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power: reset: at91-reset: use r4 as tmp argument

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Use r4 as temporary register. On ARM r0-r3 should be used to hold
function arguments.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Claudiu.Beznea@microchip.com 2020-01-21 10:03:33 +00:00 committed by Sebastian Reichel
parent 25b80b7d5a
commit 7cb290d3dd
1 changed files with 3 additions and 3 deletions
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6
drivers/power/reset/at91-reset.c
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@ -113,8 +113,8 @@ static int at91sam9g45_restart(struct notifier_block *this, unsigned long mode,
"beq 1f\n\t"
/* Then, test that the RAM controller is enabled */
"ldr r0, [%1]\n\t"
"cmp r0, #0\n\t"
"ldr r4, [%1]\n\t"
"cmp r4, #0\n\t"
/* Align to cache lines */
".balign 32\n\t"
@ -138,7 +138,7 @@ static int at91sam9g45_restart(struct notifier_block *this, unsigned long mode,
"r" (1),
"r" cpu_to_le32(AT91_DDRSDRC_LPCB_POWER_DOWN),
"r" (reset->args)
: "r0");
: "r4");
return NOTIFY_DONE;
}