Commit 2df1de81 authored by Jarkko Nikula's avatar Jarkko Nikula Committed by Alexandre Belloni
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i3c: mipi-i3c-hci: Set IBI Status and Data Ring base addresses 



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: default avatarJarkko Nikula <jarkko.nikula@linux.intel.com>
Link: https://lore.kernel.org/r/20240628131559.502822-2-jarkko.nikula@linux.intel.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 74e931f0

drivers/i3c/master/mipi-i3c-hci/dma.c

+5 −0
Original line number Diff line number Diff line
@@ -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,