| 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
| ||
|
Message-ID: <20240327063143.2266464-1-Vijendar.Mukunda@amd.com>
Date: Wed, 27 Mar 2024 12:01:42 +0530
From: Vijendar Mukunda <Vijendar.Mukunda@....com>
To: <vkoul@...nel.org>
CC: <broonie@...nel.org>, <alsa-devel@...a-project.org>,
<pierre-louis.bossart@...ux.intel.com>, <Basavaraj.Hiregoudar@....com>,
<Sunil-kumar.Dommati@....com>, <venkataprasad.potturu@....com>, "Vijendar
Mukunda" <Vijendar.Mukunda@....com>, Bard Liao
<yung-chuan.liao@...ux.intel.com>, Sanyog Kale <sanyog.r.kale@...el.com>,
open list <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] soundwire: amd: use inline function for register update
Define common inline function for register update.
Use this inline function for updating SoundWire Pad registers
and enable/disable SoundWire interrupt control registers.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@....com>
---
drivers/soundwire/amd_init.c | 36 +++++++++++++++------------------
drivers/soundwire/amd_init.h | 8 ++++++++
drivers/soundwire/amd_manager.c | 13 ++++++------
3 files changed, 30 insertions(+), 27 deletions(-)
diff --git a/drivers/soundwire/amd_init.c b/drivers/soundwire/amd_init.c
index e45dc8261ab1..4cd26f3a21f5 100644
--- a/drivers/soundwire/amd_init.c
+++ b/drivers/soundwire/amd_init.c
@@ -17,42 +17,38 @@
#define ACP_PAD_PULLDOWN_CTRL 0x0001448
#define ACP_SW_PAD_KEEPER_EN 0x0001454
-#define AMD_SDW_PAD_PULLDOWN_CTRL_ENABLE_MASK 0x7f9a
-#define AMD_SDW0_PAD_PULLDOWN_CTRL_ENABLE_MASK 0x7f9f
-#define AMD_SDW1_PAD_PULLDOWN_CTRL_ENABLE_MASK 0x7ffa
-#define AMD_SDW0_PAD_EN_MASK 1
-#define AMD_SDW1_PAD_EN_MASK 0x10
-#define AMD_SDW_PAD_EN_MASK (AMD_SDW0_PAD_EN_MASK | AMD_SDW1_PAD_EN_MASK)
+#define AMD_SDW0_PAD_CTRL_MASK 0x60
+#define AMD_SDW1_PAD_CTRL_MASK 5
+#define AMD_SDW_PAD_CTRL_MASK (AMD_SDW0_PAD_CTRL_MASK | AMD_SDW1_PAD_CTRL_MASK)
+#define AMD_SDW0_PAD_EN 1
+#define AMD_SDW1_PAD_EN 0x10
+#define AMD_SDW_PAD_EN (AMD_SDW0_PAD_EN | AMD_SDW1_PAD_EN)
static int amd_enable_sdw_pads(void __iomem *mmio, u32 link_mask, struct device *dev)
{
- u32 val;
- u32 pad_keeper_en_mask, pad_pulldown_ctrl_mask;
+ u32 pad_keeper_en, pad_pulldown_ctrl_mask;
switch (link_mask) {
case 1:
- pad_keeper_en_mask = AMD_SDW0_PAD_EN_MASK;
- pad_pulldown_ctrl_mask = AMD_SDW0_PAD_PULLDOWN_CTRL_ENABLE_MASK;
+ pad_keeper_en = AMD_SDW0_PAD_EN;
+ pad_pulldown_ctrl_mask = AMD_SDW0_PAD_CTRL_MASK;
break;
case 2:
- pad_keeper_en_mask = AMD_SDW1_PAD_EN_MASK;
- pad_pulldown_ctrl_mask = AMD_SDW1_PAD_PULLDOWN_CTRL_ENABLE_MASK;
+ pad_keeper_en = AMD_SDW1_PAD_EN;
+ pad_pulldown_ctrl_mask = AMD_SDW1_PAD_CTRL_MASK;
break;
case 3:
- pad_keeper_en_mask = AMD_SDW_PAD_EN_MASK;
- pad_pulldown_ctrl_mask = AMD_SDW_PAD_PULLDOWN_CTRL_ENABLE_MASK;
+ pad_keeper_en = AMD_SDW_PAD_EN;
+ pad_pulldown_ctrl_mask = AMD_SDW_PAD_CTRL_MASK;
break;
default:
dev_err(dev, "No SDW Links are enabled\n");
return -ENODEV;
}
- val = readl(mmio + ACP_SW_PAD_KEEPER_EN);
- val |= pad_keeper_en_mask;
- writel(val, mmio + ACP_SW_PAD_KEEPER_EN);
- val = readl(mmio + ACP_PAD_PULLDOWN_CTRL);
- val &= pad_pulldown_ctrl_mask;
- writel(val, mmio + ACP_PAD_PULLDOWN_CTRL);
+ amd_updatel(mmio, ACP_SW_PAD_KEEPER_EN, pad_keeper_en, pad_keeper_en);
+ amd_updatel(mmio, ACP_PAD_PULLDOWN_CTRL, pad_pulldown_ctrl_mask, 0);
+
return 0;
}
diff --git a/drivers/soundwire/amd_init.h b/drivers/soundwire/amd_init.h
index 928b0c707162..5e7b43836a37 100644
--- a/drivers/soundwire/amd_init.h
+++ b/drivers/soundwire/amd_init.h
@@ -10,4 +10,12 @@
int amd_sdw_manager_start(struct amd_sdw_manager *amd_manager);
+static inline void amd_updatel(void __iomem *mmio, int offset, u32 mask, u32 val)
+{
+ u32 tmp;
+
+ tmp = readl(mmio + offset);
+ tmp = (tmp & ~mask) | val;
+ writel(tmp, mmio + offset);
+}
#endif
diff --git a/drivers/soundwire/amd_manager.c b/drivers/soundwire/amd_manager.c
index 7cd24bd8e224..1066d87aa011 100644
--- a/drivers/soundwire/amd_manager.c
+++ b/drivers/soundwire/amd_manager.c
@@ -89,9 +89,8 @@ static void amd_enable_sdw_interrupts(struct amd_sdw_manager *amd_manager)
u32 val;
mutex_lock(amd_manager->acp_sdw_lock);
- val = readl(amd_manager->acp_mmio + ACP_EXTERNAL_INTR_CNTL(amd_manager->instance));
- val |= sdw_manager_reg_mask_array[amd_manager->instance];
- writel(val, amd_manager->acp_mmio + ACP_EXTERNAL_INTR_CNTL(amd_manager->instance));
+ val = sdw_manager_reg_mask_array[amd_manager->instance];
+ amd_updatel(amd_manager->acp_mmio, ACP_EXTERNAL_INTR_CNTL(amd_manager->instance), val, val);
mutex_unlock(amd_manager->acp_sdw_lock);
writel(AMD_SDW_IRQ_MASK_0TO7, amd_manager->mmio +
@@ -103,12 +102,12 @@ static void amd_enable_sdw_interrupts(struct amd_sdw_manager *amd_manager)
static void amd_disable_sdw_interrupts(struct amd_sdw_manager *amd_manager)
{
- u32 val;
+ u32 irq_mask;
mutex_lock(amd_manager->acp_sdw_lock);
- val = readl(amd_manager->acp_mmio + ACP_EXTERNAL_INTR_CNTL(amd_manager->instance));
- val &= ~sdw_manager_reg_mask_array[amd_manager->instance];
- writel(val, amd_manager->acp_mmio + ACP_EXTERNAL_INTR_CNTL(amd_manager->instance));
+ irq_mask = sdw_manager_reg_mask_array[amd_manager->instance];
+ amd_updatel(amd_manager->acp_mmio, ACP_EXTERNAL_INTR_CNTL(amd_manager->instance),
+ irq_mask, 0);
mutex_unlock(amd_manager->acp_sdw_lock);
writel(0x00, amd_manager->mmio + ACP_SW_STATE_CHANGE_STATUS_MASK_0TO7);
--
2.34.1
Powered by blists - more mailing lists