From 83928f2ae1e461c48d4dc471a3dcab778b212467 Mon Sep 17 00:00:00 2001

From: Syed Mohammed Khasim khasim@ti.com Date: Tue, 12 Jan 2010 16:19:23 +0530 Subject: [PATCH] API to set twl4030 voltage and dev group

V3: Incorporated review comments to set voltage first and then dev group

V2: Incorporated review comments to split the patch and add generic API to set the voltage and device group. http://www.mail-archive.com/u-boot@lists.denx.de/msg27136.html

V1: Added support for 720 Mhz http://www.mail-archive.com/u-boot@lists.denx.de/msg27035.html

Signed-off-by: Syed Mohammed Khasim khasim@ti.com --- drivers/power/twl4030.c | 24 +++++++++++++++--------- include/twl4030.h | 16 ++++++++++++++++ 2 files changed, 31 insertions(+), 9 deletions(-)

diff --git a/drivers/power/twl4030.c b/drivers/power/twl4030.c index eb066cb..f25b58f 100644 --- a/drivers/power/twl4030.c +++ b/drivers/power/twl4030.c @@ -59,16 +59,9 @@ void twl4030_power_reset_init(void) } }

- /* * Power Init */ -#define DEV_GRP_P1 0x20 -#define VAUX3_VSEL_28 0x03 -#define DEV_GRP_ALL 0xE0 -#define VPLL2_VSEL_18 0x05 -#define VDAC_VSEL_18 0x03 - void twl4030_power_init(void) { unsigned char byte; @@ -98,8 +91,6 @@ void twl4030_power_init(void) TWL4030_PM_RECEIVER_VDAC_DEDICATED); }

-#define VMMC1_VSEL_30 0x02 - void twl4030_power_mmc_init(void) { unsigned char byte; @@ -113,3 +104,18 @@ void twl4030_power_mmc_init(void) twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, TWL4030_PM_RECEIVER_VMMC1_DEDICATED); } + +/* + * Generic function to select Device Group and Voltage + */ +void twl4030_pmrecv_vsel_cfg(u8 vsel_reg, u8 vsel_val, + u8 dev_grp, u8 dev_grp_sel) +{ + /* Select the Voltage */ + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, vsel_val, + vsel_reg); + + /* Select the Device Group */ + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, dev_grp_sel, + dev_grp); +} diff --git a/include/twl4030.h b/include/twl4030.h index f260ecb..b96c96c 100644 --- a/include/twl4030.h +++ b/include/twl4030.h @@ -359,6 +359,22 @@ #define TWL4030_USB_PHY_DPLL_CLK (1 << 0)

/* + * Voltage Selection in PM Receiver Module + */ +#define VAUX2_VSEL_18 0x05 +#define VDD1_VSEL_14 0x40 +#define VAUX3_VSEL_28 0x03 +#define VPLL2_VSEL_18 0x05 +#define VDAC_VSEL_18 0x03 +#define VMMC1_VSEL_30 0x02 + +/* + * Device Selection + */ +#define DEV_GRP_P1 0x20 +#define DEV_GRP_ALL 0xE0 + +/* * Convience functions to read and write from TWL4030 * * chip_no is the i2c address, it must be one of the chip addresses