[PATCH 1/8] memory: emif: Correct the lpmode timeout calculation
From: Lokesh Vutla
Date: Mon Mar 11 2013 - 01:06:30 EST
The driver tries to round up the specified timeout cycles to
the next power of 2 value. But this is done wrongly.
Correcting this here.
Reported-by: Nishanth Menon <nm@xxxxxx>
Signed-off-by: Lokesh Vutla <lokeshvutla@xxxxxx>
---
drivers/memory/emif.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c
index df08736..622638c 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c
@@ -732,9 +732,9 @@ static u32 get_pwr_mgmt_ctrl(u32 freq, struct emif_data *emif, u32 ip_rev)
if (timeout < 16) {
timeout = 0;
} else {
- timeout = __fls(timeout) - 3;
if (timeout & (timeout - 1))
- timeout++;
+ timeout <<= 1;
+ timeout = __fls(timeout) - 3;
}
switch (lpmode) {
--
1.7.9.5
--
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