'-1' is absolutely meaningless value. This patch changed from meaningless value to error number.

Signed-off-by: Jaehoon Chung jh80.chung@samsung.com --- Changelog on V2 - Fixes the missing error number in exynos-tmu.c

drivers/power/axp152.c | 2 +- drivers/power/axp209.c | 2 +- drivers/power/battery/bat_trats2.c | 2 +- drivers/power/exynos-tmu.c | 8 ++++---- drivers/power/fuel_gauge/fg_max17042.c | 4 ++-- drivers/power/mfd/fg_max77693.c | 4 ++-- drivers/power/mfd/pmic_max77693.c | 8 ++++---- drivers/power/palmas.c | 11 +++++++---- drivers/power/pmic/pmic_hi6553.c | 4 ++-- drivers/power/pmic/pmic_max77686.c | 18 +++++++++--------- drivers/power/pmic/pmic_max8997.c | 8 ++++---- drivers/power/power_core.c | 8 ++++---- drivers/power/power_i2c.c | 22 +++++++++++----------- drivers/power/power_spi.c | 18 ++++++------------ drivers/power/tps6586x.c | 12 ++++++------ 15 files changed, 64 insertions(+), 67 deletions(-)

diff --git a/drivers/power/axp152.c b/drivers/power/axp152.c index cd07275..c4b3fe5 100644 --- a/drivers/power/axp152.c +++ b/drivers/power/axp152.c @@ -75,7 +75,7 @@ int axp_init(void) return rc;

if (ver != 0x05) - return -1; + return -EINVAL;

return 0; } diff --git a/drivers/power/axp209.c b/drivers/power/axp209.c index 731b75e..4b25ef2 100644 --- a/drivers/power/axp209.c +++ b/drivers/power/axp209.c @@ -158,7 +158,7 @@ int axp_init(void) ver &= 0x0f;

if (ver != 0x1) - return -1; + return -EINVAL;

/* Mask all interrupts */ for (i = AXP209_IRQ_ENABLE1; i <= AXP209_IRQ_ENABLE5; i++) { diff --git a/drivers/power/battery/bat_trats2.c b/drivers/power/battery/bat_trats2.c index 57221ad..6329e02 100644 --- a/drivers/power/battery/bat_trats2.c +++ b/drivers/power/battery/bat_trats2.c @@ -18,7 +18,7 @@ static int power_battery_charge(struct pmic *bat) struct power_battery *p_bat = bat->pbat;

if (bat->chrg->chrg_state(p_bat->chrg, PMIC_CHARGER_ENABLE, 450)) - return -1; + return -EINVAL;

return 0; } diff --git a/drivers/power/exynos-tmu.c b/drivers/power/exynos-tmu.c index b9968c2..6a66267 100644 --- a/drivers/power/exynos-tmu.c +++ b/drivers/power/exynos-tmu.c @@ -190,7 +190,7 @@ static int get_tmu_fdt_values(struct tmu_info *info, const void *blob) COMPAT_SAMSUNG_EXYNOS_TMU); if (node < 0) { debug("EXYNOS_TMU: No node for tmu in device tree\n"); - return -1; + return -ENODEV; }

/* @@ -202,7 +202,7 @@ static int get_tmu_fdt_values(struct tmu_info *info, const void *blob) addr = fdtdec_get_addr(blob, node, "reg"); if (addr == FDT_ADDR_T_NONE) { debug("%s: Missing tmu-base\n", __func__); - return -1; + return -ENODEV; } info->tmu_base = (struct exynos5_tmu_reg *)addr;

@@ -246,11 +246,11 @@ static int get_tmu_fdt_values(struct tmu_info *info, const void *blob)

if (error) { debug("fail to get tmu node properties\n"); - return -1; + return -EINVAL; } #else /* Non DT support may never be added. Just in case */ - return -1; + return -ENODEV; #endif

return 0; diff --git a/drivers/power/fuel_gauge/fg_max17042.c b/drivers/power/fuel_gauge/fg_max17042.c index 154ca6a..e433494 100644 --- a/drivers/power/fuel_gauge/fg_max17042.c +++ b/drivers/power/fuel_gauge/fg_max17042.c @@ -199,7 +199,7 @@ static int power_update_battery(struct pmic *p, struct pmic *bat)

if (pmic_probe(p)) { puts("Can't find max17042 fuel gauge\n"); - return -1; + return -ENODEV; }

ret |= pmic_reg_read(p, MAX17042_VFSOC, &val); @@ -224,7 +224,7 @@ static int power_check_battery(struct pmic *p, struct pmic *bat)

if (pmic_probe(p)) { puts("Can't find max17042 fuel gauge\n"); - return -1; + return -ENODEV; }

ret |= pmic_reg_read(p, MAX17042_STATUS, &val); diff --git a/drivers/power/mfd/fg_max77693.c b/drivers/power/mfd/fg_max77693.c index 4519fed..df15508 100644 --- a/drivers/power/mfd/fg_max77693.c +++ b/drivers/power/mfd/fg_max77693.c @@ -52,7 +52,7 @@ static int power_update_battery(struct pmic *p, struct pmic *bat)

if (pmic_probe(p)) { puts("Can't find max77693 fuel gauge\n"); - return -1; + return -ENODEV; }

ret = max77693_get_soc(&pb->bat->state_of_chrg); @@ -74,7 +74,7 @@ static int power_check_battery(struct pmic *p, struct pmic *bat)

if (pmic_probe(p)) { puts("Can't find max77693 fuel gauge\n"); - return -1; + return -ENODEV; }

ret = pmic_reg_read(p, MAX77693_STATUS, &val); diff --git a/drivers/power/mfd/pmic_max77693.c b/drivers/power/mfd/pmic_max77693.c index 6b28e28..c63390e 100644 --- a/drivers/power/mfd/pmic_max77693.c +++ b/drivers/power/mfd/pmic_max77693.c @@ -16,7 +16,7 @@ static int max77693_charger_state(struct pmic *p, int state, int current) unsigned int val;

if (pmic_probe(p)) - return -1; + return -ENODEV;

/* unlock write capability */ val = MAX77693_CHG_UNLOCK; @@ -27,13 +27,13 @@ static int max77693_charger_state(struct pmic *p, int state, int current) pmic_reg_read(p, MAX77693_CHG_CNFG_00, &val); val &= ~0x01; pmic_reg_write(p, MAX77693_CHG_CNFG_00, val); - return -1; + return -ENOTSUPP; }

if (current < CHARGER_MIN_CURRENT || current > CHARGER_MAX_CURRENT) { printf("%s: Wrong charge current: %d [mA]\n", __func__, current); - return -1; + return -EINVAL; }

/* set charging current */ @@ -59,7 +59,7 @@ static int max77693_charger_bat_present(struct pmic *p) unsigned int val;

if (pmic_probe(p)) - return -1; + return -ENODEV;

pmic_reg_read(p, MAX77693_CHG_INT_OK, &val);

diff --git a/drivers/power/palmas.c b/drivers/power/palmas.c index 4f9a62c..c813b21 100644 --- a/drivers/power/palmas.c +++ b/drivers/power/palmas.c @@ -47,20 +47,23 @@ int palmas_mmc1_poweron_ldo(uint voltage) u8 val = 0;

#if defined(CONFIG_DRA7XX) + int ret; /* * 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)) { + ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_VOLTAGE, val); + if (ret) { printf("tps65903x: could not set LDO1 voltage.\n"); - return 1; + return ret; } /* TURN ON LDO1 */ val = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; - if (palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_CTRL, val)) { + ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_CTRL, val); + if (ret) { printf("tps65903x: could not turn on LDO1.\n"); - return 1; + return ret; } return 0; #else diff --git a/drivers/power/pmic/pmic_hi6553.c b/drivers/power/pmic/pmic_hi6553.c index 0af7987..b2346b6 100644 --- a/drivers/power/pmic/pmic_hi6553.c +++ b/drivers/power/pmic/pmic_hi6553.c @@ -26,7 +26,7 @@ void hi6553_writeb(u32 offset, uint8_t value) int pmic_reg_write(struct pmic *p, u32 reg, u32 val) { if (check_reg(p, reg)) - return -1; + return -EINVAL;

hi6553_writeb(reg, (uint8_t)val);

@@ -36,7 +36,7 @@ int pmic_reg_write(struct pmic *p, u32 reg, u32 val) int pmic_reg_read(struct pmic *p, u32 reg, u32 *val) { if (check_reg(p, reg)) - return -1; + return -EINVAL;

*val = (u32)hi6553_readb(reg);

diff --git a/drivers/power/pmic/pmic_max77686.c b/drivers/power/pmic/pmic_max77686.c index 93c8d2b..8e65331 100644 --- a/drivers/power/pmic/pmic_max77686.c +++ b/drivers/power/pmic/pmic_max77686.c @@ -67,14 +67,14 @@ int max77686_set_ldo_voltage(struct pmic *p, int ldo, ulong uV)

if (ldo < 1 || ldo > 26) { printf("%s: %d is wrong ldo number\n", __func__, ldo); - return -1; + return -EINVAL; }

adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1; hex = max77686_ldo_volt2hex(ldo, uV);

if (!hex) - return -1; + return -EINVAL;

ret = pmic_reg_read(p, adr, &val); if (ret) @@ -120,7 +120,7 @@ int max77686_set_ldo_mode(struct pmic *p, int ldo, char opmode)

if (ldo < 1 || 26 < ldo) { printf("%s: %d is wrong ldo number\n", __func__, ldo); - return -1; + return -EINVAL; }

adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1; @@ -161,7 +161,7 @@ int max77686_set_ldo_mode(struct pmic *p, int ldo, char opmode) if (mode == 0xff) { printf("%s: %d is not supported on LDO%d\n", __func__, opmode, ldo); - return -1; + return -ENOTSUPP; }

ret = pmic_reg_read(p, adr, &val); @@ -182,7 +182,7 @@ int max77686_set_buck_mode(struct pmic *p, int buck, char opmode) size = ARRAY_SIZE(max77686_buck_addr); if (buck >= size) { printf("%s: %d is wrong buck number\n", __func__, buck); - return -1; + return -EINVAL; }

adr = max77686_buck_addr[buck]; @@ -238,7 +238,7 @@ int max77686_set_buck_mode(struct pmic *p, int buck, char opmode) if (mode == 0xff) { printf("%s: %d is not supported on BUCK%d\n", __func__, opmode, buck); - return -1; + return -ENOTSUPP; }

ret = pmic_reg_read(p, adr, &val); @@ -271,20 +271,20 @@ int pmic_init(unsigned char bus) if (node < 0) { debug("PMIC: No node for PMIC Chip in device tree\n"); debug("node = %d\n", node); - return -1; + return -ENODEV; }

parent = fdt_parent_offset(blob, node); if (parent < 0) { debug("%s: Cannot find node parent\n", __func__); - return -1; + return -ENODEV; }

/* tmp since p->bus is unsigned */ tmp = i2c_get_bus_num_fdt(parent); if (tmp < 0) { debug("%s: Cannot find I2C bus\n", __func__); - return -1; + return -ENODEV; } p->bus = tmp; p->hw.i2c.addr = fdtdec_get_int(blob, node, "reg", 9); diff --git a/drivers/power/pmic/pmic_max8997.c b/drivers/power/pmic/pmic_max8997.c index a36a9a0..32afb3f 100644 --- a/drivers/power/pmic/pmic_max8997.c +++ b/drivers/power/pmic/pmic_max8997.c @@ -33,7 +33,7 @@ static int pmic_charger_state(struct pmic *p, int state, int current) u32 val = 0;

if (pmic_probe(p)) - return -1; + return -ENODEV;

if (state == PMIC_CHARGER_DISABLE) { puts("Disable the charger.\n"); @@ -41,13 +41,13 @@ static int pmic_charger_state(struct pmic *p, int state, int current) val &= ~(MBCHOSTEN | VCHGR_FC); pmic_reg_write(p, MAX8997_REG_MBCCTRL2, val);

- return -1; + return -ENOTSUPP; }

if (current < CHARGER_MIN_CURRENT || current > CHARGER_MAX_CURRENT) { printf("%s: Wrong charge current: %d [mA]\n", __func__, current); - return -1; + return -EINVAL; }

fc = (current - CHARGER_MIN_CURRENT) / CHARGER_CURRENT_RESOLUTION; @@ -71,7 +71,7 @@ static int pmic_charger_bat_present(struct pmic *p) u32 val;

if (pmic_probe(p)) - return -1; + return -ENODEV;

pmic_reg_read(p, MAX8997_REG_STATUS4, &val);

diff --git a/drivers/power/power_core.c b/drivers/power/power_core.c index fe1f316..b72286d 100644 --- a/drivers/power/power_core.c +++ b/drivers/power/power_core.c @@ -23,7 +23,7 @@ int check_reg(struct pmic *p, u32 reg) if (reg >= p->number_of_regs) { printf("<reg num> = %d is invalid. Should be less than %d\n", reg, p->number_of_regs); - return -1; + return -EINVAL; }

return 0; @@ -34,7 +34,7 @@ int pmic_set_output(struct pmic *p, u32 reg, int out, int on) u32 val;

if (pmic_reg_read(p, reg, &val)) - return -1; + return -ENOTSUPP;

if (on) val |= out; @@ -42,7 +42,7 @@ int pmic_set_output(struct pmic *p, u32 reg, int out, int on) val &= ~out;

if (pmic_reg_write(p, reg, val)) - return -1; + return -ENOTSUPP;

return 0; } @@ -59,7 +59,7 @@ static int pmic_dump(struct pmic *p)

if (!p) { puts("Wrong PMIC name!\n"); - return -1; + return -ENODEV; }

pmic_show_info(p); diff --git a/drivers/power/power_i2c.c b/drivers/power/power_i2c.c index 0dcf9fe..dd22ece 100644 --- a/drivers/power/power_i2c.c +++ b/drivers/power/power_i2c.c @@ -19,9 +19,10 @@ int pmic_reg_write(struct pmic *p, u32 reg, u32 val) { unsigned char buf[4] = { 0 }; + int ret;

if (check_reg(p, reg)) - return -1; + return -EINVAL;

I2C_SET_BUS(p->bus);

@@ -51,27 +52,26 @@ int pmic_reg_write(struct pmic *p, u32 reg, u32 val) break; default: printf("%s: invalid tx_num: %d", __func__, pmic_i2c_tx_num); - return -1; + return -EINVAL; }

- if (i2c_write(pmic_i2c_addr, reg, 1, buf, pmic_i2c_tx_num)) - return -1; - - return 0; + return i2c_write(pmic_i2c_addr, reg, 1, buf, pmic_i2c_tx_num); }

int pmic_reg_read(struct pmic *p, u32 reg, u32 *val) { unsigned char buf[4] = { 0 }; u32 ret_val = 0; + int ret;

if (check_reg(p, reg)) - return -1; + return -EINVAL;

I2C_SET_BUS(p->bus);

- if (i2c_read(pmic_i2c_addr, reg, 1, buf, pmic_i2c_tx_num)) - return -1; + ret = i2c_read(pmic_i2c_addr, reg, 1, buf, pmic_i2c_tx_num); + if (ret) + return ret;

switch (pmic_i2c_tx_num) { case 3: @@ -93,7 +93,7 @@ int pmic_reg_read(struct pmic *p, u32 reg, u32 *val) break; default: printf("%s: invalid tx_num: %d", __func__, pmic_i2c_tx_num); - return -1; + return -EINVAL; } memcpy(val, &ret_val, sizeof(ret_val));

@@ -106,7 +106,7 @@ int pmic_probe(struct pmic *p) debug("Bus: %d PMIC:%s probed!\n", p->bus, p->name); if (i2c_probe(pmic_i2c_addr)) { printf("Can't find PMIC:%s\n", p->name); - return -1; + return -ENODEV; }

return 0; diff --git a/drivers/power/power_spi.c b/drivers/power/power_spi.c index 1e55446..ef8531d 100644 --- a/drivers/power/power_spi.c +++ b/drivers/power/power_spi.c @@ -27,14 +27,14 @@ static u32 pmic_reg(struct pmic *p, u32 reg, u32 *val, u32 write) p->hw.spi.mode);

if (!slave) - return -1; + return -ENODEV; }

if (check_reg(p, reg)) - return -1; + return -EINVAL;

if (spi_claim_bus(slave)) - return -1; + return -EBUSY;

pmic_tx = p->hw.spi.prepare_tx(reg, val, write);

@@ -59,21 +59,15 @@ static u32 pmic_reg(struct pmic *p, u32 reg, u32 *val, u32 write)

err: spi_release_bus(slave); - return -1; + return -ENOTSUPP; }

int pmic_reg_write(struct pmic *p, u32 reg, u32 val) { - if (pmic_reg(p, reg, &val, 1)) - return -1; - - return 0; + return pmic_reg(p, reg, &val, 1); }

int pmic_reg_read(struct pmic *p, u32 reg, u32 *val) { - if (pmic_reg(p, reg, val, 0)) - return -1; - - return 0; + return pmic_reg(p, reg, val, 0); } diff --git a/drivers/power/tps6586x.c b/drivers/power/tps6586x.c index 8650983..f50c4d1 100644 --- a/drivers/power/tps6586x.c +++ b/drivers/power/tps6586x.c @@ -97,14 +97,14 @@ static int read_voltages(int *sm0, int *sm1) ctrl1 = tps6586x_read(SUPPLY_CONTROL1); ctrl2 = tps6586x_read(SUPPLY_CONTROL2); if (ctrl1 == -1 || ctrl2 == -1) - return -1; + return -ENOTSUPP;

/* Figure out whether V1 or V2 is selected */ is_v2 = (ctrl1 | ctrl2) & CTRL_SM0_SUPPLY2; *sm0 = tps6586x_read(is_v2 ? SM0_VOLTAGE_V2 : SM0_VOLTAGE_V1); *sm1 = tps6586x_read(is_v2 ? SM1_VOLTAGE_V2 : SM1_VOLTAGE_V1); if (*sm0 == -1 || *sm1 == -1) - return -1; + return -ENOTSUPP;

return 0; } @@ -129,7 +129,7 @@ static int set_voltage(int reg, int data, int rate) /* write v1, v2 and rate, then trigger */ if (tps6586x_write(reg, buff, 3) || tps6586x_write(SUPPLY_CONTROL1, &control_bit, 1)) - return -1; + return -ENOTSUPP;

return 0; } @@ -177,7 +177,7 @@ int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate, /* get current voltage settings */ if (read_voltages(&sm0, &sm1)) { debug("%s: Cannot read voltage settings\n", __func__); - return -1; + return -EINVAL; }

/* @@ -189,7 +189,7 @@ int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate, if (min_sm0_over_sm1 != -1 && sm0 < sm1 + min_sm0_over_sm1) { debug("%s: SM0 is %d, SM1 is %d, but min_sm0_over_sm1 is %d\n", __func__, sm0, sm1, min_sm0_over_sm1); - return -1; + return -EINVAL; }

/* @@ -240,7 +240,7 @@ int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate, } debug("%d-%d %d-%d done\n", sm0, sm0_target, sm1, sm1_target);

- return bad ? -1 : 0; + return bad ? -EINVAL : 0; }

int tps6586x_init(struct udevice *dev)