Use the read_poll_timeout marco for PSP smn_read calls.
Signed-off-by: Mastan Katragadda Mastan.Katragadda@amd.com --- sound/soc/sof/amd/acp.c | 34 +++++++++++++++------------------- sound/soc/sof/amd/acp.h | 4 ++-- 2 files changed, 17 insertions(+), 21 deletions(-)
diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c index afb505461ea1..c450931ae77e 100644 --- a/sound/soc/sof/amd/acp.c +++ b/sound/soc/sof/amd/acp.c @@ -28,12 +28,14 @@ static int smn_write(struct pci_dev *dev, u32 smn_addr, u32 data) return 0; }
-static int smn_read(struct pci_dev *dev, u32 smn_addr, u32 *data) +static int smn_read(struct pci_dev *dev, u32 smn_addr) { + u32 data = 0; + pci_write_config_dword(dev, 0x60, smn_addr); - pci_read_config_dword(dev, 0x64, data); + pci_read_config_dword(dev, 0x64, &data);
- return 0; + return data; }
static void init_dma_descriptor(struct acp_dev_data *adata) @@ -150,15 +152,13 @@ int configure_and_run_dma(struct acp_dev_data *adata, unsigned int src_addr, static int psp_mbox_ready(struct acp_dev_data *adata, bool ack) { struct snd_sof_dev *sdev = adata->dev; - int timeout; + int ret; u32 data;
- for (timeout = ACP_PSP_TIMEOUT_COUNTER; timeout > 0; timeout--) { - msleep(20); - smn_read(adata->smn_dev, MP0_C2PMSG_114_REG, &data); - if (data & MBOX_READY_MASK) - return 0; - } + ret = read_poll_timeout(smn_read, data, data & MBOX_READY_MASK, MBOX_DELAY_US, + ACP_PSP_TIMEOUT_US, false, adata->smn_dev, MP0_C2PMSG_114_REG); + if (!ret) + return 0;
dev_err(sdev->dev, "PSP error status %x\n", data & MBOX_STATUS_MASK);
@@ -177,23 +177,19 @@ static int psp_mbox_ready(struct acp_dev_data *adata, bool ack) static int psp_send_cmd(struct acp_dev_data *adata, int cmd) { struct snd_sof_dev *sdev = adata->dev; - int ret, timeout; + int ret; u32 data;
if (!cmd) return -EINVAL;
/* Get a non-zero Doorbell value from PSP */ - for (timeout = ACP_PSP_TIMEOUT_COUNTER; timeout > 0; timeout--) { - msleep(MBOX_DELAY); - smn_read(adata->smn_dev, MP0_C2PMSG_73_REG, &data); - if (data) - break; - } + ret = read_poll_timeout(smn_read, data, data, MBOX_DELAY_US, ACP_PSP_TIMEOUT_US, false, + adata->smn_dev, MP0_C2PMSG_73_REG);
- if (!timeout) { + if (ret) { dev_err(sdev->dev, "Failed to get Doorbell from MBOX %x\n", MP0_C2PMSG_73_REG); - return -EINVAL; + return ret; }
/* Check if PSP is ready for new command */ diff --git a/sound/soc/sof/amd/acp.h b/sound/soc/sof/amd/acp.h index dc624f727aa3..c3659dbc3745 100644 --- a/sound/soc/sof/amd/acp.h +++ b/sound/soc/sof/amd/acp.h @@ -61,12 +61,12 @@ #define HOST_BRIDGE_CZN 0x1630 #define HOST_BRIDGE_RMB 0x14B5 #define ACP_SHA_STAT 0x8000 -#define ACP_PSP_TIMEOUT_COUNTER 5 +#define ACP_PSP_TIMEOUT_US 1000000 #define ACP_EXT_INTR_ERROR_STAT 0x20000000 #define MP0_C2PMSG_114_REG 0x3810AC8 #define MP0_C2PMSG_73_REG 0x3810A24 #define MBOX_ACP_SHA_DMA_COMMAND 0x70000 -#define MBOX_DELAY 1000 +#define MBOX_DELAY_US 1000 #define MBOX_READY_MASK 0x80000000 #define MBOX_STATUS_MASK 0xFFFF