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Message-Id: <200710142220.50299.rjw@sisk.pl>
Date: Sun, 14 Oct 2007 22:20:49 +0200
From: "Rafael J. Wysocki" <rjw@...k.pl>
To: Joseph Fannin <jfannin@...il.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org,
Domen Puncer <domen.puncer@...argo.com>
Subject: Re: 2.6.23-mm1 pm_prepare() and _finish() w/ args vs. without
On Sunday, 14 October 2007 21:47, Joseph Fannin wrote:
> On Sat, Oct 13, 2007 at 09:13:13PM +0200, Rafael J. Wysocki wrote:
>
> > Yes. Corrected patch follows.
>
> A bit more is needed due to the rename of lite5200_pm_init() to
> lite5200_suspend_init().
Well, I didn't intend to change it. :-)
> An amended patch follows that builds and boots on my powermac.
Thanks.
Can you please try the alternative one below?
I just removed the renaming of lite5200_pm_init() from it.
Greetings,
Rafael
Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
arch/powerpc/platforms/52xx/lite5200_pm.c | 33 ++++++++++++++++++++----------
arch/powerpc/platforms/52xx/mpc52xx_pm.c | 4 +--
include/asm-powerpc/mpc52xx.h | 6 +++--
3 files changed, 28 insertions(+), 15 deletions(-)
Index: linux-2.6.23-mm1/include/asm-powerpc/mpc52xx.h
===================================================================
--- linux-2.6.23-mm1.orig/include/asm-powerpc/mpc52xx.h
+++ linux-2.6.23-mm1/include/asm-powerpc/mpc52xx.h
@@ -18,6 +18,8 @@
#include <asm/prom.h>
#endif /* __ASSEMBLY__ */
+#include <linux/suspend.h>
+
/* ======================================================================== */
/* Structures mapping of some unit register set */
@@ -267,9 +269,9 @@ extern int mpc52xx_set_wakeup_gpio(u8 pi
extern int __init lite5200_pm_init(void);
/* lite5200 calls mpc5200 suspend functions, so here they are */
-extern int mpc52xx_pm_prepare(suspend_state_t);
+extern int mpc52xx_pm_prepare(void);
extern int mpc52xx_pm_enter(suspend_state_t);
-extern int mpc52xx_pm_finish(suspend_state_t);
+extern void mpc52xx_pm_finish(void);
extern char saved_sram[0x4000]; /* reuse buffer from mpc52xx suspend */
#endif
#endif /* CONFIG_PM */
Index: linux-2.6.23-mm1/arch/powerpc/platforms/52xx/lite5200_pm.c
===================================================================
--- linux-2.6.23-mm1.orig/arch/powerpc/platforms/52xx/lite5200_pm.c
+++ linux-2.6.23-mm1/arch/powerpc/platforms/52xx/lite5200_pm.c
@@ -1,5 +1,5 @@
#include <linux/init.h>
-#include <linux/pm.h>
+#include <linux/suspend.h>
#include <asm/io.h>
#include <asm/time.h>
#include <asm/mpc52xx.h>
@@ -18,6 +18,8 @@ static void __iomem *sram;
static const int sram_size = 0x4000; /* 16 kBytes */
static void __iomem *mbar;
+static suspend_state_t lite5200_pm_target_state;
+
static int lite5200_pm_valid(suspend_state_t state)
{
switch (state) {
@@ -29,13 +31,22 @@ static int lite5200_pm_valid(suspend_sta
}
}
-static int lite5200_pm_prepare(suspend_state_t state)
+static int lite5200_pm_set_target(suspend_state_t state)
+{
+ if (lite5200_pm_valid(state)) {
+ lite5200_pm_target_state = state;
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int lite5200_pm_prepare(void)
{
/* deep sleep? let mpc52xx code handle that */
- if (state == PM_SUSPEND_STANDBY)
- return mpc52xx_pm_prepare(state);
+ if (lite5200_pm_target_state == PM_SUSPEND_STANDBY)
+ return mpc52xx_pm_prepare();
- if (state != PM_SUSPEND_MEM)
+ if (lite5200_pm_target_state != PM_SUSPEND_MEM)
return -EINVAL;
/* map registers */
@@ -190,17 +201,17 @@ static int lite5200_pm_enter(suspend_sta
return 0;
}
-static int lite5200_pm_finish(suspend_state_t state)
+static void lite5200_pm_finish(void)
{
/* deep sleep? let mpc52xx code handle that */
- if (state == PM_SUSPEND_STANDBY) {
- return mpc52xx_pm_finish(state);
+ if (lite5200_pm_target_state == PM_SUSPEND_STANDBY) {
+ mpc52xx_pm_finish();
}
- return 0;
}
-static struct pm_ops lite5200_pm_ops = {
+static struct platform_suspend_ops lite5200_pm_ops = {
.valid = lite5200_pm_valid,
+ .set_target = lite5200_pm_set_target,
.prepare = lite5200_pm_prepare,
.enter = lite5200_pm_enter,
.finish = lite5200_pm_finish,
@@ -208,6 +219,6 @@ static struct pm_ops lite5200_pm_ops = {
int __init lite5200_pm_init(void)
{
- pm_set_ops(&lite5200_pm_ops);
+ suspend_set_ops(&lite5200_pm_ops);
return 0;
}
Index: linux-2.6.23-mm1/arch/powerpc/platforms/52xx/mpc52xx_pm.c
===================================================================
--- linux-2.6.23-mm1.orig/arch/powerpc/platforms/52xx/mpc52xx_pm.c
+++ linux-2.6.23-mm1/arch/powerpc/platforms/52xx/mpc52xx_pm.c
@@ -57,7 +57,7 @@ int mpc52xx_set_wakeup_gpio(u8 pin, u8 l
return 0;
}
-static int mpc52xx_pm_prepare(void)
+int mpc52xx_pm_prepare(void)
{
/* map the whole register space */
mbar = mpc52xx_find_and_map("mpc5200");
@@ -163,7 +163,7 @@ int mpc52xx_pm_enter(suspend_state_t sta
return 0;
}
-static void mpc52xx_pm_finish(void)
+void mpc52xx_pm_finish(void)
{
/* call board resume code */
if (mpc52xx_suspend.board_resume_finish)
-
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