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authorVijendar Mukunda <Vijendar.Mukunda@amd.com>2023-03-21 08:09:00 +0300
committerVinod Koul <vkoul@kernel.org>2023-04-12 13:00:36 +0300
commit66c878838f37912ba295c41e749a25fc356341ea (patch)
tree7b5f8a9d594119854803bd9f6016968a0080a6aa /drivers/soundwire
parent81ff58ff71ad9dcddf5caffcf912cde6589d07bd (diff)
downloadlinux-66c878838f37912ba295c41e749a25fc356341ea.tar.xz
soundwire: amd: handle SoundWire wake enable interrupt
Add wake enable interrupt support for both the SoundWire manager instances. Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com> Signed-off-by: Mastan Katragadda <Mastan.Katragadda@amd.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/lkml/20230227154801.50319-8-Vijendar.Mukunda@amd.com Link: https://lore.kernel.org/r/20230321050901.115439-8-Vijendar.Mukunda@amd.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
-rw-r--r--drivers/soundwire/amd_manager.c10
-rw-r--r--drivers/soundwire/amd_manager.h1
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/soundwire/amd_manager.c b/drivers/soundwire/amd_manager.c
index 6172b3cb84d4..d55706e87d83 100644
--- a/drivers/soundwire/amd_manager.c
+++ b/drivers/soundwire/amd_manager.c
@@ -831,6 +831,13 @@ static void amd_sdw_update_slave_status(u32 status_change_0to7, u32 status_chang
}
}
+static void amd_sdw_process_wake_event(struct amd_sdw_manager *amd_manager)
+{
+ pm_request_resume(amd_manager->dev);
+ writel(0x00, amd_manager->acp_mmio + ACP_SW_WAKE_EN(amd_manager->instance));
+ writel(0x00, amd_manager->mmio + ACP_SW_STATE_CHANGE_STATUS_8TO11);
+}
+
static void amd_sdw_irq_thread(struct work_struct *work)
{
struct amd_sdw_manager *amd_manager =
@@ -842,6 +849,9 @@ static void amd_sdw_irq_thread(struct work_struct *work)
status_change_0to7 = readl(amd_manager->mmio + ACP_SW_STATE_CHANGE_STATUS_0TO7);
dev_dbg(amd_manager->dev, "[SDW%d] SDW INT: 0to7=0x%x, 8to11=0x%x\n",
amd_manager->instance, status_change_0to7, status_change_8to11);
+ if (status_change_8to11 & AMD_SDW_WAKE_STAT_MASK)
+ return amd_sdw_process_wake_event(amd_manager);
+
if (status_change_8to11 & AMD_SDW_PREQ_INTR_STAT) {
amd_sdw_read_and_process_ping_status(amd_manager);
} else {
diff --git a/drivers/soundwire/amd_manager.h b/drivers/soundwire/amd_manager.h
index b101f4536230..5f040151a259 100644
--- a/drivers/soundwire/amd_manager.h
+++ b/drivers/soundwire/amd_manager.h
@@ -189,6 +189,7 @@
#define AMD_SDW_CLK_STOP_DONE 1
#define AMD_SDW_CLK_RESUME_REQ 2
#define AMD_SDW_CLK_RESUME_DONE 3
+#define AMD_SDW_WAKE_STAT_MASK BIT(16)
static u32 amd_sdw_freq_tbl[AMD_SDW_MAX_FREQ_NUM] = {
AMD_SDW_DEFAULT_CLK_FREQ,