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https://github.com/brain-hackers/u-boot-brain
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sunxi: axp: Add support for i2c based PMICs to the pmic-bus helpers
Add support for the axp152 and axp209 PMICs to the pmic register access helpers. This is a preparation patch for moving the axp gpio code to a separate gpio driver. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
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@ -27,6 +27,8 @@ obj-$(CONFIG_MACH_SUN7I) += clock_sun4i.o
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obj-$(CONFIG_MACH_SUN8I) += clock_sun6i.o
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obj-$(CONFIG_MACH_SUN8I) += clock_sun6i.o
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obj-$(CONFIG_MACH_SUN9I) += clock_sun9i.o
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obj-$(CONFIG_MACH_SUN9I) += clock_sun9i.o
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obj-$(CONFIG_AXP152_POWER) += pmic_bus.o
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obj-$(CONFIG_AXP209_POWER) += pmic_bus.o
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obj-$(CONFIG_AXP221_POWER) += pmic_bus.o
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obj-$(CONFIG_AXP221_POWER) += pmic_bus.o
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ifndef CONFIG_SPL_BUILD
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ifndef CONFIG_SPL_BUILD
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@ -12,8 +12,13 @@
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#include <common.h>
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#include <common.h>
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#include <asm/arch/p2wi.h>
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#include <asm/arch/p2wi.h>
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#include <asm/arch/rsb.h>
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#include <asm/arch/rsb.h>
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#include <i2c.h>
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#include <asm/arch/pmic_bus.h>
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#include <asm/arch/pmic_bus.h>
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#define AXP152_I2C_ADDR 0x30
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#define AXP209_I2C_ADDR 0x34
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#define AXP221_CHIP_ADDR 0x68
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#define AXP221_CHIP_ADDR 0x68
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#define AXP221_CTRL_ADDR 0x3e
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#define AXP221_CTRL_ADDR 0x3e
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#define AXP221_INIT_DATA 0x3e
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#define AXP221_INIT_DATA 0x3e
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@ -25,11 +30,12 @@ int pmic_bus_init(void)
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{
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{
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/* This cannot be 0 because it is used in SPL before BSS is ready */
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/* This cannot be 0 because it is used in SPL before BSS is ready */
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static int needs_init = 1;
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static int needs_init = 1;
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int ret;
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__maybe_unused int ret;
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if (!needs_init)
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if (!needs_init)
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return 0;
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return 0;
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#ifdef CONFIG_AXP221_POWER
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# ifdef CONFIG_MACH_SUN6I
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# ifdef CONFIG_MACH_SUN6I
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p2wi_init();
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p2wi_init();
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ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
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ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
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@ -43,6 +49,7 @@ int pmic_bus_init(void)
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# endif
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# endif
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if (ret)
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if (ret)
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return ret;
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return ret;
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#endif
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needs_init = 0;
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needs_init = 0;
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return 0;
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return 0;
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@ -50,20 +57,32 @@ int pmic_bus_init(void)
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int pmic_bus_read(u8 reg, u8 *data)
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int pmic_bus_read(u8 reg, u8 *data)
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{
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{
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#ifdef CONFIG_AXP152_POWER
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return i2c_read(AXP152_I2C_ADDR, reg, 1, data, 1);
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#elif defined CONFIG_AXP209_POWER
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return i2c_read(AXP209_I2C_ADDR, reg, 1, data, 1);
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#elif defined CONFIG_AXP221_POWER
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# ifdef CONFIG_MACH_SUN6I
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# ifdef CONFIG_MACH_SUN6I
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return p2wi_read(reg, data);
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return p2wi_read(reg, data);
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# else
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# else
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return rsb_read(AXP223_RUNTIME_ADDR, reg, data);
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return rsb_read(AXP223_RUNTIME_ADDR, reg, data);
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# endif
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# endif
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#endif
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}
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}
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int pmic_bus_write(u8 reg, u8 data)
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int pmic_bus_write(u8 reg, u8 data)
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{
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{
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#ifdef CONFIG_AXP152_POWER
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return i2c_write(AXP152_I2C_ADDR, reg, 1, &data, 1);
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#elif defined CONFIG_AXP209_POWER
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return i2c_write(AXP209_I2C_ADDR, reg, 1, &data, 1);
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#elif defined CONFIG_AXP221_POWER
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# ifdef CONFIG_MACH_SUN6I
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# ifdef CONFIG_MACH_SUN6I
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return p2wi_write(reg, data);
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return p2wi_write(reg, data);
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# else
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# else
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return rsb_write(AXP223_RUNTIME_ADDR, reg, data);
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return rsb_write(AXP223_RUNTIME_ADDR, reg, data);
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# endif
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# endif
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#endif
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}
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}
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int pmic_bus_setbits(u8 reg, u8 bits)
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int pmic_bus_setbits(u8 reg, u8 bits)
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