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Commit 765ee709 authored by Axel Lin's avatar Axel Lin Committed by Mark Brown
Browse files

spi: dw: Convert to let spi core validate transfer speed 



Set master->max_speed_hz then spi core will handle checking transfer speed.
So we can remove the same checking in this driver.

Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 794f61a3

drivers/spi/spi-dw.c

+1 −6
Original line number Diff line number Diff line
@@ -439,12 +439,6 @@ static void pump_transfers(unsigned long data) 


		if (transfer->speed_hz != speed) {

			speed = transfer->speed_hz;

			if (speed > dws->max_freq) {

				printk(KERN_ERR "MRST SPI0: unsupported"

					"freq: %dHz\n", speed);

				message->status = -EIO;

				goto early_exit;

			}



			/* clk_div doesn't support odd number */

			clk_div = dws->max_freq / speed;
@@ -809,6 +803,7 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws) 
	master->cleanup = dw_spi_cleanup;

	master->setup = dw_spi_setup;

	master->transfer = dw_spi_transfer;

	master->max_speed_hz = dws->max_freq;



	/* Basic HW init */

	spi_hw_init(dws);