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i2c: sh_mobile: allow setup callback to return errno

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The setup callback will be more generic and, thus, need to be able to
return error codes. Change the return type to 'int' for that.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Wolfram Sang 2017-12-18 22:57:57 +01:00 committed by Wolfram Sang
parent 9e42213116
commit 12742b6ac1
1 changed files with 9 additions and 4 deletions
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13
drivers/i2c/busses/i2c-sh_mobile.c
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@ -149,7 +149,7 @@ struct sh_mobile_i2c_data {
struct sh_mobile_dt_config {
int clks_per_count;
void (*setup)(struct sh_mobile_i2c_data *pd);
int (*setup)(struct sh_mobile_i2c_data *pd);
};
#define IIC_FLAG_HAS_ICIC67 (1 << 0)
@ -749,7 +749,7 @@ static const struct i2c_algorithm sh_mobile_i2c_algorithm = {
* r8a7740 chip has lasting errata on I2C I/O pad reset.
* this is work-around for it.
*/
static void sh_mobile_i2c_r8a7740_workaround(struct sh_mobile_i2c_data *pd)
static int sh_mobile_i2c_r8a7740_workaround(struct sh_mobile_i2c_data *pd)
{
iic_set_clr(pd, ICCR, ICCR_ICE, 0);
iic_rd(pd, ICCR); /* dummy read */
@ -770,6 +770,8 @@ static void sh_mobile_i2c_r8a7740_workaround(struct sh_mobile_i2c_data *pd)
udelay(10);
iic_wr(pd, ICCR, ICCR_TRS);
udelay(10);
return 0;
}
static const struct sh_mobile_dt_config default_dt_config = {
@ -881,8 +883,11 @@ static int sh_mobile_i2c_probe(struct platform_device *dev)
if (config) {
pd->clks_per_count = config->clks_per_count;
if (config->setup)
config->setup(pd);
if (config->setup) {
ret = config->setup(pd);
if (ret)
return ret;
}
}
ret = sh_mobile_i2c_init(pd);