Thread (11 messages) 11 messages, 3 authors, 2014-11-10

Re: [PATCH v2] pinctrl: dra: dt-bindings: Fix output pull up/down

From: Tony Lindgren <tony@atomide.com>
Date: 2014-11-10 22:29:52
Also in: linux-omap

* Nishanth Menon [off-list ref] [141105 09:12]:
On 11/03/2014 04:09 AM, Roger Quadros wrote:
quoted
For PIN_OUTPUT_PULLUP and PIN_OUTPUT_PULLDOWN we must not set the
PULL_DIS bit which disables the PULLs.

PULL_ENA is a 0 and using it in an OR operation is a NOP, so don't
use it in the PIN_OUTPUT_PULLUP/DOWN macros.

Fixes: 23d9cec07c58 ("pinctrl: dra: dt-bindings: Fix pull enable/disable")

Signed-off-by: Roger Quadros <redacted>
---
 include/dt-bindings/pinctrl/dra.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/dt-bindings/pinctrl/dra.h b/include/dt-bindings/pinctrl/dra.h
index 3d33794..7448edf 100644
--- a/include/dt-bindings/pinctrl/dra.h
+++ b/include/dt-bindings/pinctrl/dra.h
@@ -40,8 +40,8 @@
 
 /* Active pin states */
 #define PIN_OUTPUT		(0 | PULL_DIS)
-#define PIN_OUTPUT_PULLUP	(PIN_OUTPUT | PULL_ENA | PULL_UP)
-#define PIN_OUTPUT_PULLDOWN	(PIN_OUTPUT | PULL_ENA)
+#define PIN_OUTPUT_PULLUP	(PULL_UP)
+#define PIN_OUTPUT_PULLDOWN	(0)
 #define PIN_INPUT		(INPUT_EN | PULL_DIS)
 #define PIN_INPUT_SLEW		(INPUT_EN | SLEWCONTROL)
 #define PIN_INPUT_PULLUP	(PULL_ENA | INPUT_EN | PULL_UP)

There might be additional updates needed to DRA7 pinctrl sequencing
requirements based on latest documentation:

http://www.ti.com/lit/ug/spruhz6/spruhz6.pdf#page=4004&zoom=auto,0,274.1

But, that has nothing to do with the bug that is currently being fixed
in this patch,.

So, for the record:
Acked-by: Nishanth Menon <nm@ti.com>
OK applying into omap-for-v3.18/fixes thanks.

Tony
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