diff options
| author | Jonathan Marek <jonathan@marek.ca> | 2025-11-21 00:12:01 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-12-14 13:39:24 +0300 |
| commit | 739062a9f1e9a77a9687c8fd30f8e5dd12ec70be (patch) | |
| tree | 9035174b828b5ac5c008b0d8225b78409acab5c9 | |
| parent | fb2bbe3838728f572485706677590e4fc41eec5c (diff) | |
| download | linux-739062a9f1e9a77a9687c8fd30f8e5dd12ec70be.tar.xz | |
spi-geni-qcom: initialize mode related registers to 0
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>
| -rw-r--r-- | drivers/spi/spi-geni-qcom.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c index 575b112d4acb..53229150b86b 100644 --- a/drivers/spi/spi-geni-qcom.c +++ b/drivers/spi/spi-geni-qcom.c @@ -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; } |