Lines Matching +full:pmic +full:- +full:specific
22 #include "prm-regbits-34xx.h"
23 #include "prm-regbits-44xx.h"
30 * struct omap_vc_channel_cfg - describe the cfg_channel bitfield
79 * omap_vc_config_channel - configure VC channel to PMIC mappings
82 * Configures the VC channel to PMIC mappings for the following
83 * PMIC settings
84 * - i2c slave address (SA)
85 * - voltage configuration address (RAV)
86 * - command configuration address (RAC) and enable bit (RACEN)
87 * - command values for ON, ONLP, RET and OFF (CMD)
90 * non-default channel. Starting with OMAP4, there are more than 2
92 * Only the non-default channel can be configured.
96 struct omap_vc_channel *vc = voltdm->vc; in omap_vc_config_channel()
102 if (vc->flags & OMAP_VC_CHANNEL_DEFAULT) in omap_vc_config_channel()
103 vc->cfg_channel &= vc_cfg_bits->racen; in omap_vc_config_channel()
105 voltdm->rmw(CFG_CHANNEL_MASK << vc->cfg_channel_sa_shift, in omap_vc_config_channel()
106 vc->cfg_channel << vc->cfg_channel_sa_shift, in omap_vc_config_channel()
107 vc->cfg_channel_reg); in omap_vc_config_channel()
117 struct omap_vc_channel *vc = voltdm->vc; in omap_vc_pre_scale()
120 /* Check if sufficient pmic info is available for this vdd */ in omap_vc_pre_scale()
121 if (!voltdm->pmic) { in omap_vc_pre_scale()
122 pr_err("%s: Insufficient pmic info to scale the vdd_%s\n", in omap_vc_pre_scale()
123 __func__, voltdm->name); in omap_vc_pre_scale()
124 return -EINVAL; in omap_vc_pre_scale()
127 if (!voltdm->pmic->uv_to_vsel) { in omap_vc_pre_scale()
128 …pr_err("%s: PMIC function to convert voltage in uV to vsel not registered. Hence unable to scale v… in omap_vc_pre_scale()
129 __func__, voltdm->name); in omap_vc_pre_scale()
130 return -ENODATA; in omap_vc_pre_scale()
133 if (!voltdm->read || !voltdm->write) { in omap_vc_pre_scale()
135 __func__, voltdm->name); in omap_vc_pre_scale()
136 return -EINVAL; in omap_vc_pre_scale()
139 *target_vsel = voltdm->pmic->uv_to_vsel(target_volt); in omap_vc_pre_scale()
140 *current_vsel = voltdm->pmic->uv_to_vsel(voltdm->nominal_volt); in omap_vc_pre_scale()
143 vc_cmdval = voltdm->read(vc->cmdval_reg); in omap_vc_pre_scale()
144 vc_cmdval &= ~vc->common->cmd_on_mask; in omap_vc_pre_scale()
145 vc_cmdval |= (*target_vsel << vc->common->cmd_on_shift); in omap_vc_pre_scale()
146 voltdm->write(vc_cmdval, vc->cmdval_reg); in omap_vc_pre_scale()
148 voltdm->vc_param->on = target_volt; in omap_vc_pre_scale()
161 smps_steps = abs(target_vsel - current_vsel); in omap_vc_post_scale()
163 smps_delay = ((smps_steps * voltdm->pmic->step_size) / in omap_vc_post_scale()
164 voltdm->pmic->slew_rate) + 2; in omap_vc_post_scale()
168 /* vc_bypass_scale - VC bypass method of voltage scaling */
172 struct omap_vc_channel *vc = voltdm->vc; in omap_vc_bypass_scale()
182 vc_valid = vc->common->valid; in omap_vc_bypass_scale()
183 vc_bypass_val_reg = vc->common->bypass_val_reg; in omap_vc_bypass_scale()
184 vc_bypass_value = (target_vsel << vc->common->data_shift) | in omap_vc_bypass_scale()
185 (vc->volt_reg_addr << vc->common->regaddr_shift) | in omap_vc_bypass_scale()
186 (vc->i2c_slave_addr << vc->common->slaveaddr_shift); in omap_vc_bypass_scale()
188 voltdm->write(vc_bypass_value, vc_bypass_val_reg); in omap_vc_bypass_scale()
189 voltdm->write(vc_bypass_value | vc_valid, vc_bypass_val_reg); in omap_vc_bypass_scale()
191 vc_bypass_value = voltdm->read(vc_bypass_val_reg); in omap_vc_bypass_scale()
202 return -ETIMEDOUT; in omap_vc_bypass_scale()
210 vc_bypass_value = voltdm->read(vc_bypass_val_reg); in omap_vc_bypass_scale()
253 voltsetup2 = c->voltsetup2; in omap3_vc_set_pmic_signaling()
255 voltsetup1 = c->voltsetup1; in omap3_vc_set_pmic_signaling()
263 voltsetup1 = c->voltsetup1; in omap3_vc_set_pmic_signaling()
268 vd->write(voltctrl, OMAP3_PRM_VOLTCTRL_OFFSET); in omap3_vc_set_pmic_signaling()
272 vd->write(c->voltsetup1, in omap3_vc_set_pmic_signaling()
277 vd->write(c->voltsetup2, in omap3_vc_set_pmic_signaling()
297 val = voltdm->read(OMAP3_PRM_POLCTRL_OFFSET); in omap3_vc_init_pmic_signaling()
304 voltdm->write(val, OMAP3_PRM_POLCTRL_OFFSET); in omap3_vc_init_pmic_signaling()
312 * idle. And we can also scale voltages to zero for off-idle. in omap3_vc_init_pmic_signaling()
313 * Note that no actual voltage scaling during off-idle will in omap3_vc_init_pmic_signaling()
314 * happen unless the board specific twl4030 PMIC scripts are in omap3_vc_init_pmic_signaling()
318 val = voltdm->read(OMAP3_PRM_VOLTCTRL_OFFSET); in omap3_vc_init_pmic_signaling()
323 voltdm->write(val, OMAP3_PRM_VOLTCTRL_OFFSET); in omap3_vc_init_pmic_signaling()
335 val = (voltdm->vc_param->on - idle) / voltdm->pmic->slew_rate; in omap3_init_voltsetup1()
336 val *= voltdm->sys_clk.rate / 8 / 1000000 + 1; in omap3_init_voltsetup1()
337 val <<= __ffs(voltdm->vfsm->voltsetup_mask); in omap3_init_voltsetup1()
338 c->voltsetup1 &= ~voltdm->vfsm->voltsetup_mask; in omap3_init_voltsetup1()
339 c->voltsetup1 |= val; in omap3_init_voltsetup1()
343 * omap3_set_i2c_timings - sets i2c sleep timings for a channel
351 * off-mode.
353 * Note that pmic is not controlling the voltage scaling during
363 omap3_init_voltsetup1(voltdm, c, voltdm->vc_param->off); in omap3_set_i2c_timings()
366 omap3_init_voltsetup1(voltdm, c, voltdm->vc_param->ret); in omap3_set_i2c_timings()
370 * omap3_set_off_timings - sets off-mode timings for a channel
373 * Calculates and sets up off-mode timings for a channel. Off-mode
389 if (c->voltsetup2) in omap3_set_off_timings()
394 pr_debug("PM: oscillator start-up time not initialized, using 10ms\n"); in omap3_set_off_timings()
405 * start-up time since voltoffset2 = clksetup - voltoffset. in omap3_set_off_timings()
408 c->voltsetup2 = clksetup - voltoffset; in omap3_set_off_timings()
409 voltdm->write(clksetup, OMAP3_PRM_CLKSETUP_OFFSET); in omap3_set_off_timings()
410 voltdm->write(voltoffset, OMAP3_PRM_VOLTOFFSET_OFFSET); in omap3_set_off_timings()
421 * omap4_calc_volt_ramp - calculates voltage ramping delays on omap4
436 time = voltage_diff / voltdm->pmic->slew_rate; in omap4_calc_volt_ramp()
438 cycles = voltdm->sys_clk.rate / 1000 * time / 1000; in omap4_calc_volt_ramp()
466 voltdm->name); in omap4_calc_volt_ramp()
477 * omap4_usec_to_val_scrm - convert microsecond value to SCRM module bitfield
501 * omap4_set_timings - set voltage ramp timings for a channel
503 * @off_mode: whether off-mode values are used
516 voltdm->vc_param->on - voltdm->vc_param->off); in omap4_set_timings()
517 offset = voltdm->vfsm->voltsetup_off_reg; in omap4_set_timings()
520 voltdm->vc_param->on - voltdm->vc_param->ret); in omap4_set_timings()
521 offset = voltdm->vfsm->voltsetup_reg; in omap4_set_timings()
527 val = voltdm->read(offset); in omap4_set_timings()
533 voltdm->write(val, offset); in omap4_set_timings()
545 /* OMAP4 specific voltage init functions */
602 * omap4_vc_i2c_timing_init - sets up board I2C timing parameters
605 * Use PMIC + board supplied settings for calculating the total I2C
607 * Pre-calculated values are provided in data tables, as it is not
617 if (!voltdm->pmic->i2c_high_speed) { in omap4_vc_i2c_timing_init()
628 /* PMIC pad capacitance */ in omap4_vc_i2c_timing_init()
629 capacitance += voltdm->pmic->i2c_pad_load; in omap4_vc_i2c_timing_init()
634 while (i2c_data->load > capacitance) in omap4_vc_i2c_timing_init()
638 switch (voltdm->sys_clk.rate) { in omap4_vc_i2c_timing_init()
640 hsscll = i2c_data->hsscll_38_4; in omap4_vc_i2c_timing_init()
643 hsscll = i2c_data->hsscll_26; in omap4_vc_i2c_timing_init()
646 hsscll = i2c_data->hsscll_19_2; in omap4_vc_i2c_timing_init()
649 hsscll = i2c_data->hsscll_16_8; in omap4_vc_i2c_timing_init()
652 hsscll = i2c_data->hsscll_12; in omap4_vc_i2c_timing_init()
656 voltdm->sys_clk.rate); in omap4_vc_i2c_timing_init()
661 val = i2c_data->loadbits << 25 | i2c_data->loadbits << 29; in omap4_vc_i2c_timing_init()
672 voltdm->write(val, OMAP4_PRM_VC_CFG_I2C_CLK_OFFSET); in omap4_vc_i2c_timing_init()
678 * omap_vc_i2c_init - initialize I2C interface to PMIC
681 * Use PMIC supplied settings for I2C high-speed mode and
692 struct omap_vc_channel *vc = voltdm->vc; in omap_vc_i2c_init()
698 if (voltdm->pmic->i2c_high_speed != i2c_high_speed) in omap_vc_i2c_init()
700 __func__, voltdm->name, i2c_high_speed); in omap_vc_i2c_init()
711 i2c_high_speed = voltdm->pmic->i2c_high_speed; in omap_vc_i2c_init()
713 voltdm->rmw(vc->common->i2c_cfg_clear_mask, in omap_vc_i2c_init()
714 vc->common->i2c_cfg_hsen_mask, in omap_vc_i2c_init()
715 vc->common->i2c_cfg_reg); in omap_vc_i2c_init()
717 mcode = voltdm->pmic->i2c_mcode; in omap_vc_i2c_init()
719 voltdm->rmw(vc->common->i2c_mcode_mask, in omap_vc_i2c_init()
720 mcode << __ffs(vc->common->i2c_mcode_mask), in omap_vc_i2c_init()
721 vc->common->i2c_cfg_reg); in omap_vc_i2c_init()
730 * omap_vc_calc_vsel - calculate vsel value for a channel
734 * Converts a microvolt value to vsel value for the used PMIC.
741 if (voltdm->pmic->vddmin > uvolt) in omap_vc_calc_vsel()
742 uvolt = voltdm->pmic->vddmin; in omap_vc_calc_vsel()
743 if (voltdm->pmic->vddmax < uvolt) { in omap_vc_calc_vsel()
744 WARN(1, "%s: voltage not supported by pmic: %u vs max %u\n", in omap_vc_calc_vsel()
745 __func__, uvolt, voltdm->pmic->vddmax); in omap_vc_calc_vsel()
747 uvolt = voltdm->pmic->vddmax; in omap_vc_calc_vsel()
750 return voltdm->pmic->uv_to_vsel(uvolt); in omap_vc_calc_vsel()
755 * omap_pm_setup_sr_i2c_pcb_length - set length of SR I2C traces on PCB
770 struct omap_vc_channel *vc = voltdm->vc; in omap_vc_init_channel()
774 if (!voltdm->pmic || !voltdm->pmic->uv_to_vsel) { in omap_vc_init_channel()
775 pr_err("%s: No PMIC info for vdd_%s\n", __func__, voltdm->name); in omap_vc_init_channel()
779 if (!voltdm->read || !voltdm->write) { in omap_vc_init_channel()
781 __func__, voltdm->name); in omap_vc_init_channel()
785 vc->cfg_channel = 0; in omap_vc_init_channel()
786 if (vc->flags & OMAP_VC_CHANNEL_CFG_MUTANT) in omap_vc_init_channel()
791 /* get PMIC/board specific settings */ in omap_vc_init_channel()
792 vc->i2c_slave_addr = voltdm->pmic->i2c_slave_addr; in omap_vc_init_channel()
793 vc->volt_reg_addr = voltdm->pmic->volt_reg_addr; in omap_vc_init_channel()
794 vc->cmd_reg_addr = voltdm->pmic->cmd_reg_addr; in omap_vc_init_channel()
797 voltdm->rmw(vc->smps_sa_mask, in omap_vc_init_channel()
798 vc->i2c_slave_addr << __ffs(vc->smps_sa_mask), in omap_vc_init_channel()
799 vc->smps_sa_reg); in omap_vc_init_channel()
800 vc->cfg_channel |= vc_cfg_bits->sa; in omap_vc_init_channel()
803 * Configure the PMIC register addresses. in omap_vc_init_channel()
805 voltdm->rmw(vc->smps_volra_mask, in omap_vc_init_channel()
806 vc->volt_reg_addr << __ffs(vc->smps_volra_mask), in omap_vc_init_channel()
807 vc->smps_volra_reg); in omap_vc_init_channel()
808 vc->cfg_channel |= vc_cfg_bits->rav; in omap_vc_init_channel()
810 if (vc->cmd_reg_addr) { in omap_vc_init_channel()
811 voltdm->rmw(vc->smps_cmdra_mask, in omap_vc_init_channel()
812 vc->cmd_reg_addr << __ffs(vc->smps_cmdra_mask), in omap_vc_init_channel()
813 vc->smps_cmdra_reg); in omap_vc_init_channel()
814 vc->cfg_channel |= vc_cfg_bits->rac; in omap_vc_init_channel()
817 if (vc->cmd_reg_addr == vc->volt_reg_addr) in omap_vc_init_channel()
818 vc->cfg_channel |= vc_cfg_bits->racen; in omap_vc_init_channel()
821 on_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->on); in omap_vc_init_channel()
822 onlp_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->onlp); in omap_vc_init_channel()
823 ret_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->ret); in omap_vc_init_channel()
824 off_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->off); in omap_vc_init_channel()
826 val = ((on_vsel << vc->common->cmd_on_shift) | in omap_vc_init_channel()
827 (onlp_vsel << vc->common->cmd_onlp_shift) | in omap_vc_init_channel()
828 (ret_vsel << vc->common->cmd_ret_shift) | in omap_vc_init_channel()
829 (off_vsel << vc->common->cmd_off_shift)); in omap_vc_init_channel()
830 voltdm->write(val, vc->cmdval_reg); in omap_vc_init_channel()
831 vc->cfg_channel |= vc_cfg_bits->cmd; in omap_vc_init_channel()