[PATCH 1/9] memory: emif: Correct the lpmode timeout calculation
From: Lokesh Vutla <hidden>
Date: 2012-12-10 07:09:10
Also in:
linux-omap
Subsystem:
arm/texas instrument aemif/emif drivers, memory controller drivers, the rest · Maintainers:
Santosh Shilimkar, Krzysztof Kozlowski, Linus Torvalds
The driver tries to round up the specified timeout cycles to next power of 2 value. But this is done wrongly. Correcting this here. Signed-off-by: Lokesh Vutla <redacted> --- 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 06d31c9..8589aba 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c@@ -731,9 +731,9 @@ 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