target/linux/at91/patches-5.15/202-ARM-at91-pm-use-r7-instead-of-tmp1.patch

   1 From 8a7a4cf3860910e460e2c3ca467b1dabf7ce9827 Mon Sep 17 00:00:00 2001
   2 From: Claudiu Beznea <claudiu.beznea@microchip.com>
   3 Date: Thu, 15 Apr 2021 13:49:52 +0300
   4 Subject: [PATCH 202/247] ARM: at91: pm: use r7 instead of tmp1
   5
   6 Use r7 instead of tmp1 in macros. This prepares the filed for
   7 next commits.
   8
   9 Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
  10 Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
  11 Link: https://lore.kernel.org/r/20210415105010.569620-7-claudiu.beznea@microchip.com
  12 ---
  13  arch/arm/mach-at91/pm_suspend.S | 18 ++++++++++++------
  14  1 file changed, 12 insertions(+), 6 deletions(-)
  15
  16 --- a/arch/arm/mach-at91/pm_suspend.S
  17 +++ b/arch/arm/mach-at91/pm_suspend.S
  18 @@ -31,30 +31,36 @@ tmp3        .req    r6
  19
  20  /*
  21   * Wait until master oscillator has stabilized.
  22 + *
  23 + * Side effects: overwrites r7
  24   */
  25         .macro wait_moscrdy
  26 -1:     ldr     tmp1, [pmc, #AT91_PMC_SR]
  27 -       tst     tmp1, #AT91_PMC_MOSCS
  28 +1:     ldr     r7, [pmc, #AT91_PMC_SR]
  29 +       tst     r7, #AT91_PMC_MOSCS
  30         beq     1b
  31         .endm
  32
  33  /*
  34   * Wait for main oscillator selection is done
  35 + *
  36 + * Side effects: overwrites r7
  37   */
  38         .macro wait_moscsels
  39 -1:     ldr     tmp1, [pmc, #AT91_PMC_SR]
  40 -       tst     tmp1, #AT91_PMC_MOSCSELS
  41 +1:     ldr     r7, [pmc, #AT91_PMC_SR]
  42 +       tst     r7, #AT91_PMC_MOSCSELS
  43         beq     1b
  44         .endm
  45
  46  /*
  47   * Put the processor to enter the idle state
  48 + *
  49 + * Side effects: overwrites r7
  50   */
  51         .macro at91_cpu_idle
  52
  53  #if defined(CONFIG_CPU_V7)
  54 -       mov     tmp1, #AT91_PMC_PCK
  55 -       str     tmp1, [pmc, #AT91_PMC_SCDR]
  56 +       mov     r7, #AT91_PMC_PCK
  57 +       str     r7, [pmc, #AT91_PMC_SCDR]
  58
  59         dsb
  60