releases/4.19.51/arm-omap2-pm33xx-core-do-not-turn-off-cefuse-as-ppa-.patch

   1 From fb4c9de4016dba651888db475fca03eff3423b73 Mon Sep 17 00:00:00 2001
   2 From: Kabir Sahane <x0153567@ti.com>
   3 Date: Tue, 9 Apr 2019 08:05:17 -0700
   4 Subject: ARM: OMAP2+: pm33xx-core: Do not Turn OFF CEFUSE as PPA may be using
   5  it
   6
   7 [ Upstream commit 72aff4ecf1cb85a3c6e6b42ccbda0bc631b090b3 ]
   8
   9 This area is used to store keys by HSPPA in case of AM438x SOC. Leave it
  10 active.
  11
  12 Signed-off-by: Kabir Sahane <x0153567@ti.com>
  13 Signed-off-by: Andrew F. Davis <afd@ti.com>
  14 Signed-off-by: Tony Lindgren <tony@atomide.com>
  15 Signed-off-by: Sasha Levin <sashal@kernel.org>
  16 ---
  17  arch/arm/mach-omap2/pm33xx-core.c | 8 +++++---
  18  1 file changed, 5 insertions(+), 3 deletions(-)
  19
  20 diff --git a/arch/arm/mach-omap2/pm33xx-core.c b/arch/arm/mach-omap2/pm33xx-core.c
  21 index f4971e4a86b2..ca7026958d42 100644
  22 --- a/arch/arm/mach-omap2/pm33xx-core.c
  23 +++ b/arch/arm/mach-omap2/pm33xx-core.c
  24 @@ -51,10 +51,12 @@ static int amx3_common_init(void)
  25
  26         /* CEFUSE domain can be turned off post bootup */
  27         cefuse_pwrdm = pwrdm_lookup("cefuse_pwrdm");
  28 -       if (cefuse_pwrdm)
  29 -               omap_set_pwrdm_state(cefuse_pwrdm, PWRDM_POWER_OFF);
  30 -       else
  31 +       if (!cefuse_pwrdm)
  32                 pr_err("PM: Failed to get cefuse_pwrdm\n");
  33 +       else if (omap_type() != OMAP2_DEVICE_TYPE_GP)
  34 +               pr_info("PM: Leaving EFUSE power domain active\n");
  35 +       else
  36 +               omap_set_pwrdm_state(cefuse_pwrdm, PWRDM_POWER_OFF);
  37
  38         return 0;
  39  }
  40 --
  41 2.20.1
  42