Module Name: src
Committed By: jmcneill
Date: Fri Jan 3 01:17:29 UTC 2020
Modified Files:
src/sys/dev/i2c: rkpmic.c
Log Message:
If the rockchip,system-power-controller property is present, try to power off
with the PMIC
To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/sys/dev/i2c/rkpmic.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/i2c/rkpmic.c
diff -u src/sys/dev/i2c/rkpmic.c:1.7 src/sys/dev/i2c/rkpmic.c:1.8
--- src/sys/dev/i2c/rkpmic.c:1.7 Thu Jan 2 17:09:59 2020
+++ src/sys/dev/i2c/rkpmic.c Fri Jan 3 01:17:29 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: rkpmic.c,v 1.7 2020/01/02 17:09:59 thorpej Exp $ */
+/* $NetBSD: rkpmic.c,v 1.8 2020/01/03 01:17:29 jmcneill Exp $ */
/*-
* Copyright (c) 2018 Jared McNeill <[email protected]>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rkpmic.c,v 1.7 2020/01/02 17:09:59 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rkpmic.c,v 1.8 2020/01/03 01:17:29 jmcneill Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -72,6 +72,9 @@ __KERNEL_RCSID(0, "$NetBSD: rkpmic.c,v 1
#define CLK32OUT_REG 0x20
#define CLK32OUT_CLKOUT2_EN __BIT(0)
+#define DEVCTRL_REG 0x4b
+#define DEVCTRL_DEV_OFF_RST __BIT(3)
+
struct rkpmic_ctrl {
const char * name;
uint8_t enable_reg;
@@ -88,6 +91,9 @@ struct rkpmic_config {
const char * name;
const struct rkpmic_ctrl *ctrl;
u_int nctrl;
+
+ u_int poweroff_reg;
+ u_int poweroff_mask;
};
static const struct rkpmic_ctrl rk805_ctrls[] = {
@@ -190,6 +196,8 @@ static const struct rkpmic_config rk808_
.name = "RK808",
.ctrl = rk808_ctrls,
.nctrl = __arraycount(rk808_ctrls),
+ .poweroff_reg = DEVCTRL_REG,
+ .poweroff_mask = DEVCTRL_DEV_OFF_RST,
};
struct rkpmic_softc;
@@ -417,6 +425,25 @@ static const struct clk_funcs rkpmic_clk
.disable = rkpmic_clk_disable,
};
+static void
+rkpmic_power_poweroff(device_t dev)
+{
+ struct rkpmic_softc * const sc = device_private(dev);
+ uint8_t val;
+
+ delay(1000000);
+
+ I2C_LOCK(sc);
+ val = I2C_READ(sc, sc->sc_conf->poweroff_reg);
+ val |= sc->sc_conf->poweroff_mask;
+ I2C_WRITE(sc, sc->sc_conf->poweroff_reg, val);
+ I2C_UNLOCK(sc);
+}
+
+static struct fdtbus_power_controller_func rkpmic_power_funcs = {
+ .poweroff = rkpmic_power_poweroff,
+};
+
static int
rkpmic_match(device_t parent, cfdata_t match, void *aux)
{
@@ -482,6 +509,11 @@ rkpmic_attach(device_t parent, device_t
fdtbus_register_clock_controller(self, sc->sc_phandle,
&rkpmic_clk_fdt_funcs);
+ if (of_hasprop(sc->sc_phandle, "rockchip,system-power-controller") &&
+ sc->sc_conf->poweroff_mask != 0)
+ fdtbus_register_power_controller(self, sc->sc_phandle,
+ &rkpmic_power_funcs);
+
regulators = of_find_firstchild_byname(sc->sc_phandle, "regulators");
if (regulators < 0)
return;
