linux-kernel - [PATCH v1 1/1] spi: bitbang: Use NSEC_PER

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Message-ID: <20240502154825.2752464-1-andriy.shevchenko@linux.intel.com>
Date: Thu,  2 May 2024 18:48:25 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Mark Brown <broonie@...nel.org>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	linux-spi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/1] spi: bitbang: Use NSEC_PER_*SEC rather than hard coding

Use NSEC_PER_*SEC rather than the hard coded value of 1000s.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/spi/spi-bitbang.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c
index a0e2204fc039..c11af39c9842 100644
--- a/drivers/spi/spi-bitbang.c
+++ b/drivers/spi/spi-bitbang.c
@@ -11,6 +11,7 @@
 #include <linux/errno.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
+#include <linux/time64.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
@@ -168,8 +169,8 @@ int spi_bitbang_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
 	if (!hz)
 		hz = spi->max_speed_hz;
 	if (hz) {
-		cs->nsecs = (1000000000/2) / hz;
-		if (cs->nsecs > (MAX_UDELAY_MS * 1000 * 1000))
+		cs->nsecs = (NSEC_PER_SEC / 2) / hz;
+		if (cs->nsecs > (MAX_UDELAY_MS * NSEC_PER_MSEC))
 			return -EINVAL;
 	}
 
-- 
2.43.0.rc1.1336.g36b5255a03ac