linux-kernel - [PATCH 3/5] MIPS: jz4740: PM: Let CGU driver suspend clocks and set sleep mode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190507193421.12260-3-paul@crapouillou.net>
Date:   Tue,  7 May 2019 21:34:19 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     od@...c.me, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH 3/5] MIPS: jz4740: PM: Let CGU driver suspend clocks and set sleep mode

Instead of forcing the jz4740 clocks to suspend here, we let the CGU
driver handle it.
We also let the CGU driver set the "sleep mode" bit.

This has the added benefit that now it is possible to build a kernel on
SoCs newer than the JZ4740 with CONFIG_PM.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---
 arch/mips/jz4740/pm.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/mips/jz4740/pm.c b/arch/mips/jz4740/pm.c
index 2d8653f2fc61..9e6c7a2b955f 100644
--- a/arch/mips/jz4740/pm.c
+++ b/arch/mips/jz4740/pm.c
@@ -18,21 +18,13 @@
 #include <linux/delay.h>
 #include <linux/suspend.h>
 
-#include <asm/mach-jz4740/clock.h>
-
 static int jz4740_pm_enter(suspend_state_t state)
 {
-	jz4740_clock_suspend();
-
-	jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_SLEEP);
-
 	__asm__(".set\tmips3\n\t"
 		"wait\n\t"
 		".set\tmips0");
 
-	jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_IDLE);
 
-	jz4740_clock_resume();
 
 	return 0;
 }
-- 
2.21.0.593.g511ec345e18