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![Linus Walleij](/assets/img/avatar_default.png)
There was an "unknown" firmware variant turning up in the wild causing problems in the clock driver. Add this missing variant and clarify that varian 11 and 15 are Samsung variants, as this is now very well known from released products. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
618 lines
14 KiB
C
618 lines
14 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) ST Ericsson SA 2011
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*
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* STE Ux500 PRCMU API
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*/
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#ifndef __MACH_PRCMU_H
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#define __MACH_PRCMU_H
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#include <linux/interrupt.h>
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#include <linux/notifier.h>
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#include <linux/err.h>
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#include <dt-bindings/mfd/dbx500-prcmu.h> /* For clock identifiers */
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/* Offset for the firmware version within the TCPM */
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#define DB8500_PRCMU_FW_VERSION_OFFSET 0xA4
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#define DBX540_PRCMU_FW_VERSION_OFFSET 0xA8
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/* PRCMU Wakeup defines */
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enum prcmu_wakeup_index {
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PRCMU_WAKEUP_INDEX_RTC,
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PRCMU_WAKEUP_INDEX_RTT0,
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PRCMU_WAKEUP_INDEX_RTT1,
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PRCMU_WAKEUP_INDEX_HSI0,
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PRCMU_WAKEUP_INDEX_HSI1,
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PRCMU_WAKEUP_INDEX_USB,
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PRCMU_WAKEUP_INDEX_ABB,
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PRCMU_WAKEUP_INDEX_ABB_FIFO,
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PRCMU_WAKEUP_INDEX_ARM,
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PRCMU_WAKEUP_INDEX_CD_IRQ,
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NUM_PRCMU_WAKEUP_INDICES
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};
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#define PRCMU_WAKEUP(_name) (BIT(PRCMU_WAKEUP_INDEX_##_name))
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/* EPOD (power domain) IDs */
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/*
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* DB8500 EPODs
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* - EPOD_ID_SVAMMDSP: power domain for SVA MMDSP
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* - EPOD_ID_SVAPIPE: power domain for SVA pipe
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* - EPOD_ID_SIAMMDSP: power domain for SIA MMDSP
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* - EPOD_ID_SIAPIPE: power domain for SIA pipe
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* - EPOD_ID_SGA: power domain for SGA
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* - EPOD_ID_B2R2_MCDE: power domain for B2R2 and MCDE
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* - EPOD_ID_ESRAM12: power domain for ESRAM 1 and 2
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* - EPOD_ID_ESRAM34: power domain for ESRAM 3 and 4
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* - NUM_EPOD_ID: number of power domains
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*
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* TODO: These should be prefixed.
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*/
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#define EPOD_ID_SVAMMDSP 0
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#define EPOD_ID_SVAPIPE 1
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#define EPOD_ID_SIAMMDSP 2
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#define EPOD_ID_SIAPIPE 3
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#define EPOD_ID_SGA 4
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#define EPOD_ID_B2R2_MCDE 5
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#define EPOD_ID_ESRAM12 6
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#define EPOD_ID_ESRAM34 7
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#define NUM_EPOD_ID 8
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/*
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* state definition for EPOD (power domain)
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* - EPOD_STATE_NO_CHANGE: The EPOD should remain unchanged
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* - EPOD_STATE_OFF: The EPOD is switched off
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* - EPOD_STATE_RAMRET: The EPOD is switched off with its internal RAM in
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* retention
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* - EPOD_STATE_ON_CLK_OFF: The EPOD is switched on, clock is still off
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* - EPOD_STATE_ON: Same as above, but with clock enabled
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*/
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#define EPOD_STATE_NO_CHANGE 0x00
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#define EPOD_STATE_OFF 0x01
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#define EPOD_STATE_RAMRET 0x02
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#define EPOD_STATE_ON_CLK_OFF 0x03
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#define EPOD_STATE_ON 0x04
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/*
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* CLKOUT sources
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*/
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#define PRCMU_CLKSRC_CLK38M 0x00
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#define PRCMU_CLKSRC_ACLK 0x01
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#define PRCMU_CLKSRC_SYSCLK 0x02
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#define PRCMU_CLKSRC_LCDCLK 0x03
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#define PRCMU_CLKSRC_SDMMCCLK 0x04
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#define PRCMU_CLKSRC_TVCLK 0x05
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#define PRCMU_CLKSRC_TIMCLK 0x06
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#define PRCMU_CLKSRC_CLK009 0x07
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/* These are only valid for CLKOUT1: */
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#define PRCMU_CLKSRC_SIAMMDSPCLK 0x40
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#define PRCMU_CLKSRC_I2CCLK 0x41
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#define PRCMU_CLKSRC_MSP02CLK 0x42
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#define PRCMU_CLKSRC_ARMPLL_OBSCLK 0x43
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#define PRCMU_CLKSRC_HSIRXCLK 0x44
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#define PRCMU_CLKSRC_HSITXCLK 0x45
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#define PRCMU_CLKSRC_ARMCLKFIX 0x46
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#define PRCMU_CLKSRC_HDMICLK 0x47
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/**
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* enum prcmu_wdog_id - PRCMU watchdog IDs
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* @PRCMU_WDOG_ALL: use all timers
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* @PRCMU_WDOG_CPU1: use first CPU timer only
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* @PRCMU_WDOG_CPU2: use second CPU timer conly
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*/
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enum prcmu_wdog_id {
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PRCMU_WDOG_ALL = 0x00,
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PRCMU_WDOG_CPU1 = 0x01,
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PRCMU_WDOG_CPU2 = 0x02,
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};
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/**
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* enum ape_opp - APE OPP states definition
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* @APE_OPP_INIT:
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* @APE_NO_CHANGE: The APE operating point is unchanged
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* @APE_100_OPP: The new APE operating point is ape100opp
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* @APE_50_OPP: 50%
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* @APE_50_PARTLY_25_OPP: 50%, except some clocks at 25%.
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*/
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enum ape_opp {
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APE_OPP_INIT = 0x00,
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APE_NO_CHANGE = 0x01,
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APE_100_OPP = 0x02,
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APE_50_OPP = 0x03,
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APE_50_PARTLY_25_OPP = 0xFF,
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};
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/**
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* enum arm_opp - ARM OPP states definition
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* @ARM_OPP_INIT:
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* @ARM_NO_CHANGE: The ARM operating point is unchanged
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* @ARM_100_OPP: The new ARM operating point is arm100opp
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* @ARM_50_OPP: The new ARM operating point is arm50opp
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* @ARM_MAX_OPP: Operating point is "max" (more than 100)
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* @ARM_MAX_FREQ100OPP: Set max opp if available, else 100
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* @ARM_EXTCLK: The new ARM operating point is armExtClk
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*/
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enum arm_opp {
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ARM_OPP_INIT = 0x00,
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ARM_NO_CHANGE = 0x01,
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ARM_100_OPP = 0x02,
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ARM_50_OPP = 0x03,
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ARM_MAX_OPP = 0x04,
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ARM_MAX_FREQ100OPP = 0x05,
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ARM_EXTCLK = 0x07
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};
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/**
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* enum ddr_opp - DDR OPP states definition
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* @DDR_100_OPP: The new DDR operating point is ddr100opp
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* @DDR_50_OPP: The new DDR operating point is ddr50opp
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* @DDR_25_OPP: The new DDR operating point is ddr25opp
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*/
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enum ddr_opp {
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DDR_100_OPP = 0x00,
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DDR_50_OPP = 0x01,
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DDR_25_OPP = 0x02,
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};
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/*
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* Definitions for controlling ESRAM0 in deep sleep.
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*/
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#define ESRAM0_DEEP_SLEEP_STATE_OFF 1
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#define ESRAM0_DEEP_SLEEP_STATE_RET 2
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/**
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* enum ddr_pwrst - DDR power states definition
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* @DDR_PWR_STATE_UNCHANGED: SDRAM and DDR controller state is unchanged
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* @DDR_PWR_STATE_ON:
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* @DDR_PWR_STATE_OFFLOWLAT:
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* @DDR_PWR_STATE_OFFHIGHLAT:
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*/
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enum ddr_pwrst {
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DDR_PWR_STATE_UNCHANGED = 0x00,
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DDR_PWR_STATE_ON = 0x01,
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DDR_PWR_STATE_OFFLOWLAT = 0x02,
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DDR_PWR_STATE_OFFHIGHLAT = 0x03
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};
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#define DB8500_PRCMU_LEGACY_OFFSET 0xDD4
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#define PRCMU_FW_PROJECT_U8500 2
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#define PRCMU_FW_PROJECT_U8400 3
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#define PRCMU_FW_PROJECT_U9500 4 /* Customer specific */
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#define PRCMU_FW_PROJECT_U8500_MBB 5
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#define PRCMU_FW_PROJECT_U8500_C1 6
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#define PRCMU_FW_PROJECT_U8500_C2 7
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#define PRCMU_FW_PROJECT_U8500_C3 8
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#define PRCMU_FW_PROJECT_U8500_C4 9
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#define PRCMU_FW_PROJECT_U9500_MBL 10
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#define PRCMU_FW_PROJECT_U8500_SSG1 11 /* Samsung specific */
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#define PRCMU_FW_PROJECT_U8500_MBL2 12 /* Customer specific */
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#define PRCMU_FW_PROJECT_U8520 13
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#define PRCMU_FW_PROJECT_U8420 14
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#define PRCMU_FW_PROJECT_U8500_SSG2 15 /* Samsung specific */
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#define PRCMU_FW_PROJECT_U8420_SYSCLK 17
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#define PRCMU_FW_PROJECT_A9420 20
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/* [32..63] 9540 and derivatives */
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#define PRCMU_FW_PROJECT_U9540 32
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/* [64..95] 8540 and derivatives */
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#define PRCMU_FW_PROJECT_L8540 64
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/* [96..126] 8580 and derivatives */
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#define PRCMU_FW_PROJECT_L8580 96
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#define PRCMU_FW_PROJECT_NAME_LEN 20
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struct prcmu_fw_version {
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u32 project; /* Notice, project shifted with 8 on ux540 */
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u8 api_version;
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u8 func_version;
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u8 errata;
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char project_name[PRCMU_FW_PROJECT_NAME_LEN];
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};
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#include <linux/mfd/db8500-prcmu.h>
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#if defined(CONFIG_UX500_SOC_DB8500)
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static inline void prcmu_early_init(void)
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{
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return db8500_prcmu_early_init();
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}
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static inline int prcmu_set_power_state(u8 state, bool keep_ulp_clk,
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bool keep_ap_pll)
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{
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return db8500_prcmu_set_power_state(state, keep_ulp_clk,
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keep_ap_pll);
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}
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static inline u8 prcmu_get_power_state_result(void)
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{
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return db8500_prcmu_get_power_state_result();
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}
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static inline int prcmu_set_epod(u16 epod_id, u8 epod_state)
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{
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return db8500_prcmu_set_epod(epod_id, epod_state);
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}
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static inline void prcmu_enable_wakeups(u32 wakeups)
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{
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db8500_prcmu_enable_wakeups(wakeups);
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}
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static inline void prcmu_disable_wakeups(void)
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{
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prcmu_enable_wakeups(0);
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}
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static inline void prcmu_config_abb_event_readout(u32 abb_events)
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{
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db8500_prcmu_config_abb_event_readout(abb_events);
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}
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static inline void prcmu_get_abb_event_buffer(void __iomem **buf)
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{
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db8500_prcmu_get_abb_event_buffer(buf);
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}
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int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size);
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int prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size);
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int prcmu_abb_write_masked(u8 slave, u8 reg, u8 *value, u8 *mask, u8 size);
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int prcmu_config_clkout(u8 clkout, u8 source, u8 div);
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static inline int prcmu_request_clock(u8 clock, bool enable)
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{
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return db8500_prcmu_request_clock(clock, enable);
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}
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unsigned long prcmu_clock_rate(u8 clock);
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long prcmu_round_clock_rate(u8 clock, unsigned long rate);
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int prcmu_set_clock_rate(u8 clock, unsigned long rate);
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static inline int prcmu_get_ddr_opp(void)
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{
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return db8500_prcmu_get_ddr_opp();
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}
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static inline int prcmu_set_arm_opp(u8 opp)
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{
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return db8500_prcmu_set_arm_opp(opp);
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}
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static inline int prcmu_get_arm_opp(void)
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{
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return db8500_prcmu_get_arm_opp();
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}
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static inline int prcmu_set_ape_opp(u8 opp)
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{
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return db8500_prcmu_set_ape_opp(opp);
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}
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static inline int prcmu_get_ape_opp(void)
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{
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return db8500_prcmu_get_ape_opp();
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}
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static inline int prcmu_request_ape_opp_100_voltage(bool enable)
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{
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return db8500_prcmu_request_ape_opp_100_voltage(enable);
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}
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static inline void prcmu_system_reset(u16 reset_code)
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{
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return db8500_prcmu_system_reset(reset_code);
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}
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static inline u16 prcmu_get_reset_code(void)
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{
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return db8500_prcmu_get_reset_code();
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}
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int prcmu_ac_wake_req(void);
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void prcmu_ac_sleep_req(void);
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static inline void prcmu_modem_reset(void)
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{
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return db8500_prcmu_modem_reset();
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}
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static inline bool prcmu_is_ac_wake_requested(void)
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{
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return db8500_prcmu_is_ac_wake_requested();
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}
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static inline int prcmu_config_esram0_deep_sleep(u8 state)
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{
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return db8500_prcmu_config_esram0_deep_sleep(state);
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}
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static inline int prcmu_config_hotdog(u8 threshold)
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{
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return db8500_prcmu_config_hotdog(threshold);
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}
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static inline int prcmu_config_hotmon(u8 low, u8 high)
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{
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return db8500_prcmu_config_hotmon(low, high);
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}
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static inline int prcmu_start_temp_sense(u16 cycles32k)
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{
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return db8500_prcmu_start_temp_sense(cycles32k);
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}
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static inline int prcmu_stop_temp_sense(void)
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{
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return db8500_prcmu_stop_temp_sense();
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}
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static inline u32 prcmu_read(unsigned int reg)
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{
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return db8500_prcmu_read(reg);
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}
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static inline void prcmu_write(unsigned int reg, u32 value)
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{
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db8500_prcmu_write(reg, value);
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}
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static inline void prcmu_write_masked(unsigned int reg, u32 mask, u32 value)
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{
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db8500_prcmu_write_masked(reg, mask, value);
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}
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static inline int prcmu_enable_a9wdog(u8 id)
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{
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return db8500_prcmu_enable_a9wdog(id);
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}
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static inline int prcmu_disable_a9wdog(u8 id)
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{
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return db8500_prcmu_disable_a9wdog(id);
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}
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static inline int prcmu_kick_a9wdog(u8 id)
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{
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return db8500_prcmu_kick_a9wdog(id);
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}
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static inline int prcmu_load_a9wdog(u8 id, u32 timeout)
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{
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return db8500_prcmu_load_a9wdog(id, timeout);
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}
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static inline int prcmu_config_a9wdog(u8 num, bool sleep_auto_off)
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{
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return db8500_prcmu_config_a9wdog(num, sleep_auto_off);
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}
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#else
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static inline void prcmu_early_init(void) {}
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static inline int prcmu_set_power_state(u8 state, bool keep_ulp_clk,
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bool keep_ap_pll)
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{
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return 0;
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}
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static inline int prcmu_set_epod(u16 epod_id, u8 epod_state)
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{
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return 0;
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}
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static inline void prcmu_enable_wakeups(u32 wakeups) {}
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static inline void prcmu_disable_wakeups(void) {}
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static inline int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size)
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{
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return -ENOSYS;
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}
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static inline int prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size)
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{
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return -ENOSYS;
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}
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static inline int prcmu_abb_write_masked(u8 slave, u8 reg, u8 *value, u8 *mask,
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u8 size)
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{
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return -ENOSYS;
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}
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static inline int prcmu_config_clkout(u8 clkout, u8 source, u8 div)
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{
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return 0;
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}
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static inline int prcmu_request_clock(u8 clock, bool enable)
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{
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return 0;
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}
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static inline long prcmu_round_clock_rate(u8 clock, unsigned long rate)
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{
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return 0;
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}
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static inline int prcmu_set_clock_rate(u8 clock, unsigned long rate)
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{
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return 0;
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}
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static inline unsigned long prcmu_clock_rate(u8 clock)
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{
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return 0;
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}
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static inline int prcmu_set_ape_opp(u8 opp)
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{
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return 0;
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}
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static inline int prcmu_get_ape_opp(void)
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{
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return APE_100_OPP;
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}
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static inline int prcmu_request_ape_opp_100_voltage(bool enable)
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{
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return 0;
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}
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static inline int prcmu_set_arm_opp(u8 opp)
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{
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return 0;
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}
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static inline int prcmu_get_arm_opp(void)
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{
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return ARM_100_OPP;
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}
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static inline int prcmu_get_ddr_opp(void)
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{
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return DDR_100_OPP;
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|
}
|
|
|
|
static inline void prcmu_system_reset(u16 reset_code) {}
|
|
|
|
static inline u16 prcmu_get_reset_code(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int prcmu_ac_wake_req(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void prcmu_ac_sleep_req(void) {}
|
|
|
|
static inline void prcmu_modem_reset(void) {}
|
|
|
|
static inline bool prcmu_is_ac_wake_requested(void)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline int prcmu_config_esram0_deep_sleep(u8 state)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void prcmu_config_abb_event_readout(u32 abb_events) {}
|
|
|
|
static inline void prcmu_get_abb_event_buffer(void __iomem **buf)
|
|
{
|
|
*buf = NULL;
|
|
}
|
|
|
|
static inline int prcmu_config_hotdog(u8 threshold)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int prcmu_config_hotmon(u8 low, u8 high)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int prcmu_start_temp_sense(u16 cycles32k)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int prcmu_stop_temp_sense(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline u32 prcmu_read(unsigned int reg)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void prcmu_write(unsigned int reg, u32 value) {}
|
|
|
|
static inline void prcmu_write_masked(unsigned int reg, u32 mask, u32 value) {}
|
|
|
|
#endif
|
|
|
|
static inline void prcmu_set(unsigned int reg, u32 bits)
|
|
{
|
|
prcmu_write_masked(reg, bits, bits);
|
|
}
|
|
|
|
static inline void prcmu_clear(unsigned int reg, u32 bits)
|
|
{
|
|
prcmu_write_masked(reg, bits, 0);
|
|
}
|
|
|
|
/* PRCMU QoS APE OPP class */
|
|
#define PRCMU_QOS_APE_OPP 1
|
|
#define PRCMU_QOS_DDR_OPP 2
|
|
#define PRCMU_QOS_ARM_OPP 3
|
|
#define PRCMU_QOS_DEFAULT_VALUE -1
|
|
|
|
#ifdef CONFIG_DBX500_PRCMU_QOS_POWER
|
|
|
|
unsigned long prcmu_qos_get_cpufreq_opp_delay(void);
|
|
void prcmu_qos_set_cpufreq_opp_delay(unsigned long);
|
|
void prcmu_qos_force_opp(int, s32);
|
|
int prcmu_qos_requirement(int pm_qos_class);
|
|
int prcmu_qos_add_requirement(int pm_qos_class, char *name, s32 value);
|
|
int prcmu_qos_update_requirement(int pm_qos_class, char *name, s32 new_value);
|
|
void prcmu_qos_remove_requirement(int pm_qos_class, char *name);
|
|
int prcmu_qos_add_notifier(int prcmu_qos_class,
|
|
struct notifier_block *notifier);
|
|
int prcmu_qos_remove_notifier(int prcmu_qos_class,
|
|
struct notifier_block *notifier);
|
|
|
|
#else
|
|
|
|
static inline unsigned long prcmu_qos_get_cpufreq_opp_delay(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void prcmu_qos_set_cpufreq_opp_delay(unsigned long n) {}
|
|
|
|
static inline void prcmu_qos_force_opp(int prcmu_qos_class, s32 i) {}
|
|
|
|
static inline int prcmu_qos_requirement(int prcmu_qos_class)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int prcmu_qos_add_requirement(int prcmu_qos_class,
|
|
char *name, s32 value)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int prcmu_qos_update_requirement(int prcmu_qos_class,
|
|
char *name, s32 new_value)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void prcmu_qos_remove_requirement(int prcmu_qos_class, char *name)
|
|
{
|
|
}
|
|
|
|
static inline int prcmu_qos_add_notifier(int prcmu_qos_class,
|
|
struct notifier_block *notifier)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline int prcmu_qos_remove_notifier(int prcmu_qos_class,
|
|
struct notifier_block *notifier)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* __MACH_PRCMU_H */
|