diff options
| author | Alexander Shiyan <eagle.alexander923@gmail.com> | 2025-03-07 08:38:09 +0300 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2025-04-27 23:59:08 +0200 |
| commit | 62d48983f215bf1dd48665913318101fa3414dcf (patch) | |
| tree | cba89b50c3d2195cb9f34aa3a03815373031b0c5 | |
| parent | 51212ce95354c5b51e8c3054bf80eeeed80003b6 (diff) | |
power: reset: at91-reset: Optimize at91_reset()
This patch adds a small optimization to the low-level at91_reset()
function, which includes:
- Removes the extra branch, since the following store operations
already have proper condition checks.
- Removes the definition of the clobber register r4, since it is
no longer used in the code.
Fixes: fcd0532fac2a ("power: reset: at91-reset: make at91sam9g45_restart() generic")
Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20250307053809.20245-1-eagle.alexander923@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
| -rw-r--r-- | drivers/power/reset/at91-reset.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c index 036b18a1f90f..511f5a8f8961 100644 --- a/drivers/power/reset/at91-reset.c +++ b/drivers/power/reset/at91-reset.c @@ -129,12 +129,11 @@ static int at91_reset(struct notifier_block *this, unsigned long mode, " str %4, [%0, %6]\n\t" /* Disable SDRAM1 accesses */ "1: tst %1, #0\n\t" - " beq 2f\n\t" " strne %3, [%1, #" __stringify(AT91_DDRSDRC_RTR) "]\n\t" /* Power down SDRAM1 */ " strne %4, [%1, %6]\n\t" /* Reset CPU */ - "2: str %5, [%2, #" __stringify(AT91_RSTC_CR) "]\n\t" + " str %5, [%2, #" __stringify(AT91_RSTC_CR) "]\n\t" " b .\n\t" : @@ -145,7 +144,7 @@ static int at91_reset(struct notifier_block *this, unsigned long mode, "r" cpu_to_le32(AT91_DDRSDRC_LPCB_POWER_DOWN), "r" (reset->data->reset_args), "r" (reset->ramc_lpr) - : "r4"); + ); return NOTIFY_DONE; } |