This is a note to let you know that I've just added the patch titled
bbc-i2c: Fix BBC I2C envctrl on SunBlade 2000
to the 3.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bbc-i2c-fix-bbc-i2c-envctrl-on-sunblade-2000.patch
and it can be found in the queue-3.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Fri Aug 8 09:03:00 PDT 2014
From: Christopher Alexander Tobias Schulze <cat.schulze@xxxxxxxxxxxxx>
Date: Sun, 3 Aug 2014 15:44:52 +0200
Subject: bbc-i2c: Fix BBC I2C envctrl on SunBlade 2000
From: Christopher Alexander Tobias Schulze <cat.schulze@xxxxxxxxxxxxx>
[ Upstream commit 5cdceab3d5e02eb69ea0f5d8fa9181800baf6f77 ]
Fix regression in bbc i2c temperature and fan control on some Sun systems
that causes the driver to refuse to load due to the bbc_i2c_bussel resource not
being present on the (second) i2c bus where the temperature sensors and fan
control are located. (The check for the number of resources was removed when
the driver was ported to a pure OF driver in mid 2008.)
Signed-off-by: Christopher Alexander Tobias Schulze <cat.schulze@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/sbus/char/bbc_envctrl.c | 6 ++++++
drivers/sbus/char/bbc_i2c.c | 11 ++++++++---
2 files changed, 14 insertions(+), 3 deletions(-)
--- a/drivers/sbus/char/bbc_envctrl.c
+++ b/drivers/sbus/char/bbc_envctrl.c
@@ -452,6 +452,9 @@ static void attach_one_temp(struct bbc_i
if (!tp)
return;
+ INIT_LIST_HEAD(&tp->bp_list);
+ INIT_LIST_HEAD(&tp->glob_list);
+
tp->client = bbc_i2c_attach(bp, op);
if (!tp->client) {
kfree(tp);
@@ -497,6 +500,9 @@ static void attach_one_fan(struct bbc_i2
if (!fp)
return;
+ INIT_LIST_HEAD(&fp->bp_list);
+ INIT_LIST_HEAD(&fp->glob_list);
+
fp->client = bbc_i2c_attach(bp, op);
if (!fp->client) {
kfree(fp);
--- a/drivers/sbus/char/bbc_i2c.c
+++ b/drivers/sbus/char/bbc_i2c.c
@@ -300,13 +300,18 @@ static struct bbc_i2c_bus * attach_one_i
if (!bp)
return NULL;
+ INIT_LIST_HEAD(&bp->temps);
+ INIT_LIST_HEAD(&bp->fans);
+
bp->i2c_control_regs = of_ioremap(&op->resource[0], 0, 0x2, "bbc_i2c_regs");
if (!bp->i2c_control_regs)
goto fail;
- bp->i2c_bussel_reg = of_ioremap(&op->resource[1], 0, 0x1, "bbc_i2c_bussel");
- if (!bp->i2c_bussel_reg)
- goto fail;
+ if (op->num_resources == 2) {
+ bp->i2c_bussel_reg = of_ioremap(&op->resource[1], 0, 0x1, "bbc_i2c_bussel");
+ if (!bp->i2c_bussel_reg)
+ goto fail;
+ }
bp->waiting = 0;
init_waitqueue_head(&bp->wq);
Patches currently in stable-queue which might be from cat.schulze@xxxxxxxxxxxxx are
queue-3.15/bbc-i2c-fix-bbc-i2c-envctrl-on-sunblade-2000.patch
queue-3.15/sunsab-fix-detection-of-break-on-sunsab-serial-console.patch
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