From 1d624a4f08d3a478e38ceb1a048c3da4982021df Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 25 Apr 2015 14:07:37 +0200 Subject: sunxi: axp: Move axp pmic register helpers to a separate file Move the register helpers used to access the registers via p2wi resp. rsb bus on the otherwise identical axp221 and axp223 pmics to a separate file, so that they can be used by the upcoming standalone axp gpio driver too. Signed-off-by: Hans de Goede Reviewed-by: Simon Glass Acked-by: Ian Campbell --- arch/arm/cpu/armv7/sunxi/Makefile | 2 + arch/arm/cpu/armv7/sunxi/pmic_bus.c | 93 ++++++++++++++++ arch/arm/include/asm/arch-sunxi/pmic_bus.h | 18 +++ drivers/power/axp221.c | 172 +++++++++-------------------- include/axp221.h | 7 -- 5 files changed, 166 insertions(+), 126 deletions(-) create mode 100644 arch/arm/cpu/armv7/sunxi/pmic_bus.c create mode 100644 arch/arm/include/asm/arch-sunxi/pmic_bus.h diff --git a/arch/arm/cpu/armv7/sunxi/Makefile b/arch/arm/cpu/armv7/sunxi/Makefile index 3052b27..9a1eeec 100644 --- a/arch/arm/cpu/armv7/sunxi/Makefile +++ b/arch/arm/cpu/armv7/sunxi/Makefile @@ -27,6 +27,8 @@ obj-$(CONFIG_MACH_SUN7I) += clock_sun4i.o obj-$(CONFIG_MACH_SUN8I) += clock_sun6i.o obj-$(CONFIG_MACH_SUN9I) += clock_sun9i.o +obj-$(CONFIG_AXP221_POWER) += pmic_bus.o + ifndef CONFIG_SPL_BUILD ifdef CONFIG_ARMV7_PSCI obj-y += psci.o diff --git a/arch/arm/cpu/armv7/sunxi/pmic_bus.c b/arch/arm/cpu/armv7/sunxi/pmic_bus.c new file mode 100644 index 0000000..389144b --- /dev/null +++ b/arch/arm/cpu/armv7/sunxi/pmic_bus.c @@ -0,0 +1,93 @@ +/* + * (C) Copyright 2015 Hans de Goede + * + * Sunxi PMIC bus access helpers + * + * The axp152 & axp209 use an i2c bus, the axp221 uses the p2wi bus and the + * axp223 uses the rsb bus, these functions abstract this. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include + +#define AXP221_CHIP_ADDR 0x68 +#define AXP221_CTRL_ADDR 0x3e +#define AXP221_INIT_DATA 0x3e + +#define AXP223_DEVICE_ADDR 0x3a3 +#define AXP223_RUNTIME_ADDR 0x2d + +int pmic_bus_init(void) +{ + /* This cannot be 0 because it is used in SPL before BSS is ready */ + static int needs_init = 1; + int ret; + + if (!needs_init) + return 0; + +#ifdef CONFIG_MACH_SUN6I + p2wi_init(); + ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR, + AXP221_INIT_DATA); +#else + ret = rsb_init(); + if (ret) + return ret; + + ret = rsb_set_device_address(AXP223_DEVICE_ADDR, AXP223_RUNTIME_ADDR); +#endif + if (ret) + return ret; + + needs_init = 0; + return 0; +} + +int pmic_bus_read(u8 reg, u8 *data) +{ +#ifdef CONFIG_MACH_SUN6I + return p2wi_read(reg, data); +#else + return rsb_read(AXP223_RUNTIME_ADDR, reg, data); +#endif +} + +int pmic_bus_write(u8 reg, u8 data) +{ +#ifdef CONFIG_MACH_SUN6I + return p2wi_write(reg, data); +#else + return rsb_write(AXP223_RUNTIME_ADDR, reg, data); +#endif +} + +int pmic_bus_setbits(u8 reg, u8 bits) +{ + int ret; + u8 val; + + ret = pmic_bus_read(reg, &val); + if (ret) + return ret; + + val |= bits; + return pmic_bus_write(reg, val); +} + +int pmic_bus_clrbits(u8 reg, u8 bits) +{ + int ret; + u8 val; + + ret = pmic_bus_read(reg, &val); + if (ret) + return ret; + + val &= ~bits; + return pmic_bus_write(reg, val); +} diff --git a/arch/arm/include/asm/arch-sunxi/pmic_bus.h b/arch/arm/include/asm/arch-sunxi/pmic_bus.h new file mode 100644 index 0000000..9c4372a --- /dev/null +++ b/arch/arm/include/asm/arch-sunxi/pmic_bus.h @@ -0,0 +1,18 @@ +/* + * (C) Copyright 2015 Hans de Goede + * + * Sunxi PMIC bus access helpers header + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _SUNXI_PMIC_BUS_H +#define _SUNXI_PMIS_BUS_H + +int pmic_bus_init(void); +int pmic_bus_read(u8 reg, u8 *data); +int pmic_bus_write(u8 reg, u8 data); +int pmic_bus_setbits(u8 reg, u8 bits); +int pmic_bus_clrbits(u8 reg, u8 bits); + +#endif diff --git a/drivers/power/axp221.c b/drivers/power/axp221.c index 4970ab4..d49de86 100644 --- a/drivers/power/axp221.c +++ b/drivers/power/axp221.c @@ -12,50 +12,10 @@ #include #include -#include -#include #include +#include #include -/* - * 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; - - ret = rsb_init(); - 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) @@ -66,52 +26,26 @@ static u8 axp221_mvolt_to_cfg(int mvolt, int min, int max, int div) return (mvolt - min) / div; } -static int axp221_setbits(u8 reg, u8 bits) -{ - int ret; - u8 val; - - ret = pmic_bus_read(reg, &val); - if (ret) - return ret; - - val |= bits; - return pmic_bus_write(reg, val); -} - -static int axp221_clrbits(u8 reg, u8 bits) -{ - int ret; - u8 val; - - ret = pmic_bus_read(reg, &val); - if (ret) - return ret; - - val &= ~bits; - return pmic_bus_write(reg, val); -} - int axp221_set_dcdc1(unsigned int mvolt) { int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_DCDC1_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC1_EN); ret = pmic_bus_write(AXP221_DCDC1_CTRL, cfg); if (ret) return ret; - ret = axp221_setbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DCDC1SW_EN); + ret = pmic_bus_setbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DCDC1SW_EN); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_DCDC1_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC1_EN); } int axp221_set_dcdc2(unsigned int mvolt) @@ -120,15 +54,15 @@ int axp221_set_dcdc2(unsigned int mvolt) u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_DCDC2_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC2_EN); ret = pmic_bus_write(AXP221_DCDC2_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_DCDC2_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC2_EN); } int axp221_set_dcdc3(unsigned int mvolt) @@ -137,15 +71,15 @@ int axp221_set_dcdc3(unsigned int mvolt) u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_DCDC3_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC3_EN); ret = pmic_bus_write(AXP221_DCDC3_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_DCDC3_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC3_EN); } int axp221_set_dcdc4(unsigned int mvolt) @@ -154,15 +88,15 @@ int axp221_set_dcdc4(unsigned int mvolt) u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_DCDC4_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC4_EN); ret = pmic_bus_write(AXP221_DCDC4_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_DCDC4_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC4_EN); } int axp221_set_dcdc5(unsigned int mvolt) @@ -171,15 +105,15 @@ int axp221_set_dcdc5(unsigned int mvolt) u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_DCDC5_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC5_EN); ret = pmic_bus_write(AXP221_DCDC5_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_DCDC5_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC5_EN); } int axp221_set_dldo1(unsigned int mvolt) @@ -188,15 +122,15 @@ int axp221_set_dldo1(unsigned int mvolt) u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO1_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO1_EN); ret = pmic_bus_write(AXP221_DLDO1_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO1_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO1_EN); } int axp221_set_dldo2(unsigned int mvolt) @@ -205,15 +139,15 @@ int axp221_set_dldo2(unsigned int mvolt) u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO2_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO2_EN); ret = pmic_bus_write(AXP221_DLDO2_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO2_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO2_EN); } int axp221_set_dldo3(unsigned int mvolt) @@ -222,15 +156,15 @@ int axp221_set_dldo3(unsigned int mvolt) u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO3_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO3_EN); ret = pmic_bus_write(AXP221_DLDO3_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO3_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO3_EN); } int axp221_set_dldo4(unsigned int mvolt) @@ -239,15 +173,15 @@ int axp221_set_dldo4(unsigned int mvolt) u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO4_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO4_EN); ret = pmic_bus_write(AXP221_DLDO4_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO4_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO4_EN); } int axp221_set_aldo1(unsigned int mvolt) @@ -256,15 +190,15 @@ int axp221_set_aldo1(unsigned int mvolt) u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_ALDO1_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_ALDO1_EN); ret = pmic_bus_write(AXP221_ALDO1_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_ALDO1_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_ALDO1_EN); } int axp221_set_aldo2(unsigned int mvolt) @@ -273,15 +207,15 @@ int axp221_set_aldo2(unsigned int mvolt) u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_ALDO2_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_ALDO2_EN); ret = pmic_bus_write(AXP221_ALDO2_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_ALDO2_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_ALDO2_EN); } int axp221_set_aldo3(unsigned int mvolt) @@ -290,15 +224,15 @@ int axp221_set_aldo3(unsigned int mvolt) u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL3, - AXP221_OUTPUT_CTRL3_ALDO3_EN); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL3, + AXP221_OUTPUT_CTRL3_ALDO3_EN); ret = pmic_bus_write(AXP221_ALDO3_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL3, - AXP221_OUTPUT_CTRL3_ALDO3_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL3, + AXP221_OUTPUT_CTRL3_ALDO3_EN); } int axp221_set_eldo(int eldo_num, unsigned int mvolt) @@ -325,13 +259,13 @@ int axp221_set_eldo(int eldo_num, unsigned int mvolt) } if (mvolt == 0) - return axp221_clrbits(AXP221_OUTPUT_CTRL2, bits); + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2, bits); ret = pmic_bus_write(addr, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL2, bits); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL2, bits); } int axp221_init(void) diff --git a/include/axp221.h b/include/axp221.h index e826ca8..f62f708 100644 --- a/include/axp221.h +++ b/include/axp221.h @@ -8,13 +8,6 @@ struct udevice; -#define AXP221_CHIP_ADDR 0x68 -#define AXP221_CTRL_ADDR 0x3e -#define AXP221_INIT_DATA 0x3e - -#define AXP223_DEVICE_ADDR 0x3a3 -#define AXP223_RUNTIME_ADDR 0x2d - /* Page 0 addresses */ #define AXP221_POWER_STATUS 0x00 #define AXP221_POWER_STATUS_VBUS_AVAIL (1 << 5) -- cgit v1.1