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* [PATCH] ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node
@ 2016-02-18 10:21 ` Romain Izard
  0 siblings, 0 replies; 8+ messages in thread
From: Romain Izard @ 2016-02-18 10:21 UTC (permalink / raw)
  To: linux-kernel, linux-arm-kernel, devicetree, Nicolas Ferre
  Cc: Alexandre Belloni, Linus Walleij, Linux GPIO List, Romain Izard

All pinctrl nodes for the Atmel pinctrl controller need to have their
bias configuration explicitly defined. Otherwise, the pinctrl mapping
is not valid.

It works for now as the pinctrl driver proceeds even with invalid
mappings, but this can become an issue, if the pinctrl driver starts
to require valid mappings. Additionally, the pin is not protected from
being remapped later by an other driver.

There is an external 1kΩ pull-up to 3.3V, so no bias is required on
the Ethernet PHY's interrupt line.

Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
---
 arch/arm/boot/dts/at91-sama5d2_xplained.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index e683856c507c..75341eec2dfd 100644
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -308,6 +308,7 @@
 
 				pinctrl_macb0_phy_irq: macb0_phy_irq {
 					pinmux = <PIN_PC9__GPIO>;
+					bias-disable;
 				};
 
 				pinctrl_pdmic_default: pdmic_default {
-- 
2.5.0

^ permalink raw reply related	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2016-03-01  9:48 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-02-18 10:21 [PATCH] ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node Romain Izard
2016-02-18 10:21 ` Romain Izard
2016-02-19 13:19 ` Ludovic Desroches
2016-02-19 13:19   ` Ludovic Desroches
2016-02-19 13:19   ` Ludovic Desroches
2016-03-01  9:48 ` Nicolas Ferre
2016-03-01  9:48   ` Nicolas Ferre
2016-03-01  9:48   ` Nicolas Ferre

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