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gerrit-public.fairphone.software / kernel / msm-4.9 / 5892bb1fc6430d086f5c2a4216f9ed00070e31ad / . / arch / arm / mach-omap2 / vc.h
blob: 6e8806b598237db0b559674eb9b87c2ac00b41b9 [file] [log] [blame]
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]1/*
2 * OMAP3/4 Voltage Controller (VC) structure and macro definitions
3 *
4 * Copyright (C) 2007, 2010 Texas Instruments, Inc.
5 * Rajendra Nayak <rnayak@ti.com>
6 * Lesly A M <x0080970@ti.com>
7 * Thara Gopinath <thara@ti.com>
8 *
9 * Copyright (C) 2008, 2011 Nokia Corporation
10 * Kalle Jokiniemi
11 * Paul Walmsley
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License version
15 * 2 as published by the Free Software Foundation.
16 */
17#ifndef __ARCH_ARM_MACH_OMAP2_VC_H
18#define __ARCH_ARM_MACH_OMAP2_VC_H
19
20#include <linux/kernel.h>
21
Kevin Hilmanccd5ca72011-03-21 14:08:55 -0700[diff] [blame]22struct voltagedomain;
23
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]24/**
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame]25 * struct omap_vc_common - per-VC register/bitfield data
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]26 * @cmd_on_mask: ON bitmask in PRM_VC_CMD_VAL* register
27 * @valid: VALID bitmask in PRM_VC_BYPASS_VAL register
28 * @smps_sa_reg: Offset of PRM_VC_SMPS_SA reg from PRM start
29 * @smps_volra_reg: Offset of PRM_VC_SMPS_VOL_RA reg from PRM start
Kevin Hilmane4e021c2011-06-09 11:01:55 -0700[diff] [blame]30 * @smps_cmdra_reg: Offset of PRM_VC_SMPS_CMD_RA reg from PRM start
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]31 * @bypass_val_reg: Offset of PRM_VC_BYPASS_VAL reg from PRM start
32 * @data_shift: DATA field shift in PRM_VC_BYPASS_VAL register
33 * @slaveaddr_shift: SLAVEADDR field shift in PRM_VC_BYPASS_VAL register
34 * @regaddr_shift: REGADDR field shift in PRM_VC_BYPASS_VAL register
35 * @cmd_on_shift: ON field shift in PRM_VC_CMD_VAL_* register
36 * @cmd_onlp_shift: ONLP field shift in PRM_VC_CMD_VAL_* register
37 * @cmd_ret_shift: RET field shift in PRM_VC_CMD_VAL_* register
38 * @cmd_off_shift: OFF field shift in PRM_VC_CMD_VAL_* register
39 *
40 * XXX One of cmd_on_mask and cmd_on_shift are not needed
41 * XXX VALID should probably be a shift, not a mask
42 */
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame]43struct omap_vc_common {
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]44 u32 cmd_on_mask;
45 u32 valid;
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]46 u8 smps_sa_reg;
47 u8 smps_volra_reg;
Kevin Hilmane4e021c2011-06-09 11:01:55 -0700[diff] [blame]48 u8 smps_cmdra_reg;
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]49 u8 bypass_val_reg;
50 u8 data_shift;
51 u8 slaveaddr_shift;
52 u8 regaddr_shift;
53 u8 cmd_on_shift;
54 u8 cmd_onlp_shift;
55 u8 cmd_ret_shift;
56 u8 cmd_off_shift;
57};
58
59/**
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame]60 * struct omap_vc_channel - VC per-instance data
Kevin Hilmanba112a42011-03-29 14:02:36 -0700[diff] [blame]61 * @i2c_slave_addr: I2C slave address of PMIC for this VC channel
Kevin Hilmane4e021c2011-06-09 11:01:55 -0700[diff] [blame]62 * @volt_reg_addr: voltage configuration register address
63 * @cmd_reg_addr: command configuration register address
Kevin Hilman5892bb12011-03-29 14:36:04 -0700[diff] [blame^]64 * @setup_time: setup time (in sys_clk cycles) of regulator for this channel
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame]65 * @common: pointer to VC common data for this platform
Kevin Hilmanba112a42011-03-29 14:02:36 -0700[diff] [blame]66 * @smps_sa_mask: i2c slave address bitmask in the PRM_VC_SMPS_SA register
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]67 * @smps_volra_mask: VOLRA* bitmask in the PRM_VC_VOL_RA register
Kevin Hilmane4e021c2011-06-09 11:01:55 -0700[diff] [blame]68 * @smps_cmdra_mask: CMDRA* bitmask in the PRM_VC_CMD_RA register
69 * @cmdval_reg: register for on/ret/off voltage level values for this channel
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]70 */
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame]71struct omap_vc_channel {
Kevin Hilmanba112a42011-03-29 14:02:36 -0700[diff] [blame]72 /* channel state */
73 u16 i2c_slave_addr;
Kevin Hilmane4e021c2011-06-09 11:01:55 -0700[diff] [blame]74 u16 volt_reg_addr;
75 u16 cmd_reg_addr;
Kevin Hilman5892bb12011-03-29 14:36:04 -0700[diff] [blame^]76 u16 setup_time;
Kevin Hilmanba112a42011-03-29 14:02:36 -0700[diff] [blame]77
78 /* register access data */
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame]79 const struct omap_vc_common *common;
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]80 u32 smps_sa_mask;
81 u32 smps_volra_mask;
Kevin Hilmane4e021c2011-06-09 11:01:55 -0700[diff] [blame]82 u32 smps_cmdra_mask;
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]83 u8 cmdval_reg;
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]84};
85
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame]86extern struct omap_vc_channel omap3_vc_mpu;
87extern struct omap_vc_channel omap3_vc_core;
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]88
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame]89extern struct omap_vc_channel omap4_vc_mpu;
90extern struct omap_vc_channel omap4_vc_iva;
91extern struct omap_vc_channel omap4_vc_core;
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]92
Kevin Hilmanccd5ca72011-03-21 14:08:55 -0700[diff] [blame]93void omap_vc_init_channel(struct voltagedomain *voltdm);
94int omap_vc_pre_scale(struct voltagedomain *voltdm,
95 unsigned long target_volt,
96 u8 *target_vsel, u8 *current_vsel);
97void omap_vc_post_scale(struct voltagedomain *voltdm,
98 unsigned long target_volt,
99 u8 target_vsel, u8 current_vsel);
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame]100int omap_vc_bypass_scale(struct voltagedomain *voltdm,
101 unsigned long target_volt);
Kevin Hilmanccd5ca72011-03-21 14:08:55 -0700[diff] [blame]102
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]103#endif
104