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| author | Alexander Kurz <akurz@blala.de> | 2017-12-14 09:55:54 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2017-12-15 08:25:13 +0100 |
| commit | 1b23decf4f6f6a6b31e71397cfe29f001ebd0e4f (patch) | |
| tree | 977184e3d28caf918dea94482bfcc02adf4cafd5 /drivers/spi | |
| parent | 7e3d116a38ed6972ac7caf1d3085f13635e6a0fe (diff) | |
| download | barebox-1b23decf4f6f6a6b31e71397cfe29f001ebd0e4f.tar.gz barebox-1b23decf4f6f6a6b31e71397cfe29f001ebd0e4f.tar.xz | |
spi: imx: make xchg_single timeout value compatible for older boards
A call of xchg_single will issue the transfer of 24 data bits with a given
maximum frequency. Since there exist some i.MX based boards with
spi-max-frequency = <100000>, change the xchg_single timeout to still
support those boards.
Fixes: 1439cdf7c6fc ("spi: imx: add timeout to xchg_single")
Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/imx_spi.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/spi/imx_spi.c b/drivers/spi/imx_spi.c index 78198798a5..0827de7786 100644 --- a/drivers/spi/imx_spi.c +++ b/drivers/spi/imx_spi.c @@ -32,8 +32,11 @@ #include <linux/err.h> #include <clock.h> -/* time to wait for STAT_RR getting set */ -#define IMX_SPI_RR_TIMEOUT 10000 /* ns */ +/* + * time to wait for STAT_RR getting set, should allow the transfer + * of 24 bits at spi-max-frequency of 100kHz + */ +#define IMX_SPI_RR_TIMEOUT 250000 /* ns */ struct imx_spi { struct spi_master master; |