[3.16.y-ckt stable] Patch "ARM: OMAP4: PM: Only do static dependency configuration in omap4_init_static_deps" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    ARM: OMAP4: PM: Only do static dependency configuration in omap4_init_static_deps

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt5.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 3468cc88d1491dcbcec1765a161bf5ea127f18e3 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm at ti.com>
Date: Tue, 21 Oct 2014 15:22:28 -0500
Subject: ARM: OMAP4: PM: Only do static dependency configuration in
 omap4_init_static_deps

commit 9008d83fe9dc2e0f19b8ba17a423b3759d8e0fd7 upstream.

Commit 705814b5ea6f ("ARM: OMAP4+: PM: Consolidate OMAP4 PM code to
re-use it for OMAP5")

Moved logic generic for OMAP5+ as part of the init routine by
introducing omap4_pm_init. However, the patch left the powerdomain
initial setup, an unused omap4430 es1.0 check and a spurious log
"Power Management for TI OMAP4." in the original code.

Remove the duplicate code which is already present in omap4_pm_init from
omap4_init_static_deps.

As part of this change, also move the u-boot version print out of the
static dependency function to the omap4_pm_init function.

Fixes: 705814b5ea6f ("ARM: OMAP4+: PM: Consolidate OMAP4 PM code to re-use it for OMAP5")
Signed-off-by: Nishanth Menon <nm at ti.com>
Signed-off-by: Tony Lindgren <tony at atomide.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 arch/arm/mach-omap2/pm44xx.c | 29 +++++++++--------------------
 1 file changed, 9 insertions(+), 20 deletions(-)

diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index 0dda6cf8b855..05213880c972 100644
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c
@@ -150,26 +150,6 @@ static inline int omap4_init_static_deps(void)
 	struct clockdomain *ducati_clkdm, *l3_2_clkdm;
 	int ret = 0;

-	if (omap_rev() == OMAP4430_REV_ES1_0) {
-		WARN(1, "Power Management not supported on OMAP4430 ES1.0\n");
-		return -ENODEV;
-	}
-
-	pr_err("Power Management for TI OMAP4.\n");
-	/*
-	 * OMAP4 chip PM currently works only with certain (newer)
-	 * versions of bootloaders. This is due to missing code in the
-	 * kernel to properly reset and initialize some devices.
-	 * http://www.spinics.net/lists/arm-kernel/msg218641.html
-	 */
-	pr_warn("OMAP4 PM: u-boot >= v2012.07 is required for full PM support\n");
-
-	ret = pwrdm_for_each(pwrdms_setup, NULL);
-	if (ret) {
-		pr_err("Failed to setup powerdomains\n");
-		return ret;
-	}
-
 	/*
 	 * The dynamic dependency between MPUSS -> MEMIF and
 	 * MPUSS -> L4_PER/L3_* and DUCATI -> L3_* doesn't work as
@@ -233,6 +213,15 @@ int __init omap4_pm_init(void)

 	pr_info("Power Management for TI OMAP4+ devices.\n");

+	/*
+	 * OMAP4 chip PM currently works only with certain (newer)
+	 * versions of bootloaders. This is due to missing code in the
+	 * kernel to properly reset and initialize some devices.
+	 * http://www.spinics.net/lists/arm-kernel/msg218641.html
+	 */
+	if (cpu_is_omap44xx())
+		pr_warn("OMAP4 PM: u-boot >= v2012.07 is required for full PM support\n");
+
 	ret = pwrdm_for_each(pwrdms_setup, NULL);
 	if (ret) {
 		pr_err("Failed to setup powerdomains.\n");
--
2.1.4