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[src/trunk]: src/sys/dev/i2c Add FDT support
details: https://anonhg.NetBSD.org/src/rev/50425805d2d4
branches: trunk
changeset: 460544:50425805d2d4
user: jmcneill <jmcneill%NetBSD.org@localhost>
date: Sun Oct 27 20:11:13 2019 +0000
description:
Add FDT support
diffstat:
sys/dev/i2c/files.i2c | 6 +-
sys/dev/i2c/tps65217pmic.c | 211 +++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 206 insertions(+), 11 deletions(-)
diffs (truncated from 358 to 300 lines):
diff -r 66fbe8b80071 -r 50425805d2d4 sys/dev/i2c/files.i2c
--- a/sys/dev/i2c/files.i2c Sun Oct 27 19:11:24 2019 +0000
+++ b/sys/dev/i2c/files.i2c Sun Oct 27 20:11:13 2019 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files.i2c,v 1.100 2019/07/24 05:25:32 thorpej Exp $
+# $NetBSD: files.i2c,v 1.101 2019/10/27 20:11:13 jmcneill Exp $
obsolete defflag opt_i2cbus.h I2C_SCAN
define i2cbus { }
@@ -202,8 +202,10 @@
file dev/i2c/tps65950.c tps65950pm
# TI TPS65217
-device tps65217pmic: sysmon_envsys
+device tps65217pmic { }: sysmon_envsys
+device tps65217reg: tps65217pmic
attach tps65217pmic at iic
+attach tps65217reg at tps65217pmic
file dev/i2c/tps65217pmic.c tps65217pmic needs-flag
# Microchip MCP980x
diff -r 66fbe8b80071 -r 50425805d2d4 sys/dev/i2c/tps65217pmic.c
--- a/sys/dev/i2c/tps65217pmic.c Sun Oct 27 19:11:24 2019 +0000
+++ b/sys/dev/i2c/tps65217pmic.c Sun Oct 27 20:11:13 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: tps65217pmic.c,v 1.12 2018/06/16 21:22:13 thorpej Exp $ */
+/* $NetBSD: tps65217pmic.c,v 1.13 2019/10/27 20:11:13 jmcneill Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -34,8 +34,10 @@
* TODO: battery, sequencer, pgood
*/
+#include "opt_fdt.h"
+
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tps65217pmic.c,v 1.12 2018/06/16 21:22:13 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tps65217pmic.c,v 1.13 2019/10/27 20:11:13 jmcneill Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -51,16 +53,23 @@
#include <dev/i2c/tps65217pmicreg.h>
#include <dev/i2c/tps65217pmicvar.h>
+#ifdef FDT
+#include <dev/fdt/fdtvar.h>
+#endif
+
#define NTPS_REG 7
#define SNUM_REGS NTPS_REG-1
#define SNUM_USBSTATUS NTPS_REG
#define SNUM_ACSTATUS NTPS_REG+1
+struct tps_reg_param;
+
struct tps65217pmic_softc {
device_t sc_dev;
i2c_tag_t sc_tag;
i2c_addr_t sc_addr;
+ int sc_phandle;
uint8_t sc_version;
uint8_t sc_revision;
@@ -83,6 +92,17 @@
struct sysmon_pswitch sc_smpsw;
};
+struct tps65217reg_softc {
+ device_t sc_dev;
+ int sc_phandle;
+ struct tps_reg_param *sc_param;
+};
+
+struct tps65217reg_attach_args {
+ struct tps_reg_param *reg_param;
+ int reg_phandle;
+};
+
/* Voltage regulators */
enum tps_reg_num {
TPS65217PMIC_LDO1,
@@ -159,6 +179,10 @@
CFATTACH_DECL_NEW(tps65217pmic, sizeof (struct tps65217pmic_softc),
tps65217pmic_match, tps65217pmic_attach, NULL, NULL);
+#ifdef FDT
+static void tps65217pmic_regulator_attach(struct tps65217pmic_softc *);
+#endif
+
/* Possible settings of LDO1 in mV. */
static const uint16_t ldo1voltages[] = { 1000, 1100, 1200, 1250, 1300, 1350,
1400, 1500, 1600, 1800, 2500, 2750, 2800, 3000, 3100, 3300 };
@@ -177,7 +201,7 @@
static struct tps_reg_param tps_regulators[] = {
{
- .name = "LDO1",
+ .name = "ldo1",
.voltage_min = 1000,
.voltage_max = 3300,
.voltages = ldo1voltages,
@@ -190,7 +214,7 @@
.enable_bit = TPS65217PMIC_ENABLE_LDO1
},
{
- .name = "LDO2",
+ .name = "ldo2",
.voltage_min = 900,
.voltage_max = 3300,
.voltages = ldo2voltages,
@@ -203,7 +227,7 @@
.enable_bit = TPS65217PMIC_ENABLE_LDO2
},
{
- .name = "LDO3",
+ .name = "ldo3",
.voltage_min = 1500,
.voltage_max = 3300,
.voltages = ldo3voltages,
@@ -216,7 +240,7 @@
.enable_bit = TPS65217PMIC_ENABLE_LDO3
},
{
- .name = "LDO4",
+ .name = "ldo4",
.voltage_min = 1500,
.voltage_max = 3300,
.voltages = ldo3voltages,
@@ -229,7 +253,7 @@
.enable_bit = TPS65217PMIC_ENABLE_LDO4
},
{
- .name = "DCDC1",
+ .name = "dcdc1",
.voltage_min = 900,
.voltage_max = 3300,
.voltages = ldo2voltages,
@@ -242,7 +266,7 @@
.enable_bit = TPS65217PMIC_ENABLE_DCDC1
},
{
- .name = "DCDC2",
+ .name = "dcdc2",
.voltage_min = 900,
.voltage_max = 3300,
.voltages = ldo2voltages,
@@ -255,7 +279,7 @@
.enable_bit = TPS65217PMIC_ENABLE_DCDC2
},
{
- .name = "DCDC3",
+ .name = "dcdc3",
.voltage_min = 900,
.voltage_max = 3300,
.voltages = ldo2voltages,
@@ -271,10 +295,19 @@
static bool matched = false;
+static const struct device_compatible_entry compat_data[] = {
+ { "ti,tps65217", 0 },
+ { NULL }
+};
+
static int
tps65217pmic_match(device_t parent, cfdata_t cf, void *aux)
{
struct i2c_attach_args *ia = aux;
+ int match_result;
+
+ if (iic_use_direct_match(ia, cf, compat_data, &match_result))
+ return match_result;
if (ia->ia_addr == TPS65217PMIC_ADDR) {
/* we can only have one */
@@ -299,6 +332,7 @@
sc->sc_dev = self;
sc->sc_addr = ia->ia_addr;
+ sc->sc_phandle = ia->ia_cookie;
sc->sc_tag = ia->ia_tag;
dict = device_properties(self);
@@ -349,6 +383,10 @@
tps65217pmic_wled_init(sc, isel, fdim, brightness);
tps65217pmic_envsys_register(sc);
+
+#ifdef FDT
+ tps65217pmic_regulator_attach(sc);
+#endif
}
static void
@@ -835,5 +873,160 @@
while (val & TPS65217PMIC_DEFSLEW_GO) {
val = tps65217pmic_reg_read(sc, TPS65217PMIC_DEFSLEW);
}
+
+ regulator->current_voltage = regulator->voltages[i];
+
+ return 0;
+}
+
+#ifdef FDT
+static struct tps_reg_param *
+tps65217pmic_get_params(const char *name)
+{
+ int i;
+
+ for (i = 0; i < __arraycount(tps_regulators); i++) {
+ if (strcmp(name, tps_regulators[i].name) == 0)
+ return &tps_regulators[i];
+ }
+
+ return NULL;
+}
+
+static void
+tps65217pmic_regulator_attach(struct tps65217pmic_softc *sc)
+{
+ struct tps65217reg_attach_args raa;
+ struct tps_reg_param *param;
+ const char *compat_name;
+ int phandle, child;
+
+ phandle = of_find_firstchild_byname(sc->sc_phandle, "regulators");
+ if (phandle <= 0)
+ return;
+
+ for (child = OF_child(phandle); child; child = OF_peer(child)) {
+ compat_name = fdtbus_get_string(child, "regulator-compatible");
+ if (compat_name == NULL)
+ continue;
+ param = tps65217pmic_get_params(compat_name);
+ if (param == NULL)
+ continue;
+
+ raa.reg_param = param;
+ raa.reg_phandle = child;
+ config_found(sc->sc_dev, &raa, NULL);
+ }
+}
+
+static int
+tps65217reg_acquire(device_t dev)
+{
return 0;
}
+
+static void
+tps65217reg_release(device_t dev)
+{
+}
+
+static int
+tps65217reg_enable(device_t dev, bool enable)
+{
+ struct tps65217reg_softc *sc = device_private(dev);
+ struct tps65217pmic_softc *pmic_sc = device_private(device_parent(dev));
+ struct tps_reg_param *regulator = sc->sc_param;
+ uint8_t val;
+ int error;
+
+ error = iic_acquire_bus(pmic_sc->sc_tag, I2C_F_POLL);
+ if (error != 0)
+ return error;
+
+ val = tps65217pmic_reg_read(pmic_sc, TPS65217PMIC_ENABLE);
+ if (enable)
+ val |= regulator->enable_bit;
+ else
+ val &= ~regulator->enable_bit;
+ tps65217pmic_reg_write(pmic_sc, TPS65217PMIC_ENABLE, val);
+
+ regulator->is_enabled = enable;
+
+ iic_release_bus(pmic_sc->sc_tag, I2C_F_POLL);
+
+ return 0;
+}
+
+static int
+tps65217reg_set_voltage(device_t dev, u_int min_uvol, u_int max_uvol)
+{
+ struct tps65217reg_softc *sc = device_private(dev);
+ struct tps65217pmic_softc *pmic_sc = device_private(device_parent(dev));
+ struct tps_reg_param *regulator = sc->sc_param;
+ int error;
+
+ error = iic_acquire_bus(pmic_sc->sc_tag, I2C_F_POLL);
+ if (error != 0)
+ return error;
+
+ error = tps65217pmic_set_volt(pmic_sc->sc_dev, regulator->name, min_uvol / 1000);
+
+ iic_release_bus(pmic_sc->sc_tag, I2C_F_POLL);
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