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Release 4.11 drivers/video/fbdev/omap2/omapfb/dss/venc.c

/*
 * linux/drivers/video/omap2/dss/venc.c
 *
 * Copyright (C) 2009 Nokia Corporation
 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
 *
 * VENC settings from TI's DSS driver
 *
 * 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 "VENC"

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/mutex.h>
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/string.h>
#include <linux/seq_file.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/pm_runtime.h>
#include <linux/of.h>
#include <linux/component.h>

#include <video/omapfb_dss.h>

#include "dss.h"
#include "dss_features.h"

/* Venc registers */

#define VENC_REV_ID				0x00

#define VENC_STATUS				0x04

#define VENC_F_CONTROL				0x08

#define VENC_VIDOUT_CTRL			0x10

#define VENC_SYNC_CTRL				0x14

#define VENC_LLEN				0x1C

#define VENC_FLENS				0x20

#define VENC_HFLTR_CTRL				0x24

#define VENC_CC_CARR_WSS_CARR			0x28

#define VENC_C_PHASE				0x2C

#define VENC_GAIN_U				0x30

#define VENC_GAIN_V				0x34

#define VENC_GAIN_Y				0x38

#define VENC_BLACK_LEVEL			0x3C

#define VENC_BLANK_LEVEL			0x40

#define VENC_X_COLOR				0x44

#define VENC_M_CONTROL				0x48

#define VENC_BSTAMP_WSS_DATA			0x4C

#define VENC_S_CARR				0x50

#define VENC_LINE21				0x54

#define VENC_LN_SEL				0x58

#define VENC_L21__WC_CTL			0x5C

#define VENC_HTRIGGER_VTRIGGER			0x60

#define VENC_SAVID__EAVID			0x64

#define VENC_FLEN__FAL				0x68

#define VENC_LAL__PHASE_RESET			0x6C

#define VENC_HS_INT_START_STOP_X		0x70

#define VENC_HS_EXT_START_STOP_X		0x74

#define VENC_VS_INT_START_X			0x78

#define VENC_VS_INT_STOP_X__VS_INT_START_Y	0x7C

#define VENC_VS_INT_STOP_Y__VS_EXT_START_X	0x80

#define VENC_VS_EXT_STOP_X__VS_EXT_START_Y	0x84

#define VENC_VS_EXT_STOP_Y			0x88

#define VENC_AVID_START_STOP_X			0x90

#define VENC_AVID_START_STOP_Y			0x94

#define VENC_FID_INT_START_X__FID_INT_START_Y	0xA0

#define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X	0xA4

#define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y	0xA8

#define VENC_TVDETGP_INT_START_STOP_X		0xB0

#define VENC_TVDETGP_INT_START_STOP_Y		0xB4

#define VENC_GEN_CTRL				0xB8

#define VENC_OUTPUT_CONTROL			0xC4

#define VENC_OUTPUT_TEST			0xC8

#define VENC_DAC_B__DAC_C			0xC8


struct venc_config {
	
u32 f_control;
	
u32 vidout_ctrl;
	
u32 sync_ctrl;
	
u32 llen;
	
u32 flens;
	
u32 hfltr_ctrl;
	
u32 cc_carr_wss_carr;
	
u32 c_phase;
	
u32 gain_u;
	
u32 gain_v;
	
u32 gain_y;
	
u32 black_level;
	
u32 blank_level;
	
u32 x_color;
	
u32 m_control;
	
u32 bstamp_wss_data;
	
u32 s_carr;
	
u32 line21;
	
u32 ln_sel;
	
u32 l21__wc_ctl;
	
u32 htrigger_vtrigger;
	
u32 savid__eavid;
	
u32 flen__fal;
	
u32 lal__phase_reset;
	
u32 hs_int_start_stop_x;
	
u32 hs_ext_start_stop_x;
	
u32 vs_int_start_x;
	
u32 vs_int_stop_x__vs_int_start_y;
	
u32 vs_int_stop_y__vs_ext_start_x;
	
u32 vs_ext_stop_x__vs_ext_start_y;
	
u32 vs_ext_stop_y;
	
u32 avid_start_stop_x;
	
u32 avid_start_stop_y;
	
u32 fid_int_start_x__fid_int_start_y;
	
u32 fid_int_offset_y__fid_ext_start_x;
	
u32 fid_ext_start_y__fid_ext_offset_y;
	
u32 tvdetgp_int_start_stop_x;
	
u32 tvdetgp_int_start_stop_y;
	
u32 gen_ctrl;
};

/* from TRM */

static const struct venc_config venc_config_pal_trm = {
	.f_control				= 0,
	.vidout_ctrl				= 1,
	.sync_ctrl				= 0x40,
	.llen					= 0x35F, /* 863 */
	.flens					= 0x270, /* 624 */
	.hfltr_ctrl				= 0,
	.cc_carr_wss_carr			= 0x2F7225ED,
	.c_phase				= 0,
	.gain_u					= 0x111,
	.gain_v					= 0x181,
	.gain_y					= 0x140,
	.black_level				= 0x3B,
	.blank_level				= 0x3B,
	.x_color				= 0x7,
	.m_control				= 0x2,
	.bstamp_wss_data			= 0x3F,
	.s_carr					= 0x2A098ACB,
	.line21					= 0,
	.ln_sel					= 0x01290015,
	.l21__wc_ctl				= 0x0000F603,
	.htrigger_vtrigger			= 0,

	.savid__eavid				= 0x06A70108,
	.flen__fal				= 0x00180270,
	.lal__phase_reset			= 0x00040135,
	.hs_int_start_stop_x			= 0x00880358,
	.hs_ext_start_stop_x			= 0x000F035F,
	.vs_int_start_x				= 0x01A70000,
	.vs_int_stop_x__vs_int_start_y		= 0x000001A7,
	.vs_int_stop_y__vs_ext_start_x		= 0x01AF0000,
	.vs_ext_stop_x__vs_ext_start_y		= 0x000101AF,
	.vs_ext_stop_y				= 0x00000025,
	.avid_start_stop_x			= 0x03530083,
	.avid_start_stop_y			= 0x026C002E,
	.fid_int_start_x__fid_int_start_y	= 0x0001008A,
	.fid_int_offset_y__fid_ext_start_x	= 0x002E0138,
	.fid_ext_start_y__fid_ext_offset_y	= 0x01380001,

	.tvdetgp_int_start_stop_x		= 0x00140001,
	.tvdetgp_int_start_stop_y		= 0x00010001,
	.gen_ctrl				= 0x00FF0000,
};

/* from TRM */

static const struct venc_config venc_config_ntsc_trm = {
	.f_control				= 0,
	.vidout_ctrl				= 1,
	.sync_ctrl				= 0x8040,
	.llen					= 0x359,
	.flens					= 0x20C,
	.hfltr_ctrl				= 0,
	.cc_carr_wss_carr			= 0x043F2631,
	.c_phase				= 0,
	.gain_u					= 0x102,
	.gain_v					= 0x16C,
	.gain_y					= 0x12F,
	.black_level				= 0x43,
	.blank_level				= 0x38,
	.x_color				= 0x7,
	.m_control				= 0x1,
	.bstamp_wss_data			= 0x38,
	.s_carr					= 0x21F07C1F,
	.line21					= 0,
	.ln_sel					= 0x01310011,
	.l21__wc_ctl				= 0x0000F003,
	.htrigger_vtrigger			= 0,

	.savid__eavid				= 0x069300F4,
	.flen__fal				= 0x0016020C,
	.lal__phase_reset			= 0x00060107,
	.hs_int_start_stop_x			= 0x008E0350,
	.hs_ext_start_stop_x			= 0x000F0359,
	.vs_int_start_x				= 0x01A00000,
	.vs_int_stop_x__vs_int_start_y		= 0x020701A0,
	.vs_int_stop_y__vs_ext_start_x		= 0x01AC0024,
	.vs_ext_stop_x__vs_ext_start_y		= 0x020D01AC,
	.vs_ext_stop_y				= 0x00000006,
	.avid_start_stop_x			= 0x03480078,
	.avid_start_stop_y			= 0x02060024,
	.fid_int_start_x__fid_int_start_y	= 0x0001008A,
	.fid_int_offset_y__fid_ext_start_x	= 0x01AC0106,
	.fid_ext_start_y__fid_ext_offset_y	= 0x01060006,

	.tvdetgp_int_start_stop_x		= 0x00140001,
	.tvdetgp_int_start_stop_y		= 0x00010001,
	.gen_ctrl				= 0x00F90000,
};


static const struct venc_config venc_config_pal_bdghi = {
	.f_control				= 0,
	.vidout_ctrl				= 0,
	.sync_ctrl				= 0,
	.hfltr_ctrl				= 0,
	.x_color				= 0,
	.line21					= 0,
	.ln_sel					= 21,
	.htrigger_vtrigger			= 0,
	.tvdetgp_int_start_stop_x		= 0x00140001,
	.tvdetgp_int_start_stop_y		= 0x00010001,
	.gen_ctrl				= 0x00FB0000,

	.llen					= 864-1,
	.flens					= 625-1,
	.cc_carr_wss_carr			= 0x2F7625ED,
	.c_phase				= 0xDF,
	.gain_u					= 0x111,
	.gain_v					= 0x181,
	.gain_y					= 0x140,
	.black_level				= 0x3e,
	.blank_level				= 0x3e,
	.m_control				= 0<<2 | 1<<1,
	.bstamp_wss_data			= 0x42,
	.s_carr					= 0x2a098acb,
	.l21__wc_ctl				= 0<<13 | 0x16<<8 | 0<<0,
	.savid__eavid				= 0x06A70108,
	.flen__fal				= 23<<16 | 624<<0,
	.lal__phase_reset			= 2<<17 | 310<<0,
	.hs_int_start_stop_x			= 0x00920358,
	.hs_ext_start_stop_x			= 0x000F035F,
	.vs_int_start_x				= 0x1a7<<16,
	.vs_int_stop_x__vs_int_start_y		= 0x000601A7,
	.vs_int_stop_y__vs_ext_start_x		= 0x01AF0036,
	.vs_ext_stop_x__vs_ext_start_y		= 0x27101af,
	.vs_ext_stop_y				= 0x05,
	.avid_start_stop_x			= 0x03530082,
	.avid_start_stop_y			= 0x0270002E,
	.fid_int_start_x__fid_int_start_y	= 0x0005008A,
	.fid_int_offset_y__fid_ext_start_x	= 0x002E0138,
	.fid_ext_start_y__fid_ext_offset_y	= 0x01380005,
};


const struct omap_video_timings omap_dss_pal_timings = {
	.x_res		= 720,
	.y_res		= 574,
	.pixelclock	= 13500000,
	.hsw		= 64,
	.hfp		= 12,
	.hbp		= 68,
	.vsw		= 5,
	.vfp		= 5,
	.vbp		= 41,

	.interlace	= true,
};

EXPORT_SYMBOL(omap_dss_pal_timings);


const struct omap_video_timings omap_dss_ntsc_timings = {
	.x_res		= 720,
	.y_res		= 482,
	.pixelclock	= 13500000,
	.hsw		= 64,
	.hfp		= 16,
	.hbp		= 58,
	.vsw		= 6,
	.vfp		= 6,
	.vbp		= 31,

	.interlace	= true,
};

EXPORT_SYMBOL(omap_dss_ntsc_timings);

static struct {
	
struct platform_device *pdev;
	
void __iomem *base;
	
struct mutex venc_lock;
	
u32 wss_data;
	
struct regulator *vdda_dac_reg;

	
struct clk	*tv_dac_clk;

	
struct omap_video_timings timings;
	
enum omap_dss_venc_type type;
	
bool invert_polarity;

	
struct omap_dss_device output;
} 
venc;


static inline void venc_write_reg(int idx, u32 val) { __raw_writel(val, venc.base + idx); }

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static inline u32 venc_read_reg(int idx) { u32 l = __raw_readl(venc.base + idx); return l; }

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static void venc_write_config(const struct venc_config *config) { DSSDBG("write venc conf\n"); venc_write_reg(VENC_LLEN, config->llen); venc_write_reg(VENC_FLENS, config->flens); venc_write_reg(VENC_CC_CARR_WSS_CARR, config->cc_carr_wss_carr); venc_write_reg(VENC_C_PHASE, config->c_phase); venc_write_reg(VENC_GAIN_U, config->gain_u); venc_write_reg(VENC_GAIN_V, config->gain_v); venc_write_reg(VENC_GAIN_Y, config->gain_y); venc_write_reg(VENC_BLACK_LEVEL, config->black_level); venc_write_reg(VENC_BLANK_LEVEL, config->blank_level); venc_write_reg(VENC_M_CONTROL, config->m_control); venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data | venc.wss_data); venc_write_reg(VENC_S_CARR, config->s_carr); venc_write_reg(VENC_L21__WC_CTL, config->l21__wc_ctl); venc_write_reg(VENC_SAVID__EAVID, config->savid__eavid); venc_write_reg(VENC_FLEN__FAL, config->flen__fal); venc_write_reg(VENC_LAL__PHASE_RESET, config->lal__phase_reset); venc_write_reg(VENC_HS_INT_START_STOP_X, config->hs_int_start_stop_x); venc_write_reg(VENC_HS_EXT_START_STOP_X, config->hs_ext_start_stop_x); venc_write_reg(VENC_VS_INT_START_X, config->vs_int_start_x); venc_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y, config->vs_int_stop_x__vs_int_start_y); venc_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X, config->vs_int_stop_y__vs_ext_start_x); venc_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y, config->vs_ext_stop_x__vs_ext_start_y); venc_write_reg(VENC_VS_EXT_STOP_Y, config->vs_ext_stop_y); venc_write_reg(VENC_AVID_START_STOP_X, config->avid_start_stop_x); venc_write_reg(VENC_AVID_START_STOP_Y, config->avid_start_stop_y); venc_write_reg(VENC_FID_INT_START_X__FID_INT_START_Y, config->fid_int_start_x__fid_int_start_y); venc_write_reg(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X, config->fid_int_offset_y__fid_ext_start_x); venc_write_reg(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y, config->fid_ext_start_y__fid_ext_offset_y); venc_write_reg(VENC_DAC_B__DAC_C, venc_read_reg(VENC_DAC_B__DAC_C)); venc_write_reg(VENC_VIDOUT_CTRL, config->vidout_ctrl); venc_write_reg(VENC_HFLTR_CTRL, config->hfltr_ctrl); venc_write_reg(VENC_X_COLOR, config->x_color); venc_write_reg(VENC_LINE21, config->line21); venc_write_reg(VENC_LN_SEL, config->ln_sel); venc_write_reg(VENC_HTRIGGER_VTRIGGER, config->htrigger_vtrigger); venc_write_reg(VENC_TVDETGP_INT_START_STOP_X, config->tvdetgp_int_start_stop_x); venc_write_reg(VENC_TVDETGP_INT_START_STOP_Y, config->tvdetgp_int_start_stop_y); venc_write_reg(VENC_GEN_CTRL, config->gen_ctrl); venc_write_reg(VENC_F_CONTROL, config->f_control); venc_write_reg(VENC_SYNC_CTRL, config->sync_ctrl); }

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static void venc_reset(void) { int t = 1000; venc_write_reg(VENC_F_CONTROL, 1<<8); while (venc_read_reg(VENC_F_CONTROL) & (1<<8)) { if (--t == 0) { DSSERR("Failed to reset venc\n"); return; } } #ifdef CONFIG_FB_OMAP2_DSS_SLEEP_AFTER_VENC_RESET /* the magical sleep that makes things work */ /* XXX more info? What bug this circumvents? */ msleep(20); #endif }

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static int venc_runtime_get(void) { int r; DSSDBG("venc_runtime_get\n"); r = pm_runtime_get_sync(&venc.pdev->dev); WARN_ON(r < 0); return r < 0 ? r : 0; }

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static void venc_runtime_put(void) { int r; DSSDBG("venc_runtime_put\n"); r = pm_runtime_put_sync(&venc.pdev->dev); WARN_ON(r < 0 && r != -ENOSYS); }

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static const struct venc_config *venc_timings_to_config( struct omap_video_timings *timings) { if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0) return &venc_config_pal_trm; if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0) return &venc_config_ntsc_trm; BUG(); return NULL; }

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static int venc_power_on(struct omap_dss_device *dssdev) { struct omap_overlay_manager *mgr = venc.output.manager; u32 l; int r; r = venc_runtime_get(); if (r) goto err0; venc_reset(); venc_write_config(venc_timings_to_config(&venc.timings)); dss_set_venc_output(venc.type); dss_set_dac_pwrdn_bgz(1); l = 0; if (venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE) l |= 1 << 1; else /* S-Video */ l |= (1 << 0) | (1 << 2); if (venc.invert_polarity == false) l |= 1 << 3; venc_write_reg(VENC_OUTPUT_CONTROL, l); dss_mgr_set_timings(mgr, &venc.timings); r = regulator_enable(venc.vdda_dac_reg); if (r) goto err1; r = dss_mgr_enable(mgr); if (r) goto err2; return 0; err2: regulator_disable(venc.vdda_dac_reg); err1: venc_write_reg(VENC_OUTPUT_CONTROL, 0); dss_set_dac_pwrdn_bgz(0); venc_runtime_put(); err0: return r; }

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static void venc_power_off(struct omap_dss_device *dssdev) { struct omap_overlay_manager *mgr = venc.output.manager; venc_write_reg(VENC_OUTPUT_CONTROL, 0); dss_set_dac_pwrdn_bgz(0); dss_mgr_disable(mgr); regulator_disable(venc.vdda_dac_reg); venc_runtime_put(); }

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static int venc_display_enable(struct omap_dss_device *dssdev) { struct omap_dss_device *out = &venc.output; int r; DSSDBG("venc_display_enable\n"); mutex_lock(&venc.venc_lock); if (out->manager == NULL) { DSSERR("Failed to enable display: no output/manager\n"); r = -ENODEV; goto err0; } r = venc_power_on(dssdev); if (r) goto err0; venc.wss_data = 0; mutex_unlock(&venc.venc_lock); return 0; err0: mutex_unlock(&venc.venc_lock); return r; }

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static void venc_display_disable(struct omap_dss_device *dssdev) { DSSDBG("venc_display_disable\n"); mutex_lock(&venc.venc_lock); venc_power_off(dssdev); mutex_unlock(&venc.venc_lock); }

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static void venc_set_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings) { DSSDBG("venc_set_timings\n"); mutex_lock(&venc.venc_lock); /* Reset WSS data when the TV standard changes. */ if (memcmp(&venc.timings, timings, sizeof(*timings))) venc.wss_data = 0; venc.timings = *timings; dispc_set_tv_pclk(13500000); mutex_unlock(&venc.venc_lock); }

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static int venc_check_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings) { DSSDBG("venc_check_timings\n"); if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0) return 0; if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0) return 0; return -EINVAL; }

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static void venc_get_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings) { mutex_lock(&venc.venc_lock); *timings = venc.timings; mutex_unlock(&venc.venc_lock); }

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static u32 venc_get_wss(struct omap_dss_device *dssdev) { /* Invert due to VENC_L21_WC_CTL:INV=1 */ return (venc.wss_data >> 8) ^ 0xfffff; }

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static int venc_set_wss(struct omap_dss_device *dssdev, u32 wss) { const struct venc_config *config; int r; DSSDBG("venc_set_wss\n"); mutex_lock(&venc.venc_lock); config = venc_timings_to_config(&venc.timings); /* Invert due to VENC_L21_WC_CTL:INV=1 */ venc.wss_data = (wss ^ 0xfffff) << 8; r = venc_runtime_get(); if (r) goto err; venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data | venc.wss_data); venc_runtime_put(); err: mutex_unlock(&venc.venc_lock); return r; }

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static void venc_set_type(struct omap_dss_device *dssdev, enum omap_dss_venc_type type) { mutex_lock(&venc.venc_lock); venc.type = type; mutex_unlock(&venc.venc_lock); }

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static void venc_invert_vid_out_polarity(struct omap_dss_device *dssdev, bool invert_polarity) { mutex_lock(&venc.venc_lock); venc.invert_polarity = invert_polarity; mutex_unlock(&venc.venc_lock); }

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static int venc_init_regulator(void) { struct regulator *vdda_dac; if (venc.vdda_dac_reg != NULL) return 0; if (venc.pdev->dev.of_node) vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda"); else vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda_dac"); if (IS_ERR(vdda_dac)) { if (PTR_ERR(vdda_dac) != -EPROBE_DEFER) DSSERR("can't get VDDA_DAC regulator\n"); return PTR_ERR(vdda_dac); } venc.vdda_dac_reg = vdda_dac; return 0; }

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static void venc_dump_regs(struct seq_file *s) { #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r)) if (venc_runtime_get()) return; DUMPREG(VENC_F_CONTROL); DUMPREG(VENC_VIDOUT_CTRL); DUMPREG(VENC_SYNC_CTRL); DUMPREG(VENC_LLEN); DUMPREG(VENC_FLENS); DUMPREG(VENC_HFLTR_CTRL); DUMPREG(VENC_CC_CARR_WSS_CARR); DUMPREG(VENC_C_PHASE); DUMPREG(VENC_GAIN_U); DUMPREG(VENC_GAIN_V); DUMPREG(VENC_GAIN_Y); DUMPREG(VENC_BLACK_LEVEL); DUMPREG(VENC_BLANK_LEVEL); DUMPREG(VENC_X_COLOR); DUMPREG(VENC_M_CONTROL); DUMPREG(VENC_BSTAMP_WSS_DATA); DUMPREG(VENC_S_CARR); DUMPREG(VENC_LINE21); DUMPREG(VENC_LN_SEL); DUMPREG(VENC_L21__WC_CTL); DUMPREG(VENC_HTRIGGER_VTRIGGER); DUMPREG(VENC_SAVID__EAVID); DUMPREG(VENC_FLEN__FAL); DUMPREG(VENC_LAL__PHASE_RESET); DUMPREG(VENC_HS_INT_START_STOP_X); DUMPREG(VENC_HS_EXT_START_STOP_X); DUMPREG(VENC_VS_INT_START_X); DUMPREG(VENC_VS_INT_STOP_X__VS_INT_START_Y); DUMPREG(VENC_VS_INT_STOP_Y__VS_EXT_START_X); DUMPREG(VENC_VS_EXT_STOP_X__VS_EXT_START_Y); DUMPREG(VENC_VS_EXT_STOP_Y); DUMPREG(VENC_AVID_START_STOP_X); DUMPREG(VENC_AVID_START_STOP_Y); DUMPREG(VENC_FID_INT_START_X__FID_INT_START_Y); DUMPREG(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X); DUMPREG(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y); DUMPREG(VENC_TVDETGP_INT_START_STOP_X); DUMPREG(VENC_TVDETGP_INT_START_STOP_Y); DUMPREG(VENC_GEN_CTRL); DUMPREG(VENC_OUTPUT_CONTROL); DUMPREG(VENC_OUTPUT_TEST); venc_runtime_put(); #undef DUMPREG }

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static int venc_get_clocks(struct platform_device *pdev) { struct clk *clk; if (dss_has_feature(FEAT_VENC_REQUIRES_TV_DAC_CLK)) { clk = devm_clk_get(&pdev->dev, "tv_dac_clk"); if (IS_ERR(clk)) { DSSERR("can't get tv_dac_clk\n"); return PTR_ERR(clk); } } else { clk = NULL; } venc.tv_dac_clk = clk; return 0; }

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static int venc_connect(struct omap_dss_device *dssdev, struct omap_dss_device *dst) { struct omap_overlay_manager *mgr; int r; r = venc_init_regulator(); if (r) return r; mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel); if (!mgr) return -ENODEV; r = dss_mgr_connect(mgr, dssdev); if (r) return r; r = omapdss_output_set_device(dssdev, dst); if (r) { DSSERR("failed to connect output to new device: %s\n", dst->name); dss_mgr_disconnect(mgr, dssdev); return r; } return 0; }

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static void venc_disconnect(struct omap_dss_device *dssdev, struct omap_dss_device *dst) { WARN_ON(dst != dssdev->dst); if (dst != dssdev->dst) return; omapdss_output_unset_device(dssdev); if (dssdev->manager) dss_mgr_disconnect(dssdev->manager, dssdev); }

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static const struct omapdss_atv_ops venc_ops = { .connect = venc_connect, .disconnect = venc_disconnect, .enable = venc_display_enable, .disable = venc_display_disable, .check_timings = venc_check_timings, .set_timings = venc_set_timings, .get_timings = venc_get_timings, .set_type = venc_set_type, .invert_vid_out_polarity = venc_invert_vid_out_polarity, .set_wss = venc_set_wss, .get_wss = venc_get_wss, };
static void venc_init_output(struct platform_device *pdev) { struct omap_dss_device *out = &venc.output; out->dev = &pdev->dev; out->id = OMAP_DSS_OUTPUT_VENC; out->output_type = OMAP_DISPLAY_TYPE_VENC; out->name = "venc.0"; out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT; out->ops.atv = &venc_ops; out->owner = THIS_MODULE; omapdss_register_output(out); }

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static void venc_uninit_output(struct platform_device *pdev) { struct omap_dss_device *out = &venc.output; omapdss_unregister_output(out); }

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static int venc_probe_of(struct platform_device *pdev) { struct device_node *node = pdev->dev.of_node; struct device_node *ep; u32 channels; int r; ep = omapdss_of_get_first_endpoint(node); if (!ep) return 0; venc.invert_polarity = of_property_read_bool(ep, "ti,invert-polarity"); r = of_property_read_u32(ep, "ti,channels", &channels); if (r) { dev_err(&pdev->dev, "failed to read property 'ti,channels': %d\n", r); goto err; } switch (channels) { case 1: venc.type = OMAP_DSS_VENC_TYPE_COMPOSITE; break; case 2: venc.type = OMAP_DSS_VENC_TYPE_SVIDEO; break; default: dev_err(&pdev->dev, "bad channel propert '%d'\n", channels); r = -EINVAL; goto err; } of_node_put(ep); return 0; err: of_node_put(ep); return 0; }

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/* VENC HW IP initialisation */
static int venc_bind(struct device *dev, struct device *master, void *data) { struct platform_device *pdev = to_platform_device(dev); u8 rev_id; struct resource *venc_mem; int r; venc.pdev = pdev; mutex_init(&venc.venc_lock); venc.wss_data = 0; venc_mem = platform_get_resource(venc.pdev, IORESOURCE_MEM, 0); if (!venc_mem) { DSSERR("can't get IORESOURCE_MEM VENC\n"); return -EINVAL; } venc.base = devm_ioremap(&pdev->dev, venc_mem->start, resource_size(venc_mem)); if (!venc.base) { DSSERR("can't ioremap VENC\n"); return -ENOMEM; } r = venc_get_clocks(pdev); if (r) return r; pm_runtime_enable(&pdev->dev); r = venc_runtime_get(); if (r) goto err_runtime_get; rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff); dev_dbg(&pdev->dev, "OMAP VENC rev %d\n", rev_id); venc_runtime_put(); if (pdev->dev.of_node) { r = venc_probe_of(pdev); if (r) { DSSERR("Invalid DT data\n"); goto err_probe_of; } } dss_debugfs_create_file("venc", venc_dump_regs); venc_init_output(pdev); return 0; err_probe_of: err_runtime_get: pm_runtime_disable(&pdev->dev); return r; }

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static void venc_unbind(struct device *dev, struct device *master, void *data) { struct platform_device *pdev = to_platform_device(dev); venc_uninit_output(pdev); pm_runtime_disable(&pdev->dev); }

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static const struct component_ops venc_component_ops = { .bind = venc_bind, .unbind = venc_unbind, };
static int venc_probe(struct platform_device *pdev) { return component_add(&pdev->dev, &venc_component_ops); }

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static int venc_remove(struct platform_device *pdev) { component_del(&pdev->dev, &venc_component_ops); return 0; }

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static int venc_runtime_suspend(struct device *dev) { if (venc.tv_dac_clk) clk_disable_unprepare(venc.tv_dac_clk); dispc_runtime_put(); return 0; }

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static int venc_runtime_resume(struct device *dev) { int r; r = dispc_runtime_get(); if (r < 0) return r; if (venc.tv_dac_clk) clk_prepare_enable(venc.tv_dac_clk); return 0; }

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static const struct dev_pm_ops venc_pm_ops = { .runtime_suspend = venc_runtime_suspend, .runtime_resume = venc_runtime_resume, }; static const struct of_device_id venc_of_match[] = { { .compatible = "ti,omap2-venc", }, { .compatible = "ti,omap3-venc", }, { .compatible = "ti,omap4-venc", }, {}, }; static struct platform_driver omap_venchw_driver = { .probe = venc_probe, .remove = venc_remove, .driver = { .name = "omapdss_venc", .pm = &venc_pm_ops, .of_match_table = venc_of_match, .suppress_bind_attrs = true, }, };
int __init venc_init_platform_driver(void) { return platform_driver_register(&omap_venchw_driver); }

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void venc_uninit_platform_driver(void) { platform_driver_unregister(&omap_venchw_driver); }

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Tomi Valkeinen402999.98%266.67%
Peter Ujfalusi10.02%133.33%
Total4030100.00%3100.00%
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