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From: Rajendra Nayak <rnayak@ti.com>
To: linux-omap@vger.kernel.org
Cc: paul@pwsan.com, khilman@ti.com, b-cousson@ti.com,
	santosh.shilimkar@ti.com, linux-arm-kernel@lists.infradead.org,
	Rajendra Nayak <rnayak@ti.com>
Subject: [PATCH 1/8] OMAP2+: clockdomain: Add an api to read idle mode
Date: Thu, 9 Jun 2011 16:24:06 +0530	[thread overview]
Message-ID: <1307616853-28395-2-git-send-email-rnayak@ti.com> (raw)
In-Reply-To: <1307616853-28395-1-git-send-email-rnayak@ti.com>

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);
-- 
1.7.0.4


WARNING: multiple messages have this Message-ID (diff)
From: rnayak@ti.com (Rajendra Nayak)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/8] OMAP2+: clockdomain: Add an api to read idle mode
Date: Thu, 9 Jun 2011 16:24:06 +0530	[thread overview]
Message-ID: <1307616853-28395-2-git-send-email-rnayak@ti.com> (raw)
In-Reply-To: <1307616853-28395-1-git-send-email-rnayak@ti.com>

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);
-- 
1.7.0.4

  reply	other threads:[~2011-06-09 10:54 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-09 10:54 [PATCH 0/8] Fix module-mode enable sequence on OMAP4 Rajendra Nayak
2011-06-09 10:54 ` Rajendra Nayak
2011-06-09 10:54 ` Rajendra Nayak [this message]
2011-06-09 10:54   ` [PATCH 1/8] OMAP2+: clockdomain: Add an api to read idle mode Rajendra Nayak
2011-06-09 10:54   ` [PATCH 2/8] OMAP2+: clockdomain: Add SoC support for clkdm_is_idle Rajendra Nayak
2011-06-09 10:54     ` Rajendra Nayak
2011-06-09 10:54     ` [PATCH 3/8] OMAP2+: PM: Initialise sleep_switch to a non-valid value Rajendra Nayak
2011-06-09 10:54       ` Rajendra Nayak
2011-06-09 10:54       ` [PATCH 4/8] OMAP2+: PM: idle clkdms only if already in idle Rajendra Nayak
2011-06-09 10:54         ` Rajendra Nayak
2011-06-09 10:54         ` [PATCH 5/8] OMAP4: PM: TEMP: Prevent l3init from idling/force sleep Rajendra Nayak
2011-06-09 10:54           ` Rajendra Nayak
2011-06-09 10:54           ` [PATCH 6/8] OMAP2+: hwmod: Follow the recomended PRCM clock enable sequence Rajendra Nayak
2011-06-09 10:54             ` Rajendra Nayak
2011-06-09 10:54             ` [PATCH 7/8] OMAP: clock: Add flags to identify optional clock nodes Rajendra Nayak
2011-06-09 10:54               ` Rajendra Nayak
2011-06-09 10:54               ` [PATCH 8/8] OMAP: clock: Enable clockdomain only for optional clocks Rajendra Nayak
2011-06-09 10:54                 ` Rajendra Nayak
2011-06-23 15:04           ` [PATCH 5/8] OMAP4: PM: TEMP: Prevent l3init from idling/force sleep Paul Walmsley
2011-06-23 15:04             ` Paul Walmsley
2011-06-23 15:22             ` Russell King - ARM Linux
2011-06-23 15:22               ` Russell King - ARM Linux
2011-07-06  5:30               ` Paul Walmsley
2011-07-06  5:30                 ` Paul Walmsley
2011-06-10  0:15         ` [PATCH 4/8] OMAP2+: PM: idle clkdms only if already in idle Todd Poynor
2011-06-10  0:15           ` Todd Poynor
2011-06-10 11:22           ` Rajendra Nayak
2011-06-10 11:22             ` Rajendra Nayak
2011-06-27  6:34             ` Paul Walmsley
2011-06-27  6:34               ` Paul Walmsley
2011-06-27 23:36               ` Rajendra Nayak
2011-06-27 23:36                 ` Rajendra Nayak
2011-06-10  0:07   ` [PATCH 1/8] OMAP2+: clockdomain: Add an api to read idle mode Todd Poynor
2011-06-10  0:07     ` Todd Poynor
2011-06-10 11:08     ` Rajendra Nayak
2011-06-10 11:08       ` Rajendra Nayak

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