From: Ben Hutchings <bhutchings@solarflare.com>
Date: Sat, 13 Dec 2008 05:33:50 +0000 (-0800)
Subject: sfc: Clean up waits for flash/EEPROM operations
X-Git-Tag: v2.6.29-rc1~581^2~228
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be4ea89c8df06f48d0d64cf1d9d20009e83c77c8;p=pandora-kernel.git

sfc: Clean up waits for flash/EEPROM operations

Make falcon_spi_wait() ignore the write timer - it is only relevant to
write commands, it only works for the device that contains VPD, and it
might not be initialised properly at all.

Rename falcon_spi_fast_wait() to falcon_spi_wait_write(), reflecting
its use, and make it wait up to 10 ms (not 1 ms) since buffered writes
to EEPROM may take this long to complete.

Make both wait functions sleep instead of busy-waiting.

Replace wait for command completion at top of falcon_spi_cmd() with a
single poll; no command should be running when the function starts.

Correct some comments.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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