summaryrefslogtreecommitdiff
path: root/drivers/base
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/memory.c4
-rw-r--r--drivers/base/power/domain.c36
-rw-r--r--drivers/base/power/domain_governor.c3
-rw-r--r--drivers/base/power/wakeirq.c6
-rw-r--r--drivers/base/regmap/regcache-flat.c2
-rw-r--r--drivers/base/regmap/regcache-lzo.c6
-rw-r--r--drivers/base/regmap/regcache-rbtree.c18
-rw-r--r--drivers/base/regmap/regcache.c41
-rw-r--r--drivers/base/regmap/regmap-debugfs.c69
-rw-r--r--drivers/base/regmap/regmap-irq.c113
-rw-r--r--drivers/base/regmap/regmap.c118
11 files changed, 319 insertions, 97 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 2804aed3f416..25425d3f2575 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -303,6 +303,10 @@ static int memory_subsys_offline(struct device *dev)
if (mem->state == MEM_OFFLINE)
return 0;
+ /* Can't offline block with non-present sections */
+ if (mem->section_count != sections_per_block)
+ return -EINVAL;
+
return memory_block_change_state(mem, MEM_OFFLINE, MEM_ONLINE);
}
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index e03b1ad25a90..65f50eccd49b 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -390,6 +390,7 @@ static int pm_genpd_runtime_suspend(struct device *dev)
struct generic_pm_domain *genpd;
bool (*stop_ok)(struct device *__dev);
struct gpd_timing_data *td = &dev_gpd_data(dev)->td;
+ bool runtime_pm = pm_runtime_enabled(dev);
ktime_t time_start;
s64 elapsed_ns;
int ret;
@@ -400,12 +401,19 @@ static int pm_genpd_runtime_suspend(struct device *dev)
if (IS_ERR(genpd))
return -EINVAL;
+ /*
+ * A runtime PM centric subsystem/driver may re-use the runtime PM
+ * callbacks for other purposes than runtime PM. In those scenarios
+ * runtime PM is disabled. Under these circumstances, we shall skip
+ * validating/measuring the PM QoS latency.
+ */
stop_ok = genpd->gov ? genpd->gov->stop_ok : NULL;
- if (stop_ok && !stop_ok(dev))
+ if (runtime_pm && stop_ok && !stop_ok(dev))
return -EBUSY;
/* Measure suspend latency. */
- time_start = ktime_get();
+ if (runtime_pm)
+ time_start = ktime_get();
ret = genpd_save_dev(genpd, dev);
if (ret)
@@ -418,13 +426,15 @@ static int pm_genpd_runtime_suspend(struct device *dev)
}
/* Update suspend latency value if the measured time exceeds it. */
- elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start));
- if (elapsed_ns > td->suspend_latency_ns) {
- td->suspend_latency_ns = elapsed_ns;
- dev_dbg(dev, "suspend latency exceeded, %lld ns\n",
- elapsed_ns);
- genpd->max_off_time_changed = true;
- td->constraint_changed = true;
+ if (runtime_pm) {
+ elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start));
+ if (elapsed_ns > td->suspend_latency_ns) {
+ td->suspend_latency_ns = elapsed_ns;
+ dev_dbg(dev, "suspend latency exceeded, %lld ns\n",
+ elapsed_ns);
+ genpd->max_off_time_changed = true;
+ td->constraint_changed = true;
+ }
}
/*
@@ -453,6 +463,7 @@ static int pm_genpd_runtime_resume(struct device *dev)
{
struct generic_pm_domain *genpd;
struct gpd_timing_data *td = &dev_gpd_data(dev)->td;
+ bool runtime_pm = pm_runtime_enabled(dev);
ktime_t time_start;
s64 elapsed_ns;
int ret;
@@ -479,14 +490,14 @@ static int pm_genpd_runtime_resume(struct device *dev)
out:
/* Measure resume latency. */
- if (timed)
+ if (timed && runtime_pm)
time_start = ktime_get();
genpd_start_dev(genpd, dev);
genpd_restore_dev(genpd, dev);
/* Update resume latency value if the measured time exceeds it. */
- if (timed) {
+ if (timed && runtime_pm) {
elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start));
if (elapsed_ns > td->resume_latency_ns) {
td->resume_latency_ns = elapsed_ns;
@@ -1775,10 +1786,10 @@ int genpd_dev_pm_attach(struct device *dev)
}
pd = of_genpd_get_from_provider(&pd_args);
+ of_node_put(pd_args.np);
if (IS_ERR(pd)) {
dev_dbg(dev, "%s() failed to find PM domain: %ld\n",
__func__, PTR_ERR(pd));
- of_node_put(dev->of_node);
return -EPROBE_DEFER;
}
@@ -1796,7 +1807,6 @@ int genpd_dev_pm_attach(struct device *dev)
if (ret < 0) {
dev_err(dev, "failed to add to PM domain %s: %d",
pd->name, ret);
- of_node_put(dev->of_node);
goto out;
}
diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c
index e60dd12e23aa..1e937ac5f456 100644
--- a/drivers/base/power/domain_governor.c
+++ b/drivers/base/power/domain_governor.c
@@ -160,9 +160,6 @@ static bool default_power_down_ok(struct dev_pm_domain *pd)
struct gpd_timing_data *td;
s64 constraint_ns;
- if (!pdd->dev->driver)
- continue;
-
/*
* Check if the device is allowed to be off long enough for the
* domain to turn off and on (that's how much time it will
diff --git a/drivers/base/power/wakeirq.c b/drivers/base/power/wakeirq.c
index eb6e67451dec..0d77cd6fd8d1 100644
--- a/drivers/base/power/wakeirq.c
+++ b/drivers/base/power/wakeirq.c
@@ -68,6 +68,9 @@ int dev_pm_set_wake_irq(struct device *dev, int irq)
struct wake_irq *wirq;
int err;
+ if (irq < 0)
+ return -EINVAL;
+
wirq = kzalloc(sizeof(*wirq), GFP_KERNEL);
if (!wirq)
return -ENOMEM;
@@ -167,6 +170,9 @@ int dev_pm_set_dedicated_wake_irq(struct device *dev, int irq)
struct wake_irq *wirq;
int err;
+ if (irq < 0)
+ return -EINVAL;
+
wirq = kzalloc(sizeof(*wirq), GFP_KERNEL);
if (!wirq)
return -ENOMEM;
diff --git a/drivers/base/regmap/regcache-flat.c b/drivers/base/regmap/regcache-flat.c
index 0246f44ded74..686c9e0b930e 100644
--- a/drivers/base/regmap/regcache-flat.c
+++ b/drivers/base/regmap/regcache-flat.c
@@ -21,7 +21,7 @@ static int regcache_flat_init(struct regmap *map)
int i;
unsigned int *cache;
- map->cache = kzalloc(sizeof(unsigned int) * (map->max_register + 1),
+ map->cache = kcalloc(map->max_register + 1, sizeof(unsigned int),
GFP_KERNEL);
if (!map->cache)
return -ENOMEM;
diff --git a/drivers/base/regmap/regcache-lzo.c b/drivers/base/regmap/regcache-lzo.c
index 736e0d378567..6f77d7319fc6 100644
--- a/drivers/base/regmap/regcache-lzo.c
+++ b/drivers/base/regmap/regcache-lzo.c
@@ -139,7 +139,7 @@ static int regcache_lzo_init(struct regmap *map)
ret = 0;
blkcount = regcache_lzo_block_count(map);
- map->cache = kzalloc(blkcount * sizeof *lzo_blocks,
+ map->cache = kcalloc(blkcount, sizeof(*lzo_blocks),
GFP_KERNEL);
if (!map->cache)
return -ENOMEM;
@@ -152,8 +152,8 @@ static int regcache_lzo_init(struct regmap *map)
* that register.
*/
bmp_size = map->num_reg_defaults_raw;
- sync_bmp = kmalloc(BITS_TO_LONGS(bmp_size) * sizeof(long),
- GFP_KERNEL);
+ sync_bmp = kmalloc_array(BITS_TO_LONGS(bmp_size), sizeof(long),
+ GFP_KERNEL);
if (!sync_bmp) {
ret = -ENOMEM;
goto err;
diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c
index 56486d92c4e7..aa56af87d941 100644
--- a/drivers/base/regmap/regcache-rbtree.c
+++ b/drivers/base/regmap/regcache-rbtree.c
@@ -361,13 +361,14 @@ regcache_rbtree_node_alloc(struct regmap *map, unsigned int reg)
rbnode->base_reg = reg;
}
- rbnode->block = kmalloc(rbnode->blklen * map->cache_word_size,
- GFP_KERNEL);
+ rbnode->block = kmalloc_array(rbnode->blklen, map->cache_word_size,
+ GFP_KERNEL);
if (!rbnode->block)
goto err_free;
- rbnode->cache_present = kzalloc(BITS_TO_LONGS(rbnode->blklen) *
- sizeof(*rbnode->cache_present), GFP_KERNEL);
+ rbnode->cache_present = kcalloc(BITS_TO_LONGS(rbnode->blklen),
+ sizeof(*rbnode->cache_present),
+ GFP_KERNEL);
if (!rbnode->cache_present)
goto err_free_block;
@@ -413,8 +414,8 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg,
max = reg + max_dist;
/* look for an adjacent register to the one we are about to add */
- for (node = rb_first(&rbtree_ctx->root); node;
- node = rb_next(node)) {
+ node = rbtree_ctx->root.rb_node;
+ while (node) {
rbnode_tmp = rb_entry(node, struct regcache_rbtree_node,
node);
@@ -425,6 +426,11 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg,
new_base_reg = min(reg, base_reg);
new_top_reg = max(reg, top_reg);
} else {
+ if (max < base_reg)
+ node = node->rb_left;
+ else
+ node = node->rb_right;
+
continue;
}
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index 4c07802986b2..348be3a35410 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -100,15 +100,25 @@ int regcache_init(struct regmap *map, const struct regmap_config *config)
int i;
void *tmp_buf;
- for (i = 0; i < config->num_reg_defaults; i++)
- if (config->reg_defaults[i].reg % map->reg_stride)
- return -EINVAL;
-
if (map->cache_type == REGCACHE_NONE) {
+ if (config->reg_defaults || config->num_reg_defaults_raw)
+ dev_warn(map->dev,
+ "No cache used with register defaults set!\n");
+
map->cache_bypass = true;
return 0;
}
+ if (config->reg_defaults && !config->num_reg_defaults) {
+ dev_err(map->dev,
+ "Register defaults are set without the number!\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < config->num_reg_defaults; i++)
+ if (config->reg_defaults[i].reg % map->reg_stride)
+ return -EINVAL;
+
for (i = 0; i < ARRAY_SIZE(cache_types); i++)
if (cache_types[i]->type == map->cache_type)
break;
@@ -138,8 +148,6 @@ int regcache_init(struct regmap *map, const struct regmap_config *config)
* a copy of it.
*/
if (config->reg_defaults) {
- if (!map->num_reg_defaults)
- return -EINVAL;
tmp_buf = kmemdup(config->reg_defaults, map->num_reg_defaults *
sizeof(struct reg_default), GFP_KERNEL);
if (!tmp_buf)
@@ -535,19 +543,30 @@ bool regcache_set_val(struct regmap *map, void *base, unsigned int idx,
switch (map->cache_word_size) {
case 1: {
u8 *cache = base;
+
cache[idx] = val;
break;
}
case 2: {
u16 *cache = base;
+
cache[idx] = val;
break;
}
case 4: {
u32 *cache = base;
+
+ cache[idx] = val;
+ break;
+ }
+#ifdef CONFIG_64BIT
+ case 8: {
+ u64 *cache = base;
+
cache[idx] = val;
break;
}
+#endif
default:
BUG();
}
@@ -568,16 +587,26 @@ unsigned int regcache_get_val(struct regmap *map, const void *base,
switch (map->cache_word_size) {
case 1: {
const u8 *cache = base;
+
return cache[idx];
}
case 2: {
const u16 *cache = base;
+
return cache[idx];
}
case 4: {
const u32 *cache = base;
+
+ return cache[idx];
+ }
+#ifdef CONFIG_64BIT
+ case 8: {
+ const u64 *cache = base;
+
return cache[idx];
}
+#endif
default:
BUG();
}
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 3f0a7e262d69..1ee3d40861c7 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -397,72 +397,39 @@ static const struct file_operations regmap_reg_ranges_fops = {
.llseek = default_llseek,
};
-static ssize_t regmap_access_read_file(struct file *file,
- char __user *user_buf, size_t count,
- loff_t *ppos)
+static int regmap_access_show(struct seq_file *s, void *ignored)
{
- int reg_len, tot_len;
- size_t buf_pos = 0;
- loff_t p = 0;
- ssize_t ret;
- int i;
- struct regmap *map = file->private_data;
- char *buf;
-
- if (*ppos < 0 || !count)
- return -EINVAL;
+ struct regmap *map = s->private;
+ int i, reg_len;
- buf = kmalloc(count, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- /* Calculate the length of a fixed format */
reg_len = regmap_calc_reg_len(map->max_register);
- tot_len = reg_len + 10; /* ': R W V P\n' */
for (i = 0; i <= map->max_register; i += map->reg_stride) {
/* Ignore registers which are neither readable nor writable */
if (!regmap_readable(map, i) && !regmap_writeable(map, i))
continue;
- /* If we're in the region the user is trying to read */
- if (p >= *ppos) {
- /* ...but not beyond it */
- if (buf_pos + tot_len + 1 >= count)
- break;
-
- /* Format the register */
- snprintf(buf + buf_pos, count - buf_pos,
- "%.*x: %c %c %c %c\n",
- reg_len, i,
- regmap_readable(map, i) ? 'y' : 'n',
- regmap_writeable(map, i) ? 'y' : 'n',
- regmap_volatile(map, i) ? 'y' : 'n',
- regmap_precious(map, i) ? 'y' : 'n');
-
- buf_pos += tot_len;
- }
- p += tot_len;
- }
-
- ret = buf_pos;
-
- if (copy_to_user(user_buf, buf, buf_pos)) {
- ret = -EFAULT;
- goto out;
+ /* Format the register */
+ seq_printf(s, "%.*x: %c %c %c %c\n", reg_len, i,
+ regmap_readable(map, i) ? 'y' : 'n',
+ regmap_writeable(map, i) ? 'y' : 'n',
+ regmap_volatile(map, i) ? 'y' : 'n',
+ regmap_precious(map, i) ? 'y' : 'n');
}
- *ppos += buf_pos;
+ return 0;
+}
-out:
- kfree(buf);
- return ret;
+static int access_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, regmap_access_show, inode->i_private);
}
static const struct file_operations regmap_access_fops = {
- .open = simple_open,
- .read = regmap_access_read_file,
- .llseek = default_llseek,
+ .open = access_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
};
static ssize_t regmap_cache_only_write_file(struct file *file,
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 8d16db533527..9b0d202414d0 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -39,8 +39,11 @@ struct regmap_irq_chip_data {
unsigned int *mask_buf;
unsigned int *mask_buf_def;
unsigned int *wake_buf;
+ unsigned int *type_buf;
+ unsigned int *type_buf_def;
unsigned int irq_reg_stride;
+ unsigned int type_reg_stride;
};
static inline const
@@ -144,6 +147,22 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
}
}
+ for (i = 0; i < d->chip->num_type_reg; i++) {
+ if (!d->type_buf_def[i])
+ continue;
+ reg = d->chip->type_base +
+ (i * map->reg_stride * d->type_reg_stride);
+ if (d->chip->type_invert)
+ ret = regmap_update_bits(d->map, reg,
+ d->type_buf_def[i], ~d->type_buf[i]);
+ else
+ ret = regmap_update_bits(d->map, reg,
+ d->type_buf_def[i], d->type_buf[i]);
+ if (ret != 0)
+ dev_err(d->map->dev, "Failed to sync type in %x\n",
+ reg);
+ }
+
if (d->chip->runtime_pm)
pm_runtime_put(map->dev);
@@ -178,6 +197,38 @@ static void regmap_irq_disable(struct irq_data *data)
d->mask_buf[irq_data->reg_offset / map->reg_stride] |= irq_data->mask;
}
+static int regmap_irq_set_type(struct irq_data *data, unsigned int type)
+{
+ struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data);
+ struct regmap *map = d->map;
+ const struct regmap_irq *irq_data = irq_to_regmap_irq(d, data->hwirq);
+ int reg = irq_data->type_reg_offset / map->reg_stride;
+
+ if (!(irq_data->type_rising_mask | irq_data->type_falling_mask))
+ return 0;
+
+ d->type_buf[reg] &= ~(irq_data->type_falling_mask |
+ irq_data->type_rising_mask);
+ switch (type) {
+ case IRQ_TYPE_EDGE_FALLING:
+ d->type_buf[reg] |= irq_data->type_falling_mask;
+ break;
+
+ case IRQ_TYPE_EDGE_RISING:
+ d->type_buf[reg] |= irq_data->type_rising_mask;
+ break;
+
+ case IRQ_TYPE_EDGE_BOTH:
+ d->type_buf[reg] |= (irq_data->type_falling_mask |
+ irq_data->type_rising_mask);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
static int regmap_irq_set_wake(struct irq_data *data, unsigned int on)
{
struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data);
@@ -204,6 +255,7 @@ static const struct irq_chip regmap_irq_chip = {
.irq_bus_sync_unlock = regmap_irq_sync_unlock,
.irq_disable = regmap_irq_disable,
.irq_enable = regmap_irq_enable,
+ .irq_set_type = regmap_irq_set_type,
.irq_set_wake = regmap_irq_set_wake,
};
@@ -386,28 +438,40 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
if (!d)
return -ENOMEM;
- d->status_buf = kzalloc(sizeof(unsigned int) * chip->num_regs,
+ d->status_buf = kcalloc(chip->num_regs, sizeof(unsigned int),
GFP_KERNEL);
if (!d->status_buf)
goto err_alloc;
- d->mask_buf = kzalloc(sizeof(unsigned int) * chip->num_regs,
+ d->mask_buf = kcalloc(chip->num_regs, sizeof(unsigned int),
GFP_KERNEL);
if (!d->mask_buf)
goto err_alloc;
- d->mask_buf_def = kzalloc(sizeof(unsigned int) * chip->num_regs,
+ d->mask_buf_def = kcalloc(chip->num_regs, sizeof(unsigned int),
GFP_KERNEL);
if (!d->mask_buf_def)
goto err_alloc;
if (chip->wake_base) {
- d->wake_buf = kzalloc(sizeof(unsigned int) * chip->num_regs,
+ d->wake_buf = kcalloc(chip->num_regs, sizeof(unsigned int),
GFP_KERNEL);
if (!d->wake_buf)
goto err_alloc;
}
+ if (chip->num_type_reg) {
+ d->type_buf_def = kcalloc(chip->num_type_reg,
+ sizeof(unsigned int), GFP_KERNEL);
+ if (!d->type_buf_def)
+ goto err_alloc;
+
+ d->type_buf = kcalloc(chip->num_type_reg, sizeof(unsigned int),
+ GFP_KERNEL);
+ if (!d->type_buf)
+ goto err_alloc;
+ }
+
d->irq_chip = regmap_irq_chip;
d->irq_chip.name = chip->name;
d->irq = irq;
@@ -420,10 +484,16 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
else
d->irq_reg_stride = 1;
+ if (chip->type_reg_stride)
+ d->type_reg_stride = chip->type_reg_stride;
+ else
+ d->type_reg_stride = 1;
+
if (!map->use_single_read && map->reg_stride == 1 &&
d->irq_reg_stride == 1) {
- d->status_reg_buf = kmalloc(map->format.val_bytes *
- chip->num_regs, GFP_KERNEL);
+ d->status_reg_buf = kmalloc_array(chip->num_regs,
+ map->format.val_bytes,
+ GFP_KERNEL);
if (!d->status_reg_buf)
goto err_alloc;
}
@@ -511,6 +581,33 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
}
}
+ if (chip->num_type_reg) {
+ for (i = 0; i < chip->num_irqs; i++) {
+ reg = chip->irqs[i].type_reg_offset / map->reg_stride;
+ d->type_buf_def[reg] |= chip->irqs[i].type_rising_mask |
+ chip->irqs[i].type_falling_mask;
+ }
+ for (i = 0; i < chip->num_type_reg; ++i) {
+ if (!d->type_buf_def[i])
+ continue;
+
+ reg = chip->type_base +
+ (i * map->reg_stride * d->type_reg_stride);
+ if (chip->type_invert)
+ ret = regmap_update_bits(map, reg,
+ d->type_buf_def[i], 0xFF);
+ else
+ ret = regmap_update_bits(map, reg,
+ d->type_buf_def[i], 0x0);
+ if (ret != 0) {
+ dev_err(map->dev,
+ "Failed to set type in 0x%x: %x\n",
+ reg, ret);
+ goto err_alloc;
+ }
+ }
+ }
+
if (irq_base)
d->domain = irq_domain_add_legacy(map->dev->of_node,
chip->num_irqs, irq_base, 0,
@@ -541,6 +638,8 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
err_domain:
/* Should really dispose of the domain but... */
err_alloc:
+ kfree(d->type_buf);
+ kfree(d->type_buf_def);
kfree(d->wake_buf);
kfree(d->mask_buf_def);
kfree(d->mask_buf);
@@ -564,6 +663,8 @@ void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *d)
free_irq(irq, d);
irq_domain_remove(d->domain);
+ kfree(d->type_buf);
+ kfree(d->type_buf_def);
kfree(d->wake_buf);
kfree(d->mask_buf_def);
kfree(d->mask_buf);
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 4ac63c0e50c7..ee54e841de4a 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -245,6 +245,28 @@ static void regmap_format_32_native(void *buf, unsigned int val,
*(u32 *)buf = val << shift;
}
+#ifdef CONFIG_64BIT
+static void regmap_format_64_be(void *buf, unsigned int val, unsigned int shift)
+{
+ __be64 *b = buf;
+
+ b[0] = cpu_to_be64((u64)val << shift);
+}
+
+static void regmap_format_64_le(void *buf, unsigned int val, unsigned int shift)
+{
+ __le64 *b = buf;
+
+ b[0] = cpu_to_le64((u64)val << shift);
+}
+
+static void regmap_format_64_native(void *buf, unsigned int val,
+ unsigned int shift)
+{
+ *(u64 *)buf = (u64)val << shift;
+}
+#endif
+
static void regmap_parse_inplace_noop(void *buf)
{
}
@@ -332,6 +354,41 @@ static unsigned int regmap_parse_32_native(const void *buf)
return *(u32 *)buf;
}
+#ifdef CONFIG_64BIT
+static unsigned int regmap_parse_64_be(const void *buf)
+{
+ const __be64 *b = buf;
+
+ return be64_to_cpu(b[0]);
+}
+
+static unsigned int regmap_parse_64_le(const void *buf)
+{
+ const __le64 *b = buf;
+
+ return le64_to_cpu(b[0]);
+}
+
+static void regmap_parse_64_be_inplace(void *buf)
+{
+ __be64 *b = buf;
+
+ b[0] = be64_to_cpu(b[0]);
+}
+
+static void regmap_parse_64_le_inplace(void *buf)
+{
+ __le64 *b = buf;
+
+ b[0] = le64_to_cpu(b[0]);
+}
+
+static unsigned int regmap_parse_64_native(const void *buf)
+{
+ return *(u64 *)buf;
+}
+#endif
+
static void regmap_lock_mutex(void *__map)
{
struct regmap *map = __map;
@@ -712,6 +769,21 @@ struct regmap *__regmap_init(struct device *dev,
}
break;
+#ifdef CONFIG_64BIT
+ case 64:
+ switch (reg_endian) {
+ case REGMAP_ENDIAN_BIG:
+ map->format.format_reg = regmap_format_64_be;
+ break;
+ case REGMAP_ENDIAN_NATIVE:
+ map->format.format_reg = regmap_format_64_native;
+ break;
+ default:
+ goto err_map;
+ }
+ break;
+#endif
+
default:
goto err_map;
}
@@ -771,6 +843,28 @@ struct regmap *__regmap_init(struct device *dev,
goto err_map;
}
break;
+#ifdef CONFIG_64BIT
+ case 64:
+ switch (val_endian) {
+ case REGMAP_ENDIAN_BIG:
+ map->format.format_val = regmap_format_64_be;
+ map->format.parse_val = regmap_parse_64_be;
+ map->format.parse_inplace = regmap_parse_64_be_inplace;
+ break;
+ case REGMAP_ENDIAN_LITTLE:
+ map->format.format_val = regmap_format_64_le;
+ map->format.parse_val = regmap_parse_64_le;
+ map->format.parse_inplace = regmap_parse_64_le_inplace;
+ break;
+ case REGMAP_ENDIAN_NATIVE:
+ map->format.format_val = regmap_format_64_native;
+ map->format.parse_val = regmap_parse_64_native;
+ break;
+ default:
+ goto err_map;
+ }
+ break;
+#endif
}
if (map->format.format_write) {
@@ -1513,7 +1607,7 @@ int regmap_write(struct regmap *map, unsigned int reg, unsigned int val)
{
int ret;
- if (reg % map->reg_stride)
+ if (!IS_ALIGNED(reg, map->reg_stride))
return -EINVAL;
map->lock(map->lock_arg);
@@ -1540,7 +1634,7 @@ int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val)
{
int ret;
- if (reg % map->reg_stride)
+ if (!IS_ALIGNED(reg, map->reg_stride))
return -EINVAL;
map->lock(map->lock_arg);
@@ -1714,7 +1808,7 @@ int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
if (map->bus && !map->format.parse_inplace)
return -EINVAL;
- if (reg % map->reg_stride)
+ if (!IS_ALIGNED(reg, map->reg_stride))
return -EINVAL;
/*
@@ -1983,7 +2077,7 @@ static int _regmap_multi_reg_write(struct regmap *map,
int reg = regs[i].reg;
if (!map->writeable_reg(map->dev, reg))
return -EINVAL;
- if (reg % map->reg_stride)
+ if (!IS_ALIGNED(reg, map->reg_stride))
return -EINVAL;
}
@@ -2133,7 +2227,7 @@ int regmap_raw_write_async(struct regmap *map, unsigned int reg,
if (val_len % map->format.val_bytes)
return -EINVAL;
- if (reg % map->reg_stride)
+ if (!IS_ALIGNED(reg, map->reg_stride))
return -EINVAL;
map->lock(map->lock_arg);
@@ -2260,7 +2354,7 @@ int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val)
{
int ret;
- if (reg % map->reg_stride)
+ if (!IS_ALIGNED(reg, map->reg_stride))
return -EINVAL;
map->lock(map->lock_arg);
@@ -2296,7 +2390,7 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val,
return -EINVAL;
if (val_len % map->format.val_bytes)
return -EINVAL;
- if (reg % map->reg_stride)
+ if (!IS_ALIGNED(reg, map->reg_stride))
return -EINVAL;
if (val_count == 0)
return -EINVAL;
@@ -2414,7 +2508,7 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
size_t val_bytes = map->format.val_bytes;
bool vol = regmap_volatile_range(map, reg, val_count);
- if (reg % map->reg_stride)
+ if (!IS_ALIGNED(reg, map->reg_stride))
return -EINVAL;
if (map->bus && map->format.parse_inplace && (vol || map->cache_type == REGCACHE_NONE)) {
@@ -2488,11 +2582,19 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
* we assume that the values are native
* endian.
*/
+#ifdef CONFIG_64BIT
+ u64 *u64 = val;
+#endif
u32 *u32 = val;
u16 *u16 = val;
u8 *u8 = val;
switch (map->format.val_bytes) {
+#ifdef CONFIG_64BIT
+ case 8:
+ u64[i] = ival;
+ break;
+#endif
case 4:
u32[i] = ival;
break;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 01:32:45 +0000