linux-kernel - [PATCH] soundwire: amd: clear wake enable register for power off 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-next>] [day] [month] [year] [list]

Message-ID: <20241112185138.3235375-1-Vijendar.Mukunda@amd.com>
Date: Wed, 13 Nov 2024 00:21:38 +0530
From: Vijendar Mukunda <Vijendar.Mukunda@....com>
To: <vkoul@...nel.org>
CC: <yung-chuan.liao@...ux.intel.com>, <pierre-louis.bossart@...ux.dev>,
	<sanyog.r.kale@...el.com>, <alsa-devel@...a-project.org>,
	<linux-kernel@...r.kernel.org>, <Basavaraj.Hiregoudar@....com>,
	<Sunil-kumar.Dommati@....com>, <venkataprasad.potturu@....com>,
	<mario.limonciello@....com>, Vijendar Mukunda <Vijendar.Mukunda@....com>
Subject: [PATCH] soundwire: amd: clear wake enable register for power off mode

As per design for power off mode, clear the wake enable register during
resume sequence.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@....com>
---
 drivers/soundwire/amd_manager.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soundwire/amd_manager.c b/drivers/soundwire/amd_manager.c
index 5a4bfaef65fb..96a3aa6da711 100644
--- a/drivers/soundwire/amd_manager.c
+++ b/drivers/soundwire/amd_manager.c
@@ -1190,6 +1190,7 @@ static int __maybe_unused amd_resume_runtime(struct device *dev)
 	if (amd_manager->power_mode_mask & AMD_SDW_CLK_STOP_MODE) {
 		return amd_sdw_clock_stop_exit(amd_manager);
 	} else if (amd_manager->power_mode_mask & AMD_SDW_POWER_OFF_MODE) {
+		writel(0x00, amd_manager->acp_mmio + ACP_SW_WAKE_EN(amd_manager->instance));
 		val = readl(amd_manager->mmio + ACP_SW_CLK_RESUME_CTRL);
 		if (val) {
 			val |= AMD_SDW_CLK_RESUME_REQ;
-- 
2.34.1