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board: gw_ventana: gsc: fix GSC read/write functions

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commit 7c84319af9c7 ("dm: gpio: Correct use of -ENODEV in drivers")
changed the return code for an I2C NAK from -ENODEV to -EREMOTEIO.

Update the gsc_i2c_read and gsc_i2c_write functions for this change
to properly retry the transaction on a NAK meaning the GSC is busy.

Fixes: 7c84319af9 ("dm: gpio: Correct use of -ENODEV in drivers")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
This commit is contained in:
Tim Harvey 2022-03-24 08:32:00 -07:00 committed by Tom Rini
parent 0c60b657d8
commit 051df08fe0
1 changed files with 2 additions and 2 deletions
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4
board/gateworks/gw_ventana/gsc.c
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@ -41,7 +41,7 @@ int gsc_i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len)
break;
debug("%s: 0x%02x 0x%02x retry%d: %d\n", __func__, chip, addr,
n, ret);
if (ret != -ENODEV)
if (ret != -EREMOTEIO)
break;
mdelay(10);
}
@ -60,7 +60,7 @@ int gsc_i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len)
break;
debug("%s: 0x%02x 0x%02x retry%d: %d\n", __func__, chip, addr,
n, ret);
if (ret != -ENODEV)
if (ret != -EREMOTEIO)
break;
mdelay(10);
}