Unverified Commit 36c2530e authored by Marek Vasut's avatar Marek Vasut Committed by Mark Brown
Browse files

spi: imx: mx51-ecspi: Fix CONFIGREG delay comment 



For (2 * 1000000) / min_speed_hz < 10 to be true in naturals with zero,
the min_speed_hz must be above 200000 (i.e. 200001 rounds down to 9, so
the condition triggers). Update the comment. No functional change.

Fixes: 6fd8b850 ("spi: spi-imx: Fix out-of-order CS/SCLK operation at low speeds")
Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Mark Brown <broonie@kernel.org>
Acked-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20210727160428.7673-1-marex@denx.de


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 53ca18ac

drivers/spi/spi-imx.c

+1 −1
Original line number Diff line number Diff line
@@ -593,7 +593,7 @@ static int mx51_ecspi_prepare_message(struct spi_imx_data *spi_imx, 
	}



	delay = (2 * 1000000) / min_speed_hz;

	if (likely(delay < 10))	/* SCLK is faster than 100 kHz */

	if (likely(delay < 10))	/* SCLK is faster than 200 kHz */

		udelay(delay);

	else			/* SCLK is _very_ slow */

		usleep_range(delay, delay + 10);