* [PATCH] savagefb: Speed up the I2C bus
@ 2008-02-12 9:29 Jean Delvare
0 siblings, 0 replies; only message in thread
From: Jean Delvare @ 2008-02-12 9:29 UTC (permalink / raw)
To: Antonino Daplas; +Cc: linux-fbdev-devel
There is no reason to drive the savagefb I2C bus at such a low speed,
so bump it from 12.5 kbps to 50 kbps. The Intel (i810) and Matrox
framebuffer drivers already run their I2C bus at this speed, and so
are the legacy i2c-savage4 and i2c-prosavage drivers.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
This patch was already sent on:
* 2007-09-09
drivers/video/savage/savagefb-i2c.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-2.6.23-rc5.orig/drivers/video/savage/savagefb-i2c.c 2007-07-09 14:49:51.000000000 +0200
+++ linux-2.6.23-rc5/drivers/video/savage/savagefb-i2c.c 2007-09-09 11:34:05.000000000 +0200
@@ -140,7 +140,7 @@ static int savage_setup_i2c_bus(struct s
chan->adapter.id = I2C_HW_B_SAVAGE;
chan->adapter.algo_data = &chan->algo;
chan->adapter.dev.parent = &chan->par->pcidev->dev;
- chan->algo.udelay = 40;
+ chan->algo.udelay = 10;
chan->algo.timeout = 20;
chan->algo.data = chan;
--
Jean Delvare
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2008-02-12 9:29 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-02-12 9:29 [PATCH] savagefb: Speed up the I2C bus Jean Delvare
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).