2 * Copyright (C) 2012 Texas Instruments
3 * Author: Rob Clark <robdclark@gmail.com>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
20 #include <linux/module.h>
23 #include <drm/drm_crtc_helper.h>
24 #include <drm/drm_encoder_slave.h>
25 #include <drm/drm_edid.h>
26 #include <drm/i2c/tda998x.h>
28 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
31 struct i2c_client *cec;
39 struct tda998x_encoder_params params;
42 #define to_tda998x_priv(x) ((struct tda998x_priv *)to_encoder_slave(x)->slave_priv)
44 /* The TDA9988 series of devices use a paged register scheme.. to simplify
45 * things we encode the page # in upper bits of the register #. To read/
46 * write a given register, we need to make sure CURPAGE register is set
47 * appropriately. Which implies reads/writes are not atomic. Fun!
50 #define REG(page, addr) (((page) << 8) | (addr))
51 #define REG2ADDR(reg) ((reg) & 0xff)
52 #define REG2PAGE(reg) (((reg) >> 8) & 0xff)
54 #define REG_CURPAGE 0xff /* write */
57 /* Page 00h: General Control */
58 #define REG_VERSION_LSB REG(0x00, 0x00) /* read */
59 #define REG_MAIN_CNTRL0 REG(0x00, 0x01) /* read/write */
60 # define MAIN_CNTRL0_SR (1 << 0)
61 # define MAIN_CNTRL0_DECS (1 << 1)
62 # define MAIN_CNTRL0_DEHS (1 << 2)
63 # define MAIN_CNTRL0_CECS (1 << 3)
64 # define MAIN_CNTRL0_CEHS (1 << 4)
65 # define MAIN_CNTRL0_SCALER (1 << 7)
66 #define REG_VERSION_MSB REG(0x00, 0x02) /* read */
67 #define REG_SOFTRESET REG(0x00, 0x0a) /* write */
68 # define SOFTRESET_AUDIO (1 << 0)
69 # define SOFTRESET_I2C_MASTER (1 << 1)
70 #define REG_DDC_DISABLE REG(0x00, 0x0b) /* read/write */
71 #define REG_CCLK_ON REG(0x00, 0x0c) /* read/write */
72 #define REG_I2C_MASTER REG(0x00, 0x0d) /* read/write */
73 # define I2C_MASTER_DIS_MM (1 << 0)
74 # define I2C_MASTER_DIS_FILT (1 << 1)
75 # define I2C_MASTER_APP_STRT_LAT (1 << 2)
76 #define REG_FEAT_POWERDOWN REG(0x00, 0x0e) /* read/write */
77 # define FEAT_POWERDOWN_SPDIF (1 << 3)
78 #define REG_INT_FLAGS_0 REG(0x00, 0x0f) /* read/write */
79 #define REG_INT_FLAGS_1 REG(0x00, 0x10) /* read/write */
80 #define REG_INT_FLAGS_2 REG(0x00, 0x11) /* read/write */
81 # define INT_FLAGS_2_EDID_BLK_RD (1 << 1)
82 #define REG_ENA_ACLK REG(0x00, 0x16) /* read/write */
83 #define REG_ENA_VP_0 REG(0x00, 0x18) /* read/write */
84 #define REG_ENA_VP_1 REG(0x00, 0x19) /* read/write */
85 #define REG_ENA_VP_2 REG(0x00, 0x1a) /* read/write */
86 #define REG_ENA_AP REG(0x00, 0x1e) /* read/write */
87 #define REG_VIP_CNTRL_0 REG(0x00, 0x20) /* write */
88 # define VIP_CNTRL_0_MIRR_A (1 << 7)
89 # define VIP_CNTRL_0_SWAP_A(x) (((x) & 7) << 4)
90 # define VIP_CNTRL_0_MIRR_B (1 << 3)
91 # define VIP_CNTRL_0_SWAP_B(x) (((x) & 7) << 0)
92 #define REG_VIP_CNTRL_1 REG(0x00, 0x21) /* write */
93 # define VIP_CNTRL_1_MIRR_C (1 << 7)
94 # define VIP_CNTRL_1_SWAP_C(x) (((x) & 7) << 4)
95 # define VIP_CNTRL_1_MIRR_D (1 << 3)
96 # define VIP_CNTRL_1_SWAP_D(x) (((x) & 7) << 0)
97 #define REG_VIP_CNTRL_2 REG(0x00, 0x22) /* write */
98 # define VIP_CNTRL_2_MIRR_E (1 << 7)
99 # define VIP_CNTRL_2_SWAP_E(x) (((x) & 7) << 4)
100 # define VIP_CNTRL_2_MIRR_F (1 << 3)
101 # define VIP_CNTRL_2_SWAP_F(x) (((x) & 7) << 0)
102 #define REG_VIP_CNTRL_3 REG(0x00, 0x23) /* write */
103 # define VIP_CNTRL_3_X_TGL (1 << 0)
104 # define VIP_CNTRL_3_H_TGL (1 << 1)
105 # define VIP_CNTRL_3_V_TGL (1 << 2)
106 # define VIP_CNTRL_3_EMB (1 << 3)
107 # define VIP_CNTRL_3_SYNC_DE (1 << 4)
108 # define VIP_CNTRL_3_SYNC_HS (1 << 5)
109 # define VIP_CNTRL_3_DE_INT (1 << 6)
110 # define VIP_CNTRL_3_EDGE (1 << 7)
111 #define REG_VIP_CNTRL_4 REG(0x00, 0x24) /* write */
112 # define VIP_CNTRL_4_BLC(x) (((x) & 3) << 0)
113 # define VIP_CNTRL_4_BLANKIT(x) (((x) & 3) << 2)
114 # define VIP_CNTRL_4_CCIR656 (1 << 4)
115 # define VIP_CNTRL_4_656_ALT (1 << 5)
116 # define VIP_CNTRL_4_TST_656 (1 << 6)
117 # define VIP_CNTRL_4_TST_PAT (1 << 7)
118 #define REG_VIP_CNTRL_5 REG(0x00, 0x25) /* write */
119 # define VIP_CNTRL_5_CKCASE (1 << 0)
120 # define VIP_CNTRL_5_SP_CNT(x) (((x) & 3) << 1)
121 #define REG_MUX_AP REG(0x00, 0x26) /* read/write */
122 #define REG_MUX_VP_VIP_OUT REG(0x00, 0x27) /* read/write */
123 #define REG_MAT_CONTRL REG(0x00, 0x80) /* write */
124 # define MAT_CONTRL_MAT_SC(x) (((x) & 3) << 0)
125 # define MAT_CONTRL_MAT_BP (1 << 2)
126 #define REG_VIDFORMAT REG(0x00, 0xa0) /* write */
127 #define REG_REFPIX_MSB REG(0x00, 0xa1) /* write */
128 #define REG_REFPIX_LSB REG(0x00, 0xa2) /* write */
129 #define REG_REFLINE_MSB REG(0x00, 0xa3) /* write */
130 #define REG_REFLINE_LSB REG(0x00, 0xa4) /* write */
131 #define REG_NPIX_MSB REG(0x00, 0xa5) /* write */
132 #define REG_NPIX_LSB REG(0x00, 0xa6) /* write */
133 #define REG_NLINE_MSB REG(0x00, 0xa7) /* write */
134 #define REG_NLINE_LSB REG(0x00, 0xa8) /* write */
135 #define REG_VS_LINE_STRT_1_MSB REG(0x00, 0xa9) /* write */
136 #define REG_VS_LINE_STRT_1_LSB REG(0x00, 0xaa) /* write */
137 #define REG_VS_PIX_STRT_1_MSB REG(0x00, 0xab) /* write */
138 #define REG_VS_PIX_STRT_1_LSB REG(0x00, 0xac) /* write */
139 #define REG_VS_LINE_END_1_MSB REG(0x00, 0xad) /* write */
140 #define REG_VS_LINE_END_1_LSB REG(0x00, 0xae) /* write */
141 #define REG_VS_PIX_END_1_MSB REG(0x00, 0xaf) /* write */
142 #define REG_VS_PIX_END_1_LSB REG(0x00, 0xb0) /* write */
143 #define REG_VS_PIX_STRT_2_MSB REG(0x00, 0xb3) /* write */
144 #define REG_VS_PIX_STRT_2_LSB REG(0x00, 0xb4) /* write */
145 #define REG_VS_PIX_END_2_MSB REG(0x00, 0xb7) /* write */
146 #define REG_VS_PIX_END_2_LSB REG(0x00, 0xb8) /* write */
147 #define REG_HS_PIX_START_MSB REG(0x00, 0xb9) /* write */
148 #define REG_HS_PIX_START_LSB REG(0x00, 0xba) /* write */
149 #define REG_HS_PIX_STOP_MSB REG(0x00, 0xbb) /* write */
150 #define REG_HS_PIX_STOP_LSB REG(0x00, 0xbc) /* write */
151 #define REG_VWIN_START_1_MSB REG(0x00, 0xbd) /* write */
152 #define REG_VWIN_START_1_LSB REG(0x00, 0xbe) /* write */
153 #define REG_VWIN_END_1_MSB REG(0x00, 0xbf) /* write */
154 #define REG_VWIN_END_1_LSB REG(0x00, 0xc0) /* write */
155 #define REG_DE_START_MSB REG(0x00, 0xc5) /* write */
156 #define REG_DE_START_LSB REG(0x00, 0xc6) /* write */
157 #define REG_DE_STOP_MSB REG(0x00, 0xc7) /* write */
158 #define REG_DE_STOP_LSB REG(0x00, 0xc8) /* write */
159 #define REG_TBG_CNTRL_0 REG(0x00, 0xca) /* write */
160 # define TBG_CNTRL_0_FRAME_DIS (1 << 5)
161 # define TBG_CNTRL_0_SYNC_MTHD (1 << 6)
162 # define TBG_CNTRL_0_SYNC_ONCE (1 << 7)
163 #define REG_TBG_CNTRL_1 REG(0x00, 0xcb) /* write */
164 # define TBG_CNTRL_1_VH_TGL_0 (1 << 0)
165 # define TBG_CNTRL_1_VH_TGL_1 (1 << 1)
166 # define TBG_CNTRL_1_VH_TGL_2 (1 << 2)
167 # define TBG_CNTRL_1_VHX_EXT_DE (1 << 3)
168 # define TBG_CNTRL_1_VHX_EXT_HS (1 << 4)
169 # define TBG_CNTRL_1_VHX_EXT_VS (1 << 5)
170 # define TBG_CNTRL_1_DWIN_DIS (1 << 6)
171 #define REG_ENABLE_SPACE REG(0x00, 0xd6) /* write */
172 #define REG_HVF_CNTRL_0 REG(0x00, 0xe4) /* write */
173 # define HVF_CNTRL_0_SM (1 << 7)
174 # define HVF_CNTRL_0_RWB (1 << 6)
175 # define HVF_CNTRL_0_PREFIL(x) (((x) & 3) << 2)
176 # define HVF_CNTRL_0_INTPOL(x) (((x) & 3) << 0)
177 #define REG_HVF_CNTRL_1 REG(0x00, 0xe5) /* write */
178 # define HVF_CNTRL_1_FOR (1 << 0)
179 # define HVF_CNTRL_1_YUVBLK (1 << 1)
180 # define HVF_CNTRL_1_VQR(x) (((x) & 3) << 2)
181 # define HVF_CNTRL_1_PAD(x) (((x) & 3) << 4)
182 # define HVF_CNTRL_1_SEMI_PLANAR (1 << 6)
183 #define REG_RPT_CNTRL REG(0x00, 0xf0) /* write */
184 #define REG_I2S_FORMAT REG(0x00, 0xfc) /* read/write */
185 # define I2S_FORMAT(x) (((x) & 3) << 0)
186 #define REG_AIP_CLKSEL REG(0x00, 0xfd) /* write */
187 # define AIP_CLKSEL_FS(x) (((x) & 3) << 0)
188 # define AIP_CLKSEL_CLK_POL(x) (((x) & 1) << 2)
189 # define AIP_CLKSEL_AIP(x) (((x) & 7) << 3)
192 /* Page 02h: PLL settings */
193 #define REG_PLL_SERIAL_1 REG(0x02, 0x00) /* read/write */
194 # define PLL_SERIAL_1_SRL_FDN (1 << 0)
195 # define PLL_SERIAL_1_SRL_IZ(x) (((x) & 3) << 1)
196 # define PLL_SERIAL_1_SRL_MAN_IZ (1 << 6)
197 #define REG_PLL_SERIAL_2 REG(0x02, 0x01) /* read/write */
198 # define PLL_SERIAL_2_SRL_NOSC(x) (((x) & 3) << 0)
199 # define PLL_SERIAL_2_SRL_PR(x) (((x) & 0xf) << 4)
200 #define REG_PLL_SERIAL_3 REG(0x02, 0x02) /* read/write */
201 # define PLL_SERIAL_3_SRL_CCIR (1 << 0)
202 # define PLL_SERIAL_3_SRL_DE (1 << 2)
203 # define PLL_SERIAL_3_SRL_PXIN_SEL (1 << 4)
204 #define REG_SERIALIZER REG(0x02, 0x03) /* read/write */
205 #define REG_BUFFER_OUT REG(0x02, 0x04) /* read/write */
206 #define REG_PLL_SCG1 REG(0x02, 0x05) /* read/write */
207 #define REG_PLL_SCG2 REG(0x02, 0x06) /* read/write */
208 #define REG_PLL_SCGN1 REG(0x02, 0x07) /* read/write */
209 #define REG_PLL_SCGN2 REG(0x02, 0x08) /* read/write */
210 #define REG_PLL_SCGR1 REG(0x02, 0x09) /* read/write */
211 #define REG_PLL_SCGR2 REG(0x02, 0x0a) /* read/write */
212 #define REG_AUDIO_DIV REG(0x02, 0x0e) /* read/write */
213 # define AUDIO_DIV_SERCLK_1 0
214 # define AUDIO_DIV_SERCLK_2 1
215 # define AUDIO_DIV_SERCLK_4 2
216 # define AUDIO_DIV_SERCLK_8 3
217 # define AUDIO_DIV_SERCLK_16 4
218 # define AUDIO_DIV_SERCLK_32 5
219 #define REG_SEL_CLK REG(0x02, 0x11) /* read/write */
220 # define SEL_CLK_SEL_CLK1 (1 << 0)
221 # define SEL_CLK_SEL_VRF_CLK(x) (((x) & 3) << 1)
222 # define SEL_CLK_ENA_SC_CLK (1 << 3)
223 #define REG_ANA_GENERAL REG(0x02, 0x12) /* read/write */
226 /* Page 09h: EDID Control */
227 #define REG_EDID_DATA_0 REG(0x09, 0x00) /* read */
228 /* next 127 successive registers are the EDID block */
229 #define REG_EDID_CTRL REG(0x09, 0xfa) /* read/write */
230 #define REG_DDC_ADDR REG(0x09, 0xfb) /* read/write */
231 #define REG_DDC_OFFS REG(0x09, 0xfc) /* read/write */
232 #define REG_DDC_SEGM_ADDR REG(0x09, 0xfd) /* read/write */
233 #define REG_DDC_SEGM REG(0x09, 0xfe) /* read/write */
236 /* Page 10h: information frames and packets */
237 #define REG_IF1_HB0 REG(0x10, 0x20) /* read/write */
238 #define REG_IF2_HB0 REG(0x10, 0x40) /* read/write */
239 #define REG_IF3_HB0 REG(0x10, 0x60) /* read/write */
240 #define REG_IF4_HB0 REG(0x10, 0x80) /* read/write */
241 #define REG_IF5_HB0 REG(0x10, 0xa0) /* read/write */
244 /* Page 11h: audio settings and content info packets */
245 #define REG_AIP_CNTRL_0 REG(0x11, 0x00) /* read/write */
246 # define AIP_CNTRL_0_RST_FIFO (1 << 0)
247 # define AIP_CNTRL_0_SWAP (1 << 1)
248 # define AIP_CNTRL_0_LAYOUT (1 << 2)
249 # define AIP_CNTRL_0_ACR_MAN (1 << 5)
250 # define AIP_CNTRL_0_RST_CTS (1 << 6)
251 #define REG_CA_I2S REG(0x11, 0x01) /* read/write */
252 # define CA_I2S_CA_I2S(x) (((x) & 31) << 0)
253 # define CA_I2S_HBR_CHSTAT (1 << 6)
254 #define REG_LATENCY_RD REG(0x11, 0x04) /* read/write */
255 #define REG_ACR_CTS_0 REG(0x11, 0x05) /* read/write */
256 #define REG_ACR_CTS_1 REG(0x11, 0x06) /* read/write */
257 #define REG_ACR_CTS_2 REG(0x11, 0x07) /* read/write */
258 #define REG_ACR_N_0 REG(0x11, 0x08) /* read/write */
259 #define REG_ACR_N_1 REG(0x11, 0x09) /* read/write */
260 #define REG_ACR_N_2 REG(0x11, 0x0a) /* read/write */
261 #define REG_CTS_N REG(0x11, 0x0c) /* read/write */
262 # define CTS_N_K(x) (((x) & 7) << 0)
263 # define CTS_N_M(x) (((x) & 3) << 4)
264 #define REG_ENC_CNTRL REG(0x11, 0x0d) /* read/write */
265 # define ENC_CNTRL_RST_ENC (1 << 0)
266 # define ENC_CNTRL_RST_SEL (1 << 1)
267 # define ENC_CNTRL_CTL_CODE(x) (((x) & 3) << 2)
268 #define REG_DIP_FLAGS REG(0x11, 0x0e) /* read/write */
269 # define DIP_FLAGS_ACR (1 << 0)
270 # define DIP_FLAGS_GC (1 << 1)
271 #define REG_DIP_IF_FLAGS REG(0x11, 0x0f) /* read/write */
272 # define DIP_IF_FLAGS_IF1 (1 << 1)
273 # define DIP_IF_FLAGS_IF2 (1 << 2)
274 # define DIP_IF_FLAGS_IF3 (1 << 3)
275 # define DIP_IF_FLAGS_IF4 (1 << 4)
276 # define DIP_IF_FLAGS_IF5 (1 << 5)
277 #define REG_CH_STAT_B(x) REG(0x11, 0x14 + (x)) /* read/write */
280 /* Page 12h: HDCP and OTP */
281 #define REG_TX3 REG(0x12, 0x9a) /* read/write */
282 #define REG_TX4 REG(0x12, 0x9b) /* read/write */
283 # define TX4_PD_RAM (1 << 1)
284 #define REG_TX33 REG(0x12, 0xb8) /* read/write */
285 # define TX33_HDMI (1 << 1)
288 /* Page 13h: Gamut related metadata packets */
292 /* CEC registers: (not paged)
294 #define REG_CEC_FRO_IM_CLK_CTRL 0xfb /* read/write */
295 # define CEC_FRO_IM_CLK_CTRL_GHOST_DIS (1 << 7)
296 # define CEC_FRO_IM_CLK_CTRL_ENA_OTP (1 << 6)
297 # define CEC_FRO_IM_CLK_CTRL_IMCLK_SEL (1 << 1)
298 # define CEC_FRO_IM_CLK_CTRL_FRO_DIV (1 << 0)
299 #define REG_CEC_RXSHPDLEV 0xfe /* read */
300 # define CEC_RXSHPDLEV_RXSENS (1 << 0)
301 # define CEC_RXSHPDLEV_HPD (1 << 1)
303 #define REG_CEC_ENAMODS 0xff /* read/write */
304 # define CEC_ENAMODS_DIS_FRO (1 << 6)
305 # define CEC_ENAMODS_DIS_CCLK (1 << 5)
306 # define CEC_ENAMODS_EN_RXSENS (1 << 2)
307 # define CEC_ENAMODS_EN_HDMI (1 << 1)
308 # define CEC_ENAMODS_EN_CEC (1 << 0)
311 /* Device versions: */
312 #define TDA9989N2 0x0101
313 #define TDA19989 0x0201
314 #define TDA19989N2 0x0202
315 #define TDA19988 0x0301
318 cec_write(struct drm_encoder *encoder, uint16_t addr, uint8_t val)
320 struct i2c_client *client = to_tda998x_priv(encoder)->cec;
321 uint8_t buf[] = {addr, val};
324 ret = i2c_master_send(client, buf, ARRAY_SIZE(buf));
326 dev_err(&client->dev, "Error %d writing to cec:0x%x\n", ret, addr);
330 cec_read(struct drm_encoder *encoder, uint8_t addr)
332 struct i2c_client *client = to_tda998x_priv(encoder)->cec;
336 ret = i2c_master_send(client, &addr, sizeof(addr));
340 ret = i2c_master_recv(client, &val, sizeof(val));
347 dev_err(&client->dev, "Error %d reading from cec:0x%x\n", ret, addr);
352 set_page(struct drm_encoder *encoder, uint16_t reg)
354 struct tda998x_priv *priv = to_tda998x_priv(encoder);
356 if (REG2PAGE(reg) != priv->current_page) {
357 struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
359 REG_CURPAGE, REG2PAGE(reg)
361 int ret = i2c_master_send(client, buf, sizeof(buf));
363 dev_err(&client->dev, "Error %d writing to REG_CURPAGE\n", ret);
365 priv->current_page = REG2PAGE(reg);
370 reg_read_range(struct drm_encoder *encoder, uint16_t reg, char *buf, int cnt)
372 struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
373 uint8_t addr = REG2ADDR(reg);
376 set_page(encoder, reg);
378 ret = i2c_master_send(client, &addr, sizeof(addr));
382 ret = i2c_master_recv(client, buf, cnt);
389 dev_err(&client->dev, "Error %d reading from 0x%x\n", ret, reg);
394 reg_write_range(struct drm_encoder *encoder, uint16_t reg, uint8_t *p, int cnt)
396 struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
400 buf[0] = REG2ADDR(reg);
401 memcpy(&buf[1], p, cnt);
403 set_page(encoder, reg);
405 ret = i2c_master_send(client, buf, cnt + 1);
407 dev_err(&client->dev, "Error %d writing to 0x%x\n", ret, reg);
411 reg_read(struct drm_encoder *encoder, uint16_t reg)
414 reg_read_range(encoder, reg, &val, sizeof(val));
419 reg_write(struct drm_encoder *encoder, uint16_t reg, uint8_t val)
421 struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
422 uint8_t buf[] = {REG2ADDR(reg), val};
425 set_page(encoder, reg);
427 ret = i2c_master_send(client, buf, ARRAY_SIZE(buf));
429 dev_err(&client->dev, "Error %d writing to 0x%x\n", ret, reg);
433 reg_write16(struct drm_encoder *encoder, uint16_t reg, uint16_t val)
435 struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
436 uint8_t buf[] = {REG2ADDR(reg), val >> 8, val};
439 set_page(encoder, reg);
441 ret = i2c_master_send(client, buf, ARRAY_SIZE(buf));
443 dev_err(&client->dev, "Error %d writing to 0x%x\n", ret, reg);
447 reg_set(struct drm_encoder *encoder, uint16_t reg, uint8_t val)
449 reg_write(encoder, reg, reg_read(encoder, reg) | val);
453 reg_clear(struct drm_encoder *encoder, uint16_t reg, uint8_t val)
455 reg_write(encoder, reg, reg_read(encoder, reg) & ~val);
459 tda998x_reset(struct drm_encoder *encoder)
461 /* reset audio and i2c master: */
462 reg_set(encoder, REG_SOFTRESET, SOFTRESET_AUDIO | SOFTRESET_I2C_MASTER);
464 reg_clear(encoder, REG_SOFTRESET, SOFTRESET_AUDIO | SOFTRESET_I2C_MASTER);
467 /* reset transmitter: */
468 reg_set(encoder, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
469 reg_clear(encoder, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
471 /* PLL registers common configuration */
472 reg_write(encoder, REG_PLL_SERIAL_1, 0x00);
473 reg_write(encoder, REG_PLL_SERIAL_2, PLL_SERIAL_2_SRL_NOSC(1));
474 reg_write(encoder, REG_PLL_SERIAL_3, 0x00);
475 reg_write(encoder, REG_SERIALIZER, 0x00);
476 reg_write(encoder, REG_BUFFER_OUT, 0x00);
477 reg_write(encoder, REG_PLL_SCG1, 0x00);
478 reg_write(encoder, REG_AUDIO_DIV, AUDIO_DIV_SERCLK_8);
479 reg_write(encoder, REG_SEL_CLK, SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
480 reg_write(encoder, REG_PLL_SCGN1, 0xfa);
481 reg_write(encoder, REG_PLL_SCGN2, 0x00);
482 reg_write(encoder, REG_PLL_SCGR1, 0x5b);
483 reg_write(encoder, REG_PLL_SCGR2, 0x00);
484 reg_write(encoder, REG_PLL_SCG2, 0x10);
486 /* Write the default value MUX register */
487 reg_write(encoder, REG_MUX_VP_VIP_OUT, 0x24);
490 static uint8_t tda998x_cksum(uint8_t *buf, size_t bytes)
496 return (255 - sum) + 1;
500 #define PB(x) (HB(2) + 1 + (x))
503 tda998x_write_if(struct drm_encoder *encoder, uint8_t bit, uint16_t addr,
504 uint8_t *buf, size_t size)
506 buf[PB(0)] = tda998x_cksum(buf, size);
508 reg_clear(encoder, REG_DIP_IF_FLAGS, bit);
509 reg_write_range(encoder, addr, buf, size);
510 reg_set(encoder, REG_DIP_IF_FLAGS, bit);
514 tda998x_write_aif(struct drm_encoder *encoder, struct tda998x_encoder_params *p)
516 uint8_t buf[PB(5) + 1];
522 buf[PB(1)] = p->audio_frame[1] & 0x07; /* CC */
523 buf[PB(2)] = p->audio_frame[2] & 0x1c; /* SF */
524 buf[PB(4)] = p->audio_frame[4];
525 buf[PB(5)] = p->audio_frame[5] & 0xf8; /* DM_INH + LSV */
527 tda998x_write_if(encoder, DIP_IF_FLAGS_IF4, REG_IF4_HB0, buf,
532 tda998x_write_avi(struct drm_encoder *encoder, struct drm_display_mode *mode)
534 uint8_t buf[PB(13) + 1];
536 memset(buf, 0, sizeof(buf));
540 buf[PB(4)] = drm_match_cea_mode(mode);
542 tda998x_write_if(encoder, DIP_IF_FLAGS_IF2, REG_IF2_HB0, buf,
546 static void tda998x_audio_mute(struct drm_encoder *encoder, bool on)
549 reg_set(encoder, REG_SOFTRESET, SOFTRESET_AUDIO);
550 reg_clear(encoder, REG_SOFTRESET, SOFTRESET_AUDIO);
551 reg_set(encoder, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
553 reg_clear(encoder, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
558 tda998x_configure_audio(struct drm_encoder *encoder,
559 struct drm_display_mode *mode, struct tda998x_encoder_params *p)
561 uint8_t buf[6], clksel_aip, clksel_fs, ca_i2s, cts_n, adiv;
564 /* Enable audio ports */
565 reg_write(encoder, REG_ENA_AP, p->audio_cfg);
566 reg_write(encoder, REG_ENA_ACLK, p->audio_clk_cfg);
568 /* Set audio input source */
569 switch (p->audio_format) {
571 reg_write(encoder, REG_MUX_AP, 0x40);
572 clksel_aip = AIP_CLKSEL_AIP(0);
574 clksel_fs = AIP_CLKSEL_FS(2);
575 cts_n = CTS_N_M(3) | CTS_N_K(3);
580 reg_write(encoder, REG_MUX_AP, 0x64);
581 clksel_aip = AIP_CLKSEL_AIP(1);
583 clksel_fs = AIP_CLKSEL_FS(0);
584 cts_n = CTS_N_M(3) | CTS_N_K(3);
585 ca_i2s = CA_I2S_CA_I2S(0);
589 reg_write(encoder, REG_AIP_CLKSEL, clksel_aip);
590 reg_clear(encoder, REG_AIP_CNTRL_0, AIP_CNTRL_0_LAYOUT);
592 /* Enable automatic CTS generation */
593 reg_clear(encoder, REG_AIP_CNTRL_0, AIP_CNTRL_0_ACR_MAN);
594 reg_write(encoder, REG_CTS_N, cts_n);
597 * Audio input somehow depends on HDMI line rate which is
598 * related to pixclk. Testing showed that modes with pixclk
599 * >100MHz need a larger divider while <40MHz need the default.
600 * There is no detailed info in the datasheet, so we just
601 * assume 100MHz requires larger divider.
603 if (mode->clock > 100000)
604 adiv = AUDIO_DIV_SERCLK_16;
606 adiv = AUDIO_DIV_SERCLK_8;
607 reg_write(encoder, REG_AUDIO_DIV, adiv);
610 * This is the approximate value of N, which happens to be
611 * the recommended values for non-coherent clocks.
613 n = 128 * p->audio_sample_rate / 1000;
615 /* Write the CTS and N values */
622 reg_write_range(encoder, REG_ACR_CTS_0, buf, 6);
624 /* Set CTS clock reference */
625 reg_write(encoder, REG_AIP_CLKSEL, clksel_aip | clksel_fs);
627 /* Reset CTS generator */
628 reg_set(encoder, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_CTS);
629 reg_clear(encoder, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_CTS);
631 /* Write the channel status */
636 reg_write_range(encoder, REG_CH_STAT_B(0), buf, 4);
638 tda998x_audio_mute(encoder, true);
640 tda998x_audio_mute(encoder, false);
642 /* Write the audio information packet */
643 tda998x_write_aif(encoder, p);
646 /* DRM encoder functions */
649 tda998x_encoder_set_config(struct drm_encoder *encoder, void *params)
651 struct tda998x_priv *priv = to_tda998x_priv(encoder);
652 struct tda998x_encoder_params *p = params;
654 priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(p->swap_a) |
655 (p->mirr_a ? VIP_CNTRL_0_MIRR_A : 0) |
656 VIP_CNTRL_0_SWAP_B(p->swap_b) |
657 (p->mirr_b ? VIP_CNTRL_0_MIRR_B : 0);
658 priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(p->swap_c) |
659 (p->mirr_c ? VIP_CNTRL_1_MIRR_C : 0) |
660 VIP_CNTRL_1_SWAP_D(p->swap_d) |
661 (p->mirr_d ? VIP_CNTRL_1_MIRR_D : 0);
662 priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(p->swap_e) |
663 (p->mirr_e ? VIP_CNTRL_2_MIRR_E : 0) |
664 VIP_CNTRL_2_SWAP_F(p->swap_f) |
665 (p->mirr_f ? VIP_CNTRL_2_MIRR_F : 0);
671 tda998x_encoder_dpms(struct drm_encoder *encoder, int mode)
673 struct tda998x_priv *priv = to_tda998x_priv(encoder);
675 /* we only care about on or off: */
676 if (mode != DRM_MODE_DPMS_ON)
677 mode = DRM_MODE_DPMS_OFF;
679 if (mode == priv->dpms)
683 case DRM_MODE_DPMS_ON:
684 /* enable video ports, audio will be enabled later */
685 reg_write(encoder, REG_ENA_VP_0, 0xff);
686 reg_write(encoder, REG_ENA_VP_1, 0xff);
687 reg_write(encoder, REG_ENA_VP_2, 0xff);
688 /* set muxing after enabling ports: */
689 reg_write(encoder, REG_VIP_CNTRL_0, priv->vip_cntrl_0);
690 reg_write(encoder, REG_VIP_CNTRL_1, priv->vip_cntrl_1);
691 reg_write(encoder, REG_VIP_CNTRL_2, priv->vip_cntrl_2);
693 case DRM_MODE_DPMS_OFF:
694 /* disable audio and video ports */
695 reg_write(encoder, REG_ENA_AP, 0x00);
696 reg_write(encoder, REG_ENA_VP_0, 0x00);
697 reg_write(encoder, REG_ENA_VP_1, 0x00);
698 reg_write(encoder, REG_ENA_VP_2, 0x00);
706 tda998x_encoder_save(struct drm_encoder *encoder)
712 tda998x_encoder_restore(struct drm_encoder *encoder)
718 tda998x_encoder_mode_fixup(struct drm_encoder *encoder,
719 const struct drm_display_mode *mode,
720 struct drm_display_mode *adjusted_mode)
726 tda998x_encoder_mode_valid(struct drm_encoder *encoder,
727 struct drm_display_mode *mode)
733 tda998x_encoder_mode_set(struct drm_encoder *encoder,
734 struct drm_display_mode *mode,
735 struct drm_display_mode *adjusted_mode)
737 struct tda998x_priv *priv = to_tda998x_priv(encoder);
738 uint16_t hs_start, hs_end, line_start, line_end;
739 uint16_t vwin_start, vwin_end, de_start, de_end;
740 uint16_t ref_pix, ref_line, pix_start2;
741 uint8_t reg, div, rep;
743 hs_start = mode->hsync_start - mode->hdisplay;
744 hs_end = mode->hsync_end - mode->hdisplay;
746 line_end = 1 + mode->vsync_end - mode->vsync_start;
747 vwin_start = mode->vtotal - mode->vsync_start;
748 vwin_end = vwin_start + mode->vdisplay;
749 de_start = mode->htotal - mode->hdisplay;
750 de_end = mode->htotal;
753 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
754 pix_start2 = (mode->htotal / 2) + hs_start;
756 /* TODO how is this value calculated? It is 2 for all common
757 * formats in the tables in out of tree nxp driver (assuming
758 * I've properly deciphered their byzantine table system)
762 /* this might changes for other color formats from the CRTC: */
763 ref_pix = 3 + hs_start;
765 div = 148500 / mode->clock;
767 DBG("clock=%d, div=%u", mode->clock, div);
768 DBG("hs_start=%u, hs_end=%u, line_start=%u, line_end=%u",
769 hs_start, hs_end, line_start, line_end);
770 DBG("vwin_start=%u, vwin_end=%u, de_start=%u, de_end=%u",
771 vwin_start, vwin_end, de_start, de_end);
772 DBG("ref_line=%u, ref_pix=%u, pix_start2=%u",
773 ref_line, ref_pix, pix_start2);
775 /* mute the audio FIFO: */
776 reg_set(encoder, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
778 /* set HDMI HDCP mode off: */
779 reg_set(encoder, REG_TBG_CNTRL_1, TBG_CNTRL_1_DWIN_DIS);
780 reg_clear(encoder, REG_TX33, TX33_HDMI);
782 reg_write(encoder, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(0));
783 /* no pre-filter or interpolator: */
784 reg_write(encoder, REG_HVF_CNTRL_0, HVF_CNTRL_0_PREFIL(0) |
785 HVF_CNTRL_0_INTPOL(0));
786 reg_write(encoder, REG_VIP_CNTRL_5, VIP_CNTRL_5_SP_CNT(0));
787 reg_write(encoder, REG_VIP_CNTRL_4, VIP_CNTRL_4_BLANKIT(0) |
789 reg_clear(encoder, REG_PLL_SERIAL_3, PLL_SERIAL_3_SRL_CCIR);
791 reg_clear(encoder, REG_PLL_SERIAL_1, PLL_SERIAL_1_SRL_MAN_IZ);
792 reg_clear(encoder, REG_PLL_SERIAL_3, PLL_SERIAL_3_SRL_DE);
793 reg_write(encoder, REG_SERIALIZER, 0);
794 reg_write(encoder, REG_HVF_CNTRL_1, HVF_CNTRL_1_VQR(0));
796 /* TODO enable pixel repeat for pixel rates less than 25Msamp/s */
798 reg_write(encoder, REG_RPT_CNTRL, 0);
799 reg_write(encoder, REG_SEL_CLK, SEL_CLK_SEL_VRF_CLK(0) |
800 SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
802 reg_write(encoder, REG_PLL_SERIAL_2, PLL_SERIAL_2_SRL_NOSC(div) |
803 PLL_SERIAL_2_SRL_PR(rep));
805 reg_write16(encoder, REG_VS_PIX_STRT_2_MSB, pix_start2);
806 reg_write16(encoder, REG_VS_PIX_END_2_MSB, pix_start2);
808 /* set color matrix bypass flag: */
809 reg_set(encoder, REG_MAT_CONTRL, MAT_CONTRL_MAT_BP);
811 /* set BIAS tmds value: */
812 reg_write(encoder, REG_ANA_GENERAL, 0x09);
814 reg_clear(encoder, REG_TBG_CNTRL_0, TBG_CNTRL_0_SYNC_MTHD);
816 reg_write(encoder, REG_VIP_CNTRL_3, 0);
817 reg_set(encoder, REG_VIP_CNTRL_3, VIP_CNTRL_3_SYNC_HS);
818 if (mode->flags & DRM_MODE_FLAG_NVSYNC)
819 reg_set(encoder, REG_VIP_CNTRL_3, VIP_CNTRL_3_V_TGL);
821 if (mode->flags & DRM_MODE_FLAG_NHSYNC)
822 reg_set(encoder, REG_VIP_CNTRL_3, VIP_CNTRL_3_H_TGL);
824 reg_write(encoder, REG_VIDFORMAT, 0x00);
825 reg_write16(encoder, REG_NPIX_MSB, mode->htotal);
826 reg_write16(encoder, REG_NLINE_MSB, mode->vtotal);
827 reg_write16(encoder, REG_VS_LINE_STRT_1_MSB, line_start);
828 reg_write16(encoder, REG_VS_LINE_END_1_MSB, line_end);
829 reg_write16(encoder, REG_VS_PIX_STRT_1_MSB, hs_start);
830 reg_write16(encoder, REG_VS_PIX_END_1_MSB, hs_start);
831 reg_write16(encoder, REG_HS_PIX_START_MSB, hs_start);
832 reg_write16(encoder, REG_HS_PIX_STOP_MSB, hs_end);
833 reg_write16(encoder, REG_VWIN_START_1_MSB, vwin_start);
834 reg_write16(encoder, REG_VWIN_END_1_MSB, vwin_end);
835 reg_write16(encoder, REG_DE_START_MSB, de_start);
836 reg_write16(encoder, REG_DE_STOP_MSB, de_end);
838 if (priv->rev == TDA19988) {
839 /* let incoming pixels fill the active space (if any) */
840 reg_write(encoder, REG_ENABLE_SPACE, 0x01);
843 reg_write16(encoder, REG_REFPIX_MSB, ref_pix);
844 reg_write16(encoder, REG_REFLINE_MSB, ref_line);
846 reg = TBG_CNTRL_1_DWIN_DIS | /* HDCP off */
847 TBG_CNTRL_1_VH_TGL_2;
849 * It is questionable whether this is correct - the nxp driver
850 * does not set VH_TGL_2 and the below for all display modes.
852 if (mode->flags & (DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC))
853 reg |= TBG_CNTRL_1_VH_TGL_0;
854 reg_set(encoder, REG_TBG_CNTRL_1, reg);
856 /* must be last register set: */
857 reg_clear(encoder, REG_TBG_CNTRL_0, TBG_CNTRL_0_SYNC_ONCE);
859 /* Only setup the info frames if the sink is HDMI */
860 if (priv->is_hdmi_sink) {
861 /* We need to turn HDMI HDCP stuff on to get audio through */
862 reg_clear(encoder, REG_TBG_CNTRL_1, TBG_CNTRL_1_DWIN_DIS);
863 reg_write(encoder, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(1));
864 reg_set(encoder, REG_TX33, TX33_HDMI);
866 tda998x_write_avi(encoder, adjusted_mode);
868 if (priv->params.audio_cfg)
869 tda998x_configure_audio(encoder, adjusted_mode,
874 static enum drm_connector_status
875 tda998x_encoder_detect(struct drm_encoder *encoder,
876 struct drm_connector *connector)
878 uint8_t val = cec_read(encoder, REG_CEC_RXSHPDLEV);
879 return (val & CEC_RXSHPDLEV_HPD) ? connector_status_connected :
880 connector_status_disconnected;
884 read_edid_block(struct drm_encoder *encoder, uint8_t *buf, int blk)
886 uint8_t offset, segptr;
889 /* enable EDID read irq: */
890 reg_set(encoder, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
892 offset = (blk & 1) ? 128 : 0;
895 reg_write(encoder, REG_DDC_ADDR, 0xa0);
896 reg_write(encoder, REG_DDC_OFFS, offset);
897 reg_write(encoder, REG_DDC_SEGM_ADDR, 0x60);
898 reg_write(encoder, REG_DDC_SEGM, segptr);
900 /* enable reading EDID: */
901 reg_write(encoder, REG_EDID_CTRL, 0x1);
903 /* flag must be cleared by sw: */
904 reg_write(encoder, REG_EDID_CTRL, 0x0);
906 /* wait for block read to complete: */
907 for (i = 100; i > 0; i--) {
908 uint8_t val = reg_read(encoder, REG_INT_FLAGS_2);
909 if (val & INT_FLAGS_2_EDID_BLK_RD)
917 ret = reg_read_range(encoder, REG_EDID_DATA_0, buf, EDID_LENGTH);
918 if (ret != EDID_LENGTH) {
919 dev_err(encoder->dev->dev, "failed to read edid block %d: %d",
924 reg_clear(encoder, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
930 do_get_edid(struct drm_encoder *encoder)
932 struct tda998x_priv *priv = to_tda998x_priv(encoder);
933 int j = 0, valid_extensions = 0;
934 uint8_t *block, *new;
935 bool print_bad_edid = drm_debug & DRM_UT_KMS;
937 if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
940 if (priv->rev == TDA19988)
941 reg_clear(encoder, REG_TX4, TX4_PD_RAM);
943 /* base block fetch */
944 if (read_edid_block(encoder, block, 0))
947 if (!drm_edid_block_valid(block, 0, print_bad_edid))
950 /* if there's no extensions, we're done */
951 if (block[0x7e] == 0)
954 new = krealloc(block, (block[0x7e] + 1) * EDID_LENGTH, GFP_KERNEL);
959 for (j = 1; j <= block[0x7e]; j++) {
960 uint8_t *ext_block = block + (valid_extensions + 1) * EDID_LENGTH;
961 if (read_edid_block(encoder, ext_block, j))
964 if (!drm_edid_block_valid(ext_block, j, print_bad_edid))
970 if (valid_extensions != block[0x7e]) {
971 block[EDID_LENGTH-1] += block[0x7e] - valid_extensions;
972 block[0x7e] = valid_extensions;
973 new = krealloc(block, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);
980 if (priv->rev == TDA19988)
981 reg_set(encoder, REG_TX4, TX4_PD_RAM);
986 if (priv->rev == TDA19988)
987 reg_set(encoder, REG_TX4, TX4_PD_RAM);
988 dev_warn(encoder->dev->dev, "failed to read EDID\n");
994 tda998x_encoder_get_modes(struct drm_encoder *encoder,
995 struct drm_connector *connector)
997 struct tda998x_priv *priv = to_tda998x_priv(encoder);
998 struct edid *edid = (struct edid *)do_get_edid(encoder);
1002 drm_mode_connector_update_edid_property(connector, edid);
1003 n = drm_add_edid_modes(connector, edid);
1004 priv->is_hdmi_sink = drm_detect_hdmi_monitor(edid);
1012 tda998x_encoder_create_resources(struct drm_encoder *encoder,
1013 struct drm_connector *connector)
1020 tda998x_encoder_set_property(struct drm_encoder *encoder,
1021 struct drm_connector *connector,
1022 struct drm_property *property,
1030 tda998x_encoder_destroy(struct drm_encoder *encoder)
1032 struct tda998x_priv *priv = to_tda998x_priv(encoder);
1033 drm_i2c_encoder_destroy(encoder);
1037 static struct drm_encoder_slave_funcs tda998x_encoder_funcs = {
1038 .set_config = tda998x_encoder_set_config,
1039 .destroy = tda998x_encoder_destroy,
1040 .dpms = tda998x_encoder_dpms,
1041 .save = tda998x_encoder_save,
1042 .restore = tda998x_encoder_restore,
1043 .mode_fixup = tda998x_encoder_mode_fixup,
1044 .mode_valid = tda998x_encoder_mode_valid,
1045 .mode_set = tda998x_encoder_mode_set,
1046 .detect = tda998x_encoder_detect,
1047 .get_modes = tda998x_encoder_get_modes,
1048 .create_resources = tda998x_encoder_create_resources,
1049 .set_property = tda998x_encoder_set_property,
1052 /* I2C driver functions */
1055 tda998x_probe(struct i2c_client *client, const struct i2c_device_id *id)
1061 tda998x_remove(struct i2c_client *client)
1067 tda998x_encoder_init(struct i2c_client *client,
1068 struct drm_device *dev,
1069 struct drm_encoder_slave *encoder_slave)
1071 struct drm_encoder *encoder = &encoder_slave->base;
1072 struct tda998x_priv *priv;
1074 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
1078 priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(2) | VIP_CNTRL_0_SWAP_B(3);
1079 priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(0) | VIP_CNTRL_1_SWAP_D(1);
1080 priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(4) | VIP_CNTRL_2_SWAP_F(5);
1082 priv->current_page = 0;
1083 priv->cec = i2c_new_dummy(client->adapter, 0x34);
1084 priv->dpms = DRM_MODE_DPMS_OFF;
1086 encoder_slave->slave_priv = priv;
1087 encoder_slave->slave_funcs = &tda998x_encoder_funcs;
1089 /* wake up the device: */
1090 cec_write(encoder, REG_CEC_ENAMODS,
1091 CEC_ENAMODS_EN_RXSENS | CEC_ENAMODS_EN_HDMI);
1093 tda998x_reset(encoder);
1096 priv->rev = reg_read(encoder, REG_VERSION_LSB) |
1097 reg_read(encoder, REG_VERSION_MSB) << 8;
1099 /* mask off feature bits: */
1100 priv->rev &= ~0x30; /* not-hdcp and not-scalar bit */
1102 switch (priv->rev) {
1103 case TDA9989N2: dev_info(dev->dev, "found TDA9989 n2"); break;
1104 case TDA19989: dev_info(dev->dev, "found TDA19989"); break;
1105 case TDA19989N2: dev_info(dev->dev, "found TDA19989 n2"); break;
1106 case TDA19988: dev_info(dev->dev, "found TDA19988"); break;
1108 DBG("found unsupported device: %04x", priv->rev);
1112 /* after reset, enable DDC: */
1113 reg_write(encoder, REG_DDC_DISABLE, 0x00);
1115 /* set clock on DDC channel: */
1116 reg_write(encoder, REG_TX3, 39);
1118 /* if necessary, disable multi-master: */
1119 if (priv->rev == TDA19989)
1120 reg_set(encoder, REG_I2C_MASTER, I2C_MASTER_DIS_MM);
1122 cec_write(encoder, REG_CEC_FRO_IM_CLK_CTRL,
1123 CEC_FRO_IM_CLK_CTRL_GHOST_DIS | CEC_FRO_IM_CLK_CTRL_IMCLK_SEL);
1128 /* if encoder_init fails, the encoder slave is never registered,
1132 i2c_unregister_device(priv->cec);
1134 encoder_slave->slave_priv = NULL;
1135 encoder_slave->slave_funcs = NULL;
1139 static struct i2c_device_id tda998x_ids[] = {
1143 MODULE_DEVICE_TABLE(i2c, tda998x_ids);
1145 static struct drm_i2c_encoder_driver tda998x_driver = {
1147 .probe = tda998x_probe,
1148 .remove = tda998x_remove,
1152 .id_table = tda998x_ids,
1154 .encoder_init = tda998x_encoder_init,
1157 /* Module initialization */
1163 return drm_i2c_encoder_register(THIS_MODULE, &tda998x_driver);
1170 drm_i2c_encoder_unregister(&tda998x_driver);
1173 MODULE_AUTHOR("Rob Clark <robdclark@gmail.com");
1174 MODULE_DESCRIPTION("NXP Semiconductors TDA998X HDMI Encoder");
1175 MODULE_LICENSE("GPL");
1177 module_init(tda998x_init);
1178 module_exit(tda998x_exit);