diff options
Diffstat (limited to 'drivers/macintosh/windfarm_smu_sat.c')
| -rw-r--r-- | drivers/macintosh/windfarm_smu_sat.c | 63 |
1 files changed, 27 insertions, 36 deletions
diff --git a/drivers/macintosh/windfarm_smu_sat.c b/drivers/macintosh/windfarm_smu_sat.c index ad6223e88340..ff8805ecf2e5 100644 --- a/drivers/macintosh/windfarm_smu_sat.c +++ b/drivers/macintosh/windfarm_smu_sat.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Windfarm PowerMac thermal control. SMU "satellite" controller sensors. * * Copyright (C) 2005 Paul Mackerras, IBM Corp. <paulus@samba.org> - * - * Released under the terms of the GNU GPL v2. */ #include <linux/types.h> @@ -14,7 +13,7 @@ #include <linux/wait.h> #include <linux/i2c.h> #include <linux/mutex.h> -#include <asm/prom.h> + #include <asm/smu.h> #include <asm/pmac_low_i2c.h> @@ -22,14 +21,6 @@ #define VERSION "1.0" -#define DEBUG - -#ifdef DEBUG -#define DBG(args...) printk(args) -#else -#define DBG(args...) do { } while(0) -#endif - /* If the cache is older than 800ms we'll refetch it */ #define MAX_AGE msecs_to_jiffies(800) @@ -106,13 +97,10 @@ struct smu_sdbp_header *smu_sat_get_sdb_partition(unsigned int sat_id, int id, buf[i+2] = data[3]; buf[i+3] = data[2]; } -#ifdef DEBUG - DBG(KERN_DEBUG "sat %d partition %x:", sat_id, id); - for (i = 0; i < len; ++i) - DBG(" %x", buf[i]); - DBG("\n"); -#endif + printk(KERN_DEBUG "sat %d partition %x:", sat_id, id); + print_hex_dump(KERN_DEBUG, " ", DUMP_PREFIX_OFFSET, + 16, 1, buf, len, false); if (size) *size = len; return (struct smu_sdbp_header *) buf; @@ -132,13 +120,13 @@ static int wf_sat_read_cache(struct wf_sat *sat) if (err < 0) return err; sat->last_read = jiffies; + #ifdef LOTSA_DEBUG { int i; - DBG(KERN_DEBUG "wf_sat_get: data is"); - for (i = 0; i < 16; ++i) - DBG(" %.2x", sat->cache[i]); - DBG("\n"); + printk(KERN_DEBUG "wf_sat_get: data is"); + print_hex_dump(KERN_DEBUG, " ", DUMP_PREFIX_OFFSET, + 16, 1, sat->cache, 16, false); } #endif return 0; @@ -183,6 +171,7 @@ static void wf_sat_release(struct kref *ref) if (sat->nr >= 0) sats[sat->nr] = NULL; + of_node_put(sat->node); kfree(sat); } @@ -195,20 +184,19 @@ static void wf_sat_sensor_release(struct wf_sensor *sr) kref_put(&sat->ref, wf_sat_release); } -static struct wf_sensor_ops wf_sat_ops = { +static const struct wf_sensor_ops wf_sat_ops = { .get_value = wf_sat_sensor_get, .release = wf_sat_sensor_release, .owner = THIS_MODULE, }; -static int wf_sat_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int wf_sat_probe(struct i2c_client *client) { struct device_node *dev = client->dev.of_node; struct wf_sat *sat; struct wf_sat_sensor *sens; const u32 *reg; - const char *loc, *type; + const char *loc; u8 chip, core; struct device_node *child; int shift, cpu, index; @@ -228,10 +216,8 @@ static int wf_sat_probe(struct i2c_client *client, vsens[0] = vsens[1] = -1; isens[0] = isens[1] = -1; - child = NULL; - while ((child = of_get_next_child(dev, child)) != NULL) { + for_each_child_of_node(dev, child) { reg = of_get_property(child, "reg", NULL); - type = of_get_property(child, "device_type", NULL); loc = of_get_property(child, "location", NULL); if (reg == NULL || loc == NULL) continue; @@ -248,7 +234,7 @@ static int wf_sat_probe(struct i2c_client *client, core = loc[5] - '0'; if (chip > 1 || core > 1) { printk(KERN_ERR "wf_sat_create: don't understand " - "location %s for %s\n", loc, child->full_name); + "location %s for %pOF\n", loc, child); continue; } cpu = 2 * chip + core; @@ -260,15 +246,15 @@ static int wf_sat_probe(struct i2c_client *client, continue; } - if (strcmp(type, "voltage-sensor") == 0) { + if (of_node_is_type(child, "voltage-sensor")) { name = "cpu-voltage"; shift = 4; vsens[core] = index; - } else if (strcmp(type, "current-sensor") == 0) { + } else if (of_node_is_type(child, "current-sensor")) { name = "cpu-current"; shift = 8; isens[core] = index; - } else if (strcmp(type, "temp-sensor") == 0) { + } else if (of_node_is_type(child, "temp-sensor")) { name = "cpu-temp"; shift = 10; } else @@ -330,7 +316,7 @@ static int wf_sat_probe(struct i2c_client *client, return 0; } -static int wf_sat_remove(struct i2c_client *client) +static void wf_sat_remove(struct i2c_client *client) { struct wf_sat *sat = i2c_get_clientdata(client); struct wf_sat_sensor *sens; @@ -344,19 +330,24 @@ static int wf_sat_remove(struct i2c_client *client) } sat->i2c = NULL; kref_put(&sat->ref, wf_sat_release); - - return 0; } static const struct i2c_device_id wf_sat_id[] = { - { "MAC,smu-sat", 0 }, + { "MAC,smu-sat" }, { } }; MODULE_DEVICE_TABLE(i2c, wf_sat_id); +static const struct of_device_id wf_sat_of_id[] = { + { .compatible = "smu-sat", }, + { } +}; +MODULE_DEVICE_TABLE(of, wf_sat_of_id); + static struct i2c_driver wf_sat_driver = { .driver = { .name = "wf_smu_sat", + .of_match_table = wf_sat_of_id, }, .probe = wf_sat_probe, .remove = wf_sat_remove, |