X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=drivers%2Fpower%2Fpalmas.c;h=6430fe004d57af8509538f6fec9713f0c8e3ee4a;hb=9b416a9f4ca7cf5ac4d5f7143d67edde7f7d7326;hp=bf36a19aa1e7a7c6fd059652c675ea7baeaa1d82;hpb=12733881e94018f9a9b0cdb72c7ab55638142220;p=karo-tx-uboot.git diff --git a/drivers/power/palmas.c b/drivers/power/palmas.c index bf36a19aa1..6430fe004d 100644 --- a/drivers/power/palmas.c +++ b/drivers/power/palmas.c @@ -2,73 +2,159 @@ * (C) Copyright 2012-2013 * Texas Instruments, * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ #include #include -/* Functions to read and write from TWL6030 */ -int twl6035_i2c_write_u8(u8 chip_no, u8 val, u8 reg) +void palmas_init_settings(void) { - return i2c_write(chip_no, reg, 1, &val, 1); +#ifdef CONFIG_PALMAS_SMPS7_FPWM + int err; + /* + * Set SMPS7 (1.8 V I/O supply on platforms with TWL6035/37) to + * forced PWM mode. This reduces noise (but affects efficiency). + */ + u8 val = SMPS_MODE_SLP_FPWM | SMPS_MODE_ACT_FPWM; + err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS7_CTRL, val); + if (err) + printf("palmas: could not force PWM for SMPS7: err = %d\n", + err); +#endif } -int twl6035_i2c_read_u8(u8 chip_no, u8 *val, u8 reg) +int palmas_mmc1_poweron_ldo(void) { - return i2c_read(chip_no, reg, 1, val, 1); -} + u8 val = 0; -/* To align with i2c mw/mr address, reg, val command syntax */ -static inline int palmas_write_u8(u8 chip_no, u8 reg, u8 val) -{ - return i2c_write(chip_no, reg, 1, &val, 1); +#if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX) + /* + * Currently valid for the dra7xx_evm board: + * Set TPS659038 LDO1 to 3.0 V + */ + val = LDO_VOLT_3V0; + if (palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_VOLTAGE, val)) { + printf("tps65903x: could not set LDO1 voltage.\n"); + return 1; + } + /* TURN ON LDO1 */ + val = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; + if (palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_CTRL, val)) { + printf("tps65903x: could not turn on LDO1.\n"); + return 1; + } + return 0; +#else + /* + * We assume that this is a OMAP543X + TWL603X board: + * Set TWL6035/37 LDO9 to 3.0 V + */ + val = LDO_VOLT_3V0; + return twl603x_mmc1_set_ldo9(val); +#endif } -static inline int palmas_read_u8(u8 chip_no, u8 reg, u8 *val) +/* + * On some OMAP5 + TWL603X hardware the SD card socket and LDO9_IN are + * powered by an external 3.3 V regulator, while the output of LDO9 + * supplies VDDS_SDCARD for the OMAP5 interface only. This implies that + * LDO9 could be set to 'bypass' mode when required (e.g. for 3.3 V cards). + */ +int twl603x_mmc1_set_ldo9(u8 vsel) { - return i2c_read(chip_no, reg, 1, val, 1); -} + u8 cval = 0, vval = 0; /* Off by default */ + int err; -void palmas_init_settings(void) -{ - return; + if (vsel) { + /* Turn on */ + if (vsel > LDO_VOLT_3V3) { + /* Put LDO9 in bypass */ + cval = LDO9_BYP_EN | RSC_MODE_SLEEP | RSC_MODE_ACTIVE; + vval = LDO_VOLT_3V3; + } else { + cval = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; + vval = vsel & 0x3f; + } + } + err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_VOLTAGE, vval); + if (err) { + printf("twl603x: could not set LDO9 %s: err = %d\n", + vsel > LDO_VOLT_3V3 ? "bypass" : "voltage", err); + return err; + } + err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_CTRL, cval); + if (err) + printf("twl603x: could not turn %s LDO9: err = %d\n", + cval ? "on" : "off", err); + return err; } -int twl6035_mmc1_poweron_ldo(void) +#ifdef CONFIG_PALMAS_AUDPWR +/* + * Turn audio codec power and 32 kHz clock on/off. Use for + * testing OMAP543X + TWL603X + TWL604X boards only. + */ +int twl603x_audio_power(u8 on) { - u8 val = 0; + u8 cval = 0, vval = 0, c32k = 0; + int err; - /* set LDO9 TWL6035 to 3V */ - val = 0x2b; /* (3 -.9)*28 +1 */ - - if (palmas_write_u8(0x48, LDO9_VOLTAGE, val)) { - printf("twl6035: could not set LDO9 voltage.\n"); - return 1; + if (on) { + vval = SMPS_VOLT_2V1; + cval = SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO; + c32k = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; } + /* Set SMPS9 to 2.1 V (for TWL604x), or to 0 (off) */ + err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_VOLTAGE, vval); + if (err) { + printf("twl603x: could not set SMPS9 voltage: err = %d\n", + err); + return err; + } + /* Turn on or off SMPS9 */ + err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_CTRL, cval); + if (err) { + printf("twl603x: could not turn SMPS9 %s: err = %d\n", + cval ? "on" : "off", err); + return err; + } + /* Output 32 kHz clock on or off */ + err = palmas_i2c_write_u8(TWL603X_CHIP_P1, CLK32KGAUDIO_CTRL, c32k); + if (err) + printf("twl603x: could not turn CLK32KGAUDIO %s: err = %d\n", + c32k ? "on" : "off", err); + return err; +} +#endif - /* TURN ON LDO9 */ - val = LDO_ON | LDO_MODE_SLEEP | LDO_MODE_ACTIVE; +#ifdef CONFIG_PALMAS_USB_SS_PWR +/** + * @brief palmas_enable_ss_ldo - Configure EVM board specific configurations + * for the USB Super speed SMPS10 regulator. + * + * @return 0 + */ +int palmas_enable_ss_ldo(void) +{ + /* Enable smps10 regulator */ + return palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS10_CTRL, + SMPS10_MODE_ACTIVE_D); +} +#endif - if (palmas_write_u8(0x48, LDO9_CTRL, val)) { - printf("twl6035: could not turn on LDO9.\n"); - return 1; - } +/* + * Enable/disable back-up battery (or super cap) charging on TWL6035/37. + * Please use defined BB_xxx values. + */ +int twl603x_enable_bb_charge(u8 bb_fields) +{ + u8 val = bb_fields & 0x0f; + int err; - return 0; + val |= (VRTC_EN_SLP | VRTC_EN_OFF | VRTC_PWEN); + err = palmas_i2c_write_u8(TWL603X_CHIP_P1, BB_VRTC_CTRL, val); + if (err) + printf("twl603x: could not set BB_VRTC_CTRL to 0x%02x: err = %d\n", + val, err); + return err; }