spi/tegra: remove checks for valid speed
SPI core make sure that all transfer has proper speed set
before calling low level spi transfer. Hence, it is not
require to have check in spi driver.
Remove the check for speed validity from transfer and use it directly.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 448a8cc..9a42c15 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -269,9 +269,7 @@
u32 speed;
unsigned long command;
- speed = t->speed_hz ? t->speed_hz : spi->max_speed_hz;
- if (!speed)
- speed = tsd->spi_max_frequency;
+ speed = t->speed_hz;
if (speed != tsd->cur_speed) {
clk_set_rate(tsd->clk, speed);
tsd->cur_speed = speed;
@@ -319,6 +317,15 @@
return tegra_sflash_start_cpu_based_transfer(tsd, t);
}
+static int tegra_sflash_setup(struct spi_device *spi)
+{
+ struct tegra_sflash_data *tsd = spi_master_get_devdata(spi->master);
+
+ /* Set speed to the spi max fequency if spi device has not set */
+ spi->max_speed_hz = spi->max_speed_hz ? : tsd->spi_max_frequency;
+ return 0;
+}
+
static int tegra_sflash_transfer_one_message(struct spi_master *master,
struct spi_message *msg)
{
@@ -492,6 +499,7 @@
/* the spi->mode bits understood by this driver: */
master->mode_bits = SPI_CPOL | SPI_CPHA;
+ master->setup = tegra_sflash_setup;
master->transfer_one_message = tegra_sflash_transfer_one_message;
master->num_chipselect = MAX_CHIP_SELECT;
master->bus_num = -1;