sunxi: Enable AXP221s in I2C mode with the R40 SoC
The R40 SoC uses the AXP221s in I2C mode to supply power.
Some regulator's common usages have changed, and also the recommended
voltage for existing usages have changed. Update the defaults to match.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
diff --git a/arch/arm/mach-sunxi/pmic_bus.c b/arch/arm/mach-sunxi/pmic_bus.c
index 7c57f02..f917c3e 100644
--- a/arch/arm/mach-sunxi/pmic_bus.c
+++ b/arch/arm/mach-sunxi/pmic_bus.c
@@ -41,6 +41,9 @@
p2wi_init();
ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
AXP221_INIT_DATA);
+# elif defined CONFIG_MACH_SUN8I_R40
+ /* Nothing. R40 uses the AXP221s in I2C mode */
+ ret = 0;
# else
ret = rsb_init();
if (ret)
@@ -65,6 +68,8 @@
#elif defined CONFIG_AXP221_POWER || defined CONFIG_AXP809_POWER || defined CONFIG_AXP818_POWER
# ifdef CONFIG_MACH_SUN6I
return p2wi_read(reg, data);
+# elif defined CONFIG_MACH_SUN8I_R40
+ return i2c_read(AXP209_I2C_ADDR, reg, 1, data, 1);
# else
return rsb_read(AXP223_RUNTIME_ADDR, reg, data);
# endif
@@ -80,6 +85,8 @@
#elif defined CONFIG_AXP221_POWER || defined CONFIG_AXP809_POWER || defined CONFIG_AXP818_POWER
# ifdef CONFIG_MACH_SUN6I
return p2wi_write(reg, data);
+# elif defined CONFIG_MACH_SUN8I_R40
+ return i2c_write(AXP209_I2C_ADDR, reg, 1, &data, 1);
# else
return rsb_write(AXP223_RUNTIME_ADDR, reg, data);
# endif