| Message ID | 20230921055704.1087277-9-jarkko.nikula@linux.intel.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | i3c: mipi-i3c-hci: Enabling fixes | expand |
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c index df569d1351be..6c7eef17921a 100644 --- a/drivers/i3c/master/mipi-i3c-hci/dma.c +++ b/drivers/i3c/master/mipi-i3c-hci/dma.c @@ -229,6 +229,9 @@ static int hci_dma_init(struct i3c_hci *hci) hci->io_data = rings; rings->total = nr_rings; + regval = FIELD_PREP(MAX_HEADER_COUNT, rings->total); + rhs_reg_write(CONTROL, regval); + for (i = 0; i < rings->total; i++) { u32 offset = rhs_reg_read(RHn_OFFSET(i)); @@ -329,8 +332,6 @@ static int hci_dma_init(struct i3c_hci *hci) RING_CTRL_RUN_STOP); } - regval = FIELD_PREP(MAX_HEADER_COUNT, rings->total); - rhs_reg_write(CONTROL, regval); return 0; err_out:
Number of software enabled Ring Bundles must be set before using them. Otherwise Ring will not start and may be power-gated by the Host Controller. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> --- drivers/i3c/master/mipi-i3c-hci/dma.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)