board: gw_ventana: gsc: fix GSC read/write functions
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: 7c84319af9c7 ("dm: gpio: Correct use of -ENODEV in drivers")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
diff --git a/board/gateworks/gw_ventana/gsc.c b/board/gateworks/gw_ventana/gsc.c
index 324e5db..a5d6de7 100644
--- a/board/gateworks/gw_ventana/gsc.c
+++ b/board/gateworks/gw_ventana/gsc.c
@@ -41,7 +41,7 @@
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 @@
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);
}