Module Name: src
Committed By: jmcneill
Date: Sun Jan 28 18:21:52 UTC 2018
Modified Files:
src/sys/dev/fdt: fixedregulator.c
Log Message:
Allow set_voltage/get_voltage to succeed on a fixed regulator so long as
the requested range overlaps with the fixed rate defined in the devicetree.
To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/sys/dev/fdt/fixedregulator.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/fdt/fixedregulator.c
diff -u src/sys/dev/fdt/fixedregulator.c:1.5 src/sys/dev/fdt/fixedregulator.c:1.6
--- src/sys/dev/fdt/fixedregulator.c:1.5 Mon Apr 24 10:55:26 2017
+++ src/sys/dev/fdt/fixedregulator.c Sun Jan 28 18:21:52 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: fixedregulator.c,v 1.5 2017/04/24 10:55:26 jmcneill Exp $ */
+/* $NetBSD: fixedregulator.c,v 1.6 2018/01/28 18:21:52 jmcneill Exp $ */
/*-
* Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fixedregulator.c,v 1.5 2017/04/24 10:55:26 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fixedregulator.c,v 1.6 2018/01/28 18:21:52 jmcneill Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -44,11 +44,15 @@ static void fixedregulator_attach(device
static int fixedregulator_acquire(device_t);
static void fixedregulator_release(device_t);
static int fixedregulator_enable(device_t, bool);
+static int fixedregulator_set_voltage(device_t, u_int, u_int);
+static int fixedregulator_get_voltage(device_t, u_int *);
struct fdtbus_regulator_controller_func fixedregulator_funcs = {
.acquire = fixedregulator_acquire,
.release = fixedregulator_release,
- .enable = fixedregulator_enable
+ .enable = fixedregulator_enable,
+ .set_voltage = fixedregulator_set_voltage,
+ .get_voltage = fixedregulator_get_voltage,
};
struct fixedregulator_softc {
@@ -60,6 +64,8 @@ struct fixedregulator_softc {
bool sc_boot_on;
bool sc_enable_val;
uint32_t sc_delay;
+ uint32_t sc_min_uvol;
+ uint32_t sc_max_uvol;
int sc_gpioflags;
bool sc_deferred;
@@ -113,6 +119,8 @@ fixedregulator_attach(device_t parent, d
sc->sc_enable_val = of_getprop_bool(phandle, "enable-active-high");
if (of_getprop_uint32(phandle, "startup-delay-us", &sc->sc_delay) != 0)
sc->sc_delay = 0;
+ of_getprop_uint32(phandle, "regulator-min-microvolt", &sc->sc_min_uvol);
+ of_getprop_uint32(phandle, "regulator-max-microvolt", &sc->sc_max_uvol);
sc->sc_pin = fdtbus_gpio_acquire(phandle, "gpio", sc->sc_gpioflags);
if (sc->sc_pin == NULL)
@@ -166,3 +174,24 @@ fixedregulator_enable(device_t dev, bool
}
return 0;
}
+
+static int
+fixedregulator_set_voltage(device_t dev, u_int min_uvol, u_int max_uvol)
+{
+ struct fixedregulator_softc * const sc = device_private(dev);
+
+ if (sc->sc_min_uvol > max_uvol || sc->sc_max_uvol < min_uvol)
+ return EINVAL;
+
+ return 0;
+}
+
+static int
+fixedregulator_get_voltage(device_t dev, u_int *uvol)
+{
+ struct fixedregulator_softc * const sc = device_private(dev);
+
+ *uvol = sc->sc_min_uvol;
+
+ return 0;
+}
