| Archit Taneja | 2437e7c | 2016-06-15 16:24:03 +0530 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2016, The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 and |
| 6 | * only version 2 as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | */ |
| 13 | |
| 14 | #include "adv7511.h" |
| 15 | |
| 16 | static const struct reg_sequence adv7533_fixed_registers[] = { |
| 17 | { 0x16, 0x20 }, |
| 18 | { 0x9a, 0xe0 }, |
| 19 | { 0xba, 0x70 }, |
| 20 | { 0xde, 0x82 }, |
| 21 | { 0xe4, 0x40 }, |
| 22 | { 0xe5, 0x80 }, |
| 23 | }; |
| 24 | |
| 25 | static const struct reg_sequence adv7533_cec_fixed_registers[] = { |
| 26 | { 0x15, 0xd0 }, |
| 27 | { 0x17, 0xd0 }, |
| 28 | { 0x24, 0x20 }, |
| 29 | { 0x57, 0x11 }, |
| 30 | }; |
| 31 | |
| 32 | static const struct regmap_config adv7533_cec_regmap_config = { |
| 33 | .reg_bits = 8, |
| 34 | .val_bits = 8, |
| 35 | |
| 36 | .max_register = 0xff, |
| 37 | .cache_type = REGCACHE_RBTREE, |
| 38 | }; |
| 39 | |
| 40 | void adv7533_dsi_power_on(struct adv7511 *adv) |
| 41 | { |
| 42 | /* set number of dsi lanes (hardcoded to 4 for now) */ |
| 43 | regmap_write(adv->regmap_cec, 0x1c, 4 << 4); |
| 44 | /* disable internal timing generator */ |
| 45 | regmap_write(adv->regmap_cec, 0x27, 0x0b); |
| 46 | /* enable hdmi */ |
| 47 | regmap_write(adv->regmap_cec, 0x03, 0x89); |
| 48 | /* disable test mode */ |
| 49 | regmap_write(adv->regmap_cec, 0x55, 0x00); |
| 50 | |
| 51 | regmap_register_patch(adv->regmap_cec, adv7533_cec_fixed_registers, |
| 52 | ARRAY_SIZE(adv7533_cec_fixed_registers)); |
| 53 | } |
| 54 | |
| 55 | void adv7533_dsi_power_off(struct adv7511 *adv) |
| 56 | { |
| 57 | /* disable hdmi */ |
| 58 | regmap_write(adv->regmap_cec, 0x03, 0x0b); |
| 59 | } |
| 60 | |
| 61 | int adv7533_patch_registers(struct adv7511 *adv) |
| 62 | { |
| 63 | return regmap_register_patch(adv->regmap, |
| 64 | adv7533_fixed_registers, |
| 65 | ARRAY_SIZE(adv7533_fixed_registers)); |
| 66 | } |
| 67 | |
| 68 | void adv7533_uninit_cec(struct adv7511 *adv) |
| 69 | { |
| 70 | i2c_unregister_device(adv->i2c_cec); |
| 71 | } |
| 72 | |
| 73 | static const int cec_i2c_addr = 0x78; |
| 74 | |
| 75 | int adv7533_init_cec(struct adv7511 *adv) |
| 76 | { |
| 77 | int ret; |
| 78 | |
| 79 | adv->i2c_cec = i2c_new_dummy(adv->i2c_main->adapter, cec_i2c_addr >> 1); |
| 80 | if (!adv->i2c_cec) |
| 81 | return -ENOMEM; |
| 82 | |
| 83 | adv->regmap_cec = devm_regmap_init_i2c(adv->i2c_cec, |
| 84 | &adv7533_cec_regmap_config); |
| 85 | if (IS_ERR(adv->regmap_cec)) { |
| 86 | ret = PTR_ERR(adv->regmap_cec); |
| 87 | goto err; |
| 88 | } |
| 89 | |
| 90 | ret = regmap_register_patch(adv->regmap_cec, |
| 91 | adv7533_cec_fixed_registers, |
| 92 | ARRAY_SIZE(adv7533_cec_fixed_registers)); |
| 93 | if (ret) |
| 94 | goto err; |
| 95 | |
| 96 | return 0; |
| 97 | err: |
| 98 | adv7533_uninit_cec(adv); |
| 99 | return ret; |
| 100 | } |