[v4,6/9] OMAP3: PM: Adding T2 enabling of smartreflex support

Commit Message

Thara Gopinath Oct. 27, 2010, 4:10 p.m. UTC

None

Patch

diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 720e099..677b903 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -1009,8 +1009,11 @@  twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	clocks_init(&client->dev, pdata->clock);
 
 	/* load power event scripts */
-	if (twl_has_power() && pdata->power)
-		twl4030_power_init(pdata->power);
+	if (twl_has_power()) {
+		twl4030_power_sr_init();
+		 if (pdata->power)
+			twl4030_power_init(pdata->power);
+	}
 
 	/* Maybe init the T2 Interrupt subsystem */
 	if (client->irq
diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index 7efa878..0e897a7 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -31,6 +31,8 @@ 
 
 #include <asm/mach-types.h>
 
+#include <plat/smartreflex.h>
+
 static u8 twl4030_start_script_address = 0x2b;
 
 #define PWR_P1_SW_EVENTS	0x10
@@ -63,6 +65,10 @@  static u8 twl4030_start_script_address = 0x2b;
 #define R_MEMORY_ADDRESS	PHY_TO_OFF_PM_MASTER(0x59)
 #define R_MEMORY_DATA		PHY_TO_OFF_PM_MASTER(0x5a)
 
+/* Smartreflex Control */
+#define R_DCDC_GLOBAL_CFG	PHY_TO_OFF_PM_RECEIVER(0x61)
+#define CFG_ENABLE_SRFLX	0x08
+
 #define R_PROTECT_KEY		0x0E
 #define R_KEY_1			0xC0
 #define R_KEY_2			0x0C
@@ -511,6 +517,29 @@  int twl4030_remove_script(u8 flags)
 	return err;
 }
 
+/* API to enable smrtreflex on Triton side */
+static void twl4030_smartreflex_init(void)
+{
+	int ret = 0;
+	u8 read_val;
+
+	ret = twl_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &read_val,
+			R_DCDC_GLOBAL_CFG);
+	read_val |= CFG_ENABLE_SRFLX;
+	ret |= twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, read_val,
+			R_DCDC_GLOBAL_CFG);
+}
+
+struct omap_sr_pmic_data twl4030_sr_data = {
+	.sr_pmic_init   = twl4030_smartreflex_init,
+};
+
+void __init twl4030_power_sr_init()
+{
+	/* Register the SR init API with the Smartreflex driver */
+	omap_sr_register_pmic(&twl4030_sr_data);
+}
+
 void __init twl4030_power_init(struct twl4030_power_data *twl4030_scripts)
 {
 	int err = 0;
diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
index 6de90bf..b02011e 100644
--- a/include/linux/i2c/twl.h
+++ b/include/linux/i2c/twl.h
@@ -550,6 +550,7 @@  struct twl4030_power_data {
 };
 
 extern void twl4030_power_init(struct twl4030_power_data *triton2_scripts);
+extern void twl4030_power_sr_init(void);
 extern int twl4030_remove_script(u8 flags);
 
 struct twl4030_codec_audio_data {