linux-kernel - [RFC PATCH 16/34] msm: clock-pcom: Expose pc_clk

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Date:	Wed,  2 Nov 2011 11:36:13 -0700
From:	David Brown <davidb@...eaurora.org>
To:	David Brown <davidb@...eaurora.org>,
	Daniel Walker <dwalker@...o99.com>,
	Bryan Huntsman <bryanh@...eaurora.org>,
	Russell King <linux@....linux.org.uk>
Cc:	Stephen Boyd <sboyd@...eaurora.org>, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [RFC PATCH 16/34] msm: clock-pcom: Expose pc_clk_reset

From: Stephen Boyd <sboyd@...eaurora.org>

The 7x30 clock driver needs to perform clock resets and the only
way that is possible is through proc_comm. Expose the reset
functionality as a new function callable from the 7x30 clock
driver.

Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
Signed-off-by: David Brown <davidb@...eaurora.org>
---
 arch/arm/mach-msm/clock-pcom.c |   13 +++++++++----
 arch/arm/mach-msm/clock-pcom.h |    2 ++
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-msm/clock-pcom.c b/arch/arm/mach-msm/clock-pcom.c
index e11ef57..f441247 100644
--- a/arch/arm/mach-msm/clock-pcom.c
+++ b/arch/arm/mach-msm/clock-pcom.c
@@ -41,10 +41,9 @@ static void pc_clk_disable(struct clk *clk)
 	msm_proc_comm(PCOM_CLKCTL_RPC_DISABLE, &id, NULL);
 }
 
-int pc_clk_reset(struct clk *clk, enum clk_reset_action action)
+int pc_clk_reset(unsigned id, enum clk_reset_action action)
 {
 	int rc;
-	unsigned id = to_pcom_clk(clk)->id;
 
 	if (action == CLK_RESET_ASSERT)
 		rc = msm_proc_comm(PCOM_CLKCTL_RPC_RESET_ASSERT, &id, NULL);
@@ -57,6 +56,12 @@ int pc_clk_reset(struct clk *clk, enum clk_reset_action action)
 		return (int)id < 0 ? -EINVAL : 0;
 }
 
+static int pc_reset(struct clk *clk, enum clk_reset_action action)
+{
+	unsigned id = to_pcom_clk(clk)->id;
+	return pc_clk_reset(id, action);
+}
+
 static int pc_clk_set_rate(struct clk *clk, unsigned rate)
 {
 	/* The rate _might_ be rounded off to the nearest KHz value by the
@@ -135,7 +140,7 @@ struct clk_ops clk_ops_pcom = {
 	.enable = pc_clk_enable,
 	.disable = pc_clk_disable,
 	.auto_off = pc_clk_disable,
-	.reset = pc_clk_reset,
+	.reset = pc_reset,
 	.set_rate = pc_clk_set_rate,
 	.set_min_rate = pc_clk_set_min_rate,
 	.set_max_rate = pc_clk_set_max_rate,
@@ -165,7 +170,7 @@ struct clk_ops clk_ops_pcom_div2 = {
 	.enable = pc_clk_enable,
 	.disable = pc_clk_disable,
 	.auto_off = pc_clk_disable,
-	.reset = pc_clk_reset,
+	.reset = pc_reset,
 	.set_rate = pc_clk_set_rate2,
 	.set_min_rate = pc_clk_set_min_rate2,
 	.set_flags = pc_clk_set_flags,
diff --git a/arch/arm/mach-msm/clock-pcom.h b/arch/arm/mach-msm/clock-pcom.h
index 23807ff..c3beb47 100644
--- a/arch/arm/mach-msm/clock-pcom.h
+++ b/arch/arm/mach-msm/clock-pcom.h
@@ -120,6 +120,8 @@
 
 #define P_NR_CLKS		102
 
+extern int pc_clk_reset(unsigned id, enum clk_reset_action action);
+
 struct clk_ops;
 extern struct clk_ops clk_ops_pcom;
 extern struct clk_ops clk_ops_pcom_div2;
-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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