linux-kernel - [PATCH V2] ARM: tegra: Re-add removed SoC id macro to tegra

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Message-Id: <1412796255-10589-1-git-send-email-digetx@gmail.com>
Date:	Wed,  8 Oct 2014 23:24:15 +0400
From:	Dmitry Osipenko <digetx@...il.com>
To:	swarren@...dotorg.org, josephl@...dia.com,
	thierry.reding@...il.com, balbi@...com, digetx@...il.com
Cc:	linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH V2] ARM: tegra: Re-add removed SoC id macro to tegra_resume()

Commit d127e9c5c5bc1ee22a7b1fe804397cddd132f756 ("ARM: tegra: make tegra_resume
can work with current and later chips") removed tegra_get_soc_id macro leaving
used cpu register unassigned and as result causing execution of unintended code
on tegra20. Fix it by re-adding macro.

Fixes: d127e9c (ARM: tegra: make tegra_resume can work with current and later chips)
Cc: <stable@...r.kernel.org> # v3.13+
Reviewed-by: Felipe Balbi <balbi@...com>
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
V2: added Cc's for lakml and stable, added "Reviewed-by:" Felipe Balbi

 arch/arm/mach-tegra/reset-handler.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S
index 7b2baab..71be4af 100644
--- a/arch/arm/mach-tegra/reset-handler.S
+++ b/arch/arm/mach-tegra/reset-handler.S
@@ -51,6 +51,7 @@ ENTRY(tegra_resume)
  THUMB(	it	ne )
 	bne	cpu_resume			@ no
 
+	tegra_get_soc_id TEGRA_APB_MISC_BASE, r6
 	/* Are we on Tegra20? */
 	cmp	r6, #TEGRA20
 	beq	1f				@ Yes
-- 
2.1.1

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