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author | Srinivas Kandagatla <srinivas.kandagatla@st.com> | 2012-11-16 04:33:59 +0400 |
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committer | David S. Miller <davem@davemloft.net> | 2012-11-20 03:57:07 +0400 |
commit | 3272dd9b0fe4bc09321219ab65dc5eda3e82445c (patch) | |
tree | f881e4e74172dd845a3fe1e45e27d004ab5b43c7 /include/asm-generic/exec.h | |
parent | 8495c0da20bc496ac9d5da2b292adb28f61d2713 (diff) | |
download | linux-3272dd9b0fe4bc09321219ab65dc5eda3e82445c.tar.xz |
of/net/mdio-gpio: Fix pdev->id issue when using devicetrees.
When the mdio-gpio driver is probed via device trees, the platform
device id is set as -1, However the pdev->id is re-used as bus-id for
while creating mdio gpio bus.
So
For device tree case the mdio-gpio bus name appears as "gpio-ffffffff"
where as
for non-device tree case the bus name appears as "gpio-<bus-num>"
Which means the bus_id is fixed in device tree case, so we can't have
two mdio gpio buses via device trees. Assigning a logical bus number
via device tree solves the problem and the bus name is much consistent
with non-device tree bus name.
Without this patch
1. we can't support two mdio-gpio buses via device trees.
2. we should always pass gpio-ffffffff as bus name to phy_connect, very
different to non-device tree bus name.
So, setting up the bus_id via aliases from device tree is the right
solution and other drivers do similar thing.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-generic/exec.h')
0 files changed, 0 insertions, 0 deletions