The patch titled
I2C PCA954x: Fix initial access to first mux/switch port
has been removed from the -mm tree. Its filename is
i2c-pca954x-fix-initial-access-to-first-mux-switch-port.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: I2C PCA954x: Fix initial access to first mux/switch port
From: Kumar Gala <galak@xxxxxxxxxxxxxxxxxxx>
The first mux/switch port would not get selected if it was the first port
to be accessed because the code believed it already had. We now initialize
the last channel to a bogus value to ensure the first access will properly
select the channel.
Signed-off-by: Kumar Gala <galak@xxxxxxxxxxxxxxxxxxx>
Cc: Jean Delvare <khali@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/i2c/chips/pca954x.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN drivers/i2c/chips/pca954x.c~i2c-pca954x-fix-initial-access-to-first-mux-switch-port drivers/i2c/chips/pca954x.c
--- devel/drivers/i2c/chips/pca954x.c~i2c-pca954x-fix-initial-access-to-first-mux-switch-port 2006-06-01 20:23:06.000000000 -0700
+++ devel-akpm/drivers/i2c/chips/pca954x.c 2006-06-01 20:23:06.000000000 -0700
@@ -234,6 +234,10 @@ static int pca954x_detect(struct i2c_ada
data->chip_offset = i;
+ /* Set last_chan to an invalid channel to force an initial setting
+ * of the mux/switch on the first select_chan */
+ data->last_chan = 0xff;
+
if ((ret = i2c_attach_client(client)))
goto exit_free;
_
Patches currently in -mm which might be from galak@xxxxxxxxxxxxxxxxxxx are
i2c-mpc-fix-up-error-handling.patch
git-powerpc.patch
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