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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, linux-omap@vger.kernel.org
Subject: [PATCH 14/25] ARM: pm: pxa: cleanup PXA suspend code
Date: Wed, 22 Jun 2011 16:13:15 +0100	[thread overview]
Message-ID: <E1QZP7D-0002Wf-As@rmk-PC.arm.linux.org.uk> (raw)
In-Reply-To: <20110622150816.GT23234@n2100.arm.linux.org.uk>

Remove now redundant stacking of registers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-pxa/sleep.S |   33 +++++++++++++--------------------
 1 files changed, 13 insertions(+), 20 deletions(-)

diff --git a/arch/arm/mach-pxa/sleep.S b/arch/arm/mach-pxa/sleep.S
index 3a67887..cd39293 100644
--- a/arch/arm/mach-pxa/sleep.S
+++ b/arch/arm/mach-pxa/sleep.S
@@ -33,11 +33,15 @@ ENTRY(pxa3xx_cpu_suspend)
 #ifndef CONFIG_IWMMXT
 	mra	r2, r3, acc0
 #endif
-	stmfd	sp!, {r2 - r12, lr}	@ save registers on stack
+	stmfd	sp!, {r2, r3, lr}	@ save registers on stack
 	mov	r1, r0
 	adr	r3, BSYM(pxa3xx_finish_suspend)
 	bl	cpu_suspend
-	b	pxa_cpu_resume
+	ldmfd	sp!, {r2, r3, lr}
+#ifndef CONFIG_IWMMXT
+	mar	acc0, r2, r3
+#endif
+	mov	pc, lr
 
 pxa3xx_finish_suspend:
 	mov	r0, #0x06		@ S2D3C4 mode
@@ -60,11 +64,15 @@ ENTRY(pxa27x_cpu_suspend)
 #ifndef CONFIG_IWMMXT
 	mra	r2, r3, acc0
 #endif
-	stmfd	sp!, {r2 - r12, lr}		@ save registers on stack
+	stmfd	sp!, {r2, r3, lr}		@ save registers on stack
 	mov	r2, r0				@ save sleep mode
 	adr	r3, BSYM(pxa27x_finish_suspend)
 	bl	cpu_suspend
-	b	pxa_cpu_resume
+	ldmfd	sp!, {r2, r3, lr}
+#ifndef CONFIG_IWMMXT
+	mar	acc0, r2, r3
+#endif
+	mov	pc, lr
 
 pxa27x_finish_suspend:
 	@ Put the processor to sleep
@@ -112,11 +120,9 @@ pxa27x_finish_suspend:
  */
 
 ENTRY(pxa25x_cpu_suspend)
-	stmfd	sp!, {r2 - r12, lr}		@ save registers on stack
 	mov	r2, r0				@ save sleep mode
 	adr	r3, BSYM(pxa25x_finish_suspend)
-	bl	cpu_suspend
-	b	pxa_cpu_resume
+	b	cpu_suspend
 
 pxa25x_finish_suspend:
 	@ prepare value for sleep mode
@@ -202,16 +208,3 @@ pxa_cpu_do_suspend:
 	mcr	p14, 0, r1, c7, c0, 0		@ PWRMODE
 
 20:	b	20b				@ loop waiting for sleep
-
-/*
- * pxa_cpu_resume()
- *
- * entry point from bootloader into kernel during resume
- */
-	.align 5
-pxa_cpu_resume:
-	ldmfd	sp!, {r2, r3}
-#ifndef CONFIG_IWMMXT
-	mar	acc0, r2, r3
-#endif
-	ldmfd	sp!, {r4 - r12, pc}		@ return to caller
-- 
1.7.4.4

  parent reply	other threads:[~2011-06-22 15:13 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-22 15:08 [PATCH 00/25 v2] Re-jig cpu_suspend for a saner calling convention Russell King - ARM Linux
2011-06-22 15:08 ` [PATCH 01/25] ARM: pm: make MULTI_CPU and !MULTI_CPU resume paths the same Russell King - ARM Linux
2011-06-22 15:09 ` [PATCH 02/25] ARM: pm: move return address (for cpu_resume) to top of stack Russell King - ARM Linux
2011-06-22 15:09 ` [PATCH 03/25] ARM: pm: extract common code from MULTI_CPU/!MULTI_CPU paths Russell King - ARM Linux
2011-06-22 15:09 ` [PATCH 04/25] ARM: pm: preserve r4 - r11 across a suspend Russell King - ARM Linux
2011-06-22 15:10 ` [PATCH 05/25] ARM: pm: reallocate registers to avoid r2, r3 Russell King - ARM Linux
2011-06-22 15:10 ` [PATCH 06/25] ARM: pm: rejig suspend follow-on function calling convention Russell King - ARM Linux
2011-06-22 15:10 ` [PATCH 07/25] ARM: pm: move sa1100 to use proper suspend func arg0 Russell King - ARM Linux
2011-06-22 15:11 ` [PATCH 08/25] ARM: pm: convert cpu_suspend() to a normal function Russell King - ARM Linux
2011-06-22 15:11 ` [PATCH 09/25] ARM: pm: plat-s3c24xx: cleanup s3c_cpu_save Russell King - ARM Linux
2011-06-22 15:11 ` [PATCH 10/25] ARM: pm: sa1100: cleanup sa1100_cpu_suspend Russell King - ARM Linux
2011-06-22 15:12 ` [PATCH 11/25] ARM: pm: mach-s5pv210: cleanup s3c_cpu_save Russell King - ARM Linux
2011-06-22 15:12 ` [PATCH 12/25] ARM: pm: mach-exynos4: " Russell King - ARM Linux
2011-06-22 15:12 ` [PATCH 13/25] ARM: pm: mach-s3c64xx: " Russell King - ARM Linux
2011-06-22 15:13 ` Russell King - ARM Linux [this message]
2011-06-22 15:13 ` [PATCH 15/25] ARM: pm: sa1100: move cpu_suspend into C code Russell King - ARM Linux
2011-06-22 15:13 ` [PATCH 16/25] ARM: pm: pxa: " Russell King - ARM Linux
2011-06-22 15:14 ` [PATCH 17/25] ARM: pm: move cpu_init() call into core code Russell King - ARM Linux
2011-06-22 15:14 ` [PATCH 18/25] ARM: pm: arrange for cpu_proc_init() to be called on resume Russell King - ARM Linux
2011-06-22 15:14 ` [PATCH 19/25] ARM: pm: sa1100: no need to re-enable clock switching Russell King - ARM Linux
2011-06-22 15:15 ` [PATCH 20/25] ARM: pm: samsung: move cpu_suspend into C code Russell King - ARM Linux
2011-06-22 15:15 ` [PATCH 21/25] ARM: pm: samsung: no need to call flush_cache_all() Russell King - ARM Linux
2011-06-22 15:15 ` [PATCH 22/25] ARM: pm: omap: no need to save all registers in sleep34xx.S Russell King - ARM Linux
2011-06-22 15:16 ` [PATCH 23/25] ARM: pm: omap34xx: remove misleading comment and use of r9 Russell King - ARM Linux
2011-06-22 15:16 ` [PATCH 24/25] ARM: pm: ensure ARMv7 CPUs save and restore the TLS register Russell King - ARM Linux
2011-06-22 15:16 ` [PATCH 25/25] ARM: pm: omap34xx: convert to generic suspend/resume support Russell King - ARM Linux
2011-06-22 16:10   ` Russell King - ARM Linux
2011-06-22 23:33     ` Santosh Shilimkar
2011-06-23 10:47       ` Russell King - ARM Linux
2011-06-23  6:33   ` Tony Lindgren
2011-06-23 10:06   ` Russell King - ARM Linux
2011-06-23 10:21     ` Russell King - ARM Linux
2011-06-23 19:05   ` Kevin Hilman
2011-06-23 20:37     ` Kevin Hilman
2011-06-23 21:57     ` Kevin Hilman
2011-06-22 21:01 ` [PATCH 00/25 v2] Re-jig cpu_suspend for a saner calling convention Russell King - ARM Linux
2011-06-22 23:26   ` Santosh Shilimkar

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