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spi-geni-qcom: initialize mode related registers to 0

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setup_fifo_params assumes these will be zero, it won't write these
registers if the initial mode is zero.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://patch.msgid.link/20251120211204.24078-4-jonathan@marek.ca
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jonathan Marek 2025-11-20 16:12:01 -05:00 committed by Mark Brown
parent fb2bbe3838
commit 739062a9f1
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GPG Key ID: 24D68B725D5487D0
1 changed files with 6 additions and 0 deletions
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6
drivers/spi/spi-geni-qcom.c
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@ -675,6 +675,12 @@ static int spi_geni_init(struct spi_geni_master *mas)
case 0:
mas->cur_xfer_mode = GENI_SE_FIFO;
geni_se_select_mode(se, GENI_SE_FIFO);
/* setup_fifo_params assumes that these registers start with a zero value */
writel(0, se->base + SE_SPI_LOOPBACK);
writel(0, se->base + SE_SPI_DEMUX_SEL);
writel(0, se->base + SE_SPI_CPHA);
writel(0, se->base + SE_SPI_CPOL);
writel(0, se->base + SE_SPI_DEMUX_OUTPUT_INV);
ret = 0;
break;
}