linux-kernel - [PATCH 2/4] ARM OMAP2+ GPMC: always program GPMCFCLKDIVIDER

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Message-Id: <1424101741-24152-3-git-send-email-rabel@cit-ec.uni-bielefeld.de>
Date:	Mon, 16 Feb 2015 16:48:59 +0100
From:	Robert ABEL <rabel@...-ec.uni-bielefeld.de>
To:	khilman@...prootsystems.com, tony@...mide.com,
	linux@....linux.org.uk, linux-omap@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Robert ABEL <rabel@...-ec.uni-bielefeld.de>
Subject: [PATCH 2/4] ARM OMAP2+ GPMC: always program GPMCFCLKDIVIDER

GPMC uses GPMCFCLKDIVIDER during synchronous as well as asynchronous accesses
in conjunction with WAITMONITORINGTIME. Thus, it's wrong to only program it for
synchronous accesses. Remove the conditional.

Signed-off-by: Robert ABEL <rabel@...-ec.uni-bielefeld.de>
---
 arch/arm/mach-omap2/gpmc.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 5c3639c..bae4a20 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -382,19 +382,14 @@ int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t)
 	if (gpmc_capability & GPMC_HAS_WR_ACCESS)
 		GPMC_SET_ONE(GPMC_CS_CONFIG6, 24, 28, wr_access);
 
-	/* caller is expected to have initialized CONFIG1 to cover
-	 * at least sync vs async
-	 */
 	l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
-	if (l & (GPMC_CONFIG1_READTYPE_SYNC | GPMC_CONFIG1_WRITETYPE_SYNC)) {
 #ifdef DEBUG
-		printk(KERN_INFO "GPMC CS%d CLK period is %lu ns (div %d)\n",
-				cs, (div * gpmc_get_fclk_period()) / 1000, div);
+	printk(KERN_INFO "GPMC CS%d CLK period is %lu ns (div %d)\n",
+	       cs, (div * gpmc_get_fclk_period()) / 1000, div);
 #endif
-		l &= ~0x03;
-		l |= (div - 1);
-		gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, l);
-	}
+	l &= ~0x03;
+	l |= (div - 1);
+	gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, l);
 
 	gpmc_cs_bool_timings(cs, &t->bool_timings);
 
-- 
2.3.0

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