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ath79: kernel: drop _machine_restart again

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Backport patch ("MIPS: ath79: drop _machine_restart again"), which is
required to support GPIO restart handler on ZTE MF286, broken due to
_machine_restart being restored in kernel accidentally, wich causes any
registered restart handlers to not execute, including one from
ath79-reset driver.

Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
This commit is contained in:
Lech Perczak 2022-01-11 00:13:02 +01:00 committed by Christian Lamparter
parent 02fbdc6a47
commit 54e82f5c9a
1 changed files with 54 additions and 0 deletions
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54
target/linux/generic/backport-5.10/860-v5.17-MIPS-ath79-drop-_machine_restart-again.patch Normal file
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@ -0,0 +1,54 @@
From d3115128bdafb62628ab41861a4f06f6d02ac320 Mon Sep 17 00:00:00 2001
From: Lech Perczak <lech.perczak@gmail.com>
Date: Mon, 10 Jan 2022 23:48:44 +0100
Subject: MIPS: ath79: drop _machine_restart again
Commit 81424d0ad0d4 ("MIPS: ath79: Use the reset controller to restart
OF machines") removed setup of _machine_restart on OF machines to use
reset handler in reset controller driver.
While removing remnants of non-OF machines in commit 3a77e0d75eed
("MIPS: ath79: drop machfiles"), this was introduced again, making it
impossible to use additional restart handlers registered through device
tree. Drop setting _machine_restart altogether, and ath79_restart
function, which is no longer used after this.
Fixes: 3a77e0d75eed ("MIPS: ath79: drop machfiles")
Cc: John Crispin <john@phrozen.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---
arch/mips/ath79/setup.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c
index 891f495c4c3c01..0ac435fe2dc9aa 100644
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -34,15 +34,6 @@
static char ath79_sys_type[ATH79_SYS_TYPE_LEN];
-static void ath79_restart(char *command)
-{
- local_irq_disable();
- ath79_device_reset_set(AR71XX_RESET_FULL_CHIP);
- for (;;)
- if (cpu_wait)
- cpu_wait();
-}
-
static void ath79_halt(void)
{
while (1)
@@ -234,7 +225,6 @@ void __init plat_mem_setup(void)
detect_memory_region(0, ATH79_MEM_SIZE_MIN, ATH79_MEM_SIZE_MAX);
- _machine_restart = ath79_restart;
_machine_halt = ath79_halt;
pm_power_off = ath79_halt;
}
--
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