sunxi: Implement poweroff support for axp818 pmic

Adds poweroff support for axp818 pmic.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 02cb8e7..d137536 100644 (file)
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -44,6 +44,7 @@ config AXP221_POWER
 config AXP818_POWER
        boolean "axp818 pmic support"
        depends on MACH_SUN8I_A83T
+       select CMD_POWEROFF
        ---help---
        Say y here to enable support for the axp818 pmic found on
        A83T dev board.

diff --git a/drivers/power/axp818.c b/drivers/power/axp818.c
index bf6ecd6..af4d7a6 100644 (file)
--- a/drivers/power/axp818.c
+++ b/drivers/power/axp818.c
@@ -255,3 +255,14 @@ int axp_init(void)
 
        return 0;
 }
+
+int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+       pmic_bus_write(AXP818_SHUTDOWN, AXP818_SHUTDOWN_POWEROFF);
+
+       /* infinite loop during shutdown */
+       while (1) {}
+
+       /* not reached */
+       return 0;
+}

diff --git a/include/axp818.h b/include/axp818.h
index f7f343a..959774c 100644 (file)
--- a/include/axp818.h
+++ b/include/axp818.h
@@ -55,6 +55,9 @@
 #define AXP818_ALDO2_CTRL      0x29
 #define AXP818_ALDO3_CTRL      0x2a
 
+#define AXP818_SHUTDOWN                0x32
+#define AXP818_SHUTDOWN_POWEROFF       (1 << 7)
+
 /* For axp_gpio.c */
 #define AXP_POWER_STATUS               0x00
 #define AXP_POWER_STATUS_VBUS_PRESENT          (1 << 5)