1 /* Texas Instruments Triple 8-/10-BIT 165-/110-MSPS Video and Graphics
2 * Digitizer with Horizontal PLL registers
3 *
4 * Copyright (C) 2009 Texas Instruments Inc
5 * Author: Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>
6 *
7 * This code is partially based upon the TVP5150 driver
8 * written by Mauro Carvalho Chehab (mchehab@infradead.org),
9 * the TVP514x driver written by Vaibhav Hiremath <hvaibhav@ti.com>
10 * and the TVP7002 driver in the TI LSP 2.10.00.14. Revisions by
11 * Muralidharan Karicheri and Snehaprabha Narnakaje (TI).
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 */
27 #include <linux/delay.h>
28 #include <linux/i2c.h>
29 #include <linux/slab.h>
30 #include <linux/videodev2.h>
31 #include <linux/module.h>
32 #include <linux/of.h>
33 #include <linux/of_graph.h>
34 #include <linux/v4l2-dv-timings.h>
35 #include <media/i2c/tvp7002.h>
36 #include <media/v4l2-async.h>
37 #include <media/v4l2-device.h>
38 #include <media/v4l2-common.h>
39 #include <media/v4l2-ctrls.h>
40 #include <media/v4l2-of.h>
41
42 #include "tvp7002_reg.h"
43
44 MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver");
45 MODULE_AUTHOR("Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>");
46 MODULE_LICENSE("GPL");
47
48 /* I2C retry attempts */
49 #define I2C_RETRY_COUNT (5)
50
51 /* End of registers */
52 #define TVP7002_EOR 0x5c
53
54 /* Read write definition for registers */
55 #define TVP7002_READ 0
56 #define TVP7002_WRITE 1
57 #define TVP7002_RESERVED 2
58
59 /* Interlaced vs progressive mask and shift */
60 #define TVP7002_IP_SHIFT 5
61 #define TVP7002_INPR_MASK (0x01 << TVP7002_IP_SHIFT)
62
63 /* Shift for CPL and LPF registers */
64 #define TVP7002_CL_SHIFT 8
65 #define TVP7002_CL_MASK 0x0f
66
67 /* Debug functions */
68 static bool debug;
69 module_param(debug, bool, 0644);
70 MODULE_PARM_DESC(debug, "Debug level (0-2)");
71
72 /* Structure for register values */
73 struct i2c_reg_value {
74 u8 reg;
75 u8 value;
76 u8 type;
77 };
78
79 /*
80 * Register default values (according to tvp7002 datasheet)
81 * In the case of read-only registers, the value (0xff) is
82 * never written. R/W functionality is controlled by the
83 * writable bit in the register struct definition.
84 */
85 static const struct i2c_reg_value tvp7002_init_default[] = {
86 { TVP7002_CHIP_REV, 0xff, TVP7002_READ },
87 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
88 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE },
89 { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
90 { TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE },
91 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
92 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
93 { TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE },
94 { TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE },
95 { TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE },
96 { TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE },
97 { TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
98 { TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
99 { TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
100 { TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE },
101 { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE },
102 { TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE },
103 { TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE },
104 { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE },
105 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
106 { TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ },
107 { TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE },
108 { TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE },
109 { TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE },
110 { TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE },
111 { TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE },
112 { TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE },
113 { TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE },
114 { TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE },
115 { TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE },
116 { TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE },
117 { TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE },
118 { TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE },
119 { TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE },
120 { TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE },
121 { TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
122 { TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
123 { TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
124 { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE },
125 { TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ },
126 { TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE },
127 { 0x29, 0x08, TVP7002_RESERVED },
128 { TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE },
129 /* PWR_CTL is controlled only by the probe and reset functions */
130 { TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED },
131 { TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE },
132 { TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE },
133 { TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE },
134 { TVP7002_RGB_COARSE_CLAMP_CTL, 0x8c, TVP7002_WRITE },
135 { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE },
136 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
137 { 0x32, 0x18, TVP7002_RESERVED },
138 { 0x33, 0x60, TVP7002_RESERVED },
139 { TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED },
140 { TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE },
141 { TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE },
142 { TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ },
143 { TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ },
144 { TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ },
145 { TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ },
146 { TVP7002_HSYNC_W, 0xff, TVP7002_READ },
147 { TVP7002_VSYNC_W, 0xff, TVP7002_READ },
148 { TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE },
149 { 0x3e, 0x60, TVP7002_RESERVED },
150 { TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE },
151 { TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE },
152 { TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
153 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE },
154 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
155 { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
156 { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
157 { TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE },
158 { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
159 { TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
160 { TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
161 { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE },
162 { TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE },
163 { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE },
164 { TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE },
165 { TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE },
166 { TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE },
167 { TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE },
168 { TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE },
169 { TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE },
170 { TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE },
171 { TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE },
172 { TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE },
173 { TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE },
174 { TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE },
175 { TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE },
176 { TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE },
177 { TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE },
178 { TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE },
179 /* This signals end of register values */
180 { TVP7002_EOR, 0xff, TVP7002_RESERVED }
181 };
182
183 /* Register parameters for 480P */
184 static const struct i2c_reg_value tvp7002_parms_480P[] = {
185 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE },
186 { TVP7002_HPLL_FDBK_DIV_LSBS, 0xa0, TVP7002_WRITE },
187 { TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE },
188 { TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE },
189 { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
190 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE },
191 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
192 { TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE },
193 { TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE },
194 { TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE },
195 { TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE },
196 { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
197 { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
198 { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
199 { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
200 { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
201 { TVP7002_EOR, 0xff, TVP7002_RESERVED }
202 };
203
204 /* Register parameters for 576P */
205 static const struct i2c_reg_value tvp7002_parms_576P[] = {
206 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE },
207 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
208 { TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE },
209 { TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE },
210 { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
211 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE },
212 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
213 { TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
214 { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
215 { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
216 { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
217 { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
218 { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
219 { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
220 { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
221 { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
222 { TVP7002_EOR, 0xff, TVP7002_RESERVED }
223 };
224
225 /* Register parameters for 1080I60 */
226 static const struct i2c_reg_value tvp7002_parms_1080I60[] = {
227 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
228 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
229 { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
230 { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
231 { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
232 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
233 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
234 { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
235 { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
236 { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
237 { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
238 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
239 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
240 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
241 { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
242 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
243 { TVP7002_EOR, 0xff, TVP7002_RESERVED }
244 };
245
246 /* Register parameters for 1080P60 */
247 static const struct i2c_reg_value tvp7002_parms_1080P60[] = {
248 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
249 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
250 { TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE },
251 { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
252 { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
253 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
254 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
255 { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
256 { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
257 { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
258 { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
259 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
260 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
261 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
262 { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
263 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
264 { TVP7002_EOR, 0xff, TVP7002_RESERVED }
265 };
266
267 /* Register parameters for 1080I50 */
268 static const struct i2c_reg_value tvp7002_parms_1080I50[] = {
269 { TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE },
270 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
271 { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
272 { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
273 { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
274 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
275 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
276 { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
277 { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
278 { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
279 { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
280 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
281 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
282 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
283 { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
284 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
285 { TVP7002_EOR, 0xff, TVP7002_RESERVED }
286 };
287
288 /* Register parameters for 720P60 */
289 static const struct i2c_reg_value tvp7002_parms_720P60[] = {
290 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
291 { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE },
292 { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
293 { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
294 { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
295 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
296 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE },
297 { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
298 { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
299 { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
300 { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
301 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
302 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
303 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
304 { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE },
305 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
306 { TVP7002_EOR, 0xff, TVP7002_RESERVED }
307 };
308
309 /* Register parameters for 720P50 */
310 static const struct i2c_reg_value tvp7002_parms_720P50[] = {
311 { TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE },
312 { TVP7002_HPLL_FDBK_DIV_LSBS, 0xc0, TVP7002_WRITE },
313 { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
314 { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
315 { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
316 { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
317 { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE },
318 { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
319 { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
320 { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
321 { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
322 { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
323 { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
324 { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
325 { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
326 { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
327 { TVP7002_EOR, 0xff, TVP7002_RESERVED }
328 };
329
330 /* Timings definition for handling device operation */
331 struct tvp7002_timings_definition {
332 struct v4l2_dv_timings timings;
333 const struct i2c_reg_value *p_settings;
334 enum v4l2_colorspace color_space;
335 enum v4l2_field scanmode;
336 u16 progressive;
337 u16 lines_per_frame;
338 u16 cpl_min;
339 u16 cpl_max;
340 };
341
342 /* Struct list for digital video timings */
343 static const struct tvp7002_timings_definition tvp7002_timings[] = {
344 {
345 V4L2_DV_BT_CEA_1280X720P60,
346 tvp7002_parms_720P60,
347 V4L2_COLORSPACE_REC709,
348 V4L2_FIELD_NONE,
349 1,
350 0x2EE,
351 135,
352 153
353 },
354 {
355 V4L2_DV_BT_CEA_1920X1080I60,
356 tvp7002_parms_1080I60,
357 V4L2_COLORSPACE_REC709,
358 V4L2_FIELD_INTERLACED,
359 0,
360 0x465,
361 181,
362 205
363 },
364 {
365 V4L2_DV_BT_CEA_1920X1080I50,
366 tvp7002_parms_1080I50,
367 V4L2_COLORSPACE_REC709,
368 V4L2_FIELD_INTERLACED,
369 0,
370 0x465,
371 217,
372 245
373 },
374 {
375 V4L2_DV_BT_CEA_1280X720P50,
376 tvp7002_parms_720P50,
377 V4L2_COLORSPACE_REC709,
378 V4L2_FIELD_NONE,
379 1,
380 0x2EE,
381 163,
382 183
383 },
384 {
385 V4L2_DV_BT_CEA_1920X1080P60,
386 tvp7002_parms_1080P60,
387 V4L2_COLORSPACE_REC709,
388 V4L2_FIELD_NONE,
389 1,
390 0x465,
391 90,
392 102
393 },
394 {
395 V4L2_DV_BT_CEA_720X480P59_94,
396 tvp7002_parms_480P,
397 V4L2_COLORSPACE_SMPTE170M,
398 V4L2_FIELD_NONE,
399 1,
400 0x20D,
401 0xffff,
402 0xffff
403 },
404 {
405 V4L2_DV_BT_CEA_720X576P50,
406 tvp7002_parms_576P,
407 V4L2_COLORSPACE_SMPTE170M,
408 V4L2_FIELD_NONE,
409 1,
410 0x271,
411 0xffff,
412 0xffff
413 }
414 };
415
416 #define NUM_TIMINGS ARRAY_SIZE(tvp7002_timings)
417
418 /* Device definition */
419 struct tvp7002 {
420 struct v4l2_subdev sd;
421 struct v4l2_ctrl_handler hdl;
422 const struct tvp7002_config *pdata;
423
424 int ver;
425 int streaming;
426
427 const struct tvp7002_timings_definition *current_timings;
428 struct media_pad pad;
429 };
430
431 /*
432 * to_tvp7002 - Obtain device handler TVP7002
433 * @sd: ptr to v4l2_subdev struct
434 *
435 * Returns device handler tvp7002.
436 */
to_tvp7002(struct v4l2_subdev * sd)437 static inline struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd)
438 {
439 return container_of(sd, struct tvp7002, sd);
440 }
441
to_sd(struct v4l2_ctrl * ctrl)442 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
443 {
444 return &container_of(ctrl->handler, struct tvp7002, hdl)->sd;
445 }
446
447 /*
448 * tvp7002_read - Read a value from a register in an TVP7002
449 * @sd: ptr to v4l2_subdev struct
450 * @addr: TVP7002 register address
451 * @dst: pointer to 8-bit destination
452 *
453 * Returns value read if successful, or non-zero (-1) otherwise.
454 */
tvp7002_read(struct v4l2_subdev * sd,u8 addr,u8 * dst)455 static int tvp7002_read(struct v4l2_subdev *sd, u8 addr, u8 *dst)
456 {
457 struct i2c_client *c = v4l2_get_subdevdata(sd);
458 int retry;
459 int error;
460
461 for (retry = 0; retry < I2C_RETRY_COUNT; retry++) {
462 error = i2c_smbus_read_byte_data(c, addr);
463
464 if (error >= 0) {
465 *dst = (u8)error;
466 return 0;
467 }
468
469 msleep_interruptible(10);
470 }
471 v4l2_err(sd, "TVP7002 read error %d\n", error);
472 return error;
473 }
474
475 /*
476 * tvp7002_read_err() - Read a register value with error code
477 * @sd: pointer to standard V4L2 sub-device structure
478 * @reg: destination register
479 * @val: value to be read
480 * @err: pointer to error value
481 *
482 * Read a value in a register and save error value in pointer.
483 * Also update the register table if successful
484 */
tvp7002_read_err(struct v4l2_subdev * sd,u8 reg,u8 * dst,int * err)485 static inline void tvp7002_read_err(struct v4l2_subdev *sd, u8 reg,
486 u8 *dst, int *err)
487 {
488 if (!*err)
489 *err = tvp7002_read(sd, reg, dst);
490 }
491
492 /*
493 * tvp7002_write() - Write a value to a register in TVP7002
494 * @sd: ptr to v4l2_subdev struct
495 * @addr: TVP7002 register address
496 * @value: value to be written to the register
497 *
498 * Write a value to a register in an TVP7002 decoder device.
499 * Returns zero if successful, or non-zero otherwise.
500 */
tvp7002_write(struct v4l2_subdev * sd,u8 addr,u8 value)501 static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value)
502 {
503 struct i2c_client *c;
504 int retry;
505 int error;
506
507 c = v4l2_get_subdevdata(sd);
508
509 for (retry = 0; retry < I2C_RETRY_COUNT; retry++) {
510 error = i2c_smbus_write_byte_data(c, addr, value);
511
512 if (error >= 0)
513 return 0;
514
515 v4l2_warn(sd, "Write: retry ... %d\n", retry);
516 msleep_interruptible(10);
517 }
518 v4l2_err(sd, "TVP7002 write error %d\n", error);
519 return error;
520 }
521
522 /*
523 * tvp7002_write_err() - Write a register value with error code
524 * @sd: pointer to standard V4L2 sub-device structure
525 * @reg: destination register
526 * @val: value to be written
527 * @err: pointer to error value
528 *
529 * Write a value in a register and save error value in pointer.
530 * Also update the register table if successful
531 */
tvp7002_write_err(struct v4l2_subdev * sd,u8 reg,u8 val,int * err)532 static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg,
533 u8 val, int *err)
534 {
535 if (!*err)
536 *err = tvp7002_write(sd, reg, val);
537 }
538
539 /*
540 * tvp7002_write_inittab() - Write initialization values
541 * @sd: ptr to v4l2_subdev struct
542 * @regs: ptr to i2c_reg_value struct
543 *
544 * Write initialization values.
545 * Returns zero or -EINVAL if read operation fails.
546 */
tvp7002_write_inittab(struct v4l2_subdev * sd,const struct i2c_reg_value * regs)547 static int tvp7002_write_inittab(struct v4l2_subdev *sd,
548 const struct i2c_reg_value *regs)
549 {
550 int error = 0;
551
552 /* Initialize the first (defined) registers */
553 while (TVP7002_EOR != regs->reg) {
554 if (TVP7002_WRITE == regs->type)
555 tvp7002_write_err(sd, regs->reg, regs->value, &error);
556 regs++;
557 }
558
559 return error;
560 }
561
tvp7002_s_dv_timings(struct v4l2_subdev * sd,struct v4l2_dv_timings * dv_timings)562 static int tvp7002_s_dv_timings(struct v4l2_subdev *sd,
563 struct v4l2_dv_timings *dv_timings)
564 {
565 struct tvp7002 *device = to_tvp7002(sd);
566 const struct v4l2_bt_timings *bt = &dv_timings->bt;
567 int i;
568
569 if (dv_timings->type != V4L2_DV_BT_656_1120)
570 return -EINVAL;
571 for (i = 0; i < NUM_TIMINGS; i++) {
572 const struct v4l2_bt_timings *t = &tvp7002_timings[i].timings.bt;
573
574 if (!memcmp(bt, t, &bt->standards - &bt->width)) {
575 device->current_timings = &tvp7002_timings[i];
576 return tvp7002_write_inittab(sd, tvp7002_timings[i].p_settings);
577 }
578 }
579 return -EINVAL;
580 }
581
tvp7002_g_dv_timings(struct v4l2_subdev * sd,struct v4l2_dv_timings * dv_timings)582 static int tvp7002_g_dv_timings(struct v4l2_subdev *sd,
583 struct v4l2_dv_timings *dv_timings)
584 {
585 struct tvp7002 *device = to_tvp7002(sd);
586
587 *dv_timings = device->current_timings->timings;
588 return 0;
589 }
590
591 /*
592 * tvp7002_s_ctrl() - Set a control
593 * @ctrl: ptr to v4l2_ctrl struct
594 *
595 * Set a control in TVP7002 decoder device.
596 * Returns zero when successful or -EINVAL if register access fails.
597 */
tvp7002_s_ctrl(struct v4l2_ctrl * ctrl)598 static int tvp7002_s_ctrl(struct v4l2_ctrl *ctrl)
599 {
600 struct v4l2_subdev *sd = to_sd(ctrl);
601 int error = 0;
602
603 switch (ctrl->id) {
604 case V4L2_CID_GAIN:
605 tvp7002_write_err(sd, TVP7002_R_FINE_GAIN, ctrl->val, &error);
606 tvp7002_write_err(sd, TVP7002_G_FINE_GAIN, ctrl->val, &error);
607 tvp7002_write_err(sd, TVP7002_B_FINE_GAIN, ctrl->val, &error);
608 return error;
609 }
610 return -EINVAL;
611 }
612
613 /*
614 * tvp7002_query_dv() - query DV timings
615 * @sd: pointer to standard V4L2 sub-device structure
616 * @index: index into the tvp7002_timings array
617 *
618 * Returns the current DV timings detected by TVP7002. If no active input is
619 * detected, returns -EINVAL
620 */
tvp7002_query_dv(struct v4l2_subdev * sd,int * index)621 static int tvp7002_query_dv(struct v4l2_subdev *sd, int *index)
622 {
623 const struct tvp7002_timings_definition *timings = tvp7002_timings;
624 u8 progressive;
625 u32 lpfr;
626 u32 cpln;
627 int error = 0;
628 u8 lpf_lsb;
629 u8 lpf_msb;
630 u8 cpl_lsb;
631 u8 cpl_msb;
632
633 /* Return invalid index if no active input is detected */
634 *index = NUM_TIMINGS;
635
636 /* Read standards from device registers */
637 tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error);
638 tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb, &error);
639
640 if (error < 0)
641 return error;
642
643 tvp7002_read_err(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb, &error);
644 tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error);
645
646 if (error < 0)
647 return error;
648
649 /* Get lines per frame, clocks per line and interlaced/progresive */
650 lpfr = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) << TVP7002_CL_SHIFT);
651 cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT);
652 progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT;
653
654 /* Do checking of video modes */
655 for (*index = 0; *index < NUM_TIMINGS; (*index)++, timings++)
656 if (lpfr == timings->lines_per_frame &&
657 progressive == timings->progressive) {
658 if (timings->cpl_min == 0xffff)
659 break;
660 if (cpln >= timings->cpl_min && cpln <= timings->cpl_max)
661 break;
662 }
663
664 if (*index == NUM_TIMINGS) {
665 v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n",
666 lpfr, cpln);
667 return -ENOLINK;
668 }
669
670 /* Update lines per frame and clocks per line info */
671 v4l2_dbg(1, debug, sd, "detected timings: %d\n", *index);
672 return 0;
673 }
674
tvp7002_query_dv_timings(struct v4l2_subdev * sd,struct v4l2_dv_timings * timings)675 static int tvp7002_query_dv_timings(struct v4l2_subdev *sd,
676 struct v4l2_dv_timings *timings)
677 {
678 int index;
679 int err = tvp7002_query_dv(sd, &index);
680
681 if (err)
682 return err;
683 *timings = tvp7002_timings[index].timings;
684 return 0;
685 }
686
687 #ifdef CONFIG_VIDEO_ADV_DEBUG
688 /*
689 * tvp7002_g_register() - Get the value of a register
690 * @sd: ptr to v4l2_subdev struct
691 * @reg: ptr to v4l2_dbg_register struct
692 *
693 * Get the value of a TVP7002 decoder device register.
694 * Returns zero when successful, -EINVAL if register read fails or
695 * access to I2C client fails.
696 */
tvp7002_g_register(struct v4l2_subdev * sd,struct v4l2_dbg_register * reg)697 static int tvp7002_g_register(struct v4l2_subdev *sd,
698 struct v4l2_dbg_register *reg)
699 {
700 u8 val;
701 int ret;
702
703 ret = tvp7002_read(sd, reg->reg & 0xff, &val);
704 reg->val = val;
705 reg->size = 1;
706 return ret;
707 }
708
709 /*
710 * tvp7002_s_register() - set a control
711 * @sd: ptr to v4l2_subdev struct
712 * @reg: ptr to v4l2_dbg_register struct
713 *
714 * Get the value of a TVP7002 decoder device register.
715 * Returns zero when successful, -EINVAL if register read fails.
716 */
tvp7002_s_register(struct v4l2_subdev * sd,const struct v4l2_dbg_register * reg)717 static int tvp7002_s_register(struct v4l2_subdev *sd,
718 const struct v4l2_dbg_register *reg)
719 {
720 return tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff);
721 }
722 #endif
723
724 /*
725 * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream
726 * @sd: pointer to standard V4L2 sub-device structure
727 * @enable: streaming enable or disable
728 *
729 * Sets streaming to enable or disable, if possible.
730 */
tvp7002_s_stream(struct v4l2_subdev * sd,int enable)731 static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable)
732 {
733 struct tvp7002 *device = to_tvp7002(sd);
734 int error;
735
736 if (device->streaming == enable)
737 return 0;
738
739 /* low impedance: on, high impedance: off */
740 error = tvp7002_write(sd, TVP7002_MISC_CTL_2, enable ? 0x00 : 0x03);
741 if (error) {
742 v4l2_dbg(1, debug, sd, "Fail to set streaming\n");
743 return error;
744 }
745
746 device->streaming = enable;
747 return 0;
748 }
749
750 /*
751 * tvp7002_log_status() - Print information about register settings
752 * @sd: ptr to v4l2_subdev struct
753 *
754 * Log register values of a TVP7002 decoder device.
755 * Returns zero or -EINVAL if read operation fails.
756 */
tvp7002_log_status(struct v4l2_subdev * sd)757 static int tvp7002_log_status(struct v4l2_subdev *sd)
758 {
759 struct tvp7002 *device = to_tvp7002(sd);
760 const struct v4l2_bt_timings *bt;
761 int detected;
762
763 /* Find my current timings */
764 tvp7002_query_dv(sd, &detected);
765
766 bt = &device->current_timings->timings.bt;
767 v4l2_info(sd, "Selected DV Timings: %ux%u\n", bt->width, bt->height);
768 if (detected == NUM_TIMINGS) {
769 v4l2_info(sd, "Detected DV Timings: None\n");
770 } else {
771 bt = &tvp7002_timings[detected].timings.bt;
772 v4l2_info(sd, "Detected DV Timings: %ux%u\n",
773 bt->width, bt->height);
774 }
775 v4l2_info(sd, "Streaming enabled: %s\n",
776 device->streaming ? "yes" : "no");
777
778 /* Print the current value of the gain control */
779 v4l2_ctrl_handler_log_status(&device->hdl, sd->name);
780
781 return 0;
782 }
783
tvp7002_enum_dv_timings(struct v4l2_subdev * sd,struct v4l2_enum_dv_timings * timings)784 static int tvp7002_enum_dv_timings(struct v4l2_subdev *sd,
785 struct v4l2_enum_dv_timings *timings)
786 {
787 if (timings->pad != 0)
788 return -EINVAL;
789
790 /* Check requested format index is within range */
791 if (timings->index >= NUM_TIMINGS)
792 return -EINVAL;
793
794 timings->timings = tvp7002_timings[timings->index].timings;
795 return 0;
796 }
797
798 static const struct v4l2_ctrl_ops tvp7002_ctrl_ops = {
799 .s_ctrl = tvp7002_s_ctrl,
800 };
801
802 /*
803 * tvp7002_enum_mbus_code() - Enum supported digital video format on pad
804 * @sd: pointer to standard V4L2 sub-device structure
805 * @cfg: pad configuration
806 * @code: pointer to subdev enum mbus code struct
807 *
808 * Enumerate supported digital video formats for pad.
809 */
810 static int
tvp7002_enum_mbus_code(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_mbus_code_enum * code)811 tvp7002_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
812 struct v4l2_subdev_mbus_code_enum *code)
813 {
814 /* Check requested format index is within range */
815 if (code->index != 0)
816 return -EINVAL;
817
818 code->code = MEDIA_BUS_FMT_YUYV10_1X20;
819
820 return 0;
821 }
822
823 /*
824 * tvp7002_get_pad_format() - get video format on pad
825 * @sd: pointer to standard V4L2 sub-device structure
826 * @cfg: pad configuration
827 * @fmt: pointer to subdev format struct
828 *
829 * get video format for pad.
830 */
831 static int
tvp7002_get_pad_format(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_format * fmt)832 tvp7002_get_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
833 struct v4l2_subdev_format *fmt)
834 {
835 struct tvp7002 *tvp7002 = to_tvp7002(sd);
836
837 fmt->format.code = MEDIA_BUS_FMT_YUYV10_1X20;
838 fmt->format.width = tvp7002->current_timings->timings.bt.width;
839 fmt->format.height = tvp7002->current_timings->timings.bt.height;
840 fmt->format.field = tvp7002->current_timings->scanmode;
841 fmt->format.colorspace = tvp7002->current_timings->color_space;
842
843 return 0;
844 }
845
846 /*
847 * tvp7002_set_pad_format() - set video format on pad
848 * @sd: pointer to standard V4L2 sub-device structure
849 * @cfg: pad configuration
850 * @fmt: pointer to subdev format struct
851 *
852 * set video format for pad.
853 */
854 static int
tvp7002_set_pad_format(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_format * fmt)855 tvp7002_set_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
856 struct v4l2_subdev_format *fmt)
857 {
858 return tvp7002_get_pad_format(sd, cfg, fmt);
859 }
860
861 /* V4L2 core operation handlers */
862 static const struct v4l2_subdev_core_ops tvp7002_core_ops = {
863 .log_status = tvp7002_log_status,
864 #ifdef CONFIG_VIDEO_ADV_DEBUG
865 .g_register = tvp7002_g_register,
866 .s_register = tvp7002_s_register,
867 #endif
868 };
869
870 /* Specific video subsystem operation handlers */
871 static const struct v4l2_subdev_video_ops tvp7002_video_ops = {
872 .g_dv_timings = tvp7002_g_dv_timings,
873 .s_dv_timings = tvp7002_s_dv_timings,
874 .query_dv_timings = tvp7002_query_dv_timings,
875 .s_stream = tvp7002_s_stream,
876 };
877
878 /* media pad related operation handlers */
879 static const struct v4l2_subdev_pad_ops tvp7002_pad_ops = {
880 .enum_mbus_code = tvp7002_enum_mbus_code,
881 .get_fmt = tvp7002_get_pad_format,
882 .set_fmt = tvp7002_set_pad_format,
883 .enum_dv_timings = tvp7002_enum_dv_timings,
884 };
885
886 /* V4L2 top level operation handlers */
887 static const struct v4l2_subdev_ops tvp7002_ops = {
888 .core = &tvp7002_core_ops,
889 .video = &tvp7002_video_ops,
890 .pad = &tvp7002_pad_ops,
891 };
892
893 static struct tvp7002_config *
tvp7002_get_pdata(struct i2c_client * client)894 tvp7002_get_pdata(struct i2c_client *client)
895 {
896 struct v4l2_of_endpoint bus_cfg;
897 struct tvp7002_config *pdata = NULL;
898 struct device_node *endpoint;
899 unsigned int flags;
900
901 if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
902 return client->dev.platform_data;
903
904 endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL);
905 if (!endpoint)
906 return NULL;
907
908 if (v4l2_of_parse_endpoint(endpoint, &bus_cfg))
909 goto done;
910
911 pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
912 if (!pdata)
913 goto done;
914
915 flags = bus_cfg.bus.parallel.flags;
916
917 if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
918 pdata->hs_polarity = 1;
919
920 if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
921 pdata->vs_polarity = 1;
922
923 if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
924 pdata->clk_polarity = 1;
925
926 if (flags & V4L2_MBUS_FIELD_EVEN_HIGH)
927 pdata->fid_polarity = 1;
928
929 if (flags & V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH)
930 pdata->sog_polarity = 1;
931
932 done:
933 of_node_put(endpoint);
934 return pdata;
935 }
936
937 /*
938 * tvp7002_probe - Probe a TVP7002 device
939 * @c: ptr to i2c_client struct
940 * @id: ptr to i2c_device_id struct
941 *
942 * Initialize the TVP7002 device
943 * Returns zero when successful, -EINVAL if register read fails or
944 * -EIO if i2c access is not available.
945 */
tvp7002_probe(struct i2c_client * c,const struct i2c_device_id * id)946 static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id)
947 {
948 struct tvp7002_config *pdata = tvp7002_get_pdata(c);
949 struct v4l2_subdev *sd;
950 struct tvp7002 *device;
951 struct v4l2_dv_timings timings;
952 int polarity_a;
953 int polarity_b;
954 u8 revision;
955 int error;
956
957 if (pdata == NULL) {
958 dev_err(&c->dev, "No platform data\n");
959 return -EINVAL;
960 }
961
962 /* Check if the adapter supports the needed features */
963 if (!i2c_check_functionality(c->adapter,
964 I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
965 return -EIO;
966
967 device = devm_kzalloc(&c->dev, sizeof(struct tvp7002), GFP_KERNEL);
968
969 if (!device)
970 return -ENOMEM;
971
972 sd = &device->sd;
973 device->pdata = pdata;
974 device->current_timings = tvp7002_timings;
975
976 /* Tell v4l2 the device is ready */
977 v4l2_i2c_subdev_init(sd, c, &tvp7002_ops);
978 v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n",
979 c->addr, c->adapter->name);
980
981 error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision);
982 if (error < 0)
983 return error;
984
985 /* Get revision number */
986 v4l2_info(sd, "Rev. %02x detected.\n", revision);
987 if (revision != 0x02)
988 v4l2_info(sd, "Unknown revision detected.\n");
989
990 /* Initializes TVP7002 to its default values */
991 error = tvp7002_write_inittab(sd, tvp7002_init_default);
992
993 if (error < 0)
994 return error;
995
996 /* Set polarity information after registers have been set */
997 polarity_a = 0x20 | device->pdata->hs_polarity << 5
998 | device->pdata->vs_polarity << 2;
999 error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity_a);
1000 if (error < 0)
1001 return error;
1002
1003 polarity_b = 0x01 | device->pdata->fid_polarity << 2
1004 | device->pdata->sog_polarity << 1
1005 | device->pdata->clk_polarity;
1006 error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity_b);
1007 if (error < 0)
1008 return error;
1009
1010 /* Set registers according to default video mode */
1011 timings = device->current_timings->timings;
1012 error = tvp7002_s_dv_timings(sd, &timings);
1013
1014 #if defined(CONFIG_MEDIA_CONTROLLER)
1015 device->pad.flags = MEDIA_PAD_FL_SOURCE;
1016 device->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1017 device->sd.entity.flags |= MEDIA_ENT_F_ATV_DECODER;
1018
1019 error = media_entity_pads_init(&device->sd.entity, 1, &device->pad);
1020 if (error < 0)
1021 return error;
1022 #endif
1023
1024 v4l2_ctrl_handler_init(&device->hdl, 1);
1025 v4l2_ctrl_new_std(&device->hdl, &tvp7002_ctrl_ops,
1026 V4L2_CID_GAIN, 0, 255, 1, 0);
1027 sd->ctrl_handler = &device->hdl;
1028 if (device->hdl.error) {
1029 error = device->hdl.error;
1030 goto error;
1031 }
1032 v4l2_ctrl_handler_setup(&device->hdl);
1033
1034 error = v4l2_async_register_subdev(&device->sd);
1035 if (error)
1036 goto error;
1037
1038 return 0;
1039
1040 error:
1041 v4l2_ctrl_handler_free(&device->hdl);
1042 #if defined(CONFIG_MEDIA_CONTROLLER)
1043 media_entity_cleanup(&device->sd.entity);
1044 #endif
1045 return error;
1046 }
1047
1048 /*
1049 * tvp7002_remove - Remove TVP7002 device support
1050 * @c: ptr to i2c_client struct
1051 *
1052 * Reset the TVP7002 device
1053 * Returns zero.
1054 */
tvp7002_remove(struct i2c_client * c)1055 static int tvp7002_remove(struct i2c_client *c)
1056 {
1057 struct v4l2_subdev *sd = i2c_get_clientdata(c);
1058 struct tvp7002 *device = to_tvp7002(sd);
1059
1060 v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter"
1061 "on address 0x%x\n", c->addr);
1062 v4l2_async_unregister_subdev(&device->sd);
1063 #if defined(CONFIG_MEDIA_CONTROLLER)
1064 media_entity_cleanup(&device->sd.entity);
1065 #endif
1066 v4l2_ctrl_handler_free(&device->hdl);
1067 return 0;
1068 }
1069
1070 /* I2C Device ID table */
1071 static const struct i2c_device_id tvp7002_id[] = {
1072 { "tvp7002", 0 },
1073 { }
1074 };
1075 MODULE_DEVICE_TABLE(i2c, tvp7002_id);
1076
1077 #if IS_ENABLED(CONFIG_OF)
1078 static const struct of_device_id tvp7002_of_match[] = {
1079 { .compatible = "ti,tvp7002", },
1080 { /* sentinel */ },
1081 };
1082 MODULE_DEVICE_TABLE(of, tvp7002_of_match);
1083 #endif
1084
1085 /* I2C driver data */
1086 static struct i2c_driver tvp7002_driver = {
1087 .driver = {
1088 .of_match_table = of_match_ptr(tvp7002_of_match),
1089 .name = TVP7002_MODULE_NAME,
1090 },
1091 .probe = tvp7002_probe,
1092 .remove = tvp7002_remove,
1093 .id_table = tvp7002_id,
1094 };
1095
1096 module_i2c_driver(tvp7002_driver);
1097