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i3c: mipi-i3c-hci: Set number of SW enabled Ring Bundles earlier

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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>
Link: https://lore.kernel.org/r/20230921055704.1087277-9-jarkko.nikula@linux.intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Jarkko Nikula 2023-09-21 08:57:00 +03:00 committed by Alexandre Belloni
parent 4e40642cdb
commit 7ccd40edc1
1 changed files with 3 additions and 2 deletions
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5
drivers/i3c/master/mipi-i3c-hci/dma.c
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@ -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: