[PATCHv6 6/6] omap3: voltage: add external controller for VDD1 and VDD2

[Tero Kristo]

VDD1 and VDD2 will now use voltage controller when regulator voltage
is changed.

Signed-off-by: Tero Kristo <t-kri...@ti.com>
---
 arch/arm/mach-omap2/omap_twl.c |   21 +++++++++++++++++++++
 1 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c
index f515a1a..4f69d8d 100644
--- a/arch/arm/mach-omap2/omap_twl.c
+++ b/arch/arm/mach-omap2/omap_twl.c
@@ -17,6 +17,7 @@
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/i2c/twl.h>
+#include <linux/regulator/consumer.h>
 
 #include "voltage.h"
 
@@ -72,6 +73,23 @@ static bool __initdata twl_sr_enable_autoinit;
 #define REG_SMPS_OFFSET         0xE0
 #define SMARTREFLEX_ENABLE     BIT(3)
 
+static int twl_set_voltage(void *data, int min_uV, int max_uV)
+{
+       struct voltagedomain *voltdm = (struct voltagedomain *)data;
+       return voltdm_scale(voltdm, min_uV);
+}
+
+static int twl_get_voltage(void *data)
+{
+       struct voltagedomain *voltdm = (struct voltagedomain *)data;
+       return voltdm_get_voltage(voltdm);
+}
+
+struct regulator_ext_ops twl_ext_ops = {
+       .get_voltage = twl_get_voltage,
+       .set_voltage = twl_set_voltage,
+};
+
 static unsigned long twl4030_vsel_to_uv(const u8 vsel)
 {
        return (((vsel * 125) + 6000)) * 100;
@@ -284,6 +302,7 @@ int __init omap4_twl_init(void)
 int __init omap3_twl_init(void)
 {
        struct voltagedomain *voltdm;
+       struct regulator *reg;
 
        if (!cpu_is_omap34xx())
                return -ENODEV;
@@ -309,9 +328,11 @@ int __init omap3_twl_init(void)
 
        voltdm = voltdm_lookup("mpu_iva");
        omap_voltage_register_pmic(voltdm, &omap3_mpu_pmic);
+       regulator_set_external_ctrl("mpu.0", "vcc", &twl_ext_ops, voltdm);
 
        voltdm = voltdm_lookup("core");
        omap_voltage_register_pmic(voltdm, &omap3_core_pmic);
+       regulator_set_external_ctrl("l3_main.0", "vcc", &twl_ext_ops, voltdm);
 
        return 0;
 }
-- 
1.7.4.1

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