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gerrit-public.fairphone.software / kernel / msm-4.9 / d84adcf46b9c235d1f4975b72a8c2763dbfb0081 / . / arch / arm / mach-omap2 / vc.h
blob: 51d36a80b131c8d930f9e9c706bd79924975b04e [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
Kevin Hilmana7460daf2011-03-16 13:35:22 -0700[diff] [blame]28 * @prm_mod: PRM module id used for PRM register access
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]29 * @smps_sa_reg: Offset of PRM_VC_SMPS_SA reg from PRM start
30 * @smps_volra_reg: Offset of PRM_VC_SMPS_VOL_RA reg from PRM start
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;
Kevin Hilmana7460daf2011-03-16 13:35:22 -0700[diff] [blame]46 s16 prm_mod;
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]47 u8 smps_sa_reg;
48 u8 smps_volra_reg;
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
61 * @common: pointer to VC common data for this platform
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]62 * @smps_sa_mask: SA* bitmask in the PRM_VC_SMPS_SA register
63 * @smps_volra_mask: VOLRA* bitmask in the PRM_VC_VOL_RA register
64 * @smps_sa_shift: SA* field shift in the PRM_VC_SMPS_SA register
65 * @smps_volra_shift: VOLRA* field shift in the PRM_VC_VOL_RA register
66 *
67 * XXX It is not necessary to have both a *_mask and a *_shift -
68 * remove one
69 */
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame^]70struct omap_vc_channel {
71 const struct omap_vc_common *common;
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]72 u32 smps_sa_mask;
73 u32 smps_volra_mask;
74 u8 cmdval_reg;
75 u8 smps_sa_shift;
76 u8 smps_volra_shift;
77};
78
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame^]79extern struct omap_vc_channel omap3_vc_mpu;
80extern struct omap_vc_channel omap3_vc_core;
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]81
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame^]82extern struct omap_vc_channel omap4_vc_mpu;
83extern struct omap_vc_channel omap4_vc_iva;
84extern struct omap_vc_channel omap4_vc_core;
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]85
Kevin Hilmanccd5ca72011-03-21 14:08:55 -0700[diff] [blame]86void omap_vc_init_channel(struct voltagedomain *voltdm);
87int omap_vc_pre_scale(struct voltagedomain *voltdm,
88 unsigned long target_volt,
89 u8 *target_vsel, u8 *current_vsel);
90void omap_vc_post_scale(struct voltagedomain *voltdm,
91 unsigned long target_volt,
92 u8 target_vsel, u8 current_vsel);
Kevin Hilmand84adcf2011-03-22 16:14:57 -0700[diff] [blame^]93int omap_vc_bypass_scale(struct voltagedomain *voltdm,
94 unsigned long target_volt);
Kevin Hilmanccd5ca72011-03-21 14:08:55 -0700[diff] [blame]95
Paul Walmsleyc0718df2011-03-10 22:17:45 -0700[diff] [blame]96#endif
97