1 files changed, 77 insertions, 0 deletions

diff --git a/extras/recipes-kernel/linux/linux-omap-2.6.39/pm/linux-omap-2.6.39-ti-pm-wip-cpuidle/0001-OMAP2-clockdomain-Add-an-api-to-read-idle-mode.patch b/extras/recipes-kernel/linux/linux-omap-2.6.39/pm/linux-omap-2.6.39-ti-pm-wip-cpuidle/0001-OMAP2-clockdomain-Add-an-api-to-read-idle-mode.patch
new file mode 100644
index 00000000..d9b05173
--- /dev/null
+++ b/extras/recipes-kernel/linux/linux-omap-2.6.39/pm/linux-omap-2.6.39-ti-pm-wip-cpuidle/0001-OMAP2-clockdomain-Add-an-api-to-read-idle-mode.patch
@@ -0,0 +1,77 @@
+From 988f50cb51d18e81ed2f7673a09694d28c9d086a Mon Sep 17 00:00:00 2001
+From: Rajendra Nayak <rnayak@ti.com>
+Date: Tue, 5 Apr 2011 15:22:31 +0530
+Subject: [PATCH 1/6] OMAP2+: clockdomain: Add an api to read idle mode
+
+Add a clockdomain api to check if hardware supervised
+idle transitions are enabled on a clockdomain.
+
+Signed-off-by: Rajendra Nayak <rnayak@ti.com>
+---
+ arch/arm/mach-omap2/clockdomain.c |   21 +++++++++++++++++++++
+ arch/arm/mach-omap2/clockdomain.h |    3 +++
+ 2 files changed, 24 insertions(+), 0 deletions(-)
+
+diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
+index 6cb6c03..2ab3686 100644
+--- a/arch/arm/mach-omap2/clockdomain.c
++++ b/arch/arm/mach-omap2/clockdomain.c
+@@ -795,6 +795,27 @@ void clkdm_deny_idle(struct clockdomain *clkdm)
+        arch_clkdm->clkdm_deny_idle(clkdm);
+ }
+ 
++/**
++ * clkdm_is_idle - Check if the clkdm hwsup/autoidle is enabled
++ * @clkdm: struct clockdomain *
++ *
++ * Returns true if the clockdomain is in hardware-supervised
++ * idle mode, or 0 otherwise.
++ *
++ */
++int clkdm_is_idle(struct clockdomain *clkdm)
++{
++       if (!clkdm)
++               return -EINVAL;
++
++       if (!arch_clkdm || !arch_clkdm->clkdm_is_idle)
++               return -EINVAL;
++
++       pr_debug("clockdomain: reading idle state for %s\n", clkdm->name);
++
++       return arch_clkdm->clkdm_is_idle(clkdm);
++}
++
+ 
+ /* Clockdomain-to-clock framework interface code */
+ 
+diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
+index 5823584..085ed82 100644
+--- a/arch/arm/mach-omap2/clockdomain.h
++++ b/arch/arm/mach-omap2/clockdomain.h
+@@ -138,6 +138,7 @@ struct clockdomain {
+  * @clkdm_wakeup: Force a clockdomain to wakeup
+  * @clkdm_allow_idle: Enable hw supervised idle transitions for clock domain
+  * @clkdm_deny_idle: Disable hw supervised idle transitions for clock domain
++ * @clkdm_is_idle: Check if hw supervised idle transitions are enabled
+  * @clkdm_clk_enable: Put the clkdm in right state for a clock enable
+  * @clkdm_clk_disable: Put the clkdm in right state for a clock disable
+  */
+@@ -154,6 +155,7 @@ struct clkdm_ops {
+        int     (*clkdm_wakeup)(struct clockdomain *clkdm);
+        void    (*clkdm_allow_idle)(struct clockdomain *clkdm);
+        void    (*clkdm_deny_idle)(struct clockdomain *clkdm);
++       int     (*clkdm_is_idle)(struct clockdomain *clkdm);
+        int     (*clkdm_clk_enable)(struct clockdomain *clkdm);
+        int     (*clkdm_clk_disable)(struct clockdomain *clkdm);
+ };
+@@ -177,6 +179,7 @@ int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm);
+ 
+ void clkdm_allow_idle(struct clockdomain *clkdm);
+ void clkdm_deny_idle(struct clockdomain *clkdm);
++int clkdm_is_idle(struct clockdomain *clkdm);
+ 
+ int clkdm_wakeup(struct clockdomain *clkdm);
+ int clkdm_sleep(struct clockdomain *clkdm);
+-- 
+1.6.6.1
+