target/linux/omap/patches-3.12/797-ARM_dts_omap4-panda-es_Do_not_reset_gpio1.patch

   1 From c1bac171c4f203101611110869bd2511c8153974 Mon Sep 17 00:00:00 2001
   2 From: Nishanth Menon <nm@ti.com>
   3 Date: Thu, 10 Oct 2013 16:44:41 +0000
   4 Subject: ARM: dts: omap4-panda-es: Do not reset gpio1
   5
   6 Do not reset GPIO1 at boot-up because GPIO 7 in GPIO1 block is used on
   7 OMAP4460 PandaBoard-ES to select voltage register in TPS62361 which
   8 supplies VDD_MPU.
   9
  10 Without this, OMAP4460 PandaBoard-ES boards fail to boot-up because
  11 MPU voltage switches over to VSET0 voltage value (boot voltage) which
  12 is not sufficient to operate the device at OPP100.
  13
  14 Signed-off-by: Nishanth Menon <nm@ti.com>
  15 Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
  16 ---
  17 diff --git a/arch/arm/boot/dts/omap4-panda-es.dts b/arch/arm/boot/dts/omap4-panda-es.dts
  18 index 56c4354..816d1c9 100644
  19 --- a/arch/arm/boot/dts/omap4-panda-es.dts
  20 +++ b/arch/arm/boot/dts/omap4-panda-es.dts
  21 @@ -62,3 +62,7 @@
  22                 gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
  23         };
  24  };
  25 +
  26 +&gpio1 {
  27 +        ti,no-reset-on-init;
  28 +};
  29 --
  30 cgit v0.9.2