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sunxi: axp221: Add axp223 support

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The axp223 appears to be the same as the axp221, except that it uses the
rsb to communicate rather then the p2wi. At least all the registers we use
are 100% the same.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
This commit is contained in:
Hans de Goede 2014-11-29 23:54:25 +01:00
parent 66ebea06f7
commit bdcdf84631
4 changed files with 76 additions and 26 deletions
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2
arch/arm/cpu/armv7/sunxi/cpu_info.c
View file

@ -76,7 +76,7 @@ int print_cpuinfo(void)
int sunxi_get_sid(unsigned int *sid)
{
#ifdef CONFIG_MACH_SUN6I
#if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I
#ifdef CONFIG_AXP221_POWER
return axp221_get_sid(sid);
#else

8
drivers/power/Kconfig
View file

@ -1,10 +1,10 @@
config AXP221_POWER
boolean "axp221 pmic support"
depends on MACH_SUN6I
boolean "axp221 / axp223 pmic support"
depends on MACH_SUN6I || MACH_SUN8I
default y
---help---
Say y here to enable support for the axp221 pmic found on most sun6i
(A31) boards.
Say y here to enable support for the axp221 / axp223 pmic found on most
sun6i (A31) / sun8i (A23) boards.
config AXP221_DLDO1_VOLT
int "axp221 dldo1 voltage"

88
drivers/power/axp221.c
View file

@ -1,4 +1,10 @@
/*
* AXP221 and AXP223 driver
*
* IMPORTANT when making changes to this file check that the registers
* used are the same for the axp221 and axp223.
*
* (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com>
* (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl>
*
* SPDX-License-Identifier: GPL-2.0+
@ -7,8 +13,50 @@
#include <common.h>
#include <errno.h>
#include <asm/arch/p2wi.h>
#include <asm/arch/rsb.h>
#include <axp221.h>
/*
* The axp221 uses the p2wi bus, the axp223 is identical (for all registers
* used sofar) but uses the rsb bus. These functions abstract this.
*/
static int pmic_bus_init(void)
{
#ifdef CONFIG_MACH_SUN6I
p2wi_init();
return p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
AXP221_INIT_DATA);
#else
int ret;
rsb_init();
ret = rsb_set_device_mode(AXP223_DEVICE_MODE_DATA);
if (ret)
return ret;
return rsb_set_device_address(AXP223_DEVICE_ADDR, AXP223_RUNTIME_ADDR);
#endif
}
static int pmic_bus_read(const u8 addr, u8 *data)
{
#ifdef CONFIG_MACH_SUN6I
return p2wi_read(addr, data);
#else
return rsb_read(AXP223_RUNTIME_ADDR, addr, data);
#endif
}
static int pmic_bus_write(const u8 addr, u8 data)
{
#ifdef CONFIG_MACH_SUN6I
return p2wi_write(addr, data);
#else
return rsb_write(AXP223_RUNTIME_ADDR, addr, data);
#endif
}
static u8 axp221_mvolt_to_cfg(int mvolt, int min, int max, int div)
{
if (mvolt < min)
@ -24,12 +72,12 @@ static int axp221_setbits(u8 reg, u8 bits)
int ret;
u8 val;
ret = p2wi_read(reg, &val);
ret = pmic_bus_read(reg, &val);
if (ret)
return ret;
val |= bits;
return p2wi_write(reg, val);
return pmic_bus_write(reg, val);
}
int axp221_set_dcdc1(unsigned int mvolt)
@ -37,7 +85,7 @@ int axp221_set_dcdc1(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100);
ret = p2wi_write(AXP221_DCDC1_CTRL, cfg);
ret = pmic_bus_write(AXP221_DCDC1_CTRL, cfg);
if (ret)
return ret;
@ -49,28 +97,28 @@ int axp221_set_dcdc2(unsigned int mvolt)
{
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
return p2wi_write(AXP221_DCDC2_CTRL, cfg);
return pmic_bus_write(AXP221_DCDC2_CTRL, cfg);
}
int axp221_set_dcdc3(unsigned int mvolt)
{
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20);
return p2wi_write(AXP221_DCDC3_CTRL, cfg);
return pmic_bus_write(AXP221_DCDC3_CTRL, cfg);
}
int axp221_set_dcdc4(unsigned int mvolt)
{
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
return p2wi_write(AXP221_DCDC4_CTRL, cfg);
return pmic_bus_write(AXP221_DCDC4_CTRL, cfg);
}
int axp221_set_dcdc5(unsigned int mvolt)
{
u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50);
return p2wi_write(AXP221_DCDC5_CTRL, cfg);
return pmic_bus_write(AXP221_DCDC5_CTRL, cfg);
}
int axp221_set_dldo1(unsigned int mvolt)
@ -78,7 +126,7 @@ int axp221_set_dldo1(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
ret = p2wi_write(AXP221_DLDO1_CTRL, cfg);
ret = pmic_bus_write(AXP221_DLDO1_CTRL, cfg);
if (ret)
return ret;
@ -91,7 +139,7 @@ int axp221_set_dldo2(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
ret = p2wi_write(AXP221_DLDO2_CTRL, cfg);
ret = pmic_bus_write(AXP221_DLDO2_CTRL, cfg);
if (ret)
return ret;
@ -104,7 +152,7 @@ int axp221_set_dldo3(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
ret = p2wi_write(AXP221_DLDO3_CTRL, cfg);
ret = pmic_bus_write(AXP221_DLDO3_CTRL, cfg);
if (ret)
return ret;
@ -117,7 +165,7 @@ int axp221_set_dldo4(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
ret = p2wi_write(AXP221_DLDO4_CTRL, cfg);
ret = pmic_bus_write(AXP221_DLDO4_CTRL, cfg);
if (ret)
return ret;
@ -130,7 +178,7 @@ int axp221_set_aldo1(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
ret = p2wi_write(AXP221_ALDO1_CTRL, cfg);
ret = pmic_bus_write(AXP221_ALDO1_CTRL, cfg);
if (ret)
return ret;
@ -143,7 +191,7 @@ int axp221_set_aldo2(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
ret = p2wi_write(AXP221_ALDO2_CTRL, cfg);
ret = pmic_bus_write(AXP221_ALDO2_CTRL, cfg);
if (ret)
return ret;
@ -156,7 +204,7 @@ int axp221_set_aldo3(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
ret = p2wi_write(AXP221_ALDO3_CTRL, cfg);
ret = pmic_bus_write(AXP221_ALDO3_CTRL, cfg);
if (ret)
return ret;
@ -169,13 +217,11 @@ int axp221_init(void)
u8 axp_chip_id;
int ret;
p2wi_init();
ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
AXP221_INIT_DATA);
ret = pmic_bus_init();
if (ret)
return ret;
ret = p2wi_read(AXP221_CHIP_ID, &axp_chip_id);
ret = pmic_bus_read(AXP221_CHIP_ID, &axp_chip_id);
if (ret)
return ret;
@ -194,17 +240,17 @@ int axp221_get_sid(unsigned int *sid)
if (ret)
return ret;
ret = p2wi_write(AXP221_PAGE, 1);
ret = pmic_bus_write(AXP221_PAGE, 1);
if (ret)
return ret;
for (i = 0; i < 16; i++) {
ret = p2wi_read(AXP221_SID + i, &dest[i]);
ret = pmic_bus_read(AXP221_SID + i, &dest[i]);
if (ret)
return ret;
}
p2wi_write(AXP221_PAGE, 0);
pmic_bus_write(AXP221_PAGE, 0);
for (i = 0; i < 4; i++)
sid[i] = be32_to_cpu(sid[i]);

4
include/axp221.h
View file

@ -10,6 +10,10 @@
#define AXP221_CTRL_ADDR 0x3e
#define AXP221_INIT_DATA 0x3e
#define AXP223_DEVICE_ADDR 0x3a3
#define AXP223_RUNTIME_ADDR 0x2d
#define AXP223_DEVICE_MODE_DATA 0x7c3e00
/* Page 0 addresses */
#define AXP221_CHIP_ID 0x03
#define AXP221_OUTPUT_CTRL1 0x10