From baec8eb323cd59d1bfe148a287610819d5897838 Mon Sep 17 00:00:00 2001 From: Ionela Voinescu Date: Sun, 22 Jul 2018 23:20:06 +0200 Subject: [PATCH] spi: img-spfi: Set device select bits for SPFI port state MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Even if the chip select line is not controlled by the SPFI hardware, the device select bits need to be set to specify the chip select line in use for the hardware to know what parameters to use for the current transfer. Signed-off-by: Ionela Voinescu Signed-off-by: Andreas Färber Signed-off-by: Mark Brown --- drivers/spi/spi-img-spfi.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c index 7a37090..e6eb979 100644 --- a/drivers/spi/spi-img-spfi.c +++ b/drivers/spi/spi-img-spfi.c @@ -419,6 +419,9 @@ static int img_spfi_prepare(struct spi_master *master, struct spi_message *msg) u32 val; val = spfi_readl(spfi, SPFI_PORT_STATE); + val &= ~(SPFI_PORT_STATE_DEV_SEL_MASK << + SPFI_PORT_STATE_DEV_SEL_SHIFT); + val |= msg->spi->chip_select << SPFI_PORT_STATE_DEV_SEL_SHIFT; if (msg->spi->mode & SPI_CPHA) val |= SPFI_PORT_STATE_CK_PHASE(msg->spi->chip_select); else -- 2.7.4