[PATCH rtems-libbsd 1/7] gpioregulator: Remove.
Christian Mauderer
christian.mauderer at embedded-brains.de
Fri Jul 17 05:56:14 UTC 2020
There is a bug in the #ifdef regarding FDT so this file hasn't been
compiled. If that bug is solved, the driver doesn't work for some other
reason.
With the FDT-bug the driver hasn't been used by anyone. So just remove
it again.
---
freebsd/sys/dev/gpio/gpioregulator.c | 352 ---------------------------
libbsd.py | 1 -
rtemsbsd/include/bsp/nexus-devices.h | 1 -
3 files changed, 354 deletions(-)
delete mode 100644 freebsd/sys/dev/gpio/gpioregulator.c
diff --git a/freebsd/sys/dev/gpio/gpioregulator.c b/freebsd/sys/dev/gpio/gpioregulator.c
deleted file mode 100644
index 8ca35bfe..00000000
--- a/freebsd/sys/dev/gpio/gpioregulator.c
+++ /dev/null
@@ -1,352 +0,0 @@
-#include <machine/rtems-bsd-kernel-space.h>
-
-/*-
- * Copyright (c) 2016 Jared McNeill <jmcneill at invisible.ca>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-/*
- * GPIO controlled regulators
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/bus.h>
-#include <sys/rman.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-#include <sys/gpio.h>
-
-#if !defined(__rtems__) || defined(FDT)
-#include <dev/ofw/ofw_bus.h>
-#include <dev/ofw/ofw_bus_subr.h>
-
-#include <dev/gpio/gpiobusvar.h>
-
-#include <dev/extres/regulator/regulator.h>
-
-#include <rtems/bsd/local/regdev_if.h>
-
-struct gpioregulator_state {
- int val;
- uint32_t mask;
-};
-
-struct gpioregulator_init_def {
- struct regnode_init_def reg_init_def;
- struct gpiobus_pin *enable_pin;
- int enable_pin_valid;
- int startup_delay_us;
- int nstates;
- struct gpioregulator_state *states;
- int npins;
- struct gpiobus_pin **pins;
-};
-
-struct gpioregulator_reg_sc {
- struct regnode *regnode;
- device_t base_dev;
- struct regnode_std_param *param;
- struct gpioregulator_init_def *def;
-};
-
-struct gpioregulator_softc {
- device_t dev;
- struct gpioregulator_reg_sc *reg_sc;
- struct gpioregulator_init_def init_def;
-};
-
-static int
-gpioregulator_regnode_init(struct regnode *regnode)
-{
- struct gpioregulator_reg_sc *sc;
- int error, n;
-
- sc = regnode_get_softc(regnode);
-
- if (sc->def->enable_pin_valid == 1) {
- error = gpio_pin_setflags(sc->def->enable_pin, GPIO_PIN_OUTPUT);
- if (error != 0)
- return (error);
- }
-
- for (n = 0; n < sc->def->npins; n++) {
- error = gpio_pin_setflags(sc->def->pins[n], GPIO_PIN_OUTPUT);
- if (error != 0)
- return (error);
- }
-
- return (0);
-}
-
-static int
-gpioregulator_regnode_enable(struct regnode *regnode, bool enable, int *udelay)
-{
- struct gpioregulator_reg_sc *sc;
- bool active;
- int error;
-
- sc = regnode_get_softc(regnode);
-
- if (sc->def->enable_pin_valid == 1) {
- active = enable;
- if (!sc->param->enable_active_high)
- active = !active;
- error = gpio_pin_set_active(sc->def->enable_pin, active);
- if (error != 0)
- return (error);
- }
-
- *udelay = sc->def->startup_delay_us;
-
- return (0);
-}
-
-static int
-gpioregulator_regnode_set_voltage(struct regnode *regnode, int min_uvolt,
- int max_uvolt, int *udelay)
-{
- struct gpioregulator_reg_sc *sc;
- const struct gpioregulator_state *state;
- int error, n;
-
- sc = regnode_get_softc(regnode);
- state = NULL;
-
- for (n = 0; n < sc->def->nstates; n++) {
- if (sc->def->states[n].val >= min_uvolt &&
- sc->def->states[n].val <= max_uvolt) {
- state = &sc->def->states[n];
- break;
- }
- }
- if (state == NULL)
- return (EINVAL);
-
- for (n = 0; n < sc->def->npins; n++) {
- error = gpio_pin_set_active(sc->def->pins[n],
- (state->mask >> n) & 1);
- if (error != 0)
- return (error);
- }
-
- *udelay = sc->def->startup_delay_us;
-
- return (0);
-}
-
-static int
-gpioregulator_regnode_get_voltage(struct regnode *regnode, int *uvolt)
-{
- struct gpioregulator_reg_sc *sc;
- uint32_t mask;
- int error, n;
- bool active;
-
- sc = regnode_get_softc(regnode);
- mask = 0;
-
- for (n = 0; n < sc->def->npins; n++) {
- error = gpio_pin_is_active(sc->def->pins[n], &active);
- if (error != 0)
- return (error);
- mask |= (active << n);
- }
-
- for (n = 0; n < sc->def->nstates; n++) {
- if (sc->def->states[n].mask == mask) {
- *uvolt = sc->def->states[n].val;
- return (0);
- }
- }
-
- return (EIO);
-}
-
-static regnode_method_t gpioregulator_regnode_methods[] = {
- /* Regulator interface */
- REGNODEMETHOD(regnode_init, gpioregulator_regnode_init),
- REGNODEMETHOD(regnode_enable, gpioregulator_regnode_enable),
- REGNODEMETHOD(regnode_set_voltage, gpioregulator_regnode_set_voltage),
- REGNODEMETHOD(regnode_get_voltage, gpioregulator_regnode_get_voltage),
- REGNODEMETHOD_END
-};
-DEFINE_CLASS_1(gpioregulator_regnode, gpioregulator_regnode_class,
- gpioregulator_regnode_methods, sizeof(struct gpioregulator_reg_sc),
- regnode_class);
-
-static int
-gpioregulator_parse_fdt(struct gpioregulator_softc *sc)
-{
- uint32_t *pstates, mask;
- phandle_t node;
- ssize_t len;
- int error, n;
-
- node = ofw_bus_get_node(sc->dev);
- pstates = NULL;
- mask = 0;
-
- error = regulator_parse_ofw_stdparam(sc->dev, node,
- &sc->init_def.reg_init_def);
- if (error != 0)
- return (error);
-
- /* "states" property (required) */
- len = OF_getencprop_alloc_multi(node, "states", sizeof(*pstates),
- (void **)&pstates);
- if (len < 2) {
- device_printf(sc->dev, "invalid 'states' property\n");
- error = EINVAL;
- goto done;
- }
- sc->init_def.nstates = len / 2;
- sc->init_def.states = malloc(sc->init_def.nstates *
- sizeof(*sc->init_def.states), M_DEVBUF, M_WAITOK);
- for (n = 0; n < sc->init_def.nstates; n++) {
- sc->init_def.states[n].val = pstates[n * 2 + 0];
- sc->init_def.states[n].mask = pstates[n * 2 + 1];
- mask |= sc->init_def.states[n].mask;
- }
-
- /* "startup-delay-us" property (optional) */
- len = OF_getencprop(node, "startup-delay-us",
- &sc->init_def.startup_delay_us,
- sizeof(sc->init_def.startup_delay_us));
- if (len <= 0)
- sc->init_def.startup_delay_us = 0;
-
- /* "enable-gpio" property (optional) */
- error = gpio_pin_get_by_ofw_property(sc->dev, node, "enable-gpio",
- &sc->init_def.enable_pin);
- if (error == 0)
- sc->init_def.enable_pin_valid = 1;
-
- /* "gpios" property */
- sc->init_def.npins = 32 - __builtin_clz(mask);
- sc->init_def.pins = malloc(sc->init_def.npins *
- sizeof(sc->init_def.pins), M_DEVBUF, M_WAITOK | M_ZERO);
- for (n = 0; n < sc->init_def.npins; n++) {
- error = gpio_pin_get_by_ofw_idx(sc->dev, node, n,
- &sc->init_def.pins[n]);
- if (error != 0) {
- device_printf(sc->dev, "cannot get pin %d\n", n);
- goto done;
- }
- }
-
-done:
- if (error != 0) {
- for (n = 0; n < sc->init_def.npins; n++) {
- if (sc->init_def.pins[n] != NULL)
- gpio_pin_release(sc->init_def.pins[n]);
- }
-
- free(sc->init_def.states, M_DEVBUF);
- free(sc->init_def.pins, M_DEVBUF);
-
- }
- OF_prop_free(pstates);
-
- return (error);
-}
-
-static int
-gpioregulator_probe(device_t dev)
-{
-
- if (!ofw_bus_is_compatible(dev, "regulator-gpio"))
- return (ENXIO);
-
- device_set_desc(dev, "GPIO controlled regulator");
- return (BUS_PROBE_GENERIC);
-}
-
-static int
-gpioregulator_attach(device_t dev)
-{
- struct gpioregulator_softc *sc;
- struct regnode *regnode;
- phandle_t node;
- int error;
-
- sc = device_get_softc(dev);
- sc->dev = dev;
- node = ofw_bus_get_node(dev);
-
- error = gpioregulator_parse_fdt(sc);
- if (error != 0) {
- device_printf(dev, "cannot parse parameters\n");
- return (ENXIO);
- }
- sc->init_def.reg_init_def.id = 1;
- sc->init_def.reg_init_def.ofw_node = node;
-
- regnode = regnode_create(dev, &gpioregulator_regnode_class,
- &sc->init_def.reg_init_def);
- if (regnode == NULL) {
- device_printf(dev, "cannot create regulator\n");
- return (ENXIO);
- }
-
- sc->reg_sc = regnode_get_softc(regnode);
- sc->reg_sc->regnode = regnode;
- sc->reg_sc->base_dev = dev;
- sc->reg_sc->param = regnode_get_stdparam(regnode);
- sc->reg_sc->def = &sc->init_def;
-
- regnode_register(regnode);
-
- return (0);
-}
-
-
-static device_method_t gpioregulator_methods[] = {
- /* Device interface */
- DEVMETHOD(device_probe, gpioregulator_probe),
- DEVMETHOD(device_attach, gpioregulator_attach),
-
- /* Regdev interface */
- DEVMETHOD(regdev_map, regdev_default_ofw_map),
-
- DEVMETHOD_END
-};
-
-static driver_t gpioregulator_driver = {
- "gpioregulator",
- gpioregulator_methods,
- sizeof(struct gpioregulator_softc),
-};
-
-static devclass_t gpioregulator_devclass;
-
-EARLY_DRIVER_MODULE(gpioregulator, simplebus, gpioregulator_driver,
- gpioregulator_devclass, 0, 0, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LAST);
-MODULE_VERSION(gpioregulator, 1);
-#endif /* !__rtems__ || FDT */
diff --git a/libbsd.py b/libbsd.py
index 812674a6..aa940ab2 100644
--- a/libbsd.py
+++ b/libbsd.py
@@ -5232,7 +5232,6 @@ class regulator(builder.Module):
'sys/dev/extres/regulator/regulator.c',
'sys/dev/extres/regulator/regulator_bus.c',
'sys/dev/extres/regulator/regulator_fixed.c',
- 'sys/dev/gpio/gpioregulator.c',
],
mm.generator['source']()
)
diff --git a/rtemsbsd/include/bsp/nexus-devices.h b/rtemsbsd/include/bsp/nexus-devices.h
index f27d7a7e..89f78edf 100644
--- a/rtemsbsd/include/bsp/nexus-devices.h
+++ b/rtemsbsd/include/bsp/nexus-devices.h
@@ -151,7 +151,6 @@ SYSINIT_DRIVER_REFERENCE(sdhci_fsl, simplebus);
RTEMS_BSD_DRIVER_MMC;
SYSINIT_DRIVER_REFERENCE(ofw_regulator_bus, simplebus);
-SYSINIT_DRIVER_REFERENCE(gpioregulator, simplebus);
#elif defined(LIBBSP_ARM_LPC24XX_BSP_H)
--
2.26.2
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