Vishnuvardhan Prodduturi | af59b91 | 2015-10-20 21:14:27 +0530 | [diff] [blame] | 1 | /* Copyright (c) 2014-2016, The Linux Foundation. All rights reserved. |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 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, Inc. 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 <stdio.h> |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 30 | #include <string.h> |
| 31 | #include <stdlib.h> |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 32 | #include <err.h> |
| 33 | #include <qpnp_wled.h> |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 34 | #include <pm8x41_wled.h> |
| 35 | #include <qtimer.h> |
Parth Dixit | 550ddf3 | 2016-11-28 17:00:29 +0530 | [diff] [blame^] | 36 | #include <target.h> |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 37 | |
Parth Dixit | e46b1a2 | 2016-06-06 19:16:20 +0530 | [diff] [blame] | 38 | static int qpnp_wled_avdd_target_voltages[NUM_SUPPORTED_AVDD_VOLTAGES] = { |
| 39 | 7900, 7600, 7300, 6400, 6100, 5800, |
| 40 | }; |
| 41 | |
| 42 | static uint8_t qpnp_wled_ovp_reg_settings[NUM_SUPPORTED_AVDD_VOLTAGES] = { |
| 43 | 0x0, 0x0, 0x1, 0x2, 0x2, 0x3, |
| 44 | }; |
| 45 | |
| 46 | static int qpnp_wled_avdd_trim_adjustments[NUM_SUPPORTED_AVDD_VOLTAGES] = { |
| 47 | 3, 0, -2, 7, 3, 3, |
| 48 | }; |
| 49 | |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 50 | static int fls(uint16_t n) |
| 51 | { |
| 52 | int i = 0; |
| 53 | for (; n; n >>= 1, i++); |
| 54 | return i; |
| 55 | } |
| 56 | |
| 57 | static struct qpnp_wled *gwled; |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 58 | static int qpnp_labibb_regulator_set_voltage(struct qpnp_wled *wled); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 59 | |
| 60 | static int qpnp_wled_sec_access(struct qpnp_wled *wled, uint16_t base_addr) |
| 61 | { |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 62 | uint8_t reg = QPNP_WLED_SEC_UNLOCK; |
| 63 | |
| 64 | pm8x41_wled_reg_write(QPNP_WLED_SEC_ACCESS_REG(base_addr), reg); |
| 65 | |
| 66 | return 0; |
| 67 | } |
| 68 | |
| 69 | /* set wled to a level of brightness */ |
| 70 | static int qpnp_wled_set_level(struct qpnp_wled *wled, int level) |
| 71 | { |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 72 | int i; |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 73 | uint8_t reg; |
| 74 | |
| 75 | /* set brightness registers */ |
| 76 | for (i = 0; i < wled->num_strings; i++) { |
| 77 | reg = level & QPNP_WLED_BRIGHT_LSB_MASK; |
| 78 | pm8x41_wled_reg_write(QPNP_WLED_BRIGHT_LSB_REG(wled->sink_base, |
| 79 | wled->strings[i]), reg); |
| 80 | |
| 81 | reg = level >> QPNP_WLED_BRIGHT_MSB_SHIFT; |
| 82 | reg = reg & QPNP_WLED_BRIGHT_MSB_MASK; |
| 83 | pm8x41_wled_reg_write(QPNP_WLED_BRIGHT_MSB_REG(wled->sink_base, |
| 84 | wled->strings[i]), reg); |
| 85 | } |
| 86 | |
| 87 | /* sync */ |
| 88 | reg = QPNP_WLED_SYNC; |
| 89 | pm8x41_wled_reg_write(QPNP_WLED_SYNC_REG(wled->sink_base), reg); |
| 90 | |
| 91 | reg = QPNP_WLED_SYNC_RESET; |
| 92 | pm8x41_wled_reg_write(QPNP_WLED_SYNC_REG(wled->sink_base), reg); |
| 93 | |
| 94 | return 0; |
| 95 | } |
| 96 | |
| 97 | static int qpnp_wled_enable(struct qpnp_wled *wled, |
| 98 | uint16_t base_addr, bool state) |
| 99 | { |
| 100 | uint8_t reg; |
| 101 | |
| 102 | reg = pm8x41_wled_reg_read( |
| 103 | QPNP_WLED_MODULE_EN_REG(base_addr)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 104 | reg &= QPNP_WLED_MODULE_EN_MASK; |
| 105 | reg |= (state << QPNP_WLED_MODULE_EN_SHIFT); |
| 106 | pm8x41_wled_reg_write(QPNP_WLED_MODULE_EN_REG(base_addr), reg); |
| 107 | |
| 108 | return 0; |
| 109 | } |
| 110 | |
Vishnuvardhan Prodduturi | af59b91 | 2015-10-20 21:14:27 +0530 | [diff] [blame] | 111 | static int qpnp_wled_ibb_swire_rdy(struct qpnp_wled *wled, |
| 112 | uint16_t base_addr, bool state) |
| 113 | { |
| 114 | uint8_t reg; |
| 115 | |
| 116 | reg = pm8x41_wled_reg_read( |
| 117 | QPNP_WLED_MODULE_EN_REG(base_addr)); |
| 118 | /* Do not enable IBB module when SWIRE ready is set */ |
| 119 | reg &= ~(QPNP_IBB_SWIRE_RDY_MASK | QPNP_IBB_MODULE_EN_MASK); |
| 120 | reg |= (state << QPNP_IBB_SWIRE_RDY_SHIFT); |
| 121 | pm8x41_wled_reg_write(QPNP_WLED_MODULE_EN_REG(base_addr), reg); |
| 122 | |
| 123 | return 0; |
| 124 | } |
| 125 | |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 126 | int qpnp_ibb_enable(bool state) |
| 127 | { |
| 128 | int rc = 0; |
| 129 | uint8_t reg; |
| 130 | |
| 131 | if (!gwled) { |
| 132 | dprintf(CRITICAL, "%s: wled is not initialized yet\n", __func__); |
| 133 | return ERROR; |
| 134 | } |
| 135 | |
| 136 | /* enable lab */ |
| 137 | if (gwled->ibb_bias_active) { |
| 138 | rc = qpnp_wled_enable(gwled, gwled->lab_base, state); |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 139 | udelay(QPNP_WLED_LAB_START_DLY_US + 1); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 140 | if (rc < 0) |
| 141 | return rc; |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 142 | } else { |
| 143 | reg = pm8x41_wled_reg_read(QPNP_WLED_LAB_IBB_RDY_REG(gwled->lab_base)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 144 | |
| 145 | reg &= QPNP_WLED_MODULE_EN_MASK; |
| 146 | reg |= (state << QPNP_WLED_MODULE_EN_SHIFT); |
| 147 | pm8x41_wled_reg_write(QPNP_WLED_LAB_IBB_RDY_REG(gwled->lab_base), reg); |
| 148 | } |
| 149 | |
Vishnuvardhan Prodduturi | af59b91 | 2015-10-20 21:14:27 +0530 | [diff] [blame] | 150 | if (gwled->disp_type_amoled && gwled->lab_ibb_swire_control) |
| 151 | rc = qpnp_wled_ibb_swire_rdy(gwled, gwled->ibb_base, state); |
| 152 | else |
| 153 | rc = qpnp_wled_enable(gwled, gwled->ibb_base, state); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 154 | |
| 155 | return rc; |
| 156 | } |
| 157 | |
| 158 | /* enable / disable wled brightness */ |
| 159 | void qpnp_wled_enable_backlight(int enable) |
| 160 | { |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 161 | int rc; |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 162 | |
| 163 | if (!gwled) { |
| 164 | dprintf(CRITICAL, "%s: wled is not initialized yet\n", __func__); |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 165 | return; |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 166 | } |
| 167 | |
| 168 | if (enable) { |
| 169 | rc = qpnp_wled_set_level(gwled, QPNP_WLED_MAX_BR_LEVEL); |
| 170 | if (rc) { |
| 171 | dprintf(CRITICAL,"wled set level failed\n"); |
| 172 | return; |
| 173 | } |
| 174 | } |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 175 | |
Vishnuvardhan Prodduturi | af59b91 | 2015-10-20 21:14:27 +0530 | [diff] [blame] | 176 | if (!gwled->disp_type_amoled || !gwled->wled_avdd_control) { |
| 177 | rc = qpnp_wled_enable(gwled, gwled->ctrl_base, enable); |
| 178 | if (rc) { |
| 179 | dprintf(CRITICAL, "wled %sable failed\n", |
| 180 | enable ? "en" : "dis"); |
| 181 | return; |
| 182 | } |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 183 | } |
| 184 | |
| 185 | } |
| 186 | |
| 187 | static int qpnp_wled_set_display_type(struct qpnp_wled *wled, uint16_t base_addr) |
| 188 | { |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 189 | uint8_t reg = 0; |
Parth Dixit | b1461bf | 2015-06-24 20:51:08 +0530 | [diff] [blame] | 190 | int rc; |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 191 | |
| 192 | /* display type */ |
| 193 | reg = pm8x41_wled_reg_read(QPNP_WLED_DISP_SEL_REG(base_addr)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 194 | |
| 195 | reg &= QPNP_WLED_DISP_SEL_MASK; |
| 196 | reg |= (wled->disp_type_amoled << QPNP_WLED_DISP_SEL_SHIFT); |
Parth Dixit | b1461bf | 2015-06-24 20:51:08 +0530 | [diff] [blame] | 197 | |
| 198 | rc = qpnp_wled_sec_access(wled, base_addr); |
| 199 | if (rc) |
| 200 | return rc; |
| 201 | |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 202 | pm8x41_wled_reg_write(QPNP_WLED_DISP_SEL_REG(base_addr), reg); |
| 203 | |
| 204 | return 0; |
| 205 | } |
| 206 | |
| 207 | static int qpnp_wled_module_ready(struct qpnp_wled *wled, uint16_t base_addr, bool state) |
| 208 | { |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 209 | uint8_t reg; |
| 210 | |
| 211 | reg = pm8x41_wled_reg_read( |
| 212 | QPNP_WLED_MODULE_RDY_REG(base_addr)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 213 | reg &= QPNP_WLED_MODULE_RDY_MASK; |
| 214 | reg |= (state << QPNP_WLED_MODULE_RDY_SHIFT); |
| 215 | pm8x41_wled_reg_write(QPNP_WLED_MODULE_RDY_REG(base_addr), reg); |
| 216 | |
| 217 | return 0; |
| 218 | } |
| 219 | |
| 220 | /* Configure WLED registers */ |
| 221 | static int qpnp_wled_config(struct qpnp_wled *wled) |
| 222 | { |
| 223 | int rc, i, temp; |
| 224 | uint8_t reg = 0; |
| 225 | |
| 226 | /* Configure display type */ |
| 227 | rc = qpnp_wled_set_display_type(wled, wled->ctrl_base); |
| 228 | if (rc < 0) |
| 229 | return rc; |
| 230 | |
Vishnuvardhan Prodduturi | af59b91 | 2015-10-20 21:14:27 +0530 | [diff] [blame] | 231 | /* Recommended WLED MDOS settings for AMOLED */ |
| 232 | if (wled->disp_type_amoled) { |
| 233 | pm8x41_wled_reg_write(QPNP_WLED_VLOOP_COMP_RES(wled->ctrl_base), |
| 234 | 0x8F); |
| 235 | pm8x41_wled_reg_write(QPNP_WLED_VLOOP_COMP_GM(wled->ctrl_base), |
| 236 | 0x81); |
| 237 | pm8x41_wled_reg_write(QPNP_WLED_PSM_CTRL(wled->ctrl_base), |
| 238 | 0x83); |
| 239 | |
| 240 | rc = qpnp_wled_sec_access(wled, wled->ctrl_base); |
| 241 | if (rc) |
| 242 | return rc; |
| 243 | pm8x41_wled_reg_write(QPNP_WLED_TEST4(wled->ctrl_base), 0x13); |
| 244 | } |
| 245 | |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 246 | /* Configure the FEEDBACK OUTPUT register */ |
| 247 | reg = pm8x41_wled_reg_read( |
| 248 | QPNP_WLED_FDBK_OP_REG(wled->ctrl_base)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 249 | reg &= QPNP_WLED_FDBK_OP_MASK; |
| 250 | reg |= wled->fdbk_op; |
| 251 | pm8x41_wled_reg_write(QPNP_WLED_FDBK_OP_REG(wled->ctrl_base), reg); |
| 252 | |
| 253 | /* Configure the VREF register */ |
| 254 | if (wled->vref_mv < QPNP_WLED_VREF_MIN_MV) |
| 255 | wled->vref_mv = QPNP_WLED_VREF_MIN_MV; |
| 256 | else if (wled->vref_mv > QPNP_WLED_VREF_MAX_MV) |
| 257 | wled->vref_mv = QPNP_WLED_VREF_MAX_MV; |
| 258 | |
| 259 | reg = pm8x41_wled_reg_read( |
| 260 | QPNP_WLED_VREF_REG(wled->ctrl_base)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 261 | reg &= QPNP_WLED_VREF_MASK; |
| 262 | temp = wled->vref_mv - QPNP_WLED_VREF_MIN_MV; |
| 263 | reg |= (temp / QPNP_WLED_VREF_STEP_MV); |
| 264 | pm8x41_wled_reg_write(QPNP_WLED_VREF_REG(wled->ctrl_base), reg); |
| 265 | |
| 266 | /* Configure the ILIM register */ |
| 267 | if (wled->ilim_ma < QPNP_WLED_ILIM_MIN_MA) |
| 268 | wled->ilim_ma = QPNP_WLED_ILIM_MIN_MA; |
| 269 | else if (wled->ilim_ma > QPNP_WLED_ILIM_MAX_MA) |
| 270 | wled->ilim_ma = QPNP_WLED_ILIM_MAX_MA; |
| 271 | |
| 272 | reg = pm8x41_wled_reg_read( |
| 273 | QPNP_WLED_ILIM_REG(wled->ctrl_base)); |
Alex Sarraf | 9bd81b9 | 2015-05-20 15:59:32 -0700 | [diff] [blame] | 274 | temp = (wled->ilim_ma / QPNP_WLED_ILIM_STEP_MA); |
| 275 | if (temp != (reg & ~QPNP_WLED_ILIM_MASK)) { |
| 276 | reg &= QPNP_WLED_ILIM_MASK; |
| 277 | reg |= temp; |
| 278 | reg |= QPNP_WLED_ILIM_OVERWRITE; |
| 279 | pm8x41_wled_reg_write(QPNP_WLED_ILIM_REG(wled->ctrl_base), reg); |
| 280 | } |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 281 | |
| 282 | /* Configure the MAX BOOST DUTY register */ |
| 283 | if (wled->boost_duty_ns < QPNP_WLED_BOOST_DUTY_MIN_NS) |
| 284 | wled->boost_duty_ns = QPNP_WLED_BOOST_DUTY_MIN_NS; |
| 285 | else if (wled->boost_duty_ns > QPNP_WLED_BOOST_DUTY_MAX_NS) |
| 286 | wled->boost_duty_ns = QPNP_WLED_BOOST_DUTY_MAX_NS; |
| 287 | |
| 288 | reg = pm8x41_wled_reg_read( |
| 289 | QPNP_WLED_BOOST_DUTY_REG(wled->ctrl_base)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 290 | reg &= QPNP_WLED_BOOST_DUTY_MASK; |
| 291 | reg |= (wled->boost_duty_ns / QPNP_WLED_BOOST_DUTY_STEP_NS); |
| 292 | pm8x41_wled_reg_write(QPNP_WLED_BOOST_DUTY_REG(wled->ctrl_base), reg); |
| 293 | |
| 294 | /* Configure the SWITCHING FREQ register */ |
| 295 | if (wled->switch_freq_khz == QPNP_WLED_SWITCH_FREQ_1600_KHZ) |
| 296 | temp = QPNP_WLED_SWITCH_FREQ_1600_KHZ_CODE; |
| 297 | else |
| 298 | temp = QPNP_WLED_SWITCH_FREQ_800_KHZ_CODE; |
| 299 | |
| 300 | reg = pm8x41_wled_reg_read( |
| 301 | QPNP_WLED_SWITCH_FREQ_REG(wled->ctrl_base)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 302 | reg &= QPNP_WLED_SWITCH_FREQ_MASK; |
| 303 | reg |= temp; |
| 304 | pm8x41_wled_reg_write(QPNP_WLED_SWITCH_FREQ_REG(wled->ctrl_base), reg); |
| 305 | |
| 306 | /* Configure the OVP register */ |
| 307 | if (wled->ovp_mv <= QPNP_WLED_OVP_17800_MV) { |
| 308 | wled->ovp_mv = QPNP_WLED_OVP_17800_MV; |
| 309 | temp = 3; |
| 310 | } else if (wled->ovp_mv <= QPNP_WLED_OVP_19400_MV) { |
| 311 | wled->ovp_mv = QPNP_WLED_OVP_19400_MV; |
| 312 | temp = 2; |
| 313 | } else if (wled->ovp_mv <= QPNP_WLED_OVP_29500_MV) { |
| 314 | wled->ovp_mv = QPNP_WLED_OVP_29500_MV; |
| 315 | temp = 1; |
| 316 | } else { |
| 317 | wled->ovp_mv = QPNP_WLED_OVP_31000_MV; |
| 318 | temp = 0; |
| 319 | } |
| 320 | |
| 321 | reg = pm8x41_wled_reg_read( |
| 322 | QPNP_WLED_OVP_REG(wled->ctrl_base)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 323 | reg &= QPNP_WLED_OVP_MASK; |
| 324 | reg |= temp; |
| 325 | pm8x41_wled_reg_write(QPNP_WLED_OVP_REG(wled->ctrl_base), reg); |
| 326 | |
Parth Dixit | e46b1a2 | 2016-06-06 19:16:20 +0530 | [diff] [blame] | 327 | if (wled->disp_type_amoled) { |
| 328 | for (i = 0; i < NUM_SUPPORTED_AVDD_VOLTAGES; i++) { |
| 329 | if (QPNP_WLED_AVDD_DEFAULT_VOLTAGE_MV == qpnp_wled_avdd_target_voltages[i]) |
| 330 | break; |
| 331 | } |
| 332 | if (i == NUM_SUPPORTED_AVDD_VOLTAGES) |
| 333 | { |
| 334 | dprintf(CRITICAL, "Invalid avdd target voltage specified \n"); |
| 335 | return ERR_NOT_VALID; |
| 336 | } |
| 337 | /* Update WLED_OVP register based on desired target voltage */ |
| 338 | reg = qpnp_wled_ovp_reg_settings[i]; |
| 339 | pm8x41_wled_reg_write(QPNP_WLED_OVP_REG(wled->ctrl_base), reg); |
| 340 | /* Update WLED_TRIM register based on desired target voltage */ |
| 341 | reg = pm8x41_wled_reg_read( |
| 342 | QPNP_WLED_REF_7P7_TRIM_REG(wled->ctrl_base)); |
| 343 | reg += qpnp_wled_avdd_trim_adjustments[i]; |
| 344 | if ((int8_t)reg < QPNP_WLED_AVDD_MIN_TRIM_VALUE) |
| 345 | reg = QPNP_WLED_AVDD_MIN_TRIM_VALUE; |
| 346 | else if((int8_t)reg > QPNP_WLED_AVDD_MAX_TRIM_VALUE) |
| 347 | reg = QPNP_WLED_AVDD_MAX_TRIM_VALUE; |
| 348 | |
| 349 | rc = qpnp_wled_sec_access(wled, wled->ctrl_base); |
| 350 | if (rc) |
| 351 | return rc; |
| 352 | |
| 353 | temp = pm8x41_wled_reg_read( |
| 354 | QPNP_WLED_REF_7P7_TRIM_REG(wled->ctrl_base)); |
| 355 | temp &= ~QPNP_WLED_7P7_TRIM_MASK; |
| 356 | temp |= (reg & QPNP_WLED_7P7_TRIM_MASK); |
| 357 | pm8x41_wled_reg_write(QPNP_WLED_REF_7P7_TRIM_REG(wled->ctrl_base), temp); |
| 358 | /* Write to spare to avoid reconfiguration in HLOS */ |
| 359 | reg = pm8x41_wled_reg_read( |
| 360 | QPNP_WLED_CTRL_SPARE_REG(wled->ctrl_base)); |
| 361 | reg |= QPNP_WLED_AVDD_SET_BIT; |
| 362 | pm8x41_wled_reg_write(QPNP_WLED_CTRL_SPARE_REG(wled->ctrl_base), reg); |
| 363 | } |
| 364 | |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 365 | /* Configure the MODULATION register */ |
| 366 | if (wled->mod_freq_khz <= QPNP_WLED_MOD_FREQ_1200_KHZ) { |
| 367 | wled->mod_freq_khz = QPNP_WLED_MOD_FREQ_1200_KHZ; |
| 368 | temp = 3; |
| 369 | } else if (wled->mod_freq_khz <= QPNP_WLED_MOD_FREQ_2400_KHZ) { |
| 370 | wled->mod_freq_khz = QPNP_WLED_MOD_FREQ_2400_KHZ; |
| 371 | temp = 2; |
| 372 | } else if (wled->mod_freq_khz <= QPNP_WLED_MOD_FREQ_9600_KHZ) { |
| 373 | wled->mod_freq_khz = QPNP_WLED_MOD_FREQ_9600_KHZ; |
| 374 | temp = 1; |
| 375 | } else { |
| 376 | wled->mod_freq_khz = QPNP_WLED_MOD_FREQ_19200_KHZ; |
| 377 | temp = 0; |
| 378 | } |
| 379 | reg = pm8x41_wled_reg_read(QPNP_WLED_MOD_REG(wled->sink_base)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 380 | |
| 381 | reg &= QPNP_WLED_MOD_FREQ_MASK; |
| 382 | reg |= (temp << QPNP_WLED_MOD_FREQ_SHIFT); |
| 383 | |
| 384 | reg &= QPNP_WLED_PHASE_STAG_MASK; |
| 385 | reg |= (wled->en_phase_stag << QPNP_WLED_PHASE_STAG_SHIFT); |
| 386 | |
| 387 | reg &= QPNP_WLED_DIM_RES_MASK; |
| 388 | reg |= (wled->en_9b_dim_res << QPNP_WLED_DIM_RES_SHIFT); |
| 389 | |
| 390 | if (wled->dim_mode == QPNP_WLED_DIM_HYBRID) { |
| 391 | reg &= QPNP_WLED_DIM_HYB_MASK; |
| 392 | reg |= (1 << QPNP_WLED_DIM_HYB_SHIFT); |
| 393 | } else { |
| 394 | reg &= QPNP_WLED_DIM_HYB_MASK; |
| 395 | reg |= (0 << QPNP_WLED_DIM_HYB_SHIFT); |
| 396 | reg &= QPNP_WLED_DIM_ANA_MASK; |
| 397 | reg |= wled->dim_mode; |
| 398 | } |
| 399 | |
| 400 | pm8x41_wled_reg_write(QPNP_WLED_MOD_REG(wled->sink_base), reg); |
| 401 | |
| 402 | /* Configure the HYBRID THRESHOLD register */ |
| 403 | if (wled->hyb_thres < QPNP_WLED_HYB_THRES_MIN) |
| 404 | wled->hyb_thres = QPNP_WLED_HYB_THRES_MIN; |
| 405 | else if (wled->hyb_thres > QPNP_WLED_HYB_THRES_MAX) |
| 406 | wled->hyb_thres = QPNP_WLED_HYB_THRES_MAX; |
| 407 | |
| 408 | reg = pm8x41_wled_reg_read( |
| 409 | QPNP_WLED_HYB_THRES_REG(wled->sink_base)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 410 | |
| 411 | reg &= QPNP_WLED_HYB_THRES_MASK; |
| 412 | temp = fls(wled->hyb_thres / QPNP_WLED_HYB_THRES_MIN) - 1; |
| 413 | reg |= temp; |
| 414 | pm8x41_wled_reg_write(QPNP_WLED_HYB_THRES_REG(wled->sink_base), reg); |
| 415 | |
| 416 | for (i = 0; i < wled->num_strings; i++) { |
| 417 | if (wled->strings[i] >= QPNP_WLED_MAX_STRINGS) { |
| 418 | dprintf(CRITICAL,"Invalid string number\n"); |
| 419 | return ERR_NOT_VALID; |
| 420 | } |
| 421 | |
| 422 | /* MODULATOR */ |
| 423 | reg = pm8x41_wled_reg_read( |
| 424 | QPNP_WLED_MOD_EN_REG(wled->sink_base, |
| 425 | wled->strings[i])); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 426 | reg &= QPNP_WLED_MOD_EN_MASK; |
| 427 | reg |= (QPNP_WLED_MOD_EN << QPNP_WLED_MOD_EN_SHFT); |
| 428 | pm8x41_wled_reg_write(QPNP_WLED_MOD_EN_REG(wled->sink_base, |
| 429 | wled->strings[i]), reg); |
| 430 | |
| 431 | /* SYNC DELAY */ |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 432 | if (wled->sync_dly_us > QPNP_WLED_SYNC_DLY_MAX_US) |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 433 | wled->sync_dly_us = QPNP_WLED_SYNC_DLY_MAX_US; |
| 434 | |
| 435 | reg = pm8x41_wled_reg_read( |
| 436 | QPNP_WLED_SYNC_DLY_REG(wled->sink_base, |
| 437 | wled->strings[i])); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 438 | reg &= QPNP_WLED_SYNC_DLY_MASK; |
| 439 | temp = wled->sync_dly_us / QPNP_WLED_SYNC_DLY_STEP_US; |
| 440 | reg |= temp; |
| 441 | pm8x41_wled_reg_write(QPNP_WLED_SYNC_DLY_REG(wled->sink_base, |
| 442 | wled->strings[i]), reg); |
| 443 | |
| 444 | /* FULL SCALE CURRENT */ |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 445 | if (wled->fs_curr_ua > QPNP_WLED_FS_CURR_MAX_UA) |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 446 | wled->fs_curr_ua = QPNP_WLED_FS_CURR_MAX_UA; |
| 447 | |
| 448 | reg = pm8x41_wled_reg_read( |
| 449 | QPNP_WLED_FS_CURR_REG(wled->sink_base, |
| 450 | wled->strings[i])); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 451 | reg &= QPNP_WLED_FS_CURR_MASK; |
| 452 | temp = wled->fs_curr_ua / QPNP_WLED_FS_CURR_STEP_UA; |
| 453 | reg |= temp; |
| 454 | pm8x41_wled_reg_write(QPNP_WLED_FS_CURR_REG(wled->sink_base, |
| 455 | wled->strings[i]), reg); |
| 456 | |
| 457 | /* CABC */ |
| 458 | reg = pm8x41_wled_reg_read( |
| 459 | QPNP_WLED_CABC_REG(wled->sink_base, |
| 460 | wled->strings[i])); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 461 | reg &= QPNP_WLED_CABC_MASK; |
| 462 | reg |= (wled->en_cabc << QPNP_WLED_CABC_SHIFT); |
| 463 | pm8x41_wled_reg_write(QPNP_WLED_CABC_REG(wled->sink_base, |
| 464 | wled->strings[i]), reg); |
| 465 | |
| 466 | /* Enable CURRENT SINK */ |
| 467 | reg = pm8x41_wled_reg_read( |
| 468 | QPNP_WLED_CURR_SINK_REG(wled->sink_base)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 469 | temp = wled->strings[i] + QPNP_WLED_CURR_SINK_SHIFT; |
| 470 | reg |= (1 << temp); |
| 471 | pm8x41_wled_reg_write(QPNP_WLED_CURR_SINK_REG(wled->sink_base), reg); |
| 472 | } |
| 473 | |
| 474 | /* LAB fast precharge */ |
| 475 | reg = pm8x41_wled_reg_read( |
| 476 | QPNP_WLED_LAB_FAST_PC_REG(wled->lab_base)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 477 | reg &= QPNP_WLED_LAB_FAST_PC_MASK; |
| 478 | reg |= (wled->lab_fast_precharge << QPNP_WLED_LAB_FAST_PC_SHIFT); |
wufeng.jiang | b100848 | 2016-06-14 10:41:39 +0800 | [diff] [blame] | 479 | /* LAB max precharge time */ |
| 480 | reg &= QPNP_WLED_PRECHARGE_MASK; |
| 481 | reg |= (wled->lab_max_precharge_time); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 482 | pm8x41_wled_reg_write(QPNP_WLED_LAB_FAST_PC_REG(wled->lab_base), reg); |
| 483 | |
| 484 | /* Configure lab display type */ |
| 485 | rc = qpnp_wled_set_display_type(wled, wled->lab_base); |
| 486 | if (rc < 0) |
| 487 | return rc; |
| 488 | |
| 489 | /* make LAB module ready */ |
| 490 | rc = qpnp_wled_module_ready(wled, wled->lab_base, true); |
| 491 | if (rc < 0) |
| 492 | return rc; |
| 493 | |
Vishnuvardhan Prodduturi | af59b91 | 2015-10-20 21:14:27 +0530 | [diff] [blame] | 494 | /* Disable LAB pulse skipping for AMOLED */ |
| 495 | if (wled->disp_type_amoled) |
| 496 | pm8x41_wled_reg_write(wled->lab_base + |
| 497 | QPNP_LABIBB_PS_CTL, 0x00); |
| 498 | |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 499 | /* IBB active bias */ |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 500 | if (wled->ibb_pwrup_dly_ms > QPNP_WLED_IBB_PWRUP_DLY_MAX_MS) |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 501 | wled->ibb_pwrup_dly_ms = QPNP_WLED_IBB_PWRUP_DLY_MAX_MS; |
| 502 | |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 503 | if (wled->ibb_pwrdn_dly_ms > QPNP_WLED_IBB_PWRDN_DLY_MAX_MS) |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 504 | wled->ibb_pwrdn_dly_ms = QPNP_WLED_IBB_PWRDN_DLY_MAX_MS; |
| 505 | |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 506 | reg = pm8x41_wled_reg_read( |
| 507 | QPNP_WLED_IBB_BIAS_REG(wled->ibb_base)); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 508 | |
| 509 | reg &= QPNP_WLED_IBB_BIAS_MASK; |
| 510 | reg |= (!wled->ibb_bias_active << QPNP_WLED_IBB_BIAS_SHIFT); |
| 511 | |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 512 | temp = wled->ibb_pwrup_dly_ms; |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 513 | reg &= QPNP_WLED_IBB_PWRUP_DLY_MASK; |
| 514 | reg |= (temp << QPNP_WLED_IBB_PWRUP_DLY_SHIFT); |
Channagoud Kadabi | f5f0ded | 2015-02-25 13:42:18 -0800 | [diff] [blame] | 515 | /* Power down delay bits could already be set, clear them before |
| 516 | * or'ing new values |
| 517 | */ |
| 518 | reg &= ~(PWRDN_DLY2_MASK); |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 519 | reg |= wled->ibb_pwrdn_dly_ms; |
| 520 | reg |= (wled->ibb_discharge_en << 2); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 521 | |
| 522 | rc = qpnp_wled_sec_access(wled, wled->ibb_base); |
| 523 | if (rc) |
| 524 | return rc; |
| 525 | |
| 526 | pm8x41_wled_reg_write(QPNP_WLED_IBB_BIAS_REG(wled->ibb_base), reg); |
| 527 | |
| 528 | /* Configure ibb display type */ |
| 529 | rc = qpnp_wled_set_display_type(wled, wled->ibb_base); |
| 530 | if (rc < 0) |
| 531 | return rc; |
| 532 | |
| 533 | /* make IBB module ready */ |
| 534 | rc = qpnp_wled_module_ready(wled, wled->ibb_base, true); |
| 535 | if (rc < 0) |
| 536 | return rc; |
| 537 | |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 538 | rc = qpnp_labibb_regulator_set_voltage(wled); |
| 539 | if (rc < 0) |
| 540 | return rc; |
| 541 | |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 542 | return 0; |
| 543 | } |
| 544 | |
| 545 | /* Setup wled default parameters */ |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 546 | static int qpnp_wled_setup(struct qpnp_wled *wled, struct qpnp_wled_config_data *config) |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 547 | { |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 548 | int i; |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 549 | |
| 550 | wled->sink_base = QPNP_WLED_SINK_BASE; |
| 551 | wled->ctrl_base = QPNP_WLED_CTRL_BASE; |
| 552 | wled->ibb_base = QPNP_WLED_IBB_BASE; |
| 553 | wled->lab_base = QPNP_WLED_LAB_BASE; |
| 554 | wled->fdbk_op = QPNP_WLED_FDBK_AUTO; |
| 555 | wled->vref_mv = QPNP_WLED_DFLT_VREF_MV; |
| 556 | wled->switch_freq_khz = QPNP_WLED_SWITCH_FREQ_800_KHZ; |
| 557 | wled->ovp_mv = QPNP_WLED_OVP_29500_MV; |
| 558 | wled->ilim_ma = QPNP_WLED_DFLT_ILIM_MA; |
| 559 | wled->boost_duty_ns = QPNP_WLED_BOOST_DUTY_MIN_NS; |
| 560 | wled->mod_freq_khz = QPNP_WLED_MOD_FREQ_19200_KHZ; |
| 561 | wled->dim_mode = QPNP_WLED_DIM_HYBRID; |
| 562 | wled->dim_shape = QPNP_WLED_DIM_SHAPE_LINEAR; |
| 563 | |
| 564 | if (wled->dim_mode == QPNP_WLED_DIM_HYBRID) { |
| 565 | wled->hyb_thres = QPNP_WLED_DFLT_HYB_THRES; |
| 566 | } |
| 567 | |
| 568 | wled->sync_dly_us = 800; |
| 569 | wled->fs_curr_ua = 16000; |
| 570 | wled->en_9b_dim_res = 0; |
| 571 | wled->en_phase_stag = true; |
| 572 | wled->en_cabc = 0; |
| 573 | |
| 574 | wled->num_strings = QPNP_WLED_MAX_STRINGS; |
| 575 | for (i = 0; i < wled->num_strings; i++) |
| 576 | wled->strings[i] = i; |
| 577 | |
| 578 | wled->ibb_bias_active = false; |
Wufeng | 7bae3c9 | 2016-04-27 13:02:15 +0800 | [diff] [blame] | 579 | wled->lab_fast_precharge = false; |
wufeng.jiang | b100848 | 2016-06-14 10:41:39 +0800 | [diff] [blame] | 580 | wled->lab_max_precharge_time = QPNP_WLED_PRECHARGE_US500; |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 581 | wled->ibb_pwrup_dly_ms = config->pwr_up_delay; |
| 582 | wled->ibb_pwrdn_dly_ms = config->pwr_down_delay; |
| 583 | wled->ibb_discharge_en = config->ibb_discharge_en; |
| 584 | wled->disp_type_amoled = config->display_type; |
| 585 | wled->lab_min_volt = config->lab_min_volt; |
| 586 | wled->lab_max_volt = config->lab_max_volt; |
| 587 | wled->ibb_min_volt = config->ibb_min_volt; |
| 588 | wled->ibb_max_volt = config->ibb_max_volt; |
| 589 | wled->ibb_init_volt = config->ibb_init_volt; |
| 590 | wled->lab_init_volt = config->lab_init_volt; |
Vishnuvardhan Prodduturi | af59b91 | 2015-10-20 21:14:27 +0530 | [diff] [blame] | 591 | wled->lab_ibb_swire_control = config->lab_ibb_swire_control; |
| 592 | wled->wled_avdd_control = config->wled_avdd_control; |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 593 | |
| 594 | return 0; |
| 595 | } |
| 596 | |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 597 | int qpnp_wled_init(struct qpnp_wled_config_data *config) |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 598 | { |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 599 | int rc; |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 600 | struct qpnp_wled *wled; |
| 601 | |
Parth Dixit | 550ddf3 | 2016-11-28 17:00:29 +0530 | [diff] [blame^] | 602 | if(!target_is_pmi_enabled()) |
| 603 | return ERR_NOT_FOUND; |
| 604 | |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 605 | wled = malloc(sizeof(struct qpnp_wled)); |
| 606 | if (!wled) |
| 607 | return ERR_NO_MEMORY; |
| 608 | |
| 609 | memset(wled, 0, sizeof(struct qpnp_wled)); |
| 610 | |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 611 | rc = qpnp_wled_setup(wled, config); |
Aparna Mallavarapu | 083766b | 2014-07-21 21:04:48 +0530 | [diff] [blame] | 612 | if (rc) { |
| 613 | dprintf(CRITICAL, "Setting WLED parameters failed\n"); |
| 614 | return rc; |
| 615 | } |
| 616 | |
| 617 | rc = qpnp_wled_config(wled); |
| 618 | if (rc) { |
| 619 | dprintf(CRITICAL, "wled config failed\n"); |
| 620 | return rc; |
| 621 | } |
| 622 | |
| 623 | gwled = wled; |
| 624 | |
| 625 | return rc; |
| 626 | } |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 627 | |
| 628 | static int qpnp_labibb_regulator_set_voltage(struct qpnp_wled *wled) |
| 629 | { |
Veera Sundaram Sankaran | 4e23fab | 2014-12-09 13:54:32 -0800 | [diff] [blame] | 630 | int rc = -1; |
| 631 | uint32_t new_uV; |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 632 | uint8_t val, mask=0; |
| 633 | |
Vishnuvardhan Prodduturi | af59b91 | 2015-10-20 21:14:27 +0530 | [diff] [blame] | 634 | if (!wled->disp_type_amoled || !wled->lab_ibb_swire_control) { |
| 635 | if (wled->lab_min_volt < wled->lab_init_volt) { |
| 636 | dprintf(CRITICAL,"qpnp_lab_regulator_set_voltage failed, min_uV %d is less than init volt %d\n", |
| 637 | wled->lab_min_volt, wled->lab_init_volt); |
| 638 | return rc; |
| 639 | } |
| 640 | |
| 641 | val = (((wled->lab_min_volt - wled->lab_init_volt) + |
| 642 | (IBB_LAB_VREG_STEP_SIZE - 1)) / IBB_LAB_VREG_STEP_SIZE); |
| 643 | new_uV = val * IBB_LAB_VREG_STEP_SIZE + wled->lab_init_volt; |
| 644 | |
| 645 | if (new_uV > wled->lab_max_volt) { |
| 646 | dprintf(CRITICAL,"qpnp_ibb_regulator_set_voltage unable to set voltage (%d %d)\n", |
| 647 | wled->lab_min_volt, wled->lab_max_volt); |
| 648 | return rc; |
| 649 | } |
| 650 | val |= QPNP_LAB_OUTPUT_OVERRIDE_EN; |
| 651 | mask = pm8x41_wled_reg_read(wled->lab_base + |
| 652 | QPNP_LABIBB_OUTPUT_VOLTAGE); |
| 653 | mask &= ~(QPNP_LAB_SET_VOLTAGE_MASK |
| 654 | | QPNP_LAB_OUTPUT_OVERRIDE_EN); |
| 655 | mask |= val & (QPNP_LAB_SET_VOLTAGE_MASK |
| 656 | | QPNP_LAB_OUTPUT_OVERRIDE_EN); |
| 657 | |
| 658 | pm8x41_wled_reg_write(wled->lab_base + |
| 659 | QPNP_LABIBB_OUTPUT_VOLTAGE, mask); |
| 660 | udelay(2); |
| 661 | |
| 662 | /* |
| 663 | * IBB Set Voltage. |
| 664 | * For AMOLED panels, the IBB voltage needs to be |
| 665 | * controlled by panel. |
| 666 | */ |
| 667 | if (wled->ibb_min_volt < wled->ibb_init_volt) { |
| 668 | dprintf(CRITICAL, "qpnp_ibb_regulator_set_voltage failed, min_uV %d is less than init volt %d\n", |
| 669 | wled->ibb_min_volt, wled->ibb_init_volt); |
| 670 | return rc; |
| 671 | } |
| 672 | |
| 673 | val = (((wled->ibb_min_volt - wled->ibb_init_volt) + |
| 674 | (IBB_LAB_VREG_STEP_SIZE - 1)) / IBB_LAB_VREG_STEP_SIZE); |
| 675 | new_uV = val * IBB_LAB_VREG_STEP_SIZE + wled->ibb_init_volt; |
| 676 | if (new_uV > wled->ibb_max_volt) { |
| 677 | dprintf(CRITICAL, "qpnp_ibb_regulator_set_voltage unable to set voltage %d %d\n", |
| 678 | wled->ibb_min_volt, wled->ibb_max_volt); |
| 679 | return rc; |
| 680 | } |
| 681 | val |= QPNP_LAB_OUTPUT_OVERRIDE_EN; |
| 682 | mask = pm8x41_wled_reg_read(wled->ibb_base + |
| 683 | QPNP_LABIBB_OUTPUT_VOLTAGE); |
| 684 | udelay(2); |
| 685 | mask &= ~(QPNP_IBB_SET_VOLTAGE_MASK | |
| 686 | QPNP_LAB_OUTPUT_OVERRIDE_EN); |
| 687 | mask |= (val & (QPNP_IBB_SET_VOLTAGE_MASK | |
| 688 | QPNP_LAB_OUTPUT_OVERRIDE_EN)); |
| 689 | |
| 690 | pm8x41_wled_reg_write(wled->ibb_base + |
| 691 | QPNP_LABIBB_OUTPUT_VOLTAGE, mask); |
| 692 | } else { |
| 693 | pm8x41_wled_reg_write(wled->ibb_base + |
| 694 | QPNP_LABIBB_OUTPUT_VOLTAGE, 0x00); |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 695 | } |
| 696 | |
Aparna Mallavarapu | a42de90 | 2014-12-08 17:25:44 -0800 | [diff] [blame] | 697 | return 0; |
| 698 | } |