom_set = 1;
cm = hdmi_get_code(&dssdev->panel.timings);
hdmi.code = cm.code;
hdmi.mode = cm.mode;
omapdss_hdmi_display_enable(dssdev);
hdmi.custom_set = 0;
}
int omapdss_hdmi_display_enable(struct omap_dss_device *dssdev)
{
int r = 0;
DSSDBG("ENTER hdmi_display_enable\n");
mutex_lock(&hdmi.lock);
if (dssdev->manager == NULL) {
DSSERR("failed to enable display: no manager\n");
r = -ENODEV;
goto err0;
}
r = omap_dss_start_device(dssdev);
if (r) {
DSSERR("failed to start device\n");
goto err0;
}
if (dssdev->platform_enable) {
r = dssdev->platform_enable(dssdev);
if (r) {
DSSERR("failed to enable GPIO's\n");
goto err1;
}
}
r = hdmi_power_on(dssdev);
if (r) {
DSSERR("failed to power on device\n");
goto err2;
}
mutex_unlock(&hdmi.lock);
return 0;
err2:
if (dssdev->platform_disable)
dssdev->platform_disable(dssdev);
err1:
omap_dss_stop_device(dssdev);
err0:
mutex_unlock(&hdmi.lock);
return r;
}
void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev)
{
DSSDBG("Enter hdmi_display_disable\n");
mutex_lock(&hdmi.lock);
hdmi_power_off(dssdev);
if (dssdev->platform_disable)
dssdev->platform_disable(dssdev);
omap_dss_stop_device(dssdev);
mutex_unlock(&hdmi.lock);
}
#if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
static void hdmi_wp_audio_config_format(struct hdmi_ip_data *ip_data,
struct hdmi_audio_format *aud_fmt)
{
u32 r;
DSSDBG("Enter hdmi_wp_audio_config_format\n");
r = hdmi_read_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CFG);
r = FLD_MOD(r, aud_fmt->stereo_channels, 26, 24);
r = FLD_MOD(r, aud_fmt->active_chnnls_msk, 23, 16);
r = FLD_MOD(r, aud_fmt->en_sig_blk_strt_end, 5, 5);
r = FLD_MOD(r, aud_fmt->type, 4, 4);
r = FLD_MOD(r, aud_fmt->justification, 3, 3);
r = FLD_MOD(r, aud_fmt->sample_order, 2, 2);
r = FLD_MOD(r, aud_fmt->samples_per_word, 1, 1);
r = FLD_MOD(r, aud_fmt->sample_size, 0, 0);
hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CFG, r);
}
static void hdmi_wp_audio_config_dma(struct hdmi_ip_data *ip_data,
struct hdmi_audio_dma *aud_dma)
{
u32 r;
DSSDBG("Enter hdmi_wp_audio_config_dma\n");
r = hdmi_read_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CFG2);
r = FLD_MOD(r, aud_dma->transfer_size, 15, 8);
r = FLD_MOD(r, aud_dma->block_size, 7, 0);
hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CFG2, r);
r = hdmi_read_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CTRL);
r = FLD_MOD(r, aud_dma->mode, 9, 9);
r = FLD_MOD(r, aud_dma->fifo_threshold, 8, 0);
hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CTRL, r);
}
static void hdmi_core_audio_config(struct hdmi_ip_data *ip_data,
struct hdmi_core_audio_config *cfg)
{
u32 r;
void __iomem *av_base = hdmi_av_base(ip_data);
/* audio clock recovery parameters */
r = hdmi_read_reg(av_base, HDMI_CORE_AV_ACR_CTRL);
r = FLD_MOD(r, cfg->use_mclk, 2, 2);
r = FLD_MOD(r, cfg->en_acr_pkt, 1, 1);
r = FLD_MOD(r, cfg->cts_mode, 0, 0);
hdmi_write_reg(av_base, HDMI_CORE_AV_ACR_CTRL, r);
REG_FLD_MOD(av_base, HDMI_CORE_AV_N_SVAL1, cfg->n, 7, 0);
REG_FLD_MOD(av_base, HDMI_CORE_AV_N_SVAL2, cfg->n >> 8, 7, 0);
REG_FLD_MOD(av_base, HDMI_CORE_AV_N_SVAL3, cfg->n >> 16, 7, 0);
if (cfg->cts_mode == HDMI_AUDIO_CTS_MODE_SW) {
REG_FLD_MOD(av_base, HDMI_CORE_AV_CTS_SVAL1, cfg->cts, 7, 0);
REG_FLD_MOD(av_base,
HDMI_CORE_AV_CTS_SVAL2, cfg->cts >> 8, 7, 0);
REG_FLD_MOD(av_base,
HDMI_CORE_AV_CTS_SVAL3, cfg->cts >> 16, 7, 0);
} else {
/*
* HDMI IP uses this configuration to divide the MCLK to
* update CTS value.
*/
REG_FLD_MOD(av_base,
HDMI_CORE_AV_FREQ_SVAL, cfg->mclk_mode, 2, 0);
/* Configure clock for audio packets */
REG_FLD_MOD(av_base, HDMI_CORE_AV_AUD_PAR_BUSCLK_1,
cfg->aud_par_busclk, 7, 0);
REG_FLD_MOD(av_base, HDMI_CORE_AV_AUD_PAR_BUSCLK_2,
(cfg->aud_par_busclk >> 8), 7, 0);
REG_FLD_MOD(av_base, HDMI_CORE_AV_AUD_PAR_BUSCLK_3,
(cfg->aud_par_busclk >> 16), 7, 0);
}
/* Override of SPDIF sample frequency with value in I2S_CHST4 */
REG_FLD_MOD(av_base, HDMI_CORE_AV_SPDIF_CTRL,
cfg->fs_override, 1, 1);
/* I2S parameters */
REG_FLD_MOD(av_base, HDMI_CORE_AV_I2S_CHST4,
cfg->freq_sample, 3, 0);
r = hdmi_read_reg(av_base, HDMI_CORE_AV_I2S_IN_CTRL);
r = FLD_MOD(r, cfg->i2s_cfg.en_high_bitrate_aud, 7, 7);
r = FLD_MOD(r, cfg->i2s_cfg.sck_edge_mode, 6, 6);
r = FLD_MOD(r, cfg->i2s_cfg.cbit_order, 5, 5);
r = FLD_MOD(r, cfg->i2s_cfg.vbit, 4, 4);
r = FLD_MOD(r, cfg->i2s_cfg.ws_polarity, 3, 3);
r = FLD_MOD(r, cfg->i2s_cfg.justification, 2, 2);
r = FLD_MOD(r, cfg->i2s_cfg.direction, 1, 1);
r = FLD_MOD(r, cfg->i2s_cfg.shift, 0, 0);
hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_IN_CTRL, r);
r = hdmi_read_reg(av_base, HDMI_CORE_AV_I2S_CHST5);
r = FLD_MOD(r, cfg->freq_sample, 7, 4);
r = FLD_MOD(r, cfg->i2s_cfg.word_length, 3, 1);
r = FLD_MOD(r, cfg->i2s_cfg.word_max_length, 0, 0);
hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_CHST5, r);
REG_FLD_MOD(av_base, HDMI_CORE_AV_I2S_IN_LEN,
cfg->i2s_cfg.in_length_bits, 3, 0);
/* Audio channels and mode parameters */
REG_FLD_MOD(av_base, HDMI_CORE_AV_HDMI_CTRL, cfg->layout, 2, 1);
r = hdmi_read_reg(av_base, HDMI_CORE_AV_AUD_MODE);
r = FLD_MOD(r, cfg->i2s_cfg.active_sds, 7, 4);
r = FLD_MOD(r, cfg->en_dsd_audio, 3, 3);
r = FLD_MOD(r, cfg->en_parallel_aud_input, 2, 2);
r = FLD_MOD(r, cfg->en_spdif, 1, 1);
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_MODE, r);
}
static void hdmi_core_audio_infoframe_config(struct hdmi_ip_data *ip_data,
struct hdmi_core_infoframe_audio *info_aud)
{
u8 val;
u8 sum = 0, checksum = 0;
void __iomem *av_base = hdmi_av_base(ip_data);
/*
* Set audio info frame type, version and length as
* described in HDMI 1.4a Section 8.2.2 specification.
* Checksum calculation is defined in Section 5.3.5.
*/
hdmi_write_reg(av_base, HDMI_CORE_AV_AUDIO_TYPE, 0x84);
hdmi_write_reg(av_base, HDMI_CORE_AV_AUDIO_VERS, 0x01);
hdmi_write_reg(av_base, HDMI_CORE_AV_AUDIO_LEN, 0x0a);
sum += 0x84 + 0x001 + 0x00a;
val = (info_aud->db1_coding_type << 4)
| (info_aud->db1_channel_count - 1);
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(0), val);
sum += val;
val = (info_aud->db2_sample_freq << 2) | info_aud->db2_sample_size;
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(1), val);
sum += val;
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(2), 0x00);
val = info_aud->db4_channel_alloc;
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(3), val);
sum += val;
val = (info_aud->db5_downmix_inh << 7) | (info_aud->db5_lsv << 3);
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(4), val);
sum += val;
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(5), 0x00);
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(6), 0x00);
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(7), 0x00);
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(8), 0x00);
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(9), 0x00);
checksum = 0x100 - sum;
hdmi_write_reg(av_base,
HDMI_CORE_AV_AUDIO_CHSUM, checksum);
/*
* TODO: Add MPEG and SPD enable and repeat cfg when EDID parsing
* is available.
*/
}
static int hdmi_config_audio_acr(struct hdmi_ip_data *ip_data,
u32 sample_freq, u32 *n, u32 *cts)
{
u32 r;
u32 deep_color = 0;
u32 pclk = hdmi.cfg.timings.timings.pixel_clock;
if (n == NULL || cts == NULL)
return -EINVAL;
/*
* Obtain current deep color configuration. This needed
* to calculate the TMDS clock based on the pixel clock.
*/
r = REG_GET(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_CFG, 1, 0);
switch (r) {
case 1: /* No deep color selected */
deep_color = 100;
break;
case 2: /* 10-bit deep color selected */
deep_color = 125;
break;
case 3: /* 12-bit deep color selected */
deep_color = 150;
break;
default:
return -EINVAL;
}
switch (sample_freq) {
case 32000:
if ((deep_color == 125) && ((pclk == 54054)
|| (pclk == 74250)))
*n = 8192;
else
*n = 4096;
break;
case 44100:
*n = 6272;
break;
case 48000:
if ((deep_color == 125) && ((pclk == 54054)
|| (pclk == 74250)))
*n = 8192;
else
*n = 6144;
break;
default:
*n = 0;
return -EINVAL;
}
/* Calculate CTS. See HDMI 1.3a or 1.4a specifications */
*cts = pclk * (*n / 128) * deep_color / (sample_freq / 10);
return 0;
}
static int hdmi_audio_hw_params(struct hdmi_ip_data *ip_data,
struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct hdmi_audio_format audio_format;
struct hdmi_audio_dma audio_dma;
struct hdmi_core_audio_config core_cfg;
struct hdmi_core_infoframe_audio aud_if_cfg;
int err, n, cts;
enum hdmi_core_audio_sample_freq sample_freq;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
core_cfg.i2s_cfg.word_max_length =
HDMI_AUDIO_I2S_MAX_WORD_20BITS;
core_cfg.i2s_cfg.word_length = HDMI_AUDIO_I2S_CHST_WORD_16_BITS;
core_cfg.i2s_cfg.in_length_bits =
HDMI_AUDIO_I2S_INPUT_LENGTH_16;
core_cfg.i2s_cfg.justification = HDMI_AUDIO_JUSTIFY_LEFT;
audio_format.samples_per_word = HDMI_AUDIO_ONEWORD_TWOSAMPLES;
audio_format.sample_size = HDMI_AUDIO_SAMPLE_16BITS;
audio_format.justification = HDMI_AUDIO_JUSTIFY_LEFT;
audio_dma.transfer_size = 0x10;
break;
case SNDRV_PCM_FORMAT_S24_LE:
core_cfg.i2s_cfg.word_max_length =
HDMI_AUDIO_I2S_MAX_WORD_24BITS;
core_cfg.i2s_cfg.word_length = HDMI_AUDIO_I2S_CHST_WORD_24_BITS;
core_cfg.i2s_cfg.in_length_bits =
HDMI_AUDIO_I2S_INPUT_LENGTH_24;
audio_format.samples_per_word = HDMI_AUDIO_ONEWORD_ONESAMPLE;
audio_format.sample_size = HDMI_AUDIO_SAMPLE_24BITS;
audio_format.justification = HDMI_AUDIO_JUSTIFY_RIGHT;
core_cfg.i2s_cfg.justification = HDMI_AUDIO_JUSTIFY_RIGHT;
audio_dma.transfer_size = 0x20;
break;
default:
return -EINVAL;
}
switch (params_rate(params)) {
case 32000:
sample_freq = HDMI_AUDIO_FS_32000;
break;
case 44100:
sample_freq = HDMI_AUDIO_FS_44100;
break;
case 48000:
sample_freq = HDMI_AUDIO_FS_48000;
break;
default:
return -EINVAL;
}
err = hdmi_config_audio_acr(ip_data, params_rate(params), &n, &cts);
if (err < 0)
return err;
/* Audio wrapper config */
audio_format.stereo_channels = HDMI_AUDIO_STEREO_ONECHANNEL;
audio_format.active_chnnls_msk = 0x03;
audio_format.type = HDMI_AUDIO_TYPE_LPCM;
audio_format.sample_order = HDMI_AUDIO_SAMPLE_LEFT_FIRST;
/* Disable start/stop signals of IEC 60958 blocks */
audio_format.en_sig_blk_strt_end = HDMI_AUDIO_BLOCK_SIG_STARTEND_OFF;
audio_dma.block_size = 0xC0;
audio_dma.mode = HDMI_AUDIO_TRANSF_DMA;
audio_dma.fifo_threshold = 0x20; /* in number of samples */
hdmi_wp_audio_config_dma(ip_data, &audio_dma);
hdmi_wp_audio_config_format(ip_data, &audio_format);
/*
* I2S config
*/
core_cfg.i2s_cfg.en_high_bitrate_aud = false;
/* Only used with high bitrate audio */
core_cfg.i2s_cfg.cbit_order = false;
/* Serial data and word select should change on sck rising edge */
core_cfg.i2s_cfg.sck_edge_mode = HDMI_AUDIO_I2S_SCK_EDGE_RISING;
core_cfg.i2s_cfg.vbit = HDMI_AUDIO_I2S_VBIT_FOR_PCM;
/* Set I2S word select polarity */
core_cfg.i2s_cfg.ws_polarity = HDMI_AUDIO_I2S_WS_POLARITY_LOW_IS_LEFT;
core_cfg.i2s_cfg.direction = HDMI_AUDIO_I2S_MSB_SHIFTED_FIRST;
/* Set serial data to word select shift. See Phillips spec. */
core_cfg.i2s_cfg.shift = HDMI_AUDIO_I2S_FIRST_BIT_SHIFT;
/* Enable one of the four available serial data channels */
core_cfg.i2s_cfg.active_sds = HDMI_AUDIO_I2S_SD0_EN;
/* Core audio config */
core_cfg.freq_sample = sample_freq;
core_cfg.n = n;
core_cfg.cts = cts;
if (dss_has_feature(FEAT_HDMI_CTS_SWMODE)) {
core_cfg.aud_par_busclk = 0;
core_cfg.cts_mode = HDMI_AUDIO_CTS_MODE_SW;
core_cfg.use_mclk = false;
} else {
core_cfg.aud_par_busclk = (((128 * 31) - 1) << 8);
core_cfg.cts_mode = HDMI_AUDIO_CTS_MODE_HW;
core_cfg.use_mclk = true;
core_cfg.mclk_mode = HDMI_AUDIO_MCLK_128FS;
}
core_cfg.layout = HDMI_AUDIO_LAYOUT_2CH;
core_cfg.en_spdif = false;
/* Use sample frequency from channel status word */
core_cfg.fs_override = true;
/* Enable ACR packets */
core_cfg.en_acr_pkt = true;
/* Disable direct streaming digital audio */
core_cfg.en_dsd_audio = false;
/* Use parallel audio interface */
core_cfg.en_parallel_aud_input = true;
hdmi_core_audio_config(ip_data, &core_cfg);
/*
* Configure packet
* info frame audio see doc CEA861-D page 74
*/
aud_if_cfg.db1_coding_type = HDMI_INFOFRAME_AUDIO_DB1CT_FROM_STREAM;
aud_if_cfg.db1_channel_count = 2;
aud_if_cfg.db2_sample_freq = HDMI_INFOFRAME_AUDIO_DB2SF_FROM_STREAM;
aud_if_cfg.db2_sample_size = HDMI_INFOFRAME_AUDIO_DB2SS_FROM_STREAM;
aud_if_cfg.db4_channel_alloc = 0x00;
aud_if_cfg.db5_downmix_inh = false;
aud_if_cfg.db5_lsv = 0;
hdmi_core_audio_infoframe_config(ip_data, &aud_if_cfg);
return 0;
}
static int hdmi_audio_trigger(struct hdmi_ip_data *ip_data,
struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
int err = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
REG_FLD_MOD(hdmi_av_base(ip_data),
HDMI_CORE_AV_AUD_MODE, 1, 0, 0);
REG_FLD_MOD(hdmi_wp_base(ip_data),
HDMI_WP_AUDIO_CTRL, 1, 31, 31);
REG_FLD_MOD(hdmi_wp_base(ip_data),
HDMI_WP_AUDIO_CTRL, 1, 30, 30);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
REG_FLD_MOD(hdmi_av_base(ip_data),
HDMI_CORE_AV_AUD_MODE, 0, 0, 0);
REG_FLD_MOD(hdmi_wp_base(ip_data),
HDMI_WP_AUDIO_CTRL, 0, 30, 30);
REG_FLD_MOD(hdmi_wp_base(ip_data),
HDMI_WP_AUDIO_CTRL, 0, 31, 31);
break;
default:
err = -EINVAL;
}
return err;
}
static int hdmi_audio_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
if (!hdmi.mode) {
pr_err("Current video settings do not support audio.\n");
return -EIO;
}
return 0;
}
static struct snd_soc_codec_driver hdmi_audio_codec_drv = {
};
static struct snd_soc_dai_ops hdmi_audio_codec_ops = {
.hw_params = hdmi_audio_hw_params,
.trigger = hdmi_audio_trigger,
.startup = hdmi_audio_startup,
};
static struct snd_soc_dai_driver hdmi_codec_dai_drv = {
.name = "hdmi-audio-codec",
.playback = {
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE,
},
.ops = &hdmi_audio_codec_ops,
};
#endif
static int hdmi_get_clocks(struct platform_device *pdev)
{
struct clk *clk;
clk = clk_get(&pdev->dev, "sys_clk");
if (IS_ERR(clk)) {
DSSERR("can't get sys_clk\n");
return PTR_ERR(clk);
}
hdmi.sys_clk = clk;
return 0;
}
static void hdmi_put_clocks(void)
{
if (hdmi.sys_clk)
clk_put(hdmi.sys_clk);
}
/* HDMI HW IP initialisation */
static int omapdss_hdmihw_probe(struct platform_device *pdev)
{
struct resource *hdmi_mem;
int r;
hdmi.pdata = pdev->dev.platform_data;
hdmi.pdev = pdev;
mutex_init(&hdmi.lock);
hdmi_mem = platform_get_resource(hdmi.pdev, IORESOURCE_MEM, 0);
if (!hdmi_mem) {
DSSERR("can't get IORESOURCE_MEM HDMI\n");
return -EINVAL;
}
/* Base address taken from platform */
hdmi.ip_data.base_wp = ioremap(hdmi_mem->start,
resource_size(hdmi_mem));
if (!hdmi.ip_data.base_wp) {
DSSERR("can't ioremap WP\n");
return -ENOMEM;
}
r = hdmi_get_clocks(pdev);
if (r) {
iounmap(hdmi.ip_data.base_wp);
return r;
}
pm_runtime_enable(&pdev->dev);
hdmi.ip_data.core_sys_offset = HDMI_CORE_SYS;
hdmi.ip_data.core_av_offset = HDMI_CORE_AV;
hdmi.ip_data.pll_offset = HDMI_PLLCTRL;
hdmi.ip_data.phy_offset = HDMI_PHY;
hdmi_panel_init();
#if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
/* Register ASoC codec DAI */
r = snd_soc_register_codec(&pdev->dev, &hdmi_audio_codec_drv,
&hdmi_codec_dai_drv, 1);
if (r) {
DSSERR("can't register ASoC HDMI audio codec\n");
return r;
}
#endif
return 0;
}
static int omapdss_hdmihw_remove(struct platform_device *pdev)
{
hdmi_panel_exit();
#if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
snd_soc_unregister_codec(&pdev->dev);
#endif
pm_runtime_disable(&pdev->dev);
hdmi_put_clocks();
iounmap(hdmi.ip_data.base_wp);
return 0;
}
static int hdmi_runtime_suspend(struct device *dev)
{
clk_disable(hdmi.sys_clk);
dispc_runtime_put();
dss_runtime_put();
return 0;
}
static int hdmi_runtime_resume(struct device *dev)
{
int r;
r = dss_runtime_get();
if (r < 0)
goto err_get_dss;
r = dispc_runtime_get();
if (r < 0)
goto err_get_dispc;
clk_enable(hdmi.sys_clk);
return 0;
err_get_dispc:
dss_runtime_put();
err_get_dss:
return r;
}
static const struct dev_pm_ops hdmi_pm_ops = {
.runtime_suspend = hdmi_runtime_suspend,
.runtime_resume = hdmi_runtime_resume,
};
static struct platform_driver omapdss_hdmihw_driver = {
.probe = omapdss_hdmihw_probe,
.remove = omapdss_hdmihw_remove,
.driver = {
.name = "omapdss_hdmi",
.owner = THIS_MODULE,
.pm = &hdmi_pm_ops,
},
};
int hdmi_init_platform_driver(void)
{
return platform_driver_register(&omapdss_hdmihw_driver);
}
void hdmi_uninit_platform_driver(void)
{
return platform_driver_unregister(&omapdss_hdmihw_driver);
}
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