| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Yong Shen | 2427 | 84.59% | 1 | 3.33% |
| Shawn Guo | 132 | 4.60% | 1 | 3.33% |
| Axel Lin | 114 | 3.97% | 13 | 43.33% |
| Rob Herring | 60 | 2.09% | 1 | 3.33% |
| Matt Sealey | 54 | 1.88% | 1 | 3.33% |
| Guodong Xu | 28 | 0.98% | 1 | 3.33% |
| Fabio Estevam | 14 | 0.49% | 3 | 10.00% |
| Jingoo Han | 10 | 0.35% | 1 | 3.33% |
| Sachin Kamat | 8 | 0.28% | 1 | 3.33% |
| Doug Anderson | 5 | 0.17% | 1 | 3.33% |
| Kees Cook | 4 | 0.14% | 1 | 3.33% |
| Samuel Ortiz | 4 | 0.14% | 1 | 3.33% |
| Paul Gortmaker | 3 | 0.10% | 1 | 3.33% |
| Mark Brown | 2 | 0.07% | 1 | 3.33% |
| Alexander Shiyan | 2 | 0.07% | 1 | 3.33% |
| Zheng Yongjun | 2 | 0.07% | 1 | 3.33% |
| Total | 2869 | 30 |
// SPDX-License-Identifier: GPL-2.0 // // Regulator Driver for Freescale MC13892 PMIC // // Copyright 2010 Yong Shen <yong.shen@linaro.org> // // Based on draft driver from Arnaud Patard <arnaud.patard@rtp-net.org> #include <linux/mfd/mc13892.h> #include <linux/regulator/machine.h> #include <linux/regulator/driver.h> #include <linux/platform_device.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/err.h> #include <linux/module.h> #include "mc13xxx.h" #define MC13892_REVISION 7 #define MC13892_POWERCTL0 13 #define MC13892_POWERCTL0_USEROFFSPI 3 #define MC13892_POWERCTL0_VCOINCELLVSEL 20 #define MC13892_POWERCTL0_VCOINCELLVSEL_M (7<<20) #define MC13892_POWERCTL0_VCOINCELLEN (1<<23) #define MC13892_SWITCHERS0_SWxHI (1<<23) #define MC13892_SWITCHERS0 24 #define MC13892_SWITCHERS0_SW1VSEL 0 #define MC13892_SWITCHERS0_SW1VSEL_M (0x1f<<0) #define MC13892_SWITCHERS0_SW1HI (1<<23) #define MC13892_SWITCHERS0_SW1EN 0 #define MC13892_SWITCHERS1 25 #define MC13892_SWITCHERS1_SW2VSEL 0 #define MC13892_SWITCHERS1_SW2VSEL_M (0x1f<<0) #define MC13892_SWITCHERS1_SW2HI (1<<23) #define MC13892_SWITCHERS1_SW2EN 0 #define MC13892_SWITCHERS2 26 #define MC13892_SWITCHERS2_SW3VSEL 0 #define MC13892_SWITCHERS2_SW3VSEL_M (0x1f<<0) #define MC13892_SWITCHERS2_SW3HI (1<<23) #define MC13892_SWITCHERS2_SW3EN 0 #define MC13892_SWITCHERS3 27 #define MC13892_SWITCHERS3_SW4VSEL 0 #define MC13892_SWITCHERS3_SW4VSEL_M (0x1f<<0) #define MC13892_SWITCHERS3_SW4HI (1<<23) #define MC13892_SWITCHERS3_SW4EN 0 #define MC13892_SWITCHERS4 28 #define MC13892_SWITCHERS4_SW1MODE 0 #define MC13892_SWITCHERS4_SW1MODE_AUTO (8<<0) #define MC13892_SWITCHERS4_SW1MODE_M (0xf<<0) #define MC13892_SWITCHERS4_SW2MODE 10 #define MC13892_SWITCHERS4_SW2MODE_AUTO (8<<10) #define MC13892_SWITCHERS4_SW2MODE_M (0xf<<10) #define MC13892_SWITCHERS5 29 #define MC13892_SWITCHERS5_SW3MODE 0 #define MC13892_SWITCHERS5_SW3MODE_AUTO (8<<0) #define MC13892_SWITCHERS5_SW3MODE_M (0xf<<0) #define MC13892_SWITCHERS5_SW4MODE 8 #define MC13892_SWITCHERS5_SW4MODE_AUTO (8<<8) #define MC13892_SWITCHERS5_SW4MODE_M (0xf<<8) #define MC13892_SWITCHERS5_SWBSTEN (1<<20) #define MC13892_REGULATORSETTING0 30 #define MC13892_REGULATORSETTING0_VGEN1VSEL 0 #define MC13892_REGULATORSETTING0_VDIGVSEL 4 #define MC13892_REGULATORSETTING0_VGEN2VSEL 6 #define MC13892_REGULATORSETTING0_VPLLVSEL 9 #define MC13892_REGULATORSETTING0_VUSB2VSEL 11 #define MC13892_REGULATORSETTING0_VGEN3VSEL 14 #define MC13892_REGULATORSETTING0_VCAMVSEL 16 #define MC13892_REGULATORSETTING0_VGEN1VSEL_M (3<<0) #define MC13892_REGULATORSETTING0_VDIGVSEL_M (3<<4) #define MC13892_REGULATORSETTING0_VGEN2VSEL_M (7<<6) #define MC13892_REGULATORSETTING0_VPLLVSEL_M (3<<9) #define MC13892_REGULATORSETTING0_VUSB2VSEL_M (3<<11) #define MC13892_REGULATORSETTING0_VGEN3VSEL_M (1<<14) #define MC13892_REGULATORSETTING0_VCAMVSEL_M (3<<16) #define MC13892_REGULATORSETTING1 31 #define MC13892_REGULATORSETTING1_VVIDEOVSEL 2 #define MC13892_REGULATORSETTING1_VAUDIOVSEL 4 #define MC13892_REGULATORSETTING1_VSDVSEL 6 #define MC13892_REGULATORSETTING1_VVIDEOVSEL_M (3<<2) #define MC13892_REGULATORSETTING1_VAUDIOVSEL_M (3<<4) #define MC13892_REGULATORSETTING1_VSDVSEL_M (7<<6) #define MC13892_REGULATORMODE0 32 #define MC13892_REGULATORMODE0_VGEN1EN (1<<0) #define MC13892_REGULATORMODE0_VGEN1STDBY (1<<1) #define MC13892_REGULATORMODE0_VGEN1MODE (1<<2) #define MC13892_REGULATORMODE0_VIOHIEN (1<<3) #define MC13892_REGULATORMODE0_VIOHISTDBY (1<<4) #define MC13892_REGULATORMODE0_VIOHIMODE (1<<5) #define MC13892_REGULATORMODE0_VDIGEN (1<<9) #define MC13892_REGULATORMODE0_VDIGSTDBY (1<<10) #define MC13892_REGULATORMODE0_VDIGMODE (1<<11) #define MC13892_REGULATORMODE0_VGEN2EN (1<<12) #define MC13892_REGULATORMODE0_VGEN2STDBY (1<<13) #define MC13892_REGULATORMODE0_VGEN2MODE (1<<14) #define MC13892_REGULATORMODE0_VPLLEN (1<<15) #define MC13892_REGULATORMODE0_VPLLSTDBY (1<<16) #define MC13892_REGULATORMODE0_VPLLMODE (1<<17) #define MC13892_REGULATORMODE0_VUSB2EN (1<<18) #define MC13892_REGULATORMODE0_VUSB2STDBY (1<<19) #define MC13892_REGULATORMODE0_VUSB2MODE (1<<20) #define MC13892_REGULATORMODE1 33 #define MC13892_REGULATORMODE1_VGEN3EN (1<<0) #define MC13892_REGULATORMODE1_VGEN3STDBY (1<<1) #define MC13892_REGULATORMODE1_VGEN3MODE (1<<2) #define MC13892_REGULATORMODE1_VCAMEN (1<<6) #define MC13892_REGULATORMODE1_VCAMSTDBY (1<<7) #define MC13892_REGULATORMODE1_VCAMMODE (1<<8) #define MC13892_REGULATORMODE1_VCAMCONFIGEN (1<<9) #define MC13892_REGULATORMODE1_VVIDEOEN (1<<12) #define MC13892_REGULATORMODE1_VVIDEOSTDBY (1<<13) #define MC13892_REGULATORMODE1_VVIDEOMODE (1<<14) #define MC13892_REGULATORMODE1_VAUDIOEN (1<<15) #define MC13892_REGULATORMODE1_VAUDIOSTDBY (1<<16) #define MC13892_REGULATORMODE1_VAUDIOMODE (1<<17) #define MC13892_REGULATORMODE1_VSDEN (1<<18) #define MC13892_REGULATORMODE1_VSDSTDBY (1<<19) #define MC13892_REGULATORMODE1_VSDMODE (1<<20) #define MC13892_POWERMISC 34 #define MC13892_POWERMISC_GPO1EN (1<<6) #define MC13892_POWERMISC_GPO2EN (1<<8) #define MC13892_POWERMISC_GPO3EN (1<<10) #define MC13892_POWERMISC_GPO4EN (1<<12) #define MC13892_POWERMISC_PWGT1SPIEN (1<<15) #define MC13892_POWERMISC_PWGT2SPIEN (1<<16) #define MC13892_POWERMISC_GPO4ADINEN (1<<21) #define MC13892_POWERMISC_PWGTSPI_M (3 << 15) #define MC13892_USB1 50 #define MC13892_USB1_VUSBEN (1<<3) static const unsigned int mc13892_vcoincell[] = { 2500000, 2700000, 2800000, 2900000, 3000000, 3100000, 3200000, 3300000, }; static const unsigned int mc13892_sw1[] = { 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000 }; /* * Note: this table is used to derive SWxVSEL by index into * the array. Offset the values by the index of 1100000uV * to get the actual register value for that voltage selector * if the HI bit is to be set as well. */ #define MC13892_SWxHI_SEL_OFFSET 20 static const unsigned int mc13892_sw[] = { 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, 1525000, 1550000, 1575000, 1600000, 1625000, 1650000, 1675000, 1700000, 1725000, 1750000, 1775000, 1800000, 1825000, 1850000, 1875000 }; static const unsigned int mc13892_swbst[] = { 5000000, }; static const unsigned int mc13892_viohi[] = { 2775000, }; static const unsigned int mc13892_vpll[] = { 1050000, 1250000, 1650000, 1800000, }; static const unsigned int mc13892_vdig[] = { 1050000, 1250000, 1650000, 1800000, }; static const unsigned int mc13892_vsd[] = { 1800000, 2000000, 2600000, 2700000, 2800000, 2900000, 3000000, 3150000, }; static const unsigned int mc13892_vusb2[] = { 2400000, 2600000, 2700000, 2775000, }; static const unsigned int mc13892_vvideo[] = { 2700000, 2775000, 2500000, 2600000, }; static const unsigned int mc13892_vaudio[] = { 2300000, 2500000, 2775000, 3000000, }; static const unsigned int mc13892_vcam[] = { 2500000, 2600000, 2750000, 3000000, }; static const unsigned int mc13892_vgen1[] = { 1200000, 1500000, 2775000, 3150000, }; static const unsigned int mc13892_vgen2[] = { 1200000, 1500000, 1600000, 1800000, 2700000, 2800000, 3000000, 3150000, }; static const unsigned int mc13892_vgen3[] = { 1800000, 2900000, }; static const unsigned int mc13892_vusb[] = { 3300000, }; static const unsigned int mc13892_gpo[] = { 2750000, }; static const unsigned int mc13892_pwgtdrv[] = { 5000000, }; static const struct regulator_ops mc13892_gpo_regulator_ops; static const struct regulator_ops mc13892_sw_regulator_ops; #define MC13892_FIXED_DEFINE(name, node, reg, voltages) \ MC13xxx_FIXED_DEFINE(MC13892_, name, node, reg, voltages, \ mc13xxx_fixed_regulator_ops) #define MC13892_GPO_DEFINE(name, node, reg, voltages) \ MC13xxx_GPO_DEFINE(MC13892_, name, node, reg, voltages, \ mc13892_gpo_regulator_ops) #define MC13892_SW_DEFINE(name, node, reg, vsel_reg, voltages) \ MC13xxx_DEFINE(MC13892_, name, node, reg, vsel_reg, voltages, \ mc13892_sw_regulator_ops) #define MC13892_DEFINE_REGU(name, node, reg, vsel_reg, voltages) \ MC13xxx_DEFINE(MC13892_, name, node, reg, vsel_reg, voltages, \ mc13xxx_regulator_ops) static struct mc13xxx_regulator mc13892_regulators[] = { MC13892_DEFINE_REGU(VCOINCELL, vcoincell, POWERCTL0, POWERCTL0, mc13892_vcoincell), MC13892_SW_DEFINE(SW1, sw1, SWITCHERS0, SWITCHERS0, mc13892_sw1), MC13892_SW_DEFINE(SW2, sw2, SWITCHERS1, SWITCHERS1, mc13892_sw), MC13892_SW_DEFINE(SW3, sw3, SWITCHERS2, SWITCHERS2, mc13892_sw), MC13892_SW_DEFINE(SW4, sw4, SWITCHERS3, SWITCHERS3, mc13892_sw), MC13892_FIXED_DEFINE(SWBST, swbst, SWITCHERS5, mc13892_swbst), MC13892_FIXED_DEFINE(VIOHI, viohi, REGULATORMODE0, mc13892_viohi), MC13892_DEFINE_REGU(VPLL, vpll, REGULATORMODE0, REGULATORSETTING0, mc13892_vpll), MC13892_DEFINE_REGU(VDIG, vdig, REGULATORMODE0, REGULATORSETTING0, mc13892_vdig), MC13892_DEFINE_REGU(VSD, vsd, REGULATORMODE1, REGULATORSETTING1, mc13892_vsd), MC13892_DEFINE_REGU(VUSB2, vusb2, REGULATORMODE0, REGULATORSETTING0, mc13892_vusb2), MC13892_DEFINE_REGU(VVIDEO, vvideo, REGULATORMODE1, REGULATORSETTING1, mc13892_vvideo), MC13892_DEFINE_REGU(VAUDIO, vaudio, REGULATORMODE1, REGULATORSETTING1, mc13892_vaudio), MC13892_DEFINE_REGU(VCAM, vcam, REGULATORMODE1, REGULATORSETTING0, mc13892_vcam), MC13892_DEFINE_REGU(VGEN1, vgen1, REGULATORMODE0, REGULATORSETTING0, mc13892_vgen1), MC13892_DEFINE_REGU(VGEN2, vgen2, REGULATORMODE0, REGULATORSETTING0, mc13892_vgen2), MC13892_DEFINE_REGU(VGEN3, vgen3, REGULATORMODE1, REGULATORSETTING0, mc13892_vgen3), MC13892_FIXED_DEFINE(VUSB, vusb, USB1, mc13892_vusb), MC13892_GPO_DEFINE(GPO1, gpo1, POWERMISC, mc13892_gpo), MC13892_GPO_DEFINE(GPO2, gpo2, POWERMISC, mc13892_gpo), MC13892_GPO_DEFINE(GPO3, gpo3, POWERMISC, mc13892_gpo), MC13892_GPO_DEFINE(GPO4, gpo4, POWERMISC, mc13892_gpo), MC13892_GPO_DEFINE(PWGT1SPI, pwgt1spi, POWERMISC, mc13892_pwgtdrv), MC13892_GPO_DEFINE(PWGT2SPI, pwgt2spi, POWERMISC, mc13892_pwgtdrv), }; static int mc13892_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask, u32 val) { struct mc13xxx *mc13892 = priv->mc13xxx; int ret; u32 valread; BUG_ON(val & ~mask); mc13xxx_lock(priv->mc13xxx); ret = mc13xxx_reg_read(mc13892, MC13892_POWERMISC, &valread); if (ret) goto out; /* Update the stored state for Power Gates. */ priv->powermisc_pwgt_state = (priv->powermisc_pwgt_state & ~mask) | val; priv->powermisc_pwgt_state &= MC13892_POWERMISC_PWGTSPI_M; /* Construct the new register value */ valread = (valread & ~mask) | val; /* Overwrite the PWGTxEN with the stored version */ valread = (valread & ~MC13892_POWERMISC_PWGTSPI_M) | priv->powermisc_pwgt_state; ret = mc13xxx_reg_write(mc13892, MC13892_POWERMISC, valread); out: mc13xxx_unlock(priv->mc13xxx); return ret; } static int mc13892_gpo_regulator_enable(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); int id = rdev_get_id(rdev); u32 en_val = mc13892_regulators[id].enable_bit; u32 mask = mc13892_regulators[id].enable_bit; dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); /* Power Gate enable value is 0 */ if (id == MC13892_PWGT1SPI || id == MC13892_PWGT2SPI) en_val = 0; if (id == MC13892_GPO4) mask |= MC13892_POWERMISC_GPO4ADINEN; return mc13892_powermisc_rmw(priv, mask, en_val); } static int mc13892_gpo_regulator_disable(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); int id = rdev_get_id(rdev); u32 dis_val = 0; dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); /* Power Gate disable value is 1 */ if (id == MC13892_PWGT1SPI || id == MC13892_PWGT2SPI) dis_val = mc13892_regulators[id].enable_bit; return mc13892_powermisc_rmw(priv, mc13892_regulators[id].enable_bit, dis_val); } static int mc13892_gpo_regulator_is_enabled(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); int ret, id = rdev_get_id(rdev); unsigned int val; mc13xxx_lock(priv->mc13xxx); ret = mc13xxx_reg_read(priv->mc13xxx, mc13892_regulators[id].reg, &val); mc13xxx_unlock(priv->mc13xxx); if (ret) return ret; /* Power Gates state is stored in powermisc_pwgt_state * where the meaning of bits is negated */ val = (val & ~MC13892_POWERMISC_PWGTSPI_M) | (priv->powermisc_pwgt_state ^ MC13892_POWERMISC_PWGTSPI_M); return (val & mc13892_regulators[id].enable_bit) != 0; } static const struct regulator_ops mc13892_gpo_regulator_ops = { .enable = mc13892_gpo_regulator_enable, .disable = mc13892_gpo_regulator_disable, .is_enabled = mc13892_gpo_regulator_is_enabled, .list_voltage = regulator_list_voltage_table, .set_voltage = mc13xxx_fixed_regulator_set_voltage, }; static int mc13892_sw_regulator_get_voltage_sel(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); int ret, id = rdev_get_id(rdev); unsigned int val, selector; dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); mc13xxx_lock(priv->mc13xxx); ret = mc13xxx_reg_read(priv->mc13xxx, mc13892_regulators[id].vsel_reg, &val); mc13xxx_unlock(priv->mc13xxx); if (ret) return ret; /* * Figure out if the HI bit is set inside the switcher mode register * since this means the selector value we return is at a different * offset into the selector table. * * According to the MC13892 documentation note 59 (Table 47) the SW1 * buck switcher does not support output range programming therefore * the HI bit must always remain 0. So do not do anything strange if * our register is MC13892_SWITCHERS0. */ selector = val & mc13892_regulators[id].vsel_mask; if ((mc13892_regulators[id].vsel_reg != MC13892_SWITCHERS0) && (val & MC13892_SWITCHERS0_SWxHI)) { selector += MC13892_SWxHI_SEL_OFFSET; } dev_dbg(rdev_get_dev(rdev), "%s id: %d val: 0x%08x selector: %d\n", __func__, id, val, selector); return selector; } static int mc13892_sw_regulator_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); int volt, mask, id = rdev_get_id(rdev); u32 reg_value; int ret; volt = rdev->desc->volt_table[selector]; mask = mc13892_regulators[id].vsel_mask; reg_value = selector; /* * Don't mess with the HI bit or support HI voltage offsets for SW1. * * Since the get_voltage_sel callback has given a fudged value for * the selector offset, we need to back out that offset if HI is * to be set so we write the correct value to the register. * * The HI bit addition and selector offset handling COULD be more * complicated by shifting and masking off the voltage selector part * of the register then logical OR it back in, but since the selector * is at bits 4:0 there is very little point. This makes the whole * thing more readable and we do far less work. */ if (mc13892_regulators[id].vsel_reg != MC13892_SWITCHERS0) { mask |= MC13892_SWITCHERS0_SWxHI; if (volt > 1375000) { reg_value -= MC13892_SWxHI_SEL_OFFSET; reg_value |= MC13892_SWITCHERS0_SWxHI; } else { reg_value &= ~MC13892_SWITCHERS0_SWxHI; } } mc13xxx_lock(priv->mc13xxx); ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13892_regulators[id].vsel_reg, mask, reg_value); mc13xxx_unlock(priv->mc13xxx); return ret; } static const struct regulator_ops mc13892_sw_regulator_ops = { .list_voltage = regulator_list_voltage_table, .map_voltage = regulator_map_voltage_ascend, .set_voltage_sel = mc13892_sw_regulator_set_voltage_sel, .get_voltage_sel = mc13892_sw_regulator_get_voltage_sel, }; static int mc13892_vcam_set_mode(struct regulator_dev *rdev, unsigned int mode) { unsigned int en_val = 0; struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); int ret, id = rdev_get_id(rdev); if (mode == REGULATOR_MODE_FAST) en_val = MC13892_REGULATORMODE1_VCAMCONFIGEN; mc13xxx_lock(priv->mc13xxx); ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13892_regulators[id].reg, MC13892_REGULATORMODE1_VCAMCONFIGEN, en_val); mc13xxx_unlock(priv->mc13xxx); return ret; } static unsigned int mc13892_vcam_get_mode(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); int ret, id = rdev_get_id(rdev); unsigned int val; mc13xxx_lock(priv->mc13xxx); ret = mc13xxx_reg_read(priv->mc13xxx, mc13892_regulators[id].reg, &val); mc13xxx_unlock(priv->mc13xxx); if (ret) return ret; if (val & MC13892_REGULATORMODE1_VCAMCONFIGEN) return REGULATOR_MODE_FAST; return REGULATOR_MODE_NORMAL; } static struct regulator_ops mc13892_vcam_ops; static int mc13892_regulator_probe(struct platform_device *pdev) { struct mc13xxx_regulator_priv *priv; struct mc13xxx *mc13892 = dev_get_drvdata(pdev->dev.parent); struct mc13xxx_regulator_platform_data *pdata = dev_get_platdata(&pdev->dev); struct mc13xxx_regulator_init_data *mc13xxx_data; struct regulator_config config = { }; int i, ret; int num_regulators = 0; u32 val; num_regulators = mc13xxx_get_num_regulators_dt(pdev); if (num_regulators <= 0 && pdata) num_regulators = pdata->num_regulators; if (num_regulators <= 0) return -EINVAL; priv = devm_kzalloc(&pdev->dev, struct_size(priv, regulators, num_regulators), GFP_KERNEL); if (!priv) return -ENOMEM; priv->num_regulators = num_regulators; priv->mc13xxx_regulators = mc13892_regulators; priv->mc13xxx = mc13892; platform_set_drvdata(pdev, priv); mc13xxx_lock(mc13892); ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val); if (ret) goto err_unlock; /* enable switch auto mode (on 2.0A silicon only) */ if ((val & 0x0000FFFF) == 0x45d0) { ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS4, MC13892_SWITCHERS4_SW1MODE_M | MC13892_SWITCHERS4_SW2MODE_M, MC13892_SWITCHERS4_SW1MODE_AUTO | MC13892_SWITCHERS4_SW2MODE_AUTO); if (ret) goto err_unlock; ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS5, MC13892_SWITCHERS5_SW3MODE_M | MC13892_SWITCHERS5_SW4MODE_M, MC13892_SWITCHERS5_SW3MODE_AUTO | MC13892_SWITCHERS5_SW4MODE_AUTO); if (ret) goto err_unlock; } mc13xxx_unlock(mc13892); /* update mc13892_vcam ops */ memcpy(&mc13892_vcam_ops, mc13892_regulators[MC13892_VCAM].desc.ops, sizeof(struct regulator_ops)); mc13892_vcam_ops.set_mode = mc13892_vcam_set_mode; mc13892_vcam_ops.get_mode = mc13892_vcam_get_mode; mc13892_regulators[MC13892_VCAM].desc.ops = &mc13892_vcam_ops; mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators, ARRAY_SIZE(mc13892_regulators)); for (i = 0; i < priv->num_regulators; i++) { struct regulator_init_data *init_data; struct regulator_desc *desc; struct device_node *node = NULL; int id; if (mc13xxx_data) { id = mc13xxx_data[i].id; init_data = mc13xxx_data[i].init_data; node = mc13xxx_data[i].node; } else { id = pdata->regulators[i].id; init_data = pdata->regulators[i].init_data; } desc = &mc13892_regulators[id].desc; config.dev = &pdev->dev; config.init_data = init_data; config.driver_data = priv; config.of_node = node; priv->regulators[i] = devm_regulator_register(&pdev->dev, desc, &config); if (IS_ERR(priv->regulators[i])) { dev_err(&pdev->dev, "failed to register regulator %s\n", mc13892_regulators[i].desc.name); return PTR_ERR(priv->regulators[i]); } } return 0; err_unlock: mc13xxx_unlock(mc13892); return ret; } static struct platform_driver mc13892_regulator_driver = { .driver = { .name = "mc13892-regulator", .probe_type = PROBE_PREFER_ASYNCHRONOUS, }, .probe = mc13892_regulator_probe, }; static int __init mc13892_regulator_init(void) { return platform_driver_register(&mc13892_regulator_driver); } subsys_initcall(mc13892_regulator_init); static void __exit mc13892_regulator_exit(void) { platform_driver_unregister(&mc13892_regulator_driver); } module_exit(mc13892_regulator_exit); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Yong Shen <yong.shen@linaro.org>"); MODULE_DESCRIPTION("Regulator Driver for Freescale MC13892 PMIC"); MODULE_ALIAS("platform:mc13892-regulator");
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