diff options
Diffstat (limited to 'driver/ioexpander/tca64xxa.c')
| -rw-r--r-- | driver/ioexpander/tca64xxa.c | 63 |
1 files changed, 29 insertions, 34 deletions
diff --git a/driver/ioexpander/tca64xxa.c b/driver/ioexpander/tca64xxa.c index b44dd7a686..b1b0d2dd09 100644 --- a/driver/ioexpander/tca64xxa.c +++ b/driver/ioexpander/tca64xxa.c @@ -1,4 +1,4 @@ -/* Copyright 2021 The Chromium OS Authors. All rights reserved. +/* Copyright 2021 The ChromiumOS Authors * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ @@ -19,32 +19,33 @@ * must multiply them by 4. Flags value contains information which version * of chip is used. */ -#define TCA64XXA_PORT_ID(port, reg, flags) \ - ((((flags) & TCA64XXA_FLAG_VER_MASK) \ - >> TCA64XXA_FLAG_VER_OFFSET) * (reg) + (port)) +#define TCA64XXA_PORT_ID(port, reg, flags) \ + ((((flags)&TCA64XXA_FLAG_VER_MASK) >> TCA64XXA_FLAG_VER_OFFSET) * \ + (reg) + \ + (port)) static int tca64xxa_write_byte(int ioex, int port, int reg, uint8_t val) { const struct ioexpander_config_t *ioex_p = &ioex_config[ioex]; - const int reg_addr = TCA64XXA_PORT_ID(port, reg, - (ioex_p->flags & IOEX_FLAGS_TCA64XXA_FLAG_VER_TCA6416A) ? 2:4); + const int reg_addr = TCA64XXA_PORT_ID( + port, reg, + (ioex_p->flags & IOEX_FLAGS_TCA64XXA_FLAG_VER_TCA6416A) ? 2 : + 4); - return i2c_write8(ioex_p->i2c_host_port, - ioex_p->i2c_addr_flags, - reg_addr, - val); + return i2c_write8(ioex_p->i2c_host_port, ioex_p->i2c_addr_flags, + reg_addr, val); } static int tca64xxa_read_byte(int ioex, int port, int reg, int *val) { const struct ioexpander_config_t *ioex_p = &ioex_config[ioex]; - const int reg_addr = TCA64XXA_PORT_ID(port, reg, - (ioex_p->flags & IOEX_FLAGS_TCA64XXA_FLAG_VER_TCA6416A) ? 2:4); + const int reg_addr = TCA64XXA_PORT_ID( + port, reg, + (ioex_p->flags & IOEX_FLAGS_TCA64XXA_FLAG_VER_TCA6416A) ? 2 : + 4); - return i2c_read8(ioex_p->i2c_host_port, - ioex_p->i2c_addr_flags, - reg_addr, - val); + return i2c_read8(ioex_p->i2c_host_port, ioex_p->i2c_addr_flags, + reg_addr, val); } /* Restore default values in registers */ @@ -59,23 +60,17 @@ static int tca64xxa_reset(int ioex, int portsCount) * This loop sets default values (from specification) to all registers. */ for (port = 0; port < portsCount; port++) { - ret = tca64xxa_write_byte(ioex, - port, - TCA64XXA_REG_OUTPUT, + ret = tca64xxa_write_byte(ioex, port, TCA64XXA_REG_OUTPUT, TCA64XXA_DEFAULT_OUTPUT); if (ret) return ret; - ret = tca64xxa_write_byte(ioex, - port, - TCA64XXA_REG_POLARITY_INV, + ret = tca64xxa_write_byte(ioex, port, TCA64XXA_REG_POLARITY_INV, TCA64XXA_DEFAULT_POLARITY_INV); if (ret) return ret; - ret = tca64xxa_write_byte(ioex, - port, - TCA64XXA_REG_CONF, + ret = tca64xxa_write_byte(ioex, port, TCA64XXA_REG_CONF, TCA64XXA_DEFAULT_CONF); if (ret) return ret; @@ -150,7 +145,7 @@ static int tca64xxa_get_flags_by_mask(int ioex, int port, int mask, int *flags) *flags |= GPIO_OUTPUT; ret = tca64xxa_read_byte(ioex, port, TCA64XXA_REG_OUTPUT, &v); - if(ret) + if (ret) return ret; if (v & mask) @@ -188,7 +183,7 @@ static int tca64xxa_set_flags_by_mask(int ioex, int port, int mask, int flags) /* Configuration */ ret = tca64xxa_read_byte(ioex, port, TCA64XXA_REG_CONF, &v); - if(ret) + if (ret) return ret; if (flags & GPIO_INPUT) @@ -217,13 +212,13 @@ static int tca64xxa_get_port(int ioex, int port, int *val) /* Driver structure */ const struct ioexpander_drv tca64xxa_ioexpander_drv = { - .init = tca64xxa_init, - .get_level = tca64xxa_get_level, - .set_level = tca64xxa_set_level, - .get_flags_by_mask = tca64xxa_get_flags_by_mask, - .set_flags_by_mask = tca64xxa_set_flags_by_mask, - .enable_interrupt = NULL, + .init = tca64xxa_init, + .get_level = tca64xxa_get_level, + .set_level = tca64xxa_set_level, + .get_flags_by_mask = tca64xxa_get_flags_by_mask, + .set_flags_by_mask = tca64xxa_set_flags_by_mask, + .enable_interrupt = NULL, #ifdef CONFIG_IO_EXPANDER_SUPPORT_GET_PORT - .get_port = tca64xxa_get_port, + .get_port = tca64xxa_get_port, #endif }; |