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authorHamish Guthrie <hcg@openwrt.org>2009-03-24 08:54:41 +0000
committerHamish Guthrie <hcg@openwrt.org>2009-03-24 08:54:41 +0000
commit74b20050069bf139ff490f32435f27b927fb4ce7 (patch)
treec1cc6c53bf0a0eb89ebaf60d02359b15334b3e28 /target/linux/ps3/patches-2.6.28/0012-mtd-ps3vram-Use-msleep-in-waits.patch
parentd0e357e729480d44369c2472081a587e4e5c5e12 (diff)
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ps3: update ps3vram patches
SVN-Revision: 15011
Diffstat (limited to 'target/linux/ps3/patches-2.6.28/0012-mtd-ps3vram-Use-msleep-in-waits.patch')
-rw-r--r--target/linux/ps3/patches-2.6.28/0012-mtd-ps3vram-Use-msleep-in-waits.patch87
1 files changed, 87 insertions, 0 deletions
diff --git a/target/linux/ps3/patches-2.6.28/0012-mtd-ps3vram-Use-msleep-in-waits.patch b/target/linux/ps3/patches-2.6.28/0012-mtd-ps3vram-Use-msleep-in-waits.patch
new file mode 100644
index 0000000000..0f235094c0
--- /dev/null
+++ b/target/linux/ps3/patches-2.6.28/0012-mtd-ps3vram-Use-msleep-in-waits.patch
@@ -0,0 +1,87 @@
+From 60c0c5987b0996a7c7c4c6d90f63ed413c368a71 Mon Sep 17 00:00:00 2001
+From: Geoff Levand <geoffrey.levand@am.sony.com>
+Date: Wed, 7 Jan 2009 17:22:02 -0800
+Subject: [PATCH] mtd/ps3vram: Use msleep in waits
+
+Replace the use of udelay() with msleep() in the looping wait routines
+ps3vram_notifier_wait() and ps3vram_wait_ring().
+
+Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+---
+ drivers/mtd/devices/ps3vram.c | 42 +++++++++++++++++-----------------------
+ 1 files changed, 18 insertions(+), 24 deletions(-)
+
+diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c
+index 91cc2af..d592414 100644
+--- a/drivers/mtd/devices/ps3vram.c
++++ b/drivers/mtd/devices/ps3vram.c
+@@ -109,22 +109,19 @@ static void ps3vram_notifier_reset(struct mtd_info *mtd)
+ notify[i] = 0xffffffff;
+ }
+
+-static int ps3vram_notifier_wait(struct mtd_info *mtd, int timeout_ms)
++static int ps3vram_notifier_wait(struct mtd_info *mtd, unsigned int timeout_ms)
+ {
+ struct ps3vram_priv *priv = mtd->priv;
+ u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
+-
+- timeout_ms *= 1000;
++ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
+
+ do {
+- if (notify[3] == 0)
++ if (!notify[3])
+ return 0;
++ msleep(1);
++ } while (time_before(jiffies, timeout));
+
+- if (timeout_ms)
+- udelay(1);
+- } while (timeout_ms--);
+-
+- return -1;
++ return -ETIMEDOUT;
+ }
+
+ static void ps3vram_init_ring(struct mtd_info *mtd)
+@@ -135,25 +132,22 @@ static void ps3vram_init_ring(struct mtd_info *mtd)
+ priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET;
+ }
+
+-static int ps3vram_wait_ring(struct mtd_info *mtd, int timeout)
++static int ps3vram_wait_ring(struct mtd_info *mtd, unsigned int timeout_ms)
+ {
+ struct ps3vram_priv *priv = mtd->priv;
++ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
+
+- /* wait until setup commands are processed */
+- timeout *= 1000;
+- while (--timeout) {
++ do {
+ if (priv->ctrl[CTRL_PUT] == priv->ctrl[CTRL_GET])
+- break;
+- udelay(1);
+- }
+- if (timeout == 0) {
+- dev_dbg(priv->dev, "%s:%d: FIFO timeout (%08x/%08x/%08x)\n",
+- __func__, __LINE__, priv->ctrl[CTRL_PUT],
+- priv->ctrl[CTRL_GET], priv->ctrl[CTRL_TOP]);
+- return -ETIMEDOUT;
+- }
++ return 0;
++ msleep(1);
++ } while (time_before(jiffies, timeout));
+
+- return 0;
++ dev_dbg(priv->dev, "%s:%d: FIFO timeout (%08x/%08x/%08x)\n", __func__,
++ __LINE__, priv->ctrl[CTRL_PUT], priv->ctrl[CTRL_GET],
++ priv->ctrl[CTRL_TOP]);
++
++ return -ETIMEDOUT;
+ }
+
+ static void ps3vram_out_ring(struct ps3vram_priv *priv, u32 data)
+--
+1.6.0.4
+