diff options
| author | Felix Held <felix-coreboot@felixheld.de> | 2022-01-31 15:56:14 +0100 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-02-02 18:04:20 +0000 |
| commit | 7edf910d79cfefb45d4e8e0c770007c8663bb991 (patch) | |
| tree | aa4b42f037d0425bfc73810f9a46ef90a45a6aed /src/drivers/i2c/designware | |
| parent | 7a3c416ebd21a1851f3f755d752473d532e2714f (diff) | |
drivers/i2c/designware/dw_i2c: use cb_err for dw_i2c_gen_speed_config
Using enum cb_err as return type instead of int improves the readability
of the code.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I8d96e5f72a8b3552ab39c1d298bafcc224bf9e55
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61512
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/drivers/i2c/designware')
| -rw-r--r-- | src/drivers/i2c/designware/dw_i2c.c | 11 | ||||
| -rw-r--r-- | src/drivers/i2c/designware/dw_i2c.h | 5 |
2 files changed, 6 insertions, 10 deletions
diff --git a/src/drivers/i2c/designware/dw_i2c.c b/src/drivers/i2c/designware/dw_i2c.c index bfb5971684..2a7c6fcc33 100644 --- a/src/drivers/i2c/designware/dw_i2c.c +++ b/src/drivers/i2c/designware/dw_i2c.c @@ -615,7 +615,7 @@ static enum cb_err dw_i2c_gen_config_rise_fall_time(struct dw_i2c_regs *regs, return CB_SUCCESS; } -int dw_i2c_gen_speed_config(uintptr_t dw_i2c_addr, +enum cb_err dw_i2c_gen_speed_config(uintptr_t dw_i2c_addr, enum i2c_speed speed, const struct dw_i2c_bus_config *bcfg, struct dw_i2c_speed_config *config) @@ -634,12 +634,11 @@ int dw_i2c_gen_speed_config(uintptr_t dw_i2c_addr, if (bcfg->speed_config[i].speed != speed) continue; memcpy(config, &bcfg->speed_config[i], sizeof(*config)); - return 0; + return CB_SUCCESS; } /* Use the time calculation. */ - return dw_i2c_gen_config_rise_fall_time(regs, speed, bcfg, ic_clk, config) == - CB_SUCCESS ? 0 : -1; + return dw_i2c_gen_config_rise_fall_time(regs, speed, bcfg, ic_clk, config); } static enum cb_err dw_i2c_set_speed(unsigned int bus, enum i2c_speed speed, @@ -669,7 +668,7 @@ static enum cb_err dw_i2c_set_speed(unsigned int bus, enum i2c_speed speed, } /* Generate speed config based on clock */ - if (dw_i2c_gen_speed_config((uintptr_t)regs, speed, bcfg, &config) < 0) + if (dw_i2c_gen_speed_config((uintptr_t)regs, speed, bcfg, &config) != CB_SUCCESS) return CB_ERR; /* Select this speed in the control register */ @@ -830,7 +829,7 @@ void dw_i2c_acpi_fill_ssdt(const struct device *dev) /* Report currently used timing values for the OS driver */ acpigen_write_scope(path); - if (dw_i2c_gen_speed_config(dw_i2c_addr, speed, bcfg, &sgen) >= 0) { + if (dw_i2c_gen_speed_config(dw_i2c_addr, speed, bcfg, &sgen) == CB_SUCCESS) { dw_i2c_acpi_write_speed_config(&sgen); } /* Now check if there are more speed settings available and report them as well. */ diff --git a/src/drivers/i2c/designware/dw_i2c.h b/src/drivers/i2c/designware/dw_i2c.h index 3d8e66367c..464facfeed 100644 --- a/src/drivers/i2c/designware/dw_i2c.h +++ b/src/drivers/i2c/designware/dw_i2c.h @@ -100,11 +100,8 @@ enum cb_err dw_i2c_init(unsigned int bus, const struct dw_i2c_bus_config *bcfg); /* * Generate speed config based on clock - * Return value: - * -1 = failure - * 0 = success */ -int dw_i2c_gen_speed_config(uintptr_t dw_i2c_addr, +enum cb_err dw_i2c_gen_speed_config(uintptr_t dw_i2c_addr, enum i2c_speed speed, const struct dw_i2c_bus_config *bcfg, struct dw_i2c_speed_config *config); |