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Commit e4e021c5 authored by Kevin Hilman's avatar Kevin Hilman
Browse files

OMAP3+: VC: cleanup PMIC register address configuration 



- support both voltage register address and command register address
  for each VC channel
- add fields for voltage register address (volra) and command register
  address (cmdra) to struct omap_vc_channel
- use VC/VP register access read/modify/write helper
- remove volra_shift field (use __ffs(mask) for shift value)
- I2C addresses 10-bit, change size to u16

Signed-off-by: default avatarKevin Hilman <khilman@ti.com>
parent ba112a4e

arch/arm/mach-omap2/vc.c

+12 −5
Original line number Diff line number Diff line
@@ -243,17 +243,24 @@ void __init omap_vc_init_channel(struct voltagedomain *voltdm) 


	/* get PMIC/board specific settings */

	vc->i2c_slave_addr = vdd->pmic_info->i2c_slave_addr;

	vc->volt_reg_addr = vdd->pmic_info->volt_reg_addr;

	vc->cmd_reg_addr = vdd->pmic_info->cmd_reg_addr;



	/* Configure the i2c slave address for this VC */

	voltdm->rmw(vc->smps_sa_mask,

		    vc->i2c_slave_addr << __ffs(vc->smps_sa_mask),

		    vc->common->smps_sa_reg);



	/* Setup the VOLRA(pmic reg addr) in VC */

	vc_val = voltdm->read(vc->common->smps_volra_reg);

	vc_val &= ~vc->smps_volra_mask;

	vc_val |= vdd->pmic_info->volt_reg_addr << vc->smps_volra_shift;

	voltdm->write(vc_val, vc->common->smps_volra_reg);

	/*

	 * Configure the PMIC register addresses.

	 */

	voltdm->rmw(vc->smps_volra_mask,

		    vc->volt_reg_addr << __ffs(vc->smps_volra_mask),

		    vc->common->smps_volra_reg);

	if (vc->cmd_reg_addr)

		voltdm->rmw(vc->smps_cmdra_mask,

			    vc->cmd_reg_addr << __ffs(vc->smps_cmdra_mask),

			    vc->common->smps_cmdra_reg);



	/* Configure the setup times */

	vc_val = voltdm->read(vdd->vfsm->voltsetup_reg);

arch/arm/mach-omap2/vc.h

+9 −5
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ struct voltagedomain; 
 * @valid: VALID bitmask in PRM_VC_BYPASS_VAL register

 * @smps_sa_reg: Offset of PRM_VC_SMPS_SA reg from PRM start

 * @smps_volra_reg: Offset of PRM_VC_SMPS_VOL_RA reg from PRM start

 * @smps_cmdra_reg: Offset of PRM_VC_SMPS_CMD_RA reg from PRM start

 * @bypass_val_reg: Offset of PRM_VC_BYPASS_VAL reg from PRM start

 * @data_shift: DATA field shift in PRM_VC_BYPASS_VAL register

 * @slaveaddr_shift: SLAVEADDR field shift in PRM_VC_BYPASS_VAL register
@@ -44,6 +45,7 @@ struct omap_vc_common { 
	u32 valid;

	u8 smps_sa_reg;

	u8 smps_volra_reg;

	u8 smps_cmdra_reg;

	u8 bypass_val_reg;

	u8 data_shift;

	u8 slaveaddr_shift;
@@ -57,24 +59,26 @@ struct omap_vc_common { 
/**

 * struct omap_vc_channel - VC per-instance data

 * @i2c_slave_addr: I2C slave address of PMIC for this VC channel

 * @volt_reg_addr: voltage configuration register address

 * @cmd_reg_addr: command configuration register address

 * @common: pointer to VC common data for this platform

 * @smps_sa_mask: i2c slave address bitmask in the PRM_VC_SMPS_SA register

 * @smps_volra_mask: VOLRA* bitmask in the PRM_VC_VOL_RA register

 * @smps_volra_shift: VOLRA* field shift in the PRM_VC_VOL_RA register

 *

 * XXX It is not necessary to have both a *_mask and a *_shift -

 *     remove one

 * @smps_cmdra_mask: CMDRA* bitmask in the PRM_VC_CMD_RA register

 * @cmdval_reg: register for on/ret/off voltage level values for this channel

 */

struct omap_vc_channel {

	/* channel state */

	u16 i2c_slave_addr;

	u16 volt_reg_addr;

	u16 cmd_reg_addr;



	/* register access data */

	const struct omap_vc_common *common;

	u32 smps_sa_mask;

	u32 smps_volra_mask;

	u32 smps_cmdra_mask;

	u8 cmdval_reg;

	u8 smps_volra_shift;

};



extern struct omap_vc_channel omap3_vc_mpu;

arch/arm/mach-omap2/vc3xxx_data.c

+3 −2
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ 
static struct omap_vc_common omap3_vc_common = {

	.smps_sa_reg	 = OMAP3_PRM_VC_SMPS_SA_OFFSET,

	.smps_volra_reg	 = OMAP3_PRM_VC_SMPS_VOL_RA_OFFSET,

	.smps_cmdra_reg	 = OMAP3_PRM_VC_SMPS_CMD_RA_OFFSET,

	.bypass_val_reg	 = OMAP3_PRM_VC_BYPASS_VAL_OFFSET,

	.data_shift	 = OMAP3430_DATA_SHIFT,

	.slaveaddr_shift = OMAP3430_SLAVEADDR_SHIFT,
@@ -48,14 +49,14 @@ struct omap_vc_channel omap3_vc_mpu = { 
	.common = &omap3_vc_common,

	.cmdval_reg = OMAP3_PRM_VC_CMD_VAL_0_OFFSET,

	.smps_sa_mask = OMAP3430_PRM_VC_SMPS_SA_SA0_MASK,

	.smps_volra_shift = OMAP3430_VOLRA0_SHIFT,

	.smps_volra_mask = OMAP3430_VOLRA0_MASK,

	.smps_cmdra_mask = OMAP3430_CMDRA0_MASK,

};



struct omap_vc_channel omap3_vc_core = {

	.common = &omap3_vc_common,

	.cmdval_reg = OMAP3_PRM_VC_CMD_VAL_1_OFFSET,

	.smps_sa_mask = OMAP3430_PRM_VC_SMPS_SA_SA1_MASK,

	.smps_volra_shift = OMAP3430_VOLRA1_SHIFT,

	.smps_volra_mask = OMAP3430_VOLRA1_MASK,

	.smps_cmdra_mask = OMAP3430_CMDRA1_MASK,

};

arch/arm/mach-omap2/vc44xx_data.c

+4 −3
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ 
static const struct omap_vc_common omap4_vc_common = {

	.smps_sa_reg = OMAP4_PRM_VC_SMPS_SA_OFFSET,

	.smps_volra_reg = OMAP4_PRM_VC_VAL_SMPS_RA_VOL_OFFSET,

	.smps_cmdra_reg = OMAP4_PRM_VC_VAL_SMPS_RA_CMD_OFFSET,

	.bypass_val_reg = OMAP4_PRM_VC_VAL_BYPASS_OFFSET,

	.data_shift = OMAP4430_DATA_SHIFT,

	.slaveaddr_shift = OMAP4430_SLAVEADDR_SHIFT,
@@ -50,23 +51,23 @@ struct omap_vc_channel omap4_vc_mpu = { 
	.common = &omap4_vc_common,

	.cmdval_reg = OMAP4_PRM_VC_VAL_CMD_VDD_MPU_L_OFFSET,

	.smps_sa_mask = OMAP4430_SA_VDD_MPU_L_PRM_VC_SMPS_SA_MASK,

	.smps_volra_shift = OMAP4430_VOLRA_VDD_MPU_L_SHIFT,

	.smps_volra_mask = OMAP4430_VOLRA_VDD_MPU_L_MASK,

	.smps_cmdra_mask = OMAP4430_CMDRA_VDD_MPU_L_MASK,

};



struct omap_vc_channel omap4_vc_iva = {

	.common = &omap4_vc_common,

	.cmdval_reg = OMAP4_PRM_VC_VAL_CMD_VDD_IVA_L_OFFSET,

	.smps_sa_mask = OMAP4430_SA_VDD_IVA_L_PRM_VC_SMPS_SA_MASK,

	.smps_volra_shift = OMAP4430_VOLRA_VDD_IVA_L_SHIFT,

	.smps_volra_mask = OMAP4430_VOLRA_VDD_IVA_L_MASK,

	.smps_cmdra_mask = OMAP4430_CMDRA_VDD_IVA_L_MASK,

};



struct omap_vc_channel omap4_vc_core = {

	.common = &omap4_vc_common,

	.cmdval_reg = OMAP4_PRM_VC_VAL_CMD_VDD_CORE_L_OFFSET,

	.smps_sa_mask = OMAP4430_SA_VDD_CORE_L_0_6_MASK,

	.smps_volra_shift = OMAP4430_VOLRA_VDD_CORE_L_SHIFT,

	.smps_volra_mask = OMAP4430_VOLRA_VDD_CORE_L_MASK,

	.smps_cmdra_mask = OMAP4430_CMDRA_VDD_CORE_L_MASK,

};

arch/arm/mach-omap2/voltage.h

+4 −4
Original line number Diff line number Diff line
@@ -103,10 +103,10 @@ struct omap_volt_data { 
 * @slew_rate:	PMIC slew rate (in uv/us)

 * @step_size:	PMIC voltage step size (in uv)

 * @i2c_slave_addr: I2C slave address of PMIC

 * @vsel_to_uv:	PMIC API to convert vsel value to actual voltage in uV.

 * @uv_to_vsel:	PMIC API to convert voltage in uV to vsel value.

 * @volt_reg_addr: voltage configuration register address

 * @cmd_reg_addr: command (on, on-LP, ret, off) configuration register address

 * @vsel_to_uv:	PMIC API to convert vsel value to actual voltage in uV.

 * @uv_to_vsel:	PMIC API to convert voltage in uV to vsel value.

 */

struct omap_volt_pmic_info {

	int slew_rate;
@@ -117,14 +117,14 @@ struct omap_volt_pmic_info { 
	u32 off_volt;

	u16 volt_setup_time;

	u16 i2c_slave_addr;

	u16 volt_reg_addr;

	u16 cmd_reg_addr;

	u8 vp_erroroffset;

	u8 vp_vstepmin;

	u8 vp_vstepmax;

	u8 vp_vddmin;

	u8 vp_vddmax;

	u8 vp_timeout_us;

	u8 volt_reg_addr;

	u8 cmd_reg_addr;

	unsigned long (*vsel_to_uv) (const u8 vsel);

	u8 (*uv_to_vsel) (unsigned long uV);

};