From 739062a9f1e9a77a9687c8fd30f8e5dd12ec70be Mon Sep 17 00:00:00 2001 From: Jonathan Marek Date: Thu, 20 Nov 2025 16:12:01 -0500 Subject: [PATCH] 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 Link: https://patch.msgid.link/20251120211204.24078-4-jonathan@marek.ca Signed-off-by: Mark Brown --- drivers/spi/spi-geni-qcom.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c index 575b112d4acb1..53229150b86b5 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; } -- 2.47.3