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| author | David Brownell <david-b@pacbell.net> | 2008-06-18 02:31:43 -0700 |
|---|---|---|
| committer | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-06-27 15:32:29 +0200 |
| commit | 9c2baf785e90419d6f9af6bd07aa0694020cba8d (patch) | |
| tree | 8cc1a3721b31d7b09fd260c6bd86e960b2d91ee5 /net/sunrpc/svc_xprt.c | |
| parent | 7ef31e9c4e711bfb817a15b54e428e5c4a7c0032 (diff) | |
| download | kernel_samsung_espresso10-9c2baf785e90419d6f9af6bd07aa0694020cba8d.zip kernel_samsung_espresso10-9c2baf785e90419d6f9af6bd07aa0694020cba8d.tar.gz kernel_samsung_espresso10-9c2baf785e90419d6f9af6bd07aa0694020cba8d.tar.bz2 | |
at32ap700x spi: enable pullups on MISO
This is a minor tweak to the at32ap700x pin configuration for the SPI
input pin (MISO), enabling the on-chip weak pullup (typical 190K) to
(a) ensure a fixed data value for missing or input-only slaves;
(b) prevent power waste associated with inputs floating near VDDIO/2.
Atmel's boards have no external pullup or pulldown on these pins, so
it's unlikely other boards would address these issues with external
pulldowns. Were there trouble, board-specific code could turn off
the relevant pullup(s).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Diffstat (limited to 'net/sunrpc/svc_xprt.c')
0 files changed, 0 insertions, 0 deletions