diff options
Diffstat (limited to 'drivers/spi/spi-axi-spi-engine.c')
| -rw-r--r-- | drivers/spi/spi-axi-spi-engine.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/spi/spi-axi-spi-engine.c b/drivers/spi/spi-axi-spi-engine.c index 3437829ef8b1..3798f96da586 100644 --- a/drivers/spi/spi-axi-spi-engine.c +++ b/drivers/spi/spi-axi-spi-engine.c @@ -228,7 +228,7 @@ static void spi_engine_compile_message(struct spi_message *msg, bool dry, bool keep_cs = false; u8 bits_per_word = 0; - clk_div = -1; + clk_div = 1; spi_engine_program_add_cmd(p, dry, SPI_ENGINE_CMD_WRITE(SPI_ENGINE_CMD_REG_CONFIG, @@ -280,6 +280,14 @@ static void spi_engine_compile_message(struct spi_message *msg, bool dry, if (!keep_cs) spi_engine_gen_cs(p, dry, spi, false); + + /* + * Restore clockdiv to default so that future gen_sleep commands don't + * have to be aware of the current register state. + */ + if (clk_div != 1) + spi_engine_program_add_cmd(p, dry, + SPI_ENGINE_CMD_WRITE(SPI_ENGINE_CMD_REG_CLK_DIV, 0)); } static void spi_engine_xfer_next(struct spi_message *msg, |