From 36c2530ea963884eeb0097169f853fdc36f16ad7 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Tue, 27 Jul 2021 18:04:28 +0200
Subject: [PATCH] spi: imx: mx51-ecspi: Fix CONFIGREG delay comment
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Git-commit: 36c2530ea963884eeb0097169f853fdc36f16ad7
Patch-mainline: v5.14-rc5
References: git-fixes
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: 6fd8b8503a0dc ("spi: spi-imx: Fix out-of-order CS/SCLK operation at low speeds")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Mark Brown <broonie@kernel.org>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20210727160428.7673-1-marex@denx.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/spi/spi-imx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 2872993550bd..fa68e9817929 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -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);
--
2.26.2