Signed-off-by: Peter 'p2' De Schrijver <[email protected]>
---
drivers/mfd/twl4030-power.c | 96 ++++++++++++++++++++++++++++++++++++++++++-
include/linux/i2c/twl4030.h | 41 ++++++++++++++++++-
2 files changed, 135 insertions(+), 2 deletions(-)
diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index d9d1655..f1d416c 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -38,6 +38,8 @@ static u8 triton_next_free_address = 0x2b;
#define PHY_TO_OFF_PM_MASTER(p) (p - 0x36)
#define PHY_TO_OFF_PM_RECEIVER(p) (p - 0x5b)
+#define NUM_OF_RESOURCES 28
+
/* resource - hfclk */
#define R_HFCLKOUT_DEV_GRP PHY_TO_OFF_PM_RECEIVER(0xe6)
@@ -66,6 +68,42 @@ static u8 triton_next_free_address = 0x2b;
#define KEY_1 0xC0
#define KEY_2 0x0C
+/* resource configuration registers */
+
+#define DEVGROUP_OFFSET 0
+#define TYPE_OFFSET 1
+
+static int res_config_addrs[] = {
+ [RES_VAUX1] = 0x17,
+ [RES_VAUX2] = 0x1b,
+ [RES_VAUX3] = 0x1f,
+ [RES_VAUX4] = 0x23,
+ [RES_VMMC1] = 0x27,
+ [RES_VMMC2] = 0x2b,
+ [RES_VPLL1] = 0x2f,
+ [RES_VPLL2] = 0x33,
+ [RES_VSIM] = 0x37,
+ [RES_VDAC] = 0x3b,
+ [RES_VINTANA1] = 0x3f,
+ [RES_VINTANA2] = 0x43,
+ [RES_VINTDIG] = 0x47,
+ [RES_VIO] = 0x4b,
+ [RES_VDD1] = 0x55,
+ [RES_VDD2] = 0x63,
+ [RES_VUSB_1v5] = 0x71,
+ [RES_VUSB_1v8] = 0x74,
+ [RES_VUSB_3v1] = 0x77,
+ [RES_VUSBCP] = 0x7a,
+ [RES_REGEN] = 0x7f,
+ [RES_NRES_PWRON] = 0x82,
+ [RES_CLKEN] = 0x85,
+ [RES_SYSEN] = 0x88,
+ [RES_HFCLKOUT] = 0x8b,
+ [RES_32KCLKOUT] = 0x8e,
+ [RES_RESET] = 0x91,
+ [RES_Main_Ref] = 0x94,
+};
+
static int __init twl4030_write_script_byte(u8 address, u8 byte)
{
int err;
@@ -219,6 +257,53 @@ static int __init config_warmreset_sequence(u8 address)
return err;
}
+void twl4030_configure_resource(struct twl4030_resconfig *rconfig)
+{
+ int rconfig_addr;
+ u8 type;
+
+ if (rconfig->resource > NUM_OF_RESOURCES) {
+ printk(KERN_ERR
+ "TWL4030 Resource %d does not exist\n",
+ rconfig->resource);
+ return;
+ }
+
+ rconfig_addr = res_config_addrs[rconfig->resource];
+
+ /* Set resource group */
+
+ if (rconfig->devgroup >= 0)
+ twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+ rconfig->devgroup << 5,
+ rconfig_addr + DEVGROUP_OFFSET);
+
+ /* Set resource types */
+
+ if (twl4030_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER,
+ &type,
+ rconfig_addr + TYPE_OFFSET) < 0) {
+ printk(KERN_ERR
+ "TWL4030 Resource %d type could not read\n",
+ rconfig->resource);
+ return;
+ }
+
+ if (rconfig->type >= 0) {
+ type &= ~7;
+ type |= rconfig->type;
+ }
+
+ if (rconfig->type2 >= 0) {
+ type &= ~(3 << 3);
+ type |= rconfig->type2 << 3;
+ }
+
+ twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+ type, rconfig_addr + TYPE_OFFSET);
+
+}
+
static int __init load_triton_script(struct twl4030_script *tscript)
{
u8 address = triton_next_free_address;
@@ -249,6 +334,7 @@ void __init twl4030_power_init(struct twl4030_power_data
*triton2_scripts)
{
int err = 0;
int i;
+ struct twl4030_resconfig *resconfig;
err = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_1,
R_PROTECT_KEY);
@@ -258,12 +344,20 @@ void __init twl4030_power_init(struct twl4030_power_data
*triton2_scripts)
printk(KERN_ERR
"TWL4030 Unable to unlock registers\n");
- for (i = 0; i < triton2_scripts->size; i++) {
+ for (i = 0; i < triton2_scripts->scripts_size; i++) {
err = load_triton_script(triton2_scripts->scripts[i]);
if (err)
break;
}
+ resconfig = triton2_scripts->resource_config;
+ if (resconfig) {
+ while (resconfig->resource) {
+ twl4030_configure_resource(resconfig);
+ resconfig++;
+ }
+ }
+
if (twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, R_PROTECT_KEY))
printk(KERN_ERR
"TWL4030 Unable to relock registers\n");
diff --git a/include/linux/i2c/twl4030.h b/include/linux/i2c/twl4030.h
index 17bd400..efa7af1 100644
--- a/include/linux/i2c/twl4030.h
+++ b/include/linux/i2c/twl4030.h
@@ -243,6 +243,37 @@ int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg,
unsigned num_bytes);
#define RES_STATE_SLEEP 0x8
#define RES_STATE_OFF 0x0
+/* Power resources */
+
+#define RES_VAUX1 1
+#define RES_VAUX2 2
+#define RES_VAUX3 3
+#define RES_VAUX4 4
+#define RES_VMMC1 5
+#define RES_VMMC2 6
+#define RES_VPLL1 7
+#define RES_VPLL2 8
+#define RES_VSIM 9
+#define RES_VDAC 10
+#define RES_VINTANA1 11
+#define RES_VINTANA2 12
+#define RES_VINTDIG 13
+#define RES_VIO 14
+#define RES_VDD1 15
+#define RES_VDD2 16
+#define RES_VUSB_1v5 17
+#define RES_VUSB_1v8 18
+#define RES_VUSB_3v1 19
+#define RES_VUSBCP 20
+#define RES_REGEN 21
+#define RES_NRES_PWRON 22
+#define RES_CLKEN 23
+#define RES_SYSEN 24
+#define RES_HFCLKOUT 25
+#define RES_32KCLKOUT 26
+#define RES_RESET 27
+#define RES_Main_Ref 28
+
/*
* Power Bus Message Format ... these can be sent individually by Linux,
* but are usually part of downloaded scripts that are run when various
@@ -334,9 +365,17 @@ struct twl4030_script {
#define TRITON_SLEEP_SCRIPT (1<<3)
};
+struct twl4030_resconfig {
+ u8 resource;
+ u8 devgroup;
+ u8 type;
+ u8 type2;
+};
+
struct twl4030_power_data {
struct twl4030_script **scripts;
- unsigned size;
+ unsigned scripts_size;
+ struct twl4030_resconfig *resource_config;
};
struct twl4030_platform_data {
--
1.5.6.3
--
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