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[07/16] OMAP3: PM: Adding smartreflex class 3 driver.

Message ID 1267003757-22456-8-git-send-email-thara@ti.com (mailing list archive)
State Superseded
Delegated to: Kevin Hilman
Headers show

Commit Message

Thara Gopinath Feb. 24, 2010, 9:29 a.m. UTC 
None
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Patch

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index f6f901f..cd8ab86 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -52,6 +52,7 @@  obj-$(CONFIG_ARCH_OMAP2)		+= sleep24xx.o
 obj-$(CONFIG_ARCH_OMAP3)		+= pm34xx.o sleep34xx.o cpuidle34xx.o
 obj-$(CONFIG_PM_DEBUG)			+= pm-debug.o
 obj-$(CONFIG_OMAP_SMARTREFLEX)	+= smartreflex.o
+obj-$(CONFIG_OMAP_SMARTREFLEX_CLASS3)	+= smartreflex-class3.o
 
 AFLAGS_sleep24xx.o			:=-Wa,-march=armv6
 AFLAGS_sleep34xx.o			:=-Wa,-march=armv7-a
diff --git a/arch/arm/mach-omap2/smartreflex-class3.c b/arch/arm/mach-omap2/smartreflex-class3.c
new file mode 100644
index 0000000..d2e98a5
--- /dev/null
+++ b/arch/arm/mach-omap2/smartreflex-class3.c
@@ -0,0 +1,49 @@ 
+/*
+ * Smart reflex Class 3 specific implementations
+ *
+ * Copyright (C) 2009 Texas Instruments, Inc.
+ * Thara Gopinath <thara@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "smartreflex.h"
+
+static int sr_class3_enable(int id)
+{
+	int target_opp_no = 0;
+	if (id == SR1)
+		target_opp_no = get_vdd1_opp();
+	else if (id == SR2)
+		target_opp_no = get_vdd2_opp();
+	if (!target_opp_no) {
+		pr_warning("Targetopp not known.Cannot enable SR%d\n", id);
+		return false;
+	}
+	return sr_enable(id, target_opp_no);
+}
+
+static int sr_class3_disable(int id)
+{
+	int target_opp_no = 0;
+	if (id == SR1)
+		target_opp_no = get_vdd1_opp();
+	else if (id == SR2)
+		target_opp_no = get_vdd2_opp();
+	sr_disable(id);
+	return true;
+}
+/* SR class3 structure */
+struct omap_smartreflex_class_data class3_data = {
+	.enable = sr_class3_enable,
+	.disable = sr_class3_disable,
+};
+
+static int __init sr_class3_init(void)
+{
+	omap_sr_register_class(&class3_data);
+	return 0;
+}
+late_initcall(sr_class3_init);
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index cef67f3..9d286e6 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -54,7 +54,7 @@  config OMAP_DEBUG_LEDS
 
 config OMAP_SMARTREFLEX
 	bool "SmartReflex support"
-	depends on ARCH_OMAP3 && TWL4030_CORE && PM
+	depends on ARCH_OMAP3 && PM
 	help
 	  Say Y if you want to enable SmartReflex.
 
@@ -69,6 +69,15 @@  config OMAP_SMARTREFLEX
 	  compensation for VDD1 and VDD2, user must write 1 to
 	  /sys/power/sr_vddX_autocomp, where X is 1 or 2.
 
+config OMAP_SMARTREFLEX_CLASS3
+	bool "Class 3 mode of Smartreflex Implementation"
+	depends on OMAP_SMARTREFLEX && TWL4030_CORE
+	help
+	  Say Y to enable Class 3 implementation of Smartreflex
+
+	  Class 3 implementation of Smartreflex employs continuous hardware
+	  voltage caliberation.
+
 config OMAP_SMARTREFLEX_TESTING
 	bool "Smartreflex testing support"
 	depends on OMAP_SMARTREFLEX