linux-kernel - [PATCH] mtd: fsl_ifc_nand: use msecs_to

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Date:	Fri, 13 Mar 2015 07:23:47 -0400
From:	Nicholas Mc Guire <hofrat@...dl.org>
To:	David Woodhouse <dwmw2@...radead.org>
Cc:	Brian Norris <computersforpeace@...il.com>,
	Aaron Sierra <asierra@...-inc.com>,
	Joe Schultz <jschultz@...-inc.com>,
	Wolfram Sang <wsa@...-dreams.de>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Nicholas Mc Guire <hofrat@...dl.org>
Subject: [PATCH] mtd: fsl_ifc_nand: use msecs_to_jiffies for time conversion

This is only an API consolidation and should make things more readable
it replaces var * HZ / 1000 by msecs_to_jiffies(var) which helps readability
and also handles all corner-cases properly.

Signed-off-by: Nicholas Mc Guire <hofrat@...dl.org>
---

Patch was compile tested with corenet64_smp_defconfig 
(implies CONFIG_MTD_NAND_FSL_IFC=y)

Patch is against 4.0-rc3 (localversion-next is -next-20150313

 drivers/mtd/nand/fsl_ifc_nand.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 4c05f4f..51394e5 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -317,7 +317,7 @@ static void fsl_ifc_run_command(struct mtd_info *mtd)
 
 	/* wait for command complete flag or timeout */
 	wait_event_timeout(ctrl->nand_wait, ctrl->nand_stat,
-			   IFC_TIMEOUT_MSECS * HZ/1000);
+			   msecs_to_jiffies(IFC_TIMEOUT_MSECS));
 
 	/* ctrl->nand_stat will be updated from IRQ context */
 	if (!ctrl->nand_stat)
@@ -860,7 +860,7 @@ static void fsl_ifc_sram_init(struct fsl_ifc_mtd *priv)
 
 	/* wait for command complete flag or timeout */
 	wait_event_timeout(ctrl->nand_wait, ctrl->nand_stat,
-			   IFC_TIMEOUT_MSECS * HZ/1000);
+			   msecs_to_jiffies(IFC_TIMEOUT_MSECS));
 
 	if (ctrl->nand_stat != IFC_NAND_EVTER_STAT_OPC)
 		printk(KERN_ERR "fsl-ifc: Failed to Initialise SRAM\n");
-- 
1.7.10.4

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