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authorRussell King2005-11-18 18:57:55 +0100
committerJeff Garzik2005-11-18 19:10:30 +0100
commite52542443aa9be15439e9879baf6d41b290e94db (patch)
tree840fb2eb41713e75b9b8ba82e3961f71530447e1 /REPORTING-BUGS
parent[PATCH] smc91x: fix one source of spurious interrupts (diff)
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[PATCH] smc91x: fix bank mismatch
The smc91x driver relies upon register bank 2 being selected whenever the interrupt handler is called. This isn't always so, especially if we have a link change event during PHY configuration. This results in register bank 0 being selected when the interrupt handler is called, causing the wrong registers to be read for the IRQ mask and status. In turn, this causes us to spin with a permanently asserted IRQ. The patch ensures that smc_phy_configure always exits with register bank 2 selected. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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