at86rf230: change reset timings

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While checkpatch another patch I got a:

"WARNING: msleep < 20ms can sleep for up to 20ms"

The datasheet of at86rf231 and at86rf212 says a minimum delay for reset
pulse width and spi access latency after reset is 625 nanoseconds.

This patch removes the 1 milliseconds sleep and replace it with a 1
microseconds udelay which should be also okay for the reset pulse width.

To change the state from RESET -> TRX_OFF the at86rf230 device needs 120
microseconds, this is a worst case of all at86rf* chips.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Alexander Aring 2014-03-15 09:29:05 +01:00 • committed by David S. Miller

parent 7e8146189a

commit 56f023fbe8

1 changed files with 3 additions and 3 deletions

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drivers/net/ieee802154/at86rf230.c

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