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authorBaruch Siach <baruch@tkos.co.il>2010-01-25 12:58:21 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2010-01-26 18:54:06 +0100
commitfaed40665d2d81b7e0e537d14ef680ab3da9f22d (patch)
tree506ddbba47af01284e0ea67b42578fdafd8a12d5 /arch
parent828df43f139c7fbf0d505c7b9a666d321a0f2c25 (diff)
downloadop-kernel-dev-faed40665d2d81b7e0e537d14ef680ab3da9f22d.zip
op-kernel-dev-faed40665d2d81b7e0e537d14ef680ab3da9f22d.tar.gz
mx25: fix time accounting
The gpt_clk rate function doesn't consider the PER divider. This causes a significant drift in time accounting. Fix this by introducing the correct rate calculation function. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-mx25/clock.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/mach-mx25/clock.c b/arch/arm/mach-mx25/clock.c
index 08aaa38..c003ac4 100644
--- a/arch/arm/mach-mx25/clock.c
+++ b/arch/arm/mach-mx25/clock.c
@@ -119,6 +119,11 @@ static unsigned long get_rate_nfc(struct clk *clk)
return get_rate_per(8);
}
+static unsigned long get_rate_gpt(struct clk *clk)
+{
+ return get_rate_per(5);
+}
+
static unsigned long get_rate_otg(struct clk *clk)
{
return 48000000; /* FIXME */
@@ -156,7 +161,7 @@ static void clk_cgcr_disable(struct clk *clk)
.secondary = s, \
}
-DEFINE_CLOCK(gpt_clk, 0, CCM_CGCR0, 5, get_rate_ipg, NULL, NULL);
+DEFINE_CLOCK(gpt_clk, 0, CCM_CGCR0, 5, get_rate_gpt, NULL, NULL);
DEFINE_CLOCK(uart_per_clk, 0, CCM_CGCR0, 15, get_rate_uart, NULL, NULL);
DEFINE_CLOCK(cspi1_clk, 0, CCM_CGCR1, 5, get_rate_ipg, NULL, NULL);
DEFINE_CLOCK(cspi2_clk, 0, CCM_CGCR1, 6, get_rate_ipg, NULL, NULL);
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