aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/vc.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-omap2/vc.h')
-rw-r--r--arch/arm/mach-omap2/vc.h88
1 files changed, 65 insertions, 23 deletions
diff --git a/arch/arm/mach-omap2/vc.h b/arch/arm/mach-omap2/vc.h
index e776777..478bf6b 100644
--- a/arch/arm/mach-omap2/vc.h
+++ b/arch/arm/mach-omap2/vc.h
@@ -19,12 +19,12 @@
#include <linux/kernel.h>
+struct voltagedomain;
+
/**
- * struct omap_vc_common_data - per-VC register/bitfield data
+ * struct omap_vc_common - per-VC register/bitfield data
* @cmd_on_mask: ON bitmask in PRM_VC_CMD_VAL* register
* @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
* @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
@@ -33,15 +33,16 @@
* @cmd_onlp_shift: ONLP field shift in PRM_VC_CMD_VAL_* register
* @cmd_ret_shift: RET field shift in PRM_VC_CMD_VAL_* register
* @cmd_off_shift: OFF field shift in PRM_VC_CMD_VAL_* register
+ * @i2c_cfg_reg: I2C configuration register offset
+ * @i2c_cfg_hsen_mask: high-speed mode bit field mask in I2C config register
+ * @i2c_mcode_mask: MCODE field mask for I2C config register
*
* XXX One of cmd_on_mask and cmd_on_shift are not needed
* XXX VALID should probably be a shift, not a mask
*/
-struct omap_vc_common_data {
+struct omap_vc_common {
u32 cmd_on_mask;
u32 valid;
- u8 smps_sa_reg;
- u8 smps_volra_reg;
u8 bypass_val_reg;
u8 data_shift;
u8 slaveaddr_shift;
@@ -50,34 +51,75 @@ struct omap_vc_common_data {
u8 cmd_onlp_shift;
u8 cmd_ret_shift;
u8 cmd_off_shift;
+ u8 i2c_cfg_reg;
+ u8 i2c_cfg_hsen_mask;
+ u8 i2c_mcode_mask;
};
+/* omap_vc_channel.flags values */
+#define OMAP_VC_CHANNEL_DEFAULT BIT(0)
+#define OMAP_VC_CHANNEL_CFG_MUTANT BIT(1)
+
/**
- * struct omap_vc_instance_data - VC per-instance data
- * @vc_common: pointer to VC common data for this platform
- * @smps_sa_mask: SA* bitmask in the PRM_VC_SMPS_SA register
- * @smps_volra_mask: VOLRA* bitmask in the PRM_VC_VOL_RA register
- * @smps_sa_shift: SA* field shift in the PRM_VC_SMPS_SA register
- * @smps_volra_shift: VOLRA* field shift in the PRM_VC_VOL_RA register
+ * 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
+ * @setup_time: setup time (in sys_clk cycles) of regulator for this channel
+ * @cfg_channel: current value of VC channel configuration register
+ * @i2c_high_speed: whether or not to use I2C high-speed mode
*
- * XXX It is not necessary to have both a *_mask and a *_shift -
- * remove one
+ * @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_cmdra_mask: CMDRA* bitmask in the PRM_VC_CMD_RA register
+ * @cmdval_reg: register for on/ret/off voltage level values for this channel
+ * @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
+ * @cfg_channel_reg: VC channel configuration register
+ * @cfg_channel_sa_shift: bit shift for slave address cfg_channel register
+ * @flags: VC channel-specific flags (optional)
*/
-struct omap_vc_instance_data {
- const struct omap_vc_common_data *vc_common;
+struct omap_vc_channel {
+ /* channel state */
+ u16 i2c_slave_addr;
+ u16 volt_reg_addr;
+ u16 cmd_reg_addr;
+ u16 setup_time;
+ u8 cfg_channel;
+ bool i2c_high_speed;
+
+ /* 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_sa_shift;
- u8 smps_volra_shift;
+ u8 smps_sa_reg;
+ u8 smps_volra_reg;
+ u8 smps_cmdra_reg;
+ u8 cfg_channel_reg;
+ u8 cfg_channel_sa_shift;
+ u8 flags;
};
-extern struct omap_vc_instance_data omap3_vc1_data;
-extern struct omap_vc_instance_data omap3_vc2_data;
+extern struct omap_vc_channel omap3_vc_mpu;
+extern struct omap_vc_channel omap3_vc_core;
+
+extern struct omap_vc_channel omap4_vc_mpu;
+extern struct omap_vc_channel omap4_vc_iva;
+extern struct omap_vc_channel omap4_vc_core;
-extern struct omap_vc_instance_data omap4_vc_mpu_data;
-extern struct omap_vc_instance_data omap4_vc_iva_data;
-extern struct omap_vc_instance_data omap4_vc_core_data;
+void omap_vc_init_channel(struct voltagedomain *voltdm);
+int omap_vc_pre_scale(struct voltagedomain *voltdm,
+ unsigned long target_volt,
+ u8 *target_vsel, u8 *current_vsel);
+void omap_vc_post_scale(struct voltagedomain *voltdm,
+ unsigned long target_volt,
+ u8 target_vsel, u8 current_vsel);
+int omap_vc_bypass_scale(struct voltagedomain *voltdm,
+ unsigned long target_volt);
#endif