| /* Copyright (c) 2014-2016, The Linux Foundation. All rights reserved. |
| |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of The Linux Foundation, Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <stdio.h> |
| #include <string.h> |
| #include <stdlib.h> |
| #include <err.h> |
| #include <qpnp_wled.h> |
| #include <pm8x41_wled.h> |
| #include <qtimer.h> |
| #include <target.h> |
| |
| static int qpnp_wled_avdd_target_voltages[NUM_SUPPORTED_AVDD_VOLTAGES] = { |
| 7900, 7600, 7300, 6400, 6100, 5800, |
| }; |
| |
| static uint8_t qpnp_wled_ovp_reg_settings[NUM_SUPPORTED_AVDD_VOLTAGES] = { |
| 0x0, 0x0, 0x1, 0x2, 0x2, 0x3, |
| }; |
| |
| static int qpnp_wled_avdd_trim_adjustments[NUM_SUPPORTED_AVDD_VOLTAGES] = { |
| 3, 0, -2, 7, 3, 3, |
| }; |
| |
| static int fls(uint16_t n) |
| { |
| int i = 0; |
| for (; n; n >>= 1, i++); |
| return i; |
| } |
| |
| static struct qpnp_wled *gwled; |
| static int qpnp_labibb_regulator_set_voltage(struct qpnp_wled *wled); |
| |
| static int qpnp_wled_sec_access(struct qpnp_wled *wled, uint16_t base_addr) |
| { |
| uint8_t reg = QPNP_WLED_SEC_UNLOCK; |
| |
| pm8x41_wled_reg_write(QPNP_WLED_SEC_ACCESS_REG(base_addr), reg); |
| |
| return 0; |
| } |
| |
| /* set wled to a level of brightness */ |
| static int qpnp_wled_set_level(struct qpnp_wled *wled, int level) |
| { |
| int i; |
| uint8_t reg; |
| |
| /* set brightness registers */ |
| for (i = 0; i < wled->num_strings; i++) { |
| reg = level & QPNP_WLED_BRIGHT_LSB_MASK; |
| pm8x41_wled_reg_write(QPNP_WLED_BRIGHT_LSB_REG(wled->sink_base, |
| wled->strings[i]), reg); |
| |
| reg = level >> QPNP_WLED_BRIGHT_MSB_SHIFT; |
| reg = reg & QPNP_WLED_BRIGHT_MSB_MASK; |
| pm8x41_wled_reg_write(QPNP_WLED_BRIGHT_MSB_REG(wled->sink_base, |
| wled->strings[i]), reg); |
| } |
| |
| /* sync */ |
| reg = QPNP_WLED_SYNC; |
| pm8x41_wled_reg_write(QPNP_WLED_SYNC_REG(wled->sink_base), reg); |
| |
| reg = QPNP_WLED_SYNC_RESET; |
| pm8x41_wled_reg_write(QPNP_WLED_SYNC_REG(wled->sink_base), reg); |
| |
| return 0; |
| } |
| |
| static int qpnp_wled_enable(struct qpnp_wled *wled, |
| uint16_t base_addr, bool state) |
| { |
| uint8_t reg; |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_MODULE_EN_REG(base_addr)); |
| reg &= QPNP_WLED_MODULE_EN_MASK; |
| reg |= (state << QPNP_WLED_MODULE_EN_SHIFT); |
| pm8x41_wled_reg_write(QPNP_WLED_MODULE_EN_REG(base_addr), reg); |
| |
| return 0; |
| } |
| |
| static int qpnp_wled_ibb_swire_rdy(struct qpnp_wled *wled, |
| uint16_t base_addr, bool state) |
| { |
| uint8_t reg; |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_MODULE_EN_REG(base_addr)); |
| /* Do not enable IBB module when SWIRE ready is set */ |
| reg &= ~(QPNP_IBB_SWIRE_RDY_MASK | QPNP_IBB_MODULE_EN_MASK); |
| reg |= (state << QPNP_IBB_SWIRE_RDY_SHIFT); |
| pm8x41_wled_reg_write(QPNP_WLED_MODULE_EN_REG(base_addr), reg); |
| |
| return 0; |
| } |
| |
| int qpnp_ibb_enable(bool state) |
| { |
| int rc = 0; |
| uint8_t reg; |
| |
| if (!gwled) { |
| dprintf(CRITICAL, "%s: wled is not initialized yet\n", __func__); |
| return ERROR; |
| } |
| |
| /* enable lab */ |
| if (gwled->ibb_bias_active) { |
| rc = qpnp_wled_enable(gwled, gwled->lab_base, state); |
| udelay(QPNP_WLED_LAB_START_DLY_US + 1); |
| if (rc < 0) |
| return rc; |
| } else { |
| reg = pm8x41_wled_reg_read(QPNP_WLED_LAB_IBB_RDY_REG(gwled->lab_base)); |
| |
| reg &= QPNP_WLED_MODULE_EN_MASK; |
| reg |= (state << QPNP_WLED_MODULE_EN_SHIFT); |
| pm8x41_wled_reg_write(QPNP_WLED_LAB_IBB_RDY_REG(gwled->lab_base), reg); |
| } |
| |
| if (gwled->disp_type_amoled && gwled->lab_ibb_swire_control) |
| rc = qpnp_wled_ibb_swire_rdy(gwled, gwled->ibb_base, state); |
| else |
| rc = qpnp_wled_enable(gwled, gwled->ibb_base, state); |
| |
| return rc; |
| } |
| |
| /* enable / disable wled brightness */ |
| void qpnp_wled_enable_backlight(int enable) |
| { |
| int rc; |
| |
| if (!gwled) { |
| dprintf(CRITICAL, "%s: wled is not initialized yet\n", __func__); |
| return; |
| } |
| |
| if (enable) { |
| rc = qpnp_wled_set_level(gwled, QPNP_WLED_MAX_BR_LEVEL); |
| if (rc) { |
| dprintf(CRITICAL,"wled set level failed\n"); |
| return; |
| } |
| } |
| |
| if (!gwled->disp_type_amoled || !gwled->wled_avdd_control) { |
| rc = qpnp_wled_enable(gwled, gwled->ctrl_base, enable); |
| if (rc) { |
| dprintf(CRITICAL, "wled %sable failed\n", |
| enable ? "en" : "dis"); |
| return; |
| } |
| } |
| |
| } |
| |
| static int qpnp_wled_set_display_type(struct qpnp_wled *wled, uint16_t base_addr) |
| { |
| uint8_t reg = 0; |
| int rc; |
| |
| /* display type */ |
| reg = pm8x41_wled_reg_read(QPNP_WLED_DISP_SEL_REG(base_addr)); |
| |
| reg &= QPNP_WLED_DISP_SEL_MASK; |
| reg |= (wled->disp_type_amoled << QPNP_WLED_DISP_SEL_SHIFT); |
| |
| rc = qpnp_wled_sec_access(wled, base_addr); |
| if (rc) |
| return rc; |
| |
| pm8x41_wled_reg_write(QPNP_WLED_DISP_SEL_REG(base_addr), reg); |
| |
| return 0; |
| } |
| |
| static int qpnp_wled_module_ready(struct qpnp_wled *wled, uint16_t base_addr, bool state) |
| { |
| uint8_t reg; |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_MODULE_RDY_REG(base_addr)); |
| reg &= QPNP_WLED_MODULE_RDY_MASK; |
| reg |= (state << QPNP_WLED_MODULE_RDY_SHIFT); |
| pm8x41_wled_reg_write(QPNP_WLED_MODULE_RDY_REG(base_addr), reg); |
| |
| return 0; |
| } |
| |
| /* Configure WLED registers */ |
| static int qpnp_wled_config(struct qpnp_wled *wled) |
| { |
| int rc, i, temp; |
| uint8_t reg = 0; |
| |
| /* Configure display type */ |
| rc = qpnp_wled_set_display_type(wled, wled->ctrl_base); |
| if (rc < 0) |
| return rc; |
| |
| /* Recommended WLED MDOS settings for AMOLED */ |
| if (wled->disp_type_amoled) { |
| pm8x41_wled_reg_write(QPNP_WLED_VLOOP_COMP_RES(wled->ctrl_base), |
| 0x8F); |
| pm8x41_wled_reg_write(QPNP_WLED_VLOOP_COMP_GM(wled->ctrl_base), |
| 0x81); |
| pm8x41_wled_reg_write(QPNP_WLED_PSM_CTRL(wled->ctrl_base), |
| 0x83); |
| pm8x41_wled_reg_write(QPNP_WLED_PSM_EN(wled->ctrl_base), |
| 0x80); |
| |
| rc = qpnp_wled_sec_access(wled, wled->ctrl_base); |
| if (rc) |
| return rc; |
| pm8x41_wled_reg_write(QPNP_WLED_TEST4(wled->ctrl_base), 0x13); |
| } |
| |
| /* Configure the FEEDBACK OUTPUT register */ |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_FDBK_OP_REG(wled->ctrl_base)); |
| reg &= QPNP_WLED_FDBK_OP_MASK; |
| reg |= wled->fdbk_op; |
| pm8x41_wled_reg_write(QPNP_WLED_FDBK_OP_REG(wled->ctrl_base), reg); |
| |
| /* Configure the VREF register */ |
| if (wled->vref_mv < QPNP_WLED_VREF_MIN_MV) |
| wled->vref_mv = QPNP_WLED_VREF_MIN_MV; |
| else if (wled->vref_mv > QPNP_WLED_VREF_MAX_MV) |
| wled->vref_mv = QPNP_WLED_VREF_MAX_MV; |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_VREF_REG(wled->ctrl_base)); |
| reg &= QPNP_WLED_VREF_MASK; |
| temp = wled->vref_mv - QPNP_WLED_VREF_MIN_MV; |
| reg |= (temp / QPNP_WLED_VREF_STEP_MV); |
| pm8x41_wled_reg_write(QPNP_WLED_VREF_REG(wled->ctrl_base), reg); |
| |
| /* Configure the ILIM register */ |
| if (wled->ilim_ma < QPNP_WLED_ILIM_MIN_MA) |
| wled->ilim_ma = QPNP_WLED_ILIM_MIN_MA; |
| else if (wled->ilim_ma > QPNP_WLED_ILIM_MAX_MA) |
| wled->ilim_ma = QPNP_WLED_ILIM_MAX_MA; |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_ILIM_REG(wled->ctrl_base)); |
| temp = (wled->ilim_ma / QPNP_WLED_ILIM_STEP_MA); |
| if (temp != (reg & ~QPNP_WLED_ILIM_MASK)) { |
| reg &= QPNP_WLED_ILIM_MASK; |
| reg |= temp; |
| reg |= QPNP_WLED_ILIM_OVERWRITE; |
| pm8x41_wled_reg_write(QPNP_WLED_ILIM_REG(wled->ctrl_base), reg); |
| } |
| |
| /* Configure the MAX BOOST DUTY register */ |
| if (wled->boost_duty_ns < QPNP_WLED_BOOST_DUTY_MIN_NS) |
| wled->boost_duty_ns = QPNP_WLED_BOOST_DUTY_MIN_NS; |
| else if (wled->boost_duty_ns > QPNP_WLED_BOOST_DUTY_MAX_NS) |
| wled->boost_duty_ns = QPNP_WLED_BOOST_DUTY_MAX_NS; |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_BOOST_DUTY_REG(wled->ctrl_base)); |
| reg &= QPNP_WLED_BOOST_DUTY_MASK; |
| reg |= (wled->boost_duty_ns / QPNP_WLED_BOOST_DUTY_STEP_NS); |
| pm8x41_wled_reg_write(QPNP_WLED_BOOST_DUTY_REG(wled->ctrl_base), reg); |
| |
| /* Configure the SWITCHING FREQ register */ |
| if (wled->switch_freq_khz == QPNP_WLED_SWITCH_FREQ_1600_KHZ) |
| temp = QPNP_WLED_SWITCH_FREQ_1600_KHZ_CODE; |
| else |
| temp = QPNP_WLED_SWITCH_FREQ_800_KHZ_CODE; |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_SWITCH_FREQ_REG(wled->ctrl_base)); |
| reg &= QPNP_WLED_SWITCH_FREQ_MASK; |
| reg |= temp; |
| pm8x41_wled_reg_write(QPNP_WLED_SWITCH_FREQ_REG(wled->ctrl_base), reg); |
| |
| /* Configure the OVP register */ |
| if (wled->ovp_mv <= QPNP_WLED_OVP_17800_MV) { |
| wled->ovp_mv = QPNP_WLED_OVP_17800_MV; |
| temp = 3; |
| } else if (wled->ovp_mv <= QPNP_WLED_OVP_19400_MV) { |
| wled->ovp_mv = QPNP_WLED_OVP_19400_MV; |
| temp = 2; |
| } else if (wled->ovp_mv <= QPNP_WLED_OVP_29500_MV) { |
| wled->ovp_mv = QPNP_WLED_OVP_29500_MV; |
| temp = 1; |
| } else { |
| wled->ovp_mv = QPNP_WLED_OVP_31000_MV; |
| temp = 0; |
| } |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_OVP_REG(wled->ctrl_base)); |
| reg &= QPNP_WLED_OVP_MASK; |
| reg |= temp; |
| pm8x41_wled_reg_write(QPNP_WLED_OVP_REG(wled->ctrl_base), reg); |
| |
| if (wled->disp_type_amoled) { |
| for (i = 0; i < NUM_SUPPORTED_AVDD_VOLTAGES; i++) { |
| if (QPNP_WLED_AVDD_DEFAULT_VOLTAGE_MV == qpnp_wled_avdd_target_voltages[i]) |
| break; |
| } |
| if (i == NUM_SUPPORTED_AVDD_VOLTAGES) |
| { |
| dprintf(CRITICAL, "Invalid avdd target voltage specified \n"); |
| return ERR_NOT_VALID; |
| } |
| /* Update WLED_OVP register based on desired target voltage */ |
| reg = qpnp_wled_ovp_reg_settings[i]; |
| pm8x41_wled_reg_write(QPNP_WLED_OVP_REG(wled->ctrl_base), reg); |
| /* Update WLED_TRIM register based on desired target voltage */ |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_REF_7P7_TRIM_REG(wled->ctrl_base)); |
| reg += qpnp_wled_avdd_trim_adjustments[i]; |
| if ((int8_t)reg < QPNP_WLED_AVDD_MIN_TRIM_VALUE) |
| reg = QPNP_WLED_AVDD_MIN_TRIM_VALUE; |
| else if((int8_t)reg > QPNP_WLED_AVDD_MAX_TRIM_VALUE) |
| reg = QPNP_WLED_AVDD_MAX_TRIM_VALUE; |
| |
| rc = qpnp_wled_sec_access(wled, wled->ctrl_base); |
| if (rc) |
| return rc; |
| |
| temp = pm8x41_wled_reg_read( |
| QPNP_WLED_REF_7P7_TRIM_REG(wled->ctrl_base)); |
| temp &= ~QPNP_WLED_7P7_TRIM_MASK; |
| temp |= (reg & QPNP_WLED_7P7_TRIM_MASK); |
| pm8x41_wled_reg_write(QPNP_WLED_REF_7P7_TRIM_REG(wled->ctrl_base), temp); |
| /* Write to spare to avoid reconfiguration in HLOS */ |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_CTRL_SPARE_REG(wled->ctrl_base)); |
| reg |= QPNP_WLED_AVDD_SET_BIT; |
| pm8x41_wled_reg_write(QPNP_WLED_CTRL_SPARE_REG(wled->ctrl_base), reg); |
| } |
| |
| /* Configure the MODULATION register */ |
| if (wled->mod_freq_khz <= QPNP_WLED_MOD_FREQ_1200_KHZ) { |
| wled->mod_freq_khz = QPNP_WLED_MOD_FREQ_1200_KHZ; |
| temp = 3; |
| } else if (wled->mod_freq_khz <= QPNP_WLED_MOD_FREQ_2400_KHZ) { |
| wled->mod_freq_khz = QPNP_WLED_MOD_FREQ_2400_KHZ; |
| temp = 2; |
| } else if (wled->mod_freq_khz <= QPNP_WLED_MOD_FREQ_9600_KHZ) { |
| wled->mod_freq_khz = QPNP_WLED_MOD_FREQ_9600_KHZ; |
| temp = 1; |
| } else { |
| wled->mod_freq_khz = QPNP_WLED_MOD_FREQ_19200_KHZ; |
| temp = 0; |
| } |
| reg = pm8x41_wled_reg_read(QPNP_WLED_MOD_REG(wled->sink_base)); |
| |
| reg &= QPNP_WLED_MOD_FREQ_MASK; |
| reg |= (temp << QPNP_WLED_MOD_FREQ_SHIFT); |
| |
| reg &= QPNP_WLED_PHASE_STAG_MASK; |
| reg |= (wled->en_phase_stag << QPNP_WLED_PHASE_STAG_SHIFT); |
| |
| reg &= QPNP_WLED_DIM_RES_MASK; |
| reg |= (wled->en_9b_dim_res << QPNP_WLED_DIM_RES_SHIFT); |
| |
| if (wled->dim_mode == QPNP_WLED_DIM_HYBRID) { |
| reg &= QPNP_WLED_DIM_HYB_MASK; |
| reg |= (1 << QPNP_WLED_DIM_HYB_SHIFT); |
| } else { |
| reg &= QPNP_WLED_DIM_HYB_MASK; |
| reg |= (0 << QPNP_WLED_DIM_HYB_SHIFT); |
| reg &= QPNP_WLED_DIM_ANA_MASK; |
| reg |= wled->dim_mode; |
| } |
| |
| pm8x41_wled_reg_write(QPNP_WLED_MOD_REG(wled->sink_base), reg); |
| |
| /* Configure the HYBRID THRESHOLD register */ |
| if (wled->hyb_thres < QPNP_WLED_HYB_THRES_MIN) |
| wled->hyb_thres = QPNP_WLED_HYB_THRES_MIN; |
| else if (wled->hyb_thres > QPNP_WLED_HYB_THRES_MAX) |
| wled->hyb_thres = QPNP_WLED_HYB_THRES_MAX; |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_HYB_THRES_REG(wled->sink_base)); |
| |
| reg &= QPNP_WLED_HYB_THRES_MASK; |
| temp = fls(wled->hyb_thres / QPNP_WLED_HYB_THRES_MIN) - 1; |
| reg |= temp; |
| pm8x41_wled_reg_write(QPNP_WLED_HYB_THRES_REG(wled->sink_base), reg); |
| |
| for (i = 0; i < wled->num_strings; i++) { |
| if (wled->strings[i] >= QPNP_WLED_MAX_STRINGS) { |
| dprintf(CRITICAL,"Invalid string number\n"); |
| return ERR_NOT_VALID; |
| } |
| |
| /* MODULATOR */ |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_MOD_EN_REG(wled->sink_base, |
| wled->strings[i])); |
| reg &= QPNP_WLED_MOD_EN_MASK; |
| reg |= (QPNP_WLED_MOD_EN << QPNP_WLED_MOD_EN_SHFT); |
| pm8x41_wled_reg_write(QPNP_WLED_MOD_EN_REG(wled->sink_base, |
| wled->strings[i]), reg); |
| |
| /* SYNC DELAY */ |
| if (wled->sync_dly_us > QPNP_WLED_SYNC_DLY_MAX_US) |
| wled->sync_dly_us = QPNP_WLED_SYNC_DLY_MAX_US; |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_SYNC_DLY_REG(wled->sink_base, |
| wled->strings[i])); |
| reg &= QPNP_WLED_SYNC_DLY_MASK; |
| temp = wled->sync_dly_us / QPNP_WLED_SYNC_DLY_STEP_US; |
| reg |= temp; |
| pm8x41_wled_reg_write(QPNP_WLED_SYNC_DLY_REG(wled->sink_base, |
| wled->strings[i]), reg); |
| |
| /* FULL SCALE CURRENT */ |
| if (wled->fs_curr_ua > QPNP_WLED_FS_CURR_MAX_UA) |
| wled->fs_curr_ua = QPNP_WLED_FS_CURR_MAX_UA; |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_FS_CURR_REG(wled->sink_base, |
| wled->strings[i])); |
| reg &= QPNP_WLED_FS_CURR_MASK; |
| temp = wled->fs_curr_ua / QPNP_WLED_FS_CURR_STEP_UA; |
| reg |= temp; |
| pm8x41_wled_reg_write(QPNP_WLED_FS_CURR_REG(wled->sink_base, |
| wled->strings[i]), reg); |
| |
| /* CABC */ |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_CABC_REG(wled->sink_base, |
| wled->strings[i])); |
| reg &= QPNP_WLED_CABC_MASK; |
| reg |= (wled->en_cabc << QPNP_WLED_CABC_SHIFT); |
| pm8x41_wled_reg_write(QPNP_WLED_CABC_REG(wled->sink_base, |
| wled->strings[i]), reg); |
| |
| /* Enable CURRENT SINK */ |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_CURR_SINK_REG(wled->sink_base)); |
| temp = wled->strings[i] + QPNP_WLED_CURR_SINK_SHIFT; |
| reg |= (1 << temp); |
| pm8x41_wled_reg_write(QPNP_WLED_CURR_SINK_REG(wled->sink_base), reg); |
| } |
| |
| /* LAB fast precharge */ |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_LAB_FAST_PC_REG(wled->lab_base)); |
| reg &= QPNP_WLED_LAB_FAST_PC_MASK; |
| reg |= (wled->lab_fast_precharge << QPNP_WLED_LAB_FAST_PC_SHIFT); |
| /* LAB max precharge time */ |
| reg &= QPNP_WLED_PRECHARGE_MASK; |
| reg |= (wled->lab_max_precharge_time); |
| pm8x41_wled_reg_write(QPNP_WLED_LAB_FAST_PC_REG(wled->lab_base), reg); |
| |
| /* Configure lab display type */ |
| rc = qpnp_wled_set_display_type(wled, wled->lab_base); |
| if (rc < 0) |
| return rc; |
| |
| /* make LAB module ready */ |
| rc = qpnp_wled_module_ready(wled, wled->lab_base, true); |
| if (rc < 0) |
| return rc; |
| |
| /* Disable LAB pulse skipping for AMOLED */ |
| if (wled->disp_type_amoled) |
| pm8x41_wled_reg_write(wled->lab_base + |
| QPNP_LABIBB_PS_CTL, 0x00); |
| |
| /* IBB active bias */ |
| if (wled->ibb_pwrup_dly_ms > QPNP_WLED_IBB_PWRUP_DLY_MAX_MS) |
| wled->ibb_pwrup_dly_ms = QPNP_WLED_IBB_PWRUP_DLY_MAX_MS; |
| |
| if (wled->ibb_pwrdn_dly_ms > QPNP_WLED_IBB_PWRDN_DLY_MAX_MS) |
| wled->ibb_pwrdn_dly_ms = QPNP_WLED_IBB_PWRDN_DLY_MAX_MS; |
| |
| reg = pm8x41_wled_reg_read( |
| QPNP_WLED_IBB_BIAS_REG(wled->ibb_base)); |
| |
| reg &= QPNP_WLED_IBB_BIAS_MASK; |
| reg |= (!wled->ibb_bias_active << QPNP_WLED_IBB_BIAS_SHIFT); |
| |
| temp = wled->ibb_pwrup_dly_ms; |
| reg &= QPNP_WLED_IBB_PWRUP_DLY_MASK; |
| reg |= (temp << QPNP_WLED_IBB_PWRUP_DLY_SHIFT); |
| /* Power down delay bits could already be set, clear them before |
| * or'ing new values |
| */ |
| reg &= ~(PWRDN_DLY2_MASK); |
| reg |= wled->ibb_pwrdn_dly_ms; |
| reg |= (wled->ibb_discharge_en << 2); |
| |
| rc = qpnp_wled_sec_access(wled, wled->ibb_base); |
| if (rc) |
| return rc; |
| |
| pm8x41_wled_reg_write(QPNP_WLED_IBB_BIAS_REG(wled->ibb_base), reg); |
| |
| /* Configure ibb display type */ |
| rc = qpnp_wled_set_display_type(wled, wled->ibb_base); |
| if (rc < 0) |
| return rc; |
| |
| /* make IBB module ready */ |
| rc = qpnp_wled_module_ready(wled, wled->ibb_base, true); |
| if (rc < 0) |
| return rc; |
| |
| rc = qpnp_labibb_regulator_set_voltage(wled); |
| if (rc < 0) |
| return rc; |
| |
| return 0; |
| } |
| |
| /* Setup wled default parameters */ |
| static int qpnp_wled_setup(struct qpnp_wled *wled, struct qpnp_wled_config_data *config) |
| { |
| int i; |
| |
| wled->sink_base = QPNP_WLED_SINK_BASE; |
| wled->ctrl_base = QPNP_WLED_CTRL_BASE; |
| wled->ibb_base = QPNP_WLED_IBB_BASE; |
| wled->lab_base = QPNP_WLED_LAB_BASE; |
| wled->fdbk_op = QPNP_WLED_FDBK_AUTO; |
| wled->vref_mv = QPNP_WLED_DFLT_VREF_MV; |
| wled->switch_freq_khz = QPNP_WLED_SWITCH_FREQ_800_KHZ; |
| wled->ovp_mv = QPNP_WLED_OVP_29500_MV; |
| wled->ilim_ma = QPNP_WLED_DFLT_ILIM_MA; |
| wled->boost_duty_ns = QPNP_WLED_BOOST_DUTY_MIN_NS; |
| wled->mod_freq_khz = QPNP_WLED_MOD_FREQ_19200_KHZ; |
| wled->dim_mode = QPNP_WLED_DIM_HYBRID; |
| wled->dim_shape = QPNP_WLED_DIM_SHAPE_LINEAR; |
| |
| if (wled->dim_mode == QPNP_WLED_DIM_HYBRID) { |
| wled->hyb_thres = QPNP_WLED_DFLT_HYB_THRES; |
| } |
| |
| wled->sync_dly_us = 800; |
| wled->fs_curr_ua = 16000; |
| wled->en_9b_dim_res = 0; |
| wled->en_phase_stag = true; |
| wled->en_cabc = 0; |
| |
| wled->num_strings = QPNP_WLED_MAX_STRINGS; |
| for (i = 0; i < wled->num_strings; i++) |
| wled->strings[i] = i; |
| |
| wled->ibb_bias_active = false; |
| wled->lab_fast_precharge = false; |
| wled->lab_max_precharge_time = QPNP_WLED_PRECHARGE_US500; |
| wled->ibb_pwrup_dly_ms = config->pwr_up_delay; |
| wled->ibb_pwrdn_dly_ms = config->pwr_down_delay; |
| wled->ibb_discharge_en = config->ibb_discharge_en; |
| wled->disp_type_amoled = config->display_type; |
| wled->lab_min_volt = config->lab_min_volt; |
| wled->lab_max_volt = config->lab_max_volt; |
| wled->ibb_min_volt = config->ibb_min_volt; |
| wled->ibb_max_volt = config->ibb_max_volt; |
| wled->ibb_init_volt = config->ibb_init_volt; |
| wled->lab_init_volt = config->lab_init_volt; |
| wled->lab_ibb_swire_control = config->lab_ibb_swire_control; |
| wled->wled_avdd_control = config->wled_avdd_control; |
| |
| return 0; |
| } |
| |
| int qpnp_wled_init(struct qpnp_wled_config_data *config) |
| { |
| int rc; |
| struct qpnp_wled *wled; |
| |
| if(!target_is_pmi_enabled()) |
| return ERR_NOT_FOUND; |
| |
| wled = malloc(sizeof(struct qpnp_wled)); |
| if (!wled) |
| return ERR_NO_MEMORY; |
| |
| memset(wled, 0, sizeof(struct qpnp_wled)); |
| |
| rc = qpnp_wled_setup(wled, config); |
| if (rc) { |
| dprintf(CRITICAL, "Setting WLED parameters failed\n"); |
| return rc; |
| } |
| |
| rc = qpnp_wled_config(wled); |
| if (rc) { |
| dprintf(CRITICAL, "wled config failed\n"); |
| return rc; |
| } |
| |
| gwled = wled; |
| |
| return rc; |
| } |
| |
| static int qpnp_labibb_regulator_set_voltage(struct qpnp_wled *wled) |
| { |
| int rc = -1; |
| uint32_t new_uV; |
| uint8_t val, mask=0; |
| |
| if (!wled->disp_type_amoled || !wled->lab_ibb_swire_control) { |
| if (wled->lab_min_volt < wled->lab_init_volt) { |
| dprintf(CRITICAL,"qpnp_lab_regulator_set_voltage failed, min_uV %d is less than init volt %d\n", |
| wled->lab_min_volt, wled->lab_init_volt); |
| return rc; |
| } |
| |
| val = (((wled->lab_min_volt - wled->lab_init_volt) + |
| (IBB_LAB_VREG_STEP_SIZE - 1)) / IBB_LAB_VREG_STEP_SIZE); |
| new_uV = val * IBB_LAB_VREG_STEP_SIZE + wled->lab_init_volt; |
| |
| if (new_uV > wled->lab_max_volt) { |
| dprintf(CRITICAL,"qpnp_ibb_regulator_set_voltage unable to set voltage (%d %d)\n", |
| wled->lab_min_volt, wled->lab_max_volt); |
| return rc; |
| } |
| val |= QPNP_LAB_OUTPUT_OVERRIDE_EN; |
| mask = pm8x41_wled_reg_read(wled->lab_base + |
| QPNP_LABIBB_OUTPUT_VOLTAGE); |
| mask &= ~(QPNP_LAB_SET_VOLTAGE_MASK |
| | QPNP_LAB_OUTPUT_OVERRIDE_EN); |
| mask |= val & (QPNP_LAB_SET_VOLTAGE_MASK |
| | QPNP_LAB_OUTPUT_OVERRIDE_EN); |
| |
| pm8x41_wled_reg_write(wled->lab_base + |
| QPNP_LABIBB_OUTPUT_VOLTAGE, mask); |
| udelay(2); |
| |
| /* |
| * IBB Set Voltage. |
| * For AMOLED panels, the IBB voltage needs to be |
| * controlled by panel. |
| */ |
| if (wled->ibb_min_volt < wled->ibb_init_volt) { |
| dprintf(CRITICAL, "qpnp_ibb_regulator_set_voltage failed, min_uV %d is less than init volt %d\n", |
| wled->ibb_min_volt, wled->ibb_init_volt); |
| return rc; |
| } |
| |
| val = (((wled->ibb_min_volt - wled->ibb_init_volt) + |
| (IBB_LAB_VREG_STEP_SIZE - 1)) / IBB_LAB_VREG_STEP_SIZE); |
| new_uV = val * IBB_LAB_VREG_STEP_SIZE + wled->ibb_init_volt; |
| if (new_uV > wled->ibb_max_volt) { |
| dprintf(CRITICAL, "qpnp_ibb_regulator_set_voltage unable to set voltage %d %d\n", |
| wled->ibb_min_volt, wled->ibb_max_volt); |
| return rc; |
| } |
| val |= QPNP_LAB_OUTPUT_OVERRIDE_EN; |
| mask = pm8x41_wled_reg_read(wled->ibb_base + |
| QPNP_LABIBB_OUTPUT_VOLTAGE); |
| udelay(2); |
| mask &= ~(QPNP_IBB_SET_VOLTAGE_MASK | |
| QPNP_LAB_OUTPUT_OVERRIDE_EN); |
| mask |= (val & (QPNP_IBB_SET_VOLTAGE_MASK | |
| QPNP_LAB_OUTPUT_OVERRIDE_EN)); |
| |
| pm8x41_wled_reg_write(wled->ibb_base + |
| QPNP_LABIBB_OUTPUT_VOLTAGE, mask); |
| } else { |
| pm8x41_wled_reg_write(wled->ibb_base + |
| QPNP_LABIBB_OUTPUT_VOLTAGE, 0x00); |
| } |
| |
| return 0; |
| } |