cirros-testvm/src-cirros/buildroot-2015.05/board/calao/snowball/linux-3.4.patch

   1 From 3d1a9b44b9dcd2c0f5d54c09596c96c0524d8340 Mon Sep 17 00:00:00 2001
   2 From: Gregory Hermant <gregory.hermant@calao-systems.com>
   3 Date: Tue, 13 Nov 2012 11:47:41 +0100
   4 Subject: [PATCH] trace-debug[stm]: Fix for BT/WLAN instability
   5
   6 Pins under mop500_ske_pins array are used for different
   7 functionalities in snowball. Ex: GPIO161 pin configured
   8 for keypad here must stay configured as GPIO alternate
   9 function for operating PMU_EN pin of BT/WLAN chip in snowball.
  10 So forbid configuring these pins, for snowball
  11
  12 Signed-off-by: Rajanikanth H.V <rajanikanth.hv@stericsson.com>
  13 Signed-off-by: Gregory Hermant <gregory.hermant@calao-systems.com>
  14 ---
  15  arch/arm/mach-ux500/board-mop500-stm.c |    7 +++++--
  16  1 file changed, 5 insertions(+), 2 deletions(-)
  17
  18 diff --git a/arch/arm/mach-ux500/board-mop500-stm.c b/arch/arm/mach-ux500/board-mop500-stm.c
  19 index 1bef2a0..532fb9e 100644
  20 --- a/arch/arm/mach-ux500/board-mop500-stm.c
  21 +++ b/arch/arm/mach-ux500/board-mop500-stm.c
  22 @@ -121,7 +121,9 @@ static int stm_ste_disable_ape_on_mipi60(void)
  23         if (retval)
  24                 STM_ERR("Failed to disable MIPI60\n");
  25         else {
  26 -               retval = nmk_config_pins(ARRAY_AND_SIZE(mop500_ske_pins));
  27 +               if (!machine_is_snowball())
  28 +                       retval = nmk_config_pins(
  29 +                               ARRAY_AND_SIZE(mop500_ske_pins));
  30                 if (retval)
  31                         STM_ERR("Failed to enable SKE gpio\n");
  32         }
  33 @@ -314,7 +316,8 @@ static int stm_ste_connection(enum stm_connection_type con_type)
  34                 /* Enable altC3 on GPIO70-74 (STMMOD) and GPIO75-76 (UARTMOD) */
  35                 prcmu_enable_stm_mod_uart();
  36                 /* Enable APE on MIPI60 */
  37 -               retval = nmk_config_pins_sleep(ARRAY_AND_SIZE(mop500_ske_pins));
  38 +               if (!machine_is_snowball())
  39 +                       retval = nmk_config_pins_sleep(ARRAY_AND_SIZE(mop500_ske_pins));
  40                 if (retval)
  41                         STM_ERR("Failed to disable SKE GPIO\n");
  42                 else {
  43 --
  44 1.7.9.5
  45