forked from mirror/openwrt
a93dfff10e
When initialising the driver, check if the RTL8231 chip is actually
present at the specified address. If the READY_CODE value does not match
the expected value, return -ENXIO to fail probing.
This should help users to figure out which address an RTL8231 is
configured to use, if measuring pull-up/-down resistors is not an
option.
On an unsuccesful probe, the driver will log:
[ 0.795364] Probing RTL8231 GPIOs
[ 0.798978] rtl8231_init called, MDIO bus ID: 30
[ 0.804194] rtl8231-gpio rtl8231-gpio: no device found at bus address 30
When a device is found, only the first two lines will be logged:
[ 0.453698] Probing RTL8231 GPIOs
[ 0.457312] rtl8231_init called, MDIO bus ID: 31
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>
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|---|---|---|
| .. | ||
| base-files | ||
| dts-5.10 | ||
| files/firmware/rtl838x_phy | ||
| files-5.10 | ||
| image | ||
| patches-5.10 | ||
| profiles | ||
| rtl838x | ||
| rtl839x | ||
| rtl930x | ||
| rtl931x | ||
| Makefile | ||