Umang Agrawal | d13b5fe | 2017-12-19 12:09:31 +0530 | [diff] [blame] | 1 | /* Copyright (c) 2018, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are |
| 5 | * met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer in the documentation and/or other materials provided |
| 11 | * with the distribution. |
| 12 | * * Neither the name of The Linux Foundation nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 23 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 25 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 26 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <bits.h> |
| 30 | #include <debug.h> |
| 31 | #include <reg.h> |
| 32 | |
| 33 | #define QPNP_LCDB_BASE 0x3ec00 |
| 34 | #define QPNP_LCDB_BST_OUTPUT_VOLTAGE_REG 0x41 |
| 35 | #define QPNP_LCDB_LDO_OUTPUT_VOLTAGE_REG 0x71 |
| 36 | #define QPNP_LCDB_NCP_OUTPUT_VOLTAGE_REG 0x81 |
| 37 | #define QPNP_LCDB_ENABLE_CTL_REG 0x46 |
| 38 | #define QPNP_LCDB_PWRUP_PWRDN_CTL_REG 0x66 |
| 39 | #define QPNP_LCDB_MODULE_RDY_REG 0x45 |
| 40 | |
| 41 | #define QPNP_LCDB_BST_OUTPUT_VOLTAGE_MASK 0x3F |
| 42 | #define QPNP_LCDB_LDO_OUTPUT_VOLTAGE_MASK 0x1F |
| 43 | #define QPNP_LCDB_NCP_OUTPUT_VOLTAGE_MASK 0x1F |
| 44 | #define QPNP_LCDB_ENABLE_CTL_MASK 0x80 |
| 45 | #define QPNP_LCDB_PWRUP_DLY_MASK 0x0C |
| 46 | #define QPNP_LCDB_PWRDN_DLY_MASK 0x03 |
| 47 | #define QPNP_LCDB_MODULE_RDY_MASK 0x80 |
| 48 | |
| 49 | #define LCDB_LDO_INIT_VOLTAGE_UV 4000000 |
Umang Agrawal | 2e447c8 | 2018-09-11 15:00:47 +0530 | [diff] [blame^] | 50 | #define LCDB_LDO_MAX_VOLTAGE_UV 6000000 |
Umang Agrawal | d13b5fe | 2017-12-19 12:09:31 +0530 | [diff] [blame] | 51 | #define LCDB_NCP_INIT_VOLTAGE_UV 4000000 |
Umang Agrawal | 2e447c8 | 2018-09-11 15:00:47 +0530 | [diff] [blame^] | 52 | #define LCDB_NCP_MAX_VOLTAGE_UV 6000000 |
Umang Agrawal | d13b5fe | 2017-12-19 12:09:31 +0530 | [diff] [blame] | 53 | #define LCDB_BOOST_INIT_VOLTAGE_UV 4700000 |
| 54 | #define LDO_VREG_STEP_SIZE_UV 50000 |
| 55 | #define NCP_VREG_STEP_SIZE_UV 50000 |
| 56 | #define BST_VREG_STEP_SIZE_UV 25000 |
| 57 | #define LCDB_BOOST_HEADROOM_VOLT_UV 150000 |
| 58 | #define QPNP_LCDB_PWRUP_DLY_MAX_MS 3 |
| 59 | #define QPNP_LCDB_PWRDN_DLY_MAX_MS 3 |
| 60 | #define LCDB_MODULE_RDY BIT(7) |
| 61 | |
| 62 | #define LCDB_ENABLE_SHIFT 7 |
| 63 | #define LCDB_PWRUP_DLY_SHIFT 2 |
Umang Agrawal | 2e447c8 | 2018-09-11 15:00:47 +0530 | [diff] [blame^] | 64 | #define LCDB_STEP_UV 500000 |
| 65 | |
| 66 | #define min(a, b) (a) < (b) ? a : b |
Umang Agrawal | d13b5fe | 2017-12-19 12:09:31 +0530 | [diff] [blame] | 67 | |
| 68 | struct qpnp_lcdb { |
| 69 | uint32_t lcdb_base; |
| 70 | uint16_t lcdb_pwrup_dly_ms; |
| 71 | uint16_t lcdb_pwrdn_dly_ms; |
| 72 | uint32_t ldo_min_volt; |
| 73 | uint32_t ldo_max_volt; |
| 74 | uint32_t ldo_init_volt; |
| 75 | uint32_t ncp_min_volt; |
| 76 | uint32_t ncp_max_volt; |
| 77 | uint32_t ncp_init_volt; |
| 78 | uint32_t bst_init_volt; |
| 79 | }; |
| 80 | |
| 81 | /* LCDB Init */ |
| 82 | int qpnp_lcdb_init(struct qpnp_wled_config_data *config); |
| 83 | |
| 84 | /* LCDB Enable */ |
| 85 | int qpnp_lcdb_enable(bool enable); |