ARM: at91: pm: use r7 instead of tmp1

Use r7 instead of tmp1 in macros. This prepares the filed for
next commits.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20210415105010.569620-7-claudiu.beznea@microchip.com

diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S
index b683c2c..3d20c98 100644 (file)
--- a/arch/arm/mach-at91/pm_suspend.S
+++ b/arch/arm/mach-at91/pm_suspend.S
@@ -31,30 +31,36 @@ tmp3        .req    r6
 
 /*
  * Wait until master oscillator has stabilized.
+ *
+ * Side effects: overwrites r7
  */
        .macro wait_moscrdy
-1:     ldr     tmp1, [pmc, #AT91_PMC_SR]
-       tst     tmp1, #AT91_PMC_MOSCS
+1:     ldr     r7, [pmc, #AT91_PMC_SR]
+       tst     r7, #AT91_PMC_MOSCS
        beq     1b
        .endm
 
 /*
  * Wait for main oscillator selection is done
+ *
+ * Side effects: overwrites r7
  */
        .macro wait_moscsels
-1:     ldr     tmp1, [pmc, #AT91_PMC_SR]
-       tst     tmp1, #AT91_PMC_MOSCSELS
+1:     ldr     r7, [pmc, #AT91_PMC_SR]
+       tst     r7, #AT91_PMC_MOSCSELS
        beq     1b
        .endm
 
 /*
  * Put the processor to enter the idle state
+ *
+ * Side effects: overwrites r7
  */
        .macro at91_cpu_idle
 
 #if defined(CONFIG_CPU_V7)
-       mov     tmp1, #AT91_PMC_PCK
-       str     tmp1, [pmc, #AT91_PMC_SCDR]
+       mov     r7, #AT91_PMC_PCK
+       str     r7, [pmc, #AT91_PMC_SCDR]
 
        dsb