spi: sirf: assign spi_master's max_speed_hz member
if spi device has no frequency, spi core will setup the default frequency
to max_speed_hz of spi_master according to
int spi_setup(struct spi_device *spi)
{
...
if (!spi->max_speed_hz)
spi->max_speed_hz = spi->master->max_speed_hz;
...
}
this patch moves CSR SiRFSoC SPI frequency set to follow SPI core behaviour.
Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c
index 39e2c0a..bf3c6bc 100644
--- a/drivers/spi/spi-sirf.c
+++ b/drivers/spi/spi-sirf.c
@@ -134,6 +134,7 @@
ALIGNED(x->len) && (x->len < 2 * PAGE_SIZE))
#define SIRFSOC_MAX_CMD_BYTES 4
+#define SIRFSOC_SPI_DEFAULT_FRQ 1000000
struct sirfsoc_spi {
struct spi_bitbang bitbang;
@@ -629,9 +630,6 @@
{
struct sirfsoc_spi *sspi;
- if (!spi->max_speed_hz)
- return -EINVAL;
-
sspi = spi_master_get_devdata(spi->master);
if (spi->cs_gpio == -ENOENT)
@@ -683,6 +681,7 @@
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST | SPI_CS_HIGH;
master->bits_per_word_mask = SPI_BPW_MASK(8) | SPI_BPW_MASK(12) |
SPI_BPW_MASK(16) | SPI_BPW_MASK(32);
+ master->max_speed_hz = SIRFSOC_SPI_DEFAULT_FRQ;
sspi->bitbang.master->dev.of_node = pdev->dev.of_node;
/* request DMA channels */