mirrors/u-boot
1
0
Fork 0
mirror of https://source.denx.de/u-boot/u-boot.git synced 2025-08-22 07:01:24 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge tag 'for-v2023-07-rc4' of https://source.denx.de/u-boot/custodians/u-boot-i2c

Browse Source 
i2c updates for v2023-07-rc4

Bugfixes:
- rockchip: De-initialize the bus after start bit failure
  from Ondrej Jirman

- cdns: Fix broken retry mechanism on arbitration lost
This commit is contained in:
Tom Rini 2023-06-06 09:46:27 -04:00
commit d39277ff42
2 changed files with 7 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/i2c/i2c-cdns.c
View File

@ -444,7 +444,7 @@ static int cdns_i2c_xfer(struct udevice *dev, struct i2c_msg *msg,
debug("i2c_xfer: %d messages\n", nmsgs);
for (u8 retry = 0; retry < CDNS_I2C_ARB_LOST_MAX_RETRIES &&
nmsgs > 0; nmsgs--, msg++) {
nmsgs > 0;) {
debug("i2c_xfer: chip=0x%x, len=0x%x\n", msg->addr, msg->len);
if (msg->flags & I2C_M_RD) {
ret = cdns_i2c_read_data(i2c_bus, msg->addr, msg->buf,
@ -461,7 +461,8 @@ static int cdns_i2c_xfer(struct udevice *dev, struct i2c_msg *msg,
retry);
continue;
}
nmsgs--;
msg++;
if (ret) {
debug("i2c_write: error sending\n");
return -EREMOTEIO;

7
drivers/i2c/rk_i2c.c
View File

@ -342,7 +342,7 @@ static int rockchip_i2c_xfer(struct udevice *bus, struct i2c_msg *msg,
int nmsgs)
{
struct rk_i2c *i2c = dev_get_priv(bus);
int ret;
int ret = 0;
debug("i2c_xfer: %d messages\n", nmsgs);
for (; nmsgs > 0; nmsgs--, msg++) {
@ -356,14 +356,15 @@ static int rockchip_i2c_xfer(struct udevice *bus, struct i2c_msg *msg,
}
if (ret) {
debug("i2c_write: error sending\n");
return -EREMOTEIO;
ret = -EREMOTEIO;
break;
}
}
rk_i2c_send_stop_bit(i2c);
rk_i2c_disable(i2c);
return 0;
return ret;
}
int rockchip_i2c_set_bus_speed(struct udevice *bus, unsigned int speed)