1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* Texas Instruments Triple 8-/10-BIT 165-/110-MSPS Video and Graphics 3 * Digitizer with Horizontal PLL registers 4 * 5 * Copyright (C) 2009 Texas Instruments Inc 6 * Author: Santiago Nunez-Corrales <santiago.nunez@ridgerun.com> 7 * 8 * This code is partially based upon the TVP5150 driver 9 * written by Mauro Carvalho Chehab <mchehab@kernel.org>, 10 * the TVP514x driver written by Vaibhav Hiremath <hvaibhav@ti.com> 11 * and the TVP7002 driver in the TI LSP 2.10.00.14. Revisions by 12 * Muralidharan Karicheri and Snehaprabha Narnakaje (TI). 13 */ 14 #include <linux/delay.h> 15 #include <linux/i2c.h> 16 #include <linux/slab.h> 17 #include <linux/videodev2.h> 18 #include <linux/module.h> 19 #include <linux/of.h> 20 #include <linux/of_graph.h> 21 #include <linux/v4l2-dv-timings.h> 22 #include <media/i2c/tvp7002.h> 23 #include <media/v4l2-async.h> 24 #include <media/v4l2-device.h> 25 #include <media/v4l2-common.h> 26 #include <media/v4l2-ctrls.h> 27 #include <media/v4l2-fwnode.h> 28 29 #include "tvp7002_reg.h" 30 31 MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver"); 32 MODULE_AUTHOR("Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>"); 33 MODULE_LICENSE("GPL"); 34 35 /* I2C retry attempts */ 36 #define I2C_RETRY_COUNT (5) 37 38 /* End of registers */ 39 #define TVP7002_EOR 0x5c 40 41 /* Read write definition for registers */ 42 #define TVP7002_READ 0 43 #define TVP7002_WRITE 1 44 #define TVP7002_RESERVED 2 45 46 /* Interlaced vs progressive mask and shift */ 47 #define TVP7002_IP_SHIFT 5 48 #define TVP7002_INPR_MASK (0x01 << TVP7002_IP_SHIFT) 49 50 /* Shift for CPL and LPF registers */ 51 #define TVP7002_CL_SHIFT 8 52 #define TVP7002_CL_MASK 0x0f 53 54 /* Debug functions */ 55 static bool debug; 56 module_param(debug, bool, 0644); 57 MODULE_PARM_DESC(debug, "Debug level (0-2)"); 58 59 /* Structure for register values */ 60 struct i2c_reg_value { 61 u8 reg; 62 u8 value; 63 u8 type; 64 }; 65 66 /* 67 * Register default values (according to tvp7002 datasheet) 68 * In the case of read-only registers, the value (0xff) is 69 * never written. R/W functionality is controlled by the 70 * writable bit in the register struct definition. 71 */ 72 static const struct i2c_reg_value tvp7002_init_default[] = { 73 { TVP7002_CHIP_REV, 0xff, TVP7002_READ }, 74 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, 75 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE }, 76 { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, 77 { TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE }, 78 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, 79 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, 80 { TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE }, 81 { TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE }, 82 { TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE }, 83 { TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE }, 84 { TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, 85 { TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, 86 { TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, 87 { TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE }, 88 { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE }, 89 { TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE }, 90 { TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE }, 91 { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, 92 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, 93 { TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ }, 94 { TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE }, 95 { TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE }, 96 { TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE }, 97 { TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE }, 98 { TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE }, 99 { TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE }, 100 { TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE }, 101 { TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE }, 102 { TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE }, 103 { TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE }, 104 { TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE }, 105 { TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE }, 106 { TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE }, 107 { TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE }, 108 { TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, 109 { TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, 110 { TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, 111 { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE }, 112 { TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ }, 113 { TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE }, 114 { 0x29, 0x08, TVP7002_RESERVED }, 115 { TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE }, 116 /* PWR_CTL is controlled only by the probe and reset functions */ 117 { TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED }, 118 { TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE }, 119 { TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE }, 120 { TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE }, 121 { TVP7002_RGB_COARSE_CLAMP_CTL, 0x8c, TVP7002_WRITE }, 122 { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE }, 123 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, 124 { 0x32, 0x18, TVP7002_RESERVED }, 125 { 0x33, 0x60, TVP7002_RESERVED }, 126 { TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED }, 127 { TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE }, 128 { TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE }, 129 { TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ }, 130 { TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ }, 131 { TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ }, 132 { TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ }, 133 { TVP7002_HSYNC_W, 0xff, TVP7002_READ }, 134 { TVP7002_VSYNC_W, 0xff, TVP7002_READ }, 135 { TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE }, 136 { 0x3e, 0x60, TVP7002_RESERVED }, 137 { TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE }, 138 { TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE }, 139 { TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, 140 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE }, 141 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, 142 { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, 143 { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, 144 { TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE }, 145 { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, 146 { TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, 147 { TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, 148 { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE }, 149 { TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE }, 150 { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE }, 151 { TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE }, 152 { TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE }, 153 { TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE }, 154 { TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE }, 155 { TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE }, 156 { TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE }, 157 { TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE }, 158 { TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE }, 159 { TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE }, 160 { TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE }, 161 { TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE }, 162 { TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE }, 163 { TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE }, 164 { TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE }, 165 { TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE }, 166 /* This signals end of register values */ 167 { TVP7002_EOR, 0xff, TVP7002_RESERVED } 168 }; 169 170 /* Register parameters for 480P */ 171 static const struct i2c_reg_value tvp7002_parms_480P[] = { 172 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE }, 173 { TVP7002_HPLL_FDBK_DIV_LSBS, 0xa0, TVP7002_WRITE }, 174 { TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE }, 175 { TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE }, 176 { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, 177 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE }, 178 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, 179 { TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE }, 180 { TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE }, 181 { TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE }, 182 { TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE }, 183 { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, 184 { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, 185 { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, 186 { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, 187 { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, 188 { TVP7002_EOR, 0xff, TVP7002_RESERVED } 189 }; 190 191 /* Register parameters for 576P */ 192 static const struct i2c_reg_value tvp7002_parms_576P[] = { 193 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE }, 194 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, 195 { TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE }, 196 { TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE }, 197 { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, 198 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE }, 199 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, 200 { TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, 201 { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, 202 { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, 203 { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, 204 { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, 205 { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, 206 { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, 207 { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, 208 { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, 209 { TVP7002_EOR, 0xff, TVP7002_RESERVED } 210 }; 211 212 /* Register parameters for 1080I60 */ 213 static const struct i2c_reg_value tvp7002_parms_1080I60[] = { 214 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, 215 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE }, 216 { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, 217 { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, 218 { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, 219 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, 220 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, 221 { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, 222 { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, 223 { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, 224 { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, 225 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, 226 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, 227 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, 228 { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, 229 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, 230 { TVP7002_EOR, 0xff, TVP7002_RESERVED } 231 }; 232 233 /* Register parameters for 1080P60 */ 234 static const struct i2c_reg_value tvp7002_parms_1080P60[] = { 235 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, 236 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE }, 237 { TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE }, 238 { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, 239 { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, 240 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, 241 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, 242 { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, 243 { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, 244 { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, 245 { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, 246 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, 247 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, 248 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, 249 { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, 250 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, 251 { TVP7002_EOR, 0xff, TVP7002_RESERVED } 252 }; 253 254 /* Register parameters for 1080I50 */ 255 static const struct i2c_reg_value tvp7002_parms_1080I50[] = { 256 { TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE }, 257 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, 258 { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, 259 { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, 260 { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, 261 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, 262 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, 263 { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, 264 { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, 265 { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, 266 { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, 267 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, 268 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, 269 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, 270 { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, 271 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, 272 { TVP7002_EOR, 0xff, TVP7002_RESERVED } 273 }; 274 275 /* Register parameters for 720P60 */ 276 static const struct i2c_reg_value tvp7002_parms_720P60[] = { 277 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, 278 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE }, 279 { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, 280 { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, 281 { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, 282 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, 283 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, 284 { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, 285 { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, 286 { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, 287 { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, 288 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, 289 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, 290 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, 291 { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, 292 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, 293 { TVP7002_EOR, 0xff, TVP7002_RESERVED } 294 }; 295 296 /* Register parameters for 720P50 */ 297 static const struct i2c_reg_value tvp7002_parms_720P50[] = { 298 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE }, 299 { TVP7002_HPLL_FDBK_DIV_LSBS, 0xc0, TVP7002_WRITE }, 300 { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, 301 { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, 302 { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, 303 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, 304 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, 305 { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, 306 { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, 307 { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, 308 { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, 309 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, 310 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, 311 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, 312 { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, 313 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, 314 { TVP7002_EOR, 0xff, TVP7002_RESERVED } 315 }; 316 317 /* Timings definition for handling device operation */ 318 struct tvp7002_timings_definition { 319 struct v4l2_dv_timings timings; 320 const struct i2c_reg_value *p_settings; 321 enum v4l2_colorspace color_space; 322 enum v4l2_field scanmode; 323 u16 progressive; 324 u16 lines_per_frame; 325 u16 cpl_min; 326 u16 cpl_max; 327 }; 328 329 /* Struct list for digital video timings */ 330 static const struct tvp7002_timings_definition tvp7002_timings[] = { 331 { 332 V4L2_DV_BT_CEA_1280X720P60, 333 tvp7002_parms_720P60, 334 V4L2_COLORSPACE_REC709, 335 V4L2_FIELD_NONE, 336 1, 337 0x2EE, 338 135, 339 153 340 }, 341 { 342 V4L2_DV_BT_CEA_1920X1080I60, 343 tvp7002_parms_1080I60, 344 V4L2_COLORSPACE_REC709, 345 V4L2_FIELD_INTERLACED, 346 0, 347 0x465, 348 181, 349 205 350 }, 351 { 352 V4L2_DV_BT_CEA_1920X1080I50, 353 tvp7002_parms_1080I50, 354 V4L2_COLORSPACE_REC709, 355 V4L2_FIELD_INTERLACED, 356 0, 357 0x465, 358 217, 359 245 360 }, 361 { 362 V4L2_DV_BT_CEA_1280X720P50, 363 tvp7002_parms_720P50, 364 V4L2_COLORSPACE_REC709, 365 V4L2_FIELD_NONE, 366 1, 367 0x2EE, 368 163, 369 183 370 }, 371 { 372 V4L2_DV_BT_CEA_1920X1080P60, 373 tvp7002_parms_1080P60, 374 V4L2_COLORSPACE_REC709, 375 V4L2_FIELD_NONE, 376 1, 377 0x465, 378 90, 379 102 380 }, 381 { 382 V4L2_DV_BT_CEA_720X480P59_94, 383 tvp7002_parms_480P, 384 V4L2_COLORSPACE_SMPTE170M, 385 V4L2_FIELD_NONE, 386 1, 387 0x20D, 388 0xffff, 389 0xffff 390 }, 391 { 392 V4L2_DV_BT_CEA_720X576P50, 393 tvp7002_parms_576P, 394 V4L2_COLORSPACE_SMPTE170M, 395 V4L2_FIELD_NONE, 396 1, 397 0x271, 398 0xffff, 399 0xffff 400 } 401 }; 402 403 #define NUM_TIMINGS ARRAY_SIZE(tvp7002_timings) 404 405 /* Device definition */ 406 struct tvp7002 { 407 struct v4l2_subdev sd; 408 struct v4l2_ctrl_handler hdl; 409 const struct tvp7002_config *pdata; 410 411 int ver; 412 int streaming; 413 414 const struct tvp7002_timings_definition *current_timings; 415 struct media_pad pad; 416 }; 417 418 /* 419 * to_tvp7002 - Obtain device handler TVP7002 420 * @sd: ptr to v4l2_subdev struct 421 * 422 * Returns device handler tvp7002. 423 */ 424 static inline struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd) 425 { 426 return container_of(sd, struct tvp7002, sd); 427 } 428 429 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) 430 { 431 return &container_of(ctrl->handler, struct tvp7002, hdl)->sd; 432 } 433 434 /* 435 * tvp7002_read - Read a value from a register in an TVP7002 436 * @sd: ptr to v4l2_subdev struct 437 * @addr: TVP7002 register address 438 * @dst: pointer to 8-bit destination 439 * 440 * Returns value read if successful, or non-zero (-1) otherwise. 441 */ 442 static int tvp7002_read(struct v4l2_subdev *sd, u8 addr, u8 *dst) 443 { 444 struct i2c_client *c = v4l2_get_subdevdata(sd); 445 int retry; 446 int error; 447 448 for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { 449 error = i2c_smbus_read_byte_data(c, addr); 450 451 if (error >= 0) { 452 *dst = (u8)error; 453 return 0; 454 } 455 456 msleep_interruptible(10); 457 } 458 v4l2_err(sd, "TVP7002 read error %d\n", error); 459 return error; 460 } 461 462 /* 463 * tvp7002_read_err() - Read a register value with error code 464 * @sd: pointer to standard V4L2 sub-device structure 465 * @reg: destination register 466 * @val: value to be read 467 * @err: pointer to error value 468 * 469 * Read a value in a register and save error value in pointer. 470 * Also update the register table if successful 471 */ 472 static inline void tvp7002_read_err(struct v4l2_subdev *sd, u8 reg, 473 u8 *dst, int *err) 474 { 475 if (!*err) 476 *err = tvp7002_read(sd, reg, dst); 477 } 478 479 /* 480 * tvp7002_write() - Write a value to a register in TVP7002 481 * @sd: ptr to v4l2_subdev struct 482 * @addr: TVP7002 register address 483 * @value: value to be written to the register 484 * 485 * Write a value to a register in an TVP7002 decoder device. 486 * Returns zero if successful, or non-zero otherwise. 487 */ 488 static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value) 489 { 490 struct i2c_client *c; 491 int retry; 492 int error; 493 494 c = v4l2_get_subdevdata(sd); 495 496 for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { 497 error = i2c_smbus_write_byte_data(c, addr, value); 498 499 if (error >= 0) 500 return 0; 501 502 v4l2_warn(sd, "Write: retry ... %d\n", retry); 503 msleep_interruptible(10); 504 } 505 v4l2_err(sd, "TVP7002 write error %d\n", error); 506 return error; 507 } 508 509 /* 510 * tvp7002_write_err() - Write a register value with error code 511 * @sd: pointer to standard V4L2 sub-device structure 512 * @reg: destination register 513 * @val: value to be written 514 * @err: pointer to error value 515 * 516 * Write a value in a register and save error value in pointer. 517 * Also update the register table if successful 518 */ 519 static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg, 520 u8 val, int *err) 521 { 522 if (!*err) 523 *err = tvp7002_write(sd, reg, val); 524 } 525 526 /* 527 * tvp7002_write_inittab() - Write initialization values 528 * @sd: ptr to v4l2_subdev struct 529 * @regs: ptr to i2c_reg_value struct 530 * 531 * Write initialization values. 532 * Returns zero or -EINVAL if read operation fails. 533 */ 534 static int tvp7002_write_inittab(struct v4l2_subdev *sd, 535 const struct i2c_reg_value *regs) 536 { 537 int error = 0; 538 539 /* Initialize the first (defined) registers */ 540 while (TVP7002_EOR != regs->reg) { 541 if (TVP7002_WRITE == regs->type) 542 tvp7002_write_err(sd, regs->reg, regs->value, &error); 543 regs++; 544 } 545 546 return error; 547 } 548 549 static int tvp7002_s_dv_timings(struct v4l2_subdev *sd, 550 struct v4l2_dv_timings *dv_timings) 551 { 552 struct tvp7002 *device = to_tvp7002(sd); 553 const struct v4l2_bt_timings *bt = &dv_timings->bt; 554 int i; 555 556 if (dv_timings->type != V4L2_DV_BT_656_1120) 557 return -EINVAL; 558 for (i = 0; i < NUM_TIMINGS; i++) { 559 const struct v4l2_bt_timings *t = &tvp7002_timings[i].timings.bt; 560 561 if (!memcmp(bt, t, &bt->standards - &bt->width)) { 562 device->current_timings = &tvp7002_timings[i]; 563 return tvp7002_write_inittab(sd, tvp7002_timings[i].p_settings); 564 } 565 } 566 return -EINVAL; 567 } 568 569 static int tvp7002_g_dv_timings(struct v4l2_subdev *sd, 570 struct v4l2_dv_timings *dv_timings) 571 { 572 struct tvp7002 *device = to_tvp7002(sd); 573 574 *dv_timings = device->current_timings->timings; 575 return 0; 576 } 577 578 /* 579 * tvp7002_s_ctrl() - Set a control 580 * @ctrl: ptr to v4l2_ctrl struct 581 * 582 * Set a control in TVP7002 decoder device. 583 * Returns zero when successful or -EINVAL if register access fails. 584 */ 585 static int tvp7002_s_ctrl(struct v4l2_ctrl *ctrl) 586 { 587 struct v4l2_subdev *sd = to_sd(ctrl); 588 int error = 0; 589 590 switch (ctrl->id) { 591 case V4L2_CID_GAIN: 592 tvp7002_write_err(sd, TVP7002_R_FINE_GAIN, ctrl->val, &error); 593 tvp7002_write_err(sd, TVP7002_G_FINE_GAIN, ctrl->val, &error); 594 tvp7002_write_err(sd, TVP7002_B_FINE_GAIN, ctrl->val, &error); 595 return error; 596 } 597 return -EINVAL; 598 } 599 600 /* 601 * tvp7002_query_dv() - query DV timings 602 * @sd: pointer to standard V4L2 sub-device structure 603 * @index: index into the tvp7002_timings array 604 * 605 * Returns the current DV timings detected by TVP7002. If no active input is 606 * detected, returns -EINVAL 607 */ 608 static int tvp7002_query_dv(struct v4l2_subdev *sd, int *index) 609 { 610 const struct tvp7002_timings_definition *timings = tvp7002_timings; 611 u8 progressive; 612 u32 lpfr; 613 u32 cpln; 614 int error = 0; 615 u8 lpf_lsb; 616 u8 lpf_msb; 617 u8 cpl_lsb; 618 u8 cpl_msb; 619 620 /* Return invalid index if no active input is detected */ 621 *index = NUM_TIMINGS; 622 623 /* Read standards from device registers */ 624 tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error); 625 tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb, &error); 626 627 if (error < 0) 628 return error; 629 630 tvp7002_read_err(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb, &error); 631 tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error); 632 633 if (error < 0) 634 return error; 635 636 /* Get lines per frame, clocks per line and interlaced/progresive */ 637 lpfr = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) << TVP7002_CL_SHIFT); 638 cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT); 639 progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT; 640 641 /* Do checking of video modes */ 642 for (*index = 0; *index < NUM_TIMINGS; (*index)++, timings++) 643 if (lpfr == timings->lines_per_frame && 644 progressive == timings->progressive) { 645 if (timings->cpl_min == 0xffff) 646 break; 647 if (cpln >= timings->cpl_min && cpln <= timings->cpl_max) 648 break; 649 } 650 651 if (*index == NUM_TIMINGS) { 652 v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n", 653 lpfr, cpln); 654 return -ENOLINK; 655 } 656 657 /* Update lines per frame and clocks per line info */ 658 v4l2_dbg(1, debug, sd, "detected timings: %d\n", *index); 659 return 0; 660 } 661 662 static int tvp7002_query_dv_timings(struct v4l2_subdev *sd, 663 struct v4l2_dv_timings *timings) 664 { 665 int index; 666 int err = tvp7002_query_dv(sd, &index); 667 668 if (err) 669 return err; 670 *timings = tvp7002_timings[index].timings; 671 return 0; 672 } 673 674 #ifdef CONFIG_VIDEO_ADV_DEBUG 675 /* 676 * tvp7002_g_register() - Get the value of a register 677 * @sd: ptr to v4l2_subdev struct 678 * @reg: ptr to v4l2_dbg_register struct 679 * 680 * Get the value of a TVP7002 decoder device register. 681 * Returns zero when successful, -EINVAL if register read fails or 682 * access to I2C client fails. 683 */ 684 static int tvp7002_g_register(struct v4l2_subdev *sd, 685 struct v4l2_dbg_register *reg) 686 { 687 u8 val; 688 int ret; 689 690 ret = tvp7002_read(sd, reg->reg & 0xff, &val); 691 if (ret < 0) 692 return ret; 693 reg->val = val; 694 reg->size = 1; 695 return 0; 696 } 697 698 /* 699 * tvp7002_s_register() - set a control 700 * @sd: ptr to v4l2_subdev struct 701 * @reg: ptr to v4l2_dbg_register struct 702 * 703 * Get the value of a TVP7002 decoder device register. 704 * Returns zero when successful, -EINVAL if register read fails. 705 */ 706 static int tvp7002_s_register(struct v4l2_subdev *sd, 707 const struct v4l2_dbg_register *reg) 708 { 709 return tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff); 710 } 711 #endif 712 713 /* 714 * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream 715 * @sd: pointer to standard V4L2 sub-device structure 716 * @enable: streaming enable or disable 717 * 718 * Sets streaming to enable or disable, if possible. 719 */ 720 static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable) 721 { 722 struct tvp7002 *device = to_tvp7002(sd); 723 int error; 724 725 if (device->streaming == enable) 726 return 0; 727 728 /* low impedance: on, high impedance: off */ 729 error = tvp7002_write(sd, TVP7002_MISC_CTL_2, enable ? 0x00 : 0x03); 730 if (error) { 731 v4l2_dbg(1, debug, sd, "Fail to set streaming\n"); 732 return error; 733 } 734 735 device->streaming = enable; 736 return 0; 737 } 738 739 /* 740 * tvp7002_log_status() - Print information about register settings 741 * @sd: ptr to v4l2_subdev struct 742 * 743 * Log register values of a TVP7002 decoder device. 744 * Returns zero or -EINVAL if read operation fails. 745 */ 746 static int tvp7002_log_status(struct v4l2_subdev *sd) 747 { 748 struct tvp7002 *device = to_tvp7002(sd); 749 const struct v4l2_bt_timings *bt; 750 int detected; 751 752 /* Find my current timings */ 753 tvp7002_query_dv(sd, &detected); 754 755 bt = &device->current_timings->timings.bt; 756 v4l2_info(sd, "Selected DV Timings: %ux%u\n", bt->width, bt->height); 757 if (detected == NUM_TIMINGS) { 758 v4l2_info(sd, "Detected DV Timings: None\n"); 759 } else { 760 bt = &tvp7002_timings[detected].timings.bt; 761 v4l2_info(sd, "Detected DV Timings: %ux%u\n", 762 bt->width, bt->height); 763 } 764 v4l2_info(sd, "Streaming enabled: %s\n", 765 device->streaming ? "yes" : "no"); 766 767 /* Print the current value of the gain control */ 768 v4l2_ctrl_handler_log_status(&device->hdl, sd->name); 769 770 return 0; 771 } 772 773 static int tvp7002_enum_dv_timings(struct v4l2_subdev *sd, 774 struct v4l2_enum_dv_timings *timings) 775 { 776 if (timings->pad != 0) 777 return -EINVAL; 778 779 /* Check requested format index is within range */ 780 if (timings->index >= NUM_TIMINGS) 781 return -EINVAL; 782 783 timings->timings = tvp7002_timings[timings->index].timings; 784 return 0; 785 } 786 787 static const struct v4l2_ctrl_ops tvp7002_ctrl_ops = { 788 .s_ctrl = tvp7002_s_ctrl, 789 }; 790 791 /* 792 * tvp7002_enum_mbus_code() - Enum supported digital video format on pad 793 * @sd: pointer to standard V4L2 sub-device structure 794 * @sd_state: V4L2 subdev state 795 * @code: pointer to subdev enum mbus code struct 796 * 797 * Enumerate supported digital video formats for pad. 798 */ 799 static int 800 tvp7002_enum_mbus_code(struct v4l2_subdev *sd, 801 struct v4l2_subdev_state *sd_state, 802 struct v4l2_subdev_mbus_code_enum *code) 803 { 804 /* Check requested format index is within range */ 805 if (code->index != 0) 806 return -EINVAL; 807 808 code->code = MEDIA_BUS_FMT_YUYV10_1X20; 809 810 return 0; 811 } 812 813 /* 814 * tvp7002_get_pad_format() - get video format on pad 815 * @sd: pointer to standard V4L2 sub-device structure 816 * @sd_state: V4L2 subdev state 817 * @fmt: pointer to subdev format struct 818 * 819 * get video format for pad. 820 */ 821 static int 822 tvp7002_get_pad_format(struct v4l2_subdev *sd, 823 struct v4l2_subdev_state *sd_state, 824 struct v4l2_subdev_format *fmt) 825 { 826 struct tvp7002 *tvp7002 = to_tvp7002(sd); 827 828 fmt->format.code = MEDIA_BUS_FMT_YUYV10_1X20; 829 fmt->format.width = tvp7002->current_timings->timings.bt.width; 830 fmt->format.height = tvp7002->current_timings->timings.bt.height; 831 fmt->format.field = tvp7002->current_timings->scanmode; 832 fmt->format.colorspace = tvp7002->current_timings->color_space; 833 834 return 0; 835 } 836 837 /* 838 * tvp7002_set_pad_format() - set video format on pad 839 * @sd: pointer to standard V4L2 sub-device structure 840 * @sd_state: V4L2 subdev state 841 * @fmt: pointer to subdev format struct 842 * 843 * set video format for pad. 844 */ 845 static int 846 tvp7002_set_pad_format(struct v4l2_subdev *sd, 847 struct v4l2_subdev_state *sd_state, 848 struct v4l2_subdev_format *fmt) 849 { 850 return tvp7002_get_pad_format(sd, sd_state, fmt); 851 } 852 853 /* V4L2 core operation handlers */ 854 static const struct v4l2_subdev_core_ops tvp7002_core_ops = { 855 .log_status = tvp7002_log_status, 856 #ifdef CONFIG_VIDEO_ADV_DEBUG 857 .g_register = tvp7002_g_register, 858 .s_register = tvp7002_s_register, 859 #endif 860 }; 861 862 /* Specific video subsystem operation handlers */ 863 static const struct v4l2_subdev_video_ops tvp7002_video_ops = { 864 .g_dv_timings = tvp7002_g_dv_timings, 865 .s_dv_timings = tvp7002_s_dv_timings, 866 .query_dv_timings = tvp7002_query_dv_timings, 867 .s_stream = tvp7002_s_stream, 868 }; 869 870 /* media pad related operation handlers */ 871 static const struct v4l2_subdev_pad_ops tvp7002_pad_ops = { 872 .enum_mbus_code = tvp7002_enum_mbus_code, 873 .get_fmt = tvp7002_get_pad_format, 874 .set_fmt = tvp7002_set_pad_format, 875 .enum_dv_timings = tvp7002_enum_dv_timings, 876 }; 877 878 /* V4L2 top level operation handlers */ 879 static const struct v4l2_subdev_ops tvp7002_ops = { 880 .core = &tvp7002_core_ops, 881 .video = &tvp7002_video_ops, 882 .pad = &tvp7002_pad_ops, 883 }; 884 885 static struct tvp7002_config * 886 tvp7002_get_pdata(struct i2c_client *client) 887 { 888 struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 }; 889 struct tvp7002_config *pdata = NULL; 890 struct device_node *endpoint; 891 unsigned int flags; 892 893 if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node) 894 return client->dev.platform_data; 895 896 endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL); 897 if (!endpoint) 898 return NULL; 899 900 if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg)) 901 goto done; 902 903 pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); 904 if (!pdata) 905 goto done; 906 907 flags = bus_cfg.bus.parallel.flags; 908 909 if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) 910 pdata->hs_polarity = 1; 911 912 if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) 913 pdata->vs_polarity = 1; 914 915 if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING) 916 pdata->clk_polarity = 1; 917 918 if (flags & V4L2_MBUS_FIELD_EVEN_HIGH) 919 pdata->fid_polarity = 1; 920 921 if (flags & V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH) 922 pdata->sog_polarity = 1; 923 924 done: 925 of_node_put(endpoint); 926 return pdata; 927 } 928 929 /* 930 * tvp7002_probe - Probe a TVP7002 device 931 * @c: ptr to i2c_client struct 932 * @id: ptr to i2c_device_id struct 933 * 934 * Initialize the TVP7002 device 935 * Returns zero when successful, -EINVAL if register read fails or 936 * -EIO if i2c access is not available. 937 */ 938 static int tvp7002_probe(struct i2c_client *c) 939 { 940 struct tvp7002_config *pdata = tvp7002_get_pdata(c); 941 struct v4l2_subdev *sd; 942 struct tvp7002 *device; 943 struct v4l2_dv_timings timings; 944 int polarity_a; 945 int polarity_b; 946 u8 revision; 947 int error; 948 949 if (pdata == NULL) { 950 dev_err(&c->dev, "No platform data\n"); 951 return -EINVAL; 952 } 953 954 /* Check if the adapter supports the needed features */ 955 if (!i2c_check_functionality(c->adapter, 956 I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) 957 return -EIO; 958 959 device = devm_kzalloc(&c->dev, sizeof(struct tvp7002), GFP_KERNEL); 960 961 if (!device) 962 return -ENOMEM; 963 964 sd = &device->sd; 965 device->pdata = pdata; 966 device->current_timings = tvp7002_timings; 967 968 /* Tell v4l2 the device is ready */ 969 v4l2_i2c_subdev_init(sd, c, &tvp7002_ops); 970 v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n", 971 c->addr, c->adapter->name); 972 973 error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision); 974 if (error < 0) 975 return error; 976 977 /* Get revision number */ 978 v4l2_info(sd, "Rev. %02x detected.\n", revision); 979 if (revision != 0x02) 980 v4l2_info(sd, "Unknown revision detected.\n"); 981 982 /* Initializes TVP7002 to its default values */ 983 error = tvp7002_write_inittab(sd, tvp7002_init_default); 984 985 if (error < 0) 986 return error; 987 988 /* Set polarity information after registers have been set */ 989 polarity_a = 0x20 | device->pdata->hs_polarity << 5 990 | device->pdata->vs_polarity << 2; 991 error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity_a); 992 if (error < 0) 993 return error; 994 995 polarity_b = 0x01 | device->pdata->fid_polarity << 2 996 | device->pdata->sog_polarity << 1 997 | device->pdata->clk_polarity; 998 error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity_b); 999 if (error < 0) 1000 return error; 1001 1002 /* Set registers according to default video mode */ 1003 timings = device->current_timings->timings; 1004 error = tvp7002_s_dv_timings(sd, &timings); 1005 1006 #if defined(CONFIG_MEDIA_CONTROLLER) 1007 device->pad.flags = MEDIA_PAD_FL_SOURCE; 1008 device->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; 1009 device->sd.entity.function = MEDIA_ENT_F_ATV_DECODER; 1010 1011 error = media_entity_pads_init(&device->sd.entity, 1, &device->pad); 1012 if (error < 0) 1013 return error; 1014 #endif 1015 1016 v4l2_ctrl_handler_init(&device->hdl, 1); 1017 v4l2_ctrl_new_std(&device->hdl, &tvp7002_ctrl_ops, 1018 V4L2_CID_GAIN, 0, 255, 1, 0); 1019 sd->ctrl_handler = &device->hdl; 1020 if (device->hdl.error) { 1021 error = device->hdl.error; 1022 goto error; 1023 } 1024 v4l2_ctrl_handler_setup(&device->hdl); 1025 1026 error = v4l2_async_register_subdev(&device->sd); 1027 if (error) 1028 goto error; 1029 1030 return 0; 1031 1032 error: 1033 v4l2_ctrl_handler_free(&device->hdl); 1034 #if defined(CONFIG_MEDIA_CONTROLLER) 1035 media_entity_cleanup(&device->sd.entity); 1036 #endif 1037 return error; 1038 } 1039 1040 /* 1041 * tvp7002_remove - Remove TVP7002 device support 1042 * @c: ptr to i2c_client struct 1043 * 1044 * Reset the TVP7002 device 1045 * Returns zero. 1046 */ 1047 static void tvp7002_remove(struct i2c_client *c) 1048 { 1049 struct v4l2_subdev *sd = i2c_get_clientdata(c); 1050 struct tvp7002 *device = to_tvp7002(sd); 1051 1052 v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter" 1053 "on address 0x%x\n", c->addr); 1054 v4l2_async_unregister_subdev(&device->sd); 1055 #if defined(CONFIG_MEDIA_CONTROLLER) 1056 media_entity_cleanup(&device->sd.entity); 1057 #endif 1058 v4l2_ctrl_handler_free(&device->hdl); 1059 } 1060 1061 /* I2C Device ID table */ 1062 static const struct i2c_device_id tvp7002_id[] = { 1063 { "tvp7002", 0 }, 1064 { } 1065 }; 1066 MODULE_DEVICE_TABLE(i2c, tvp7002_id); 1067 1068 #if IS_ENABLED(CONFIG_OF) 1069 static const struct of_device_id tvp7002_of_match[] = { 1070 { .compatible = "ti,tvp7002", }, 1071 { /* sentinel */ }, 1072 }; 1073 MODULE_DEVICE_TABLE(of, tvp7002_of_match); 1074 #endif 1075 1076 /* I2C driver data */ 1077 static struct i2c_driver tvp7002_driver = { 1078 .driver = { 1079 .of_match_table = of_match_ptr(tvp7002_of_match), 1080 .name = TVP7002_MODULE_NAME, 1081 }, 1082 .probe = tvp7002_probe, 1083 .remove = tvp7002_remove, 1084 .id_table = tvp7002_id, 1085 }; 1086 1087 module_i2c_driver(tvp7002_driver); 1088