Viewing file:  rohm-bd957x.h (4.26 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* SPDX-License-Identifier: GPL-2.0-or-later */
/* Copyright (C) 2021 ROHM Semiconductors */
#ifndef __LINUX_MFD_BD957X_H__
#define __LINUX_MFD_BD957X_H__
enum {
BD957X_VD50,
BD957X_VD18,
BD957X_VDDDR,
BD957X_VD10,
BD957X_VOUTL1,
BD957X_VOUTS1,
};
/*
* The BD9576 has own IRQ 'blocks' for:
* - I2C/thermal,
* - Over voltage protection
* - Short-circuit protection
* - Over current protection
* - Over voltage detection
* - Under voltage detection
* - Under voltage protection
* - 'system interrupt'.
*
* Each of the blocks have a status register giving more accurate IRQ source
* information - for example which of the regulators have over-voltage.
*
* On top of this, there is "main IRQ" status register where each bit indicates
* which of sub-blocks have active IRQs. Fine. That would fit regmap-irq main
* status handling. Except that:
* - Only some sub-IRQs can be masked.
* - The IRQ informs us about fault-condition, not when fault state changes.
* The IRQ line it is kept asserted until the detected condition is acked
* AND cleared in HW. This is annoying for IRQs like the one informing high
* temperature because if IRQ is not disabled it keeps the CPU in IRQ
* handling loop.
*
* For now we do just use the main-IRQ register as source for our IRQ
* information and bind the regmap-irq to this. We leave fine-grained sub-IRQ
* register handling to handlers in sub-devices. The regulator driver shall
* read which regulators are source for problem - or if the detected error is
* regulator temperature error. The sub-drivers do also handle masking of "sub-
* IRQs" if this is supported/needed.
*
* To overcome the problem with HW keeping IRQ asserted we do call
* disable_irq_nosync() from sub-device handler and add a delayed work to
* re-enable IRQ roughly 1 second later. This should keep our CPU out of
* busy-loop.
*/
#define IRQS_SILENT_MS 1000
enum {
BD9576_INT_THERM,
BD9576_INT_OVP,
BD9576_INT_SCP,
BD9576_INT_OCP,
BD9576_INT_OVD,
BD9576_INT_UVD,
BD9576_INT_UVP,
BD9576_INT_SYS,
};
#define BD957X_REG_SMRB_ASSERT 0x15
#define BD957X_REG_PMIC_INTERNAL_STAT 0x20
#define BD957X_REG_INT_THERM_STAT 0x23
#define BD957X_REG_INT_THERM_MASK 0x24
#define BD957X_REG_INT_OVP_STAT 0x25
#define BD957X_REG_INT_SCP_STAT 0x26
#define BD957X_REG_INT_OCP_STAT 0x27
#define BD957X_REG_INT_OVD_STAT 0x28
#define BD957X_REG_INT_UVD_STAT 0x29
#define BD957X_REG_INT_UVP_STAT 0x2a
#define BD957X_REG_INT_SYS_STAT 0x2b
#define BD957X_REG_INT_SYS_MASK 0x2c
#define BD957X_REG_INT_MAIN_STAT 0x30
#define BD957X_REG_INT_MAIN_MASK 0x31
#define UVD_IRQ_VALID_MASK 0x6F
#define OVD_IRQ_VALID_MASK 0x2F
#define BD957X_MASK_INT_MAIN_THERM BIT(0)
#define BD957X_MASK_INT_MAIN_OVP BIT(1)
#define BD957X_MASK_INT_MAIN_SCP BIT(2)
#define BD957X_MASK_INT_MAIN_OCP BIT(3)
#define BD957X_MASK_INT_MAIN_OVD BIT(4)
#define BD957X_MASK_INT_MAIN_UVD BIT(5)
#define BD957X_MASK_INT_MAIN_UVP BIT(6)
#define BD957X_MASK_INT_MAIN_SYS BIT(7)
#define BD957X_MASK_INT_ALL 0xff
#define BD957X_REG_WDT_CONF 0x16
#define BD957X_REG_POW_TRIGGER1 0x41
#define BD957X_REG_POW_TRIGGER2 0x42
#define BD957X_REG_POW_TRIGGER3 0x43
#define BD957X_REG_POW_TRIGGER4 0x44
#define BD957X_REG_POW_TRIGGERL1 0x45
#define BD957X_REG_POW_TRIGGERS1 0x46
#define BD957X_REGULATOR_EN_MASK 0xff
#define BD957X_REGULATOR_DIS_VAL 0xff
#define BD957X_VSEL_REG_MASK 0xff
#define BD957X_MASK_VOUT1_TUNE 0x87
#define BD957X_MASK_VOUT2_TUNE 0x87
#define BD957X_MASK_VOUT3_TUNE 0x1f
#define BD957X_MASK_VOUT4_TUNE 0x1f
#define BD957X_MASK_VOUTL1_TUNE 0x87
#define BD957X_REG_VOUT1_TUNE 0x50
#define BD957X_REG_VOUT2_TUNE 0x53
#define BD957X_REG_VOUT3_TUNE 0x56
#define BD957X_REG_VOUT4_TUNE 0x59
#define BD957X_REG_VOUTL1_TUNE 0x5c
#define BD9576_REG_VOUT1_OVD 0x51
#define BD9576_REG_VOUT1_UVD 0x52
#define BD9576_REG_VOUT2_OVD 0x54
#define BD9576_REG_VOUT2_UVD 0x55
#define BD9576_REG_VOUT3_OVD 0x57
#define BD9576_REG_VOUT3_UVD 0x58
#define BD9576_REG_VOUT4_OVD 0x5a
#define BD9576_REG_VOUT4_UVD 0x5b
#define BD9576_REG_VOUTL1_OVD 0x5d
#define BD9576_REG_VOUTL1_UVD 0x5e
#define BD9576_MASK_XVD 0x7f
#define BD9576_REG_VOUT1S_OCW 0x5f
#define BD9576_REG_VOUT1S_OCP 0x60
#define BD9576_MASK_VOUT1S_OCW 0x3f
#define BD9576_MASK_VOUT1S_OCP 0x3f
#define BD957X_MAX_REGISTER 0x61
#endif
|