drivers/video/omap2/dss/hdmi_common.c - maze/linux - Git at Google


 /*
  * 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.
  */

 #define DSS_SUBSYS_NAME "HDMI"

 #include <linux/kernel.h>
 #include <linux/err.h>
 #include <video/omapdss.h>

 #include "hdmi.h"

 static const struct hdmi_config cea_timings[] = {
 	{
 		{ 640, 480, 25200000, 96, 16, 48, 2, 10, 33,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 1, HDMI_HDMI },
 	},
 	{
 		{ 720, 480, 27027000, 62, 16, 60, 6, 9, 30,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 2, HDMI_HDMI },
 	},
 	{
 		{ 1280, 720, 74250000, 40, 110, 220, 5, 5, 20,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 4, HDMI_HDMI },
 	},
 	{
 		{ 1920, 540, 74250000, 44, 88, 148, 5, 2, 15,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			true, },
 		{ 5, HDMI_HDMI },
 	},
 	{
 		{ 1440, 240, 27027000, 124, 38, 114, 3, 4, 15,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
 			true, },
 		{ 6, HDMI_HDMI },
 	},
 	{
 		{ 1920, 1080, 148500000, 44, 88, 148, 5, 4, 36,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 16, HDMI_HDMI },
 	},
 	{
 		{ 720, 576, 27000000, 64, 12, 68, 5, 5, 39,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 17, HDMI_HDMI },
 	},
 	{
 		{ 1280, 720, 74250000, 40, 440, 220, 5, 5, 20,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 19, HDMI_HDMI },
 	},
 	{
 		{ 1920, 540, 74250000, 44, 528, 148, 5, 2, 15,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			true, },
 		{ 20, HDMI_HDMI },
 	},
 	{
 		{ 1440, 288, 27000000, 126, 24, 138, 3, 2, 19,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
 			true, },
 		{ 21, HDMI_HDMI },
 	},
 	{
 		{ 1440, 576, 54000000, 128, 24, 136, 5, 5, 39,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 29, HDMI_HDMI },
 	},
 	{
 		{ 1920, 1080, 148500000, 44, 528, 148, 5, 4, 36,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 31, HDMI_HDMI },
 	},
 	{
 		{ 1920, 1080, 74250000, 44, 638, 148, 5, 4, 36,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 32, HDMI_HDMI },
 	},
 	{
 		{ 2880, 480, 108108000, 248, 64, 240, 6, 9, 30,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 35, HDMI_HDMI },
 	},
 	{
 		{ 2880, 576, 108000000, 256, 48, 272, 5, 5, 39,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 37, HDMI_HDMI },
 	},
 };

 static const struct hdmi_config vesa_timings[] = {
 /* VESA From Here */
 	{
 		{ 640, 480, 25175000, 96, 16, 48, 2, 11, 31,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 4, HDMI_DVI },
 	},
 	{
 		{ 800, 600, 40000000, 128, 40, 88, 4, 1, 23,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 9, HDMI_DVI },
 	},
 	{
 		{ 848, 480, 33750000, 112, 16, 112, 8, 6, 23,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0xE, HDMI_DVI },
 	},
 	{
 		{ 1280, 768, 79500000, 128, 64, 192, 7, 3, 20,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 0x17, HDMI_DVI },
 	},
 	{
 		{ 1280, 800, 83500000, 128, 72, 200, 6, 3, 22,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 0x1C, HDMI_DVI },
 	},
 	{
 		{ 1360, 768, 85500000, 112, 64, 256, 6, 3, 18,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0x27, HDMI_DVI },
 	},
 	{
 		{ 1280, 960, 108000000, 112, 96, 312, 3, 1, 36,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0x20, HDMI_DVI },
 	},
 	{
 		{ 1280, 1024, 108000000, 112, 48, 248, 3, 1, 38,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0x23, HDMI_DVI },
 	},
 	{
 		{ 1024, 768, 65000000, 136, 24, 160, 6, 3, 29,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 0x10, HDMI_DVI },
 	},
 	{
 		{ 1400, 1050, 121750000, 144, 88, 232, 4, 3, 32,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 0x2A, HDMI_DVI },
 	},
 	{
 		{ 1440, 900, 106500000, 152, 80, 232, 6, 3, 25,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 0x2F, HDMI_DVI },
 	},
 	{
 		{ 1680, 1050, 146250000, 176 , 104, 280, 6, 3, 30,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
 			false, },
 		{ 0x3A, HDMI_DVI },
 	},
 	{
 		{ 1366, 768, 85500000, 143, 70, 213, 3, 3, 24,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0x51, HDMI_DVI },
 	},
 	{
 		{ 1920, 1080, 148500000, 44, 148, 80, 5, 4, 36,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0x52, HDMI_DVI },
 	},
 	{
 		{ 1280, 768, 68250000, 32, 48, 80, 7, 3, 12,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0x16, HDMI_DVI },
 	},
 	{
 		{ 1400, 1050, 101000000, 32, 48, 80, 4, 3, 23,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0x29, HDMI_DVI },
 	},
 	{
 		{ 1680, 1050, 119000000, 32, 48, 80, 6, 3, 21,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0x39, HDMI_DVI },
 	},
 	{
 		{ 1280, 800, 79500000, 32, 48, 80, 6, 3, 14,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0x1B, HDMI_DVI },
 	},
 	{
 		{ 1280, 720, 74250000, 40, 110, 220, 5, 5, 20,
 			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0x55, HDMI_DVI },
 	},
 	{
 		{ 1920, 1200, 154000000, 32, 48, 80, 6, 3, 26,
 			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
 			false, },
 		{ 0x44, HDMI_DVI },
 	},
 };

 const struct hdmi_config *hdmi_default_timing(void)
 {
 	return &vesa_timings[0];
 }

 static const struct hdmi_config *hdmi_find_timing(int code,
 			const struct hdmi_config *timings_arr, int len)
 {
 	int i;

 	for (i = 0; i < len; i++) {
 		if (timings_arr[i].cm.code == code)
 			return &timings_arr[i];
 	}

 	return NULL;
 }

 const struct hdmi_config *hdmi_get_timings(int mode, int code)
 {
 	const struct hdmi_config *arr;
 	int len;

 	if (mode == HDMI_DVI) {
 		arr = vesa_timings;
 		len = ARRAY_SIZE(vesa_timings);
 	} else {
 		arr = cea_timings;
 		len = ARRAY_SIZE(cea_timings);
 	}

 	return hdmi_find_timing(code, arr, len);
 }

 static bool hdmi_timings_compare(struct omap_video_timings *timing1,
 			const struct omap_video_timings *timing2)
 {
 	int timing1_vsync, timing1_hsync, timing2_vsync, timing2_hsync;

 	if ((DIV_ROUND_CLOSEST(timing2->pixelclock, 1000000) ==
 			DIV_ROUND_CLOSEST(timing1->pixelclock, 1000000)) &&
 		(timing2->x_res == timing1->x_res) &&
 		(timing2->y_res == timing1->y_res)) {

 		timing2_hsync = timing2->hfp + timing2->hsw + timing2->hbp;
 		timing1_hsync = timing1->hfp + timing1->hsw + timing1->hbp;
 		timing2_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
 		timing1_vsync = timing1->vfp + timing1->vsw + timing1->vbp;

 		DSSDBG("timing1_hsync = %d timing1_vsync = %d"\
 			"timing2_hsync = %d timing2_vsync = %d\n",
 			timing1_hsync, timing1_vsync,
 			timing2_hsync, timing2_vsync);

 		if ((timing1_hsync == timing2_hsync) &&
 			(timing1_vsync == timing2_vsync)) {
 			return true;
 		}
 	}
 	return false;
 }

 struct hdmi_cm hdmi_get_code(struct omap_video_timings *timing)
 {
 	int i;
 	struct hdmi_cm cm = {-1};
 	DSSDBG("hdmi_get_code\n");

 	for (i = 0; i < ARRAY_SIZE(cea_timings); i++) {
 		if (hdmi_timings_compare(timing, &cea_timings[i].timings)) {
 			cm = cea_timings[i].cm;
 			goto end;
 		}
 	}
 	for (i = 0; i < ARRAY_SIZE(vesa_timings); i++) {
 		if (hdmi_timings_compare(timing, &vesa_timings[i].timings)) {
 			cm = vesa_timings[i].cm;
 			goto end;
 		}
 	}

 end:
 	return cm;
 }

 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
 int hdmi_compute_acr(u32 pclk, u32 sample_freq, u32 *n, u32 *cts)
 {
 	u32 deep_color;
 	bool deep_color_correct = false;

 	if (n == NULL || cts == NULL)
 		return -EINVAL;

 	/* TODO: When implemented, query deep color mode here. */
 	deep_color = 100;

 	/*
 	 * When using deep color, the default N value (as in the HDMI
 	 * specification) yields to an non-integer CTS. Hence, we
 	 * modify it while keeping the restrictions described in
 	 * section 7.2.1 of the HDMI 1.4a specification.
 	 */
 	switch (sample_freq) {
 	case 32000:
 	case 48000:
 	case 96000:
 	case 192000:
 		if (deep_color == 125)
 			if (pclk == 27027 || pclk == 74250)
 				deep_color_correct = true;
 		if (deep_color == 150)
 			if (pclk == 27027)
 				deep_color_correct = true;
 		break;
 	case 44100:
 	case 88200:
 	case 176400:
 		if (deep_color == 125)
 			if (pclk == 27027)
 				deep_color_correct = true;
 		break;
 	default:
 		return -EINVAL;
 	}

 	if (deep_color_correct) {
 		switch (sample_freq) {
 		case 32000:
 			*n = 8192;
 			break;
 		case 44100:
 			*n = 12544;
 			break;
 		case 48000:
 			*n = 8192;
 			break;
 		case 88200:
 			*n = 25088;
 			break;
 		case 96000:
 			*n = 16384;
 			break;
 		case 176400:
 			*n = 50176;
 			break;
 		case 192000:
 			*n = 32768;
 			break;
 		default:
 			return -EINVAL;
 		}
 	} else {
 		switch (sample_freq) {
 		case 32000:
 			*n = 4096;
 			break;
 		case 44100:
 			*n = 6272;
 			break;
 		case 48000:
 			*n = 6144;
 			break;
 		case 88200:
 			*n = 12544;
 			break;
 		case 96000:
 			*n = 12288;
 			break;
 		case 176400:
 			*n = 25088;
 			break;
 		case 192000:
 			*n = 24576;
 			break;
 		default:
 			return -EINVAL;
 		}
 	}
 	/* Calculate CTS. See HDMI 1.3a or 1.4a specifications */
 	*cts = pclk * (*n / 128) * deep_color / (sample_freq / 10);

 	return 0;
 }
 #endif

	/*
	* 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.
	*/

	#define DSS_SUBSYS_NAME "HDMI"

	#include <linux/kernel.h>
	#include <linux/err.h>
	#include <video/omapdss.h>

	#include "hdmi.h"

	static const struct hdmi_config cea_timings[] = {
	{
	{ 640, 480, 25200000, 96, 16, 48, 2, 10, 33,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 1, HDMI_HDMI },
	},
	{
	{ 720, 480, 27027000, 62, 16, 60, 6, 9, 30,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 2, HDMI_HDMI },
	},
	{
	{ 1280, 720, 74250000, 40, 110, 220, 5, 5, 20,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 4, HDMI_HDMI },
	},
	{
	{ 1920, 540, 74250000, 44, 88, 148, 5, 2, 15,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	true, },
	{ 5, HDMI_HDMI },
	},
	{
	{ 1440, 240, 27027000, 124, 38, 114, 3, 4, 15,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
	true, },
	{ 6, HDMI_HDMI },
	},
	{
	{ 1920, 1080, 148500000, 44, 88, 148, 5, 4, 36,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 16, HDMI_HDMI },
	},
	{
	{ 720, 576, 27000000, 64, 12, 68, 5, 5, 39,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 17, HDMI_HDMI },
	},
	{
	{ 1280, 720, 74250000, 40, 440, 220, 5, 5, 20,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 19, HDMI_HDMI },
	},
	{
	{ 1920, 540, 74250000, 44, 528, 148, 5, 2, 15,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	true, },
	{ 20, HDMI_HDMI },
	},
	{
	{ 1440, 288, 27000000, 126, 24, 138, 3, 2, 19,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
	true, },
	{ 21, HDMI_HDMI },
	},
	{
	{ 1440, 576, 54000000, 128, 24, 136, 5, 5, 39,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 29, HDMI_HDMI },
	},
	{
	{ 1920, 1080, 148500000, 44, 528, 148, 5, 4, 36,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 31, HDMI_HDMI },
	},
	{
	{ 1920, 1080, 74250000, 44, 638, 148, 5, 4, 36,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 32, HDMI_HDMI },
	},
	{
	{ 2880, 480, 108108000, 248, 64, 240, 6, 9, 30,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 35, HDMI_HDMI },
	},
	{
	{ 2880, 576, 108000000, 256, 48, 272, 5, 5, 39,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 37, HDMI_HDMI },
	},
	};

	static const struct hdmi_config vesa_timings[] = {
	/* VESA From Here */
	{
	{ 640, 480, 25175000, 96, 16, 48, 2, 11, 31,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 4, HDMI_DVI },
	},
	{
	{ 800, 600, 40000000, 128, 40, 88, 4, 1, 23,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 9, HDMI_DVI },
	},
	{
	{ 848, 480, 33750000, 112, 16, 112, 8, 6, 23,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0xE, HDMI_DVI },
	},
	{
	{ 1280, 768, 79500000, 128, 64, 192, 7, 3, 20,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 0x17, HDMI_DVI },
	},
	{
	{ 1280, 800, 83500000, 128, 72, 200, 6, 3, 22,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 0x1C, HDMI_DVI },
	},
	{
	{ 1360, 768, 85500000, 112, 64, 256, 6, 3, 18,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0x27, HDMI_DVI },
	},
	{
	{ 1280, 960, 108000000, 112, 96, 312, 3, 1, 36,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0x20, HDMI_DVI },
	},
	{
	{ 1280, 1024, 108000000, 112, 48, 248, 3, 1, 38,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0x23, HDMI_DVI },
	},
	{
	{ 1024, 768, 65000000, 136, 24, 160, 6, 3, 29,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 0x10, HDMI_DVI },
	},
	{
	{ 1400, 1050, 121750000, 144, 88, 232, 4, 3, 32,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 0x2A, HDMI_DVI },
	},
	{
	{ 1440, 900, 106500000, 152, 80, 232, 6, 3, 25,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 0x2F, HDMI_DVI },
	},
	{
	{ 1680, 1050, 146250000, 176 , 104, 280, 6, 3, 30,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
	false, },
	{ 0x3A, HDMI_DVI },
	},
	{
	{ 1366, 768, 85500000, 143, 70, 213, 3, 3, 24,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0x51, HDMI_DVI },
	},
	{
	{ 1920, 1080, 148500000, 44, 148, 80, 5, 4, 36,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0x52, HDMI_DVI },
	},
	{
	{ 1280, 768, 68250000, 32, 48, 80, 7, 3, 12,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0x16, HDMI_DVI },
	},
	{
	{ 1400, 1050, 101000000, 32, 48, 80, 4, 3, 23,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0x29, HDMI_DVI },
	},
	{
	{ 1680, 1050, 119000000, 32, 48, 80, 6, 3, 21,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0x39, HDMI_DVI },
	},
	{
	{ 1280, 800, 79500000, 32, 48, 80, 6, 3, 14,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0x1B, HDMI_DVI },
	},
	{
	{ 1280, 720, 74250000, 40, 110, 220, 5, 5, 20,
	OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0x55, HDMI_DVI },
	},
	{
	{ 1920, 1200, 154000000, 32, 48, 80, 6, 3, 26,
	OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
	false, },
	{ 0x44, HDMI_DVI },
	},
	};

	const struct hdmi_config *hdmi_default_timing(void)
	{
	return &vesa_timings[0];
	}

	static const struct hdmi_config *hdmi_find_timing(int code,
	const struct hdmi_config *timings_arr, int len)
	{
	int i;

	for (i = 0; i < len; i++) {
	if (timings_arr[i].cm.code == code)
	return &timings_arr[i];
	}

	return NULL;
	}

	const struct hdmi_config *hdmi_get_timings(int mode, int code)
	{
	const struct hdmi_config *arr;
	int len;

	if (mode == HDMI_DVI) {
	arr = vesa_timings;
	len = ARRAY_SIZE(vesa_timings);
	} else {
	arr = cea_timings;
	len = ARRAY_SIZE(cea_timings);
	}

	return hdmi_find_timing(code, arr, len);
	}

	static bool hdmi_timings_compare(struct omap_video_timings *timing1,
	const struct omap_video_timings *timing2)
	{
	int timing1_vsync, timing1_hsync, timing2_vsync, timing2_hsync;

	if ((DIV_ROUND_CLOSEST(timing2->pixelclock, 1000000) ==
	DIV_ROUND_CLOSEST(timing1->pixelclock, 1000000)) &&
	(timing2->x_res == timing1->x_res) &&
	(timing2->y_res == timing1->y_res)) {

	timing2_hsync = timing2->hfp + timing2->hsw + timing2->hbp;
	timing1_hsync = timing1->hfp + timing1->hsw + timing1->hbp;
	timing2_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
	timing1_vsync = timing1->vfp + timing1->vsw + timing1->vbp;

	DSSDBG("timing1_hsync = %d timing1_vsync = %d"\
	"timing2_hsync = %d timing2_vsync = %d\n",
	timing1_hsync, timing1_vsync,
	timing2_hsync, timing2_vsync);

	if ((timing1_hsync == timing2_hsync) &&
	(timing1_vsync == timing2_vsync)) {
	return true;
	}
	}
	return false;
	}

	struct hdmi_cm hdmi_get_code(struct omap_video_timings *timing)
	{
	int i;
	struct hdmi_cm cm = {-1};
	DSSDBG("hdmi_get_code\n");

	for (i = 0; i < ARRAY_SIZE(cea_timings); i++) {
	if (hdmi_timings_compare(timing, &cea_timings[i].timings)) {
	cm = cea_timings[i].cm;
	goto end;
	}
	}
	for (i = 0; i < ARRAY_SIZE(vesa_timings); i++) {
	if (hdmi_timings_compare(timing, &vesa_timings[i].timings)) {
	cm = vesa_timings[i].cm;
	goto end;
	}
	}

	end:
	return cm;
	}

	#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
	int hdmi_compute_acr(u32 pclk, u32 sample_freq, u32 n, u32 cts)
	{
	u32 deep_color;
	bool deep_color_correct = false;

	if (n == NULL \|\| cts == NULL)
	return -EINVAL;

	/* TODO: When implemented, query deep color mode here. */
	deep_color = 100;

	/*
	* When using deep color, the default N value (as in the HDMI
	* specification) yields to an non-integer CTS. Hence, we
	* modify it while keeping the restrictions described in
	* section 7.2.1 of the HDMI 1.4a specification.
	*/
	switch (sample_freq) {
	case 32000:
	case 48000:
	case 96000:
	case 192000:
	if (deep_color == 125)
	if (pclk == 27027 \|\| pclk == 74250)
	deep_color_correct = true;
	if (deep_color == 150)
	if (pclk == 27027)
	deep_color_correct = true;
	break;
	case 44100:
	case 88200:
	case 176400:
	if (deep_color == 125)
	if (pclk == 27027)
	deep_color_correct = true;
	break;
	default:
	return -EINVAL;
	}

	if (deep_color_correct) {
	switch (sample_freq) {
	case 32000:
	*n = 8192;
	break;
	case 44100:
	*n = 12544;
	break;
	case 48000:
	*n = 8192;
	break;
	case 88200:
	*n = 25088;
	break;
	case 96000:
	*n = 16384;
	break;
	case 176400:
	*n = 50176;
	break;
	case 192000:
	*n = 32768;
	break;
	default:
	return -EINVAL;
	}
	} else {
	switch (sample_freq) {
	case 32000:
	*n = 4096;
	break;
	case 44100:
	*n = 6272;
	break;
	case 48000:
	*n = 6144;
	break;
	case 88200:
	*n = 12544;
	break;
	case 96000:
	*n = 12288;
	break;
	case 176400:
	*n = 25088;
	break;
	case 192000:
	*n = 24576;
	break;
	default:
	return -EINVAL;
	}
	}
	/* Calculate CTS. See HDMI 1.3a or 1.4a specifications */
	cts = pclk (n / 128) deep_color / (sample_freq / 10);

	return 0;
	}
	#endif