summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/i3c/master/mipi-i3c-hci/core.c2
-rw-r--r--drivers/i3c/master/mipi-i3c-hci/dma.c14
-rw-r--r--drivers/i3c/master/mipi-i3c-hci/hci.h1
-rw-r--r--drivers/i3c/master/mipi-i3c-hci/pio.c16
4 files changed, 16 insertions, 17 deletions
diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index 229f7f44cfb7..e7b36abf1215 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -631,6 +631,8 @@ static int i3c_hci_init(struct i3c_hci *hci)
if (ret)
return ret;
+ spin_lock_init(&hci->lock);
+
/*
* Now let's reset the hardware.
* SOFT_RST must be clear before we write to it.
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c
index 00809f19f69a..9a1cc531ac98 100644
--- a/drivers/i3c/master/mipi-i3c-hci/dma.c
+++ b/drivers/i3c/master/mipi-i3c-hci/dma.c
@@ -133,7 +133,6 @@ struct hci_rh_data {
unsigned int xfer_struct_sz, resp_struct_sz, ibi_status_sz, ibi_chunk_sz;
unsigned int done_ptr, ibi_chunk_ptr;
struct hci_xfer **src_xfers;
- spinlock_t lock;
struct completion op_done;
};
@@ -240,7 +239,6 @@ static int hci_dma_init(struct i3c_hci *hci)
goto err_out;
rh = &rings->headers[i];
rh->regs = hci->base_regs + offset;
- spin_lock_init(&rh->lock);
init_completion(&rh->op_done);
rh->xfer_entries = XFER_RING_ENTRIES;
@@ -470,12 +468,12 @@ static int hci_dma_queue_xfer(struct i3c_hci *hci,
}
/* take care to update the hardware enqueue pointer atomically */
- spin_lock_irq(&rh->lock);
+ spin_lock_irq(&hci->lock);
op1_val = rh_reg_read(RING_OPERATION1);
op1_val &= ~RING_OP1_CR_ENQ_PTR;
op1_val |= FIELD_PREP(RING_OP1_CR_ENQ_PTR, enqueue_ptr);
rh_reg_write(RING_OPERATION1, op1_val);
- spin_unlock_irq(&rh->lock);
+ spin_unlock_irq(&hci->lock);
return 0;
}
@@ -573,12 +571,12 @@ static void hci_dma_xfer_done(struct i3c_hci *hci, struct hci_rh_data *rh)
}
/* take care to update the software dequeue pointer atomically */
- spin_lock(&rh->lock);
+ spin_lock(&hci->lock);
op1_val = rh_reg_read(RING_OPERATION1);
op1_val &= ~RING_OP1_CR_SW_DEQ_PTR;
op1_val |= FIELD_PREP(RING_OP1_CR_SW_DEQ_PTR, done_ptr);
rh_reg_write(RING_OPERATION1, op1_val);
- spin_unlock(&rh->lock);
+ spin_unlock(&hci->lock);
}
static int hci_dma_request_ibi(struct i3c_hci *hci, struct i3c_dev_desc *dev,
@@ -759,12 +757,12 @@ static void hci_dma_process_ibi(struct i3c_hci *hci, struct hci_rh_data *rh)
done:
/* take care to update the ibi dequeue pointer atomically */
- spin_lock(&rh->lock);
+ spin_lock(&hci->lock);
op1_val = rh_reg_read(RING_OPERATION1);
op1_val &= ~RING_OP1_IBI_DEQ_PTR;
op1_val |= FIELD_PREP(RING_OP1_IBI_DEQ_PTR, deq_ptr);
rh_reg_write(RING_OPERATION1, op1_val);
- spin_unlock(&rh->lock);
+ spin_unlock(&hci->lock);
/* update the chunk pointer */
rh->ibi_chunk_ptr += ibi_chunks;
diff --git a/drivers/i3c/master/mipi-i3c-hci/hci.h b/drivers/i3c/master/mipi-i3c-hci/hci.h
index 249ccb13c909..5656d43a1009 100644
--- a/drivers/i3c/master/mipi-i3c-hci/hci.h
+++ b/drivers/i3c/master/mipi-i3c-hci/hci.h
@@ -45,6 +45,7 @@ struct i3c_hci {
const struct hci_io_ops *io;
void *io_data;
const struct hci_cmd_ops *cmd;
+ spinlock_t lock;
atomic_t next_cmd_tid;
u32 caps;
unsigned int quirks;
diff --git a/drivers/i3c/master/mipi-i3c-hci/pio.c b/drivers/i3c/master/mipi-i3c-hci/pio.c
index 710faa46a00f..67dc34163d51 100644
--- a/drivers/i3c/master/mipi-i3c-hci/pio.c
+++ b/drivers/i3c/master/mipi-i3c-hci/pio.c
@@ -124,7 +124,6 @@ struct hci_pio_ibi_data {
};
struct hci_pio_data {
- spinlock_t lock;
struct hci_xfer *curr_xfer, *xfer_queue;
struct hci_xfer *curr_rx, *rx_queue;
struct hci_xfer *curr_tx, *tx_queue;
@@ -146,7 +145,6 @@ static int hci_pio_init(struct i3c_hci *hci)
return -ENOMEM;
hci->io_data = pio;
- spin_lock_init(&pio->lock);
size_val = pio_reg_read(QUEUE_SIZE);
dev_info(&hci->master.dev, "CMD/RESP FIFO = %ld entries\n",
@@ -609,7 +607,7 @@ static int hci_pio_queue_xfer(struct i3c_hci *hci, struct hci_xfer *xfer, int n)
xfer[i].data_left = xfer[i].data_len;
}
- spin_lock_irq(&pio->lock);
+ spin_lock_irq(&hci->lock);
prev_queue_tail = pio->xfer_queue;
pio->xfer_queue = &xfer[n - 1];
if (pio->curr_xfer) {
@@ -623,7 +621,7 @@ static int hci_pio_queue_xfer(struct i3c_hci *hci, struct hci_xfer *xfer, int n)
pio_reg_read(INTR_STATUS),
pio_reg_read(INTR_SIGNAL_ENABLE));
}
- spin_unlock_irq(&pio->lock);
+ spin_unlock_irq(&hci->lock);
return 0;
}
@@ -694,14 +692,14 @@ static bool hci_pio_dequeue_xfer(struct i3c_hci *hci, struct hci_xfer *xfer, int
struct hci_pio_data *pio = hci->io_data;
int ret;
- spin_lock_irq(&pio->lock);
+ spin_lock_irq(&hci->lock);
dev_dbg(&hci->master.dev, "n=%d status=%#x/%#x", n,
pio_reg_read(INTR_STATUS), pio_reg_read(INTR_SIGNAL_ENABLE));
dev_dbg(&hci->master.dev, "main_status = %#x/%#x",
readl(hci->base_regs + 0x20), readl(hci->base_regs + 0x28));
ret = hci_pio_dequeue_xfer_common(hci, pio, xfer, n);
- spin_unlock_irq(&pio->lock);
+ spin_unlock_irq(&hci->lock);
return ret;
}
@@ -994,13 +992,13 @@ static bool hci_pio_irq_handler(struct i3c_hci *hci)
struct hci_pio_data *pio = hci->io_data;
u32 status;
- spin_lock(&pio->lock);
+ spin_lock(&hci->lock);
status = pio_reg_read(INTR_STATUS);
dev_dbg(&hci->master.dev, "PIO_INTR_STATUS %#x/%#x",
status, pio->enabled_irqs);
status &= pio->enabled_irqs | STAT_LATENCY_WARNINGS;
if (!status) {
- spin_unlock(&pio->lock);
+ spin_unlock(&hci->lock);
return false;
}
@@ -1036,7 +1034,7 @@ static bool hci_pio_irq_handler(struct i3c_hci *hci)
pio_reg_write(INTR_SIGNAL_ENABLE, pio->enabled_irqs);
dev_dbg(&hci->master.dev, "PIO_INTR_STATUS %#x/%#x",
pio_reg_read(INTR_STATUS), pio_reg_read(INTR_SIGNAL_ENABLE));
- spin_unlock(&pio->lock);
+ spin_unlock(&hci->lock);
return true;
}
generated by cgit v1.2.3 (git 2.46.0) at 2026-04-14 19:56:19 +0000