[PATCH 2/4] i3c: mipi-i3c-hci: Set IBI Status and Data Ring base addresses
Jarkko Nikula
jarkko.nikula at linux.intel.com
Fri Jun 28 06:15:57 PDT 2024
IBI Status and Data Ring base address registers are not set so HW
obviously cannot update those rings after In-Band Interrupt.
Set them to already allocated and mapped ring addresses.
Signed-off-by: Jarkko Nikula <jarkko.nikula at linux.intel.com>
---
drivers/i3c/master/mipi-i3c-hci/dma.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c
index 6c5964e727b3..7a56ae4a5ddf 100644
--- a/drivers/i3c/master/mipi-i3c-hci/dma.c
+++ b/drivers/i3c/master/mipi-i3c-hci/dma.c
@@ -300,6 +300,11 @@ static int hci_dma_init(struct i3c_hci *hci)
goto err_out;
}
+ rh_reg_write(IBI_STATUS_RING_BASE_LO, lower_32_bits(rh->ibi_status_dma));
+ rh_reg_write(IBI_STATUS_RING_BASE_HI, upper_32_bits(rh->ibi_status_dma));
+ rh_reg_write(IBI_DATA_RING_BASE_LO, lower_32_bits(rh->ibi_data_dma));
+ rh_reg_write(IBI_DATA_RING_BASE_HI, upper_32_bits(rh->ibi_data_dma));
+
regval = FIELD_PREP(IBI_STATUS_RING_SIZE,
rh->ibi_status_entries) |
FIELD_PREP(IBI_DATA_CHUNK_SIZE,
--
2.43.0
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