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Merge remote-tracking branches 'regmap/topic/mmio', 'regmap/topic/rbtree' and 'regmap/topic/seq' into regmap-next

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This commit is contained in:
Mark Brown 2016-01-05 19:07:18 +00:00
commit 6cb07abcc3
12 changed files with 63 additions and 90 deletions
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1
arch/mips/boot/dts/brcm/bcm6328.dtsi
View File

@ -73,7 +73,6 @@
timer: timer@10000040 {
compatible = "syscon";
reg = <0x10000040 0x2c>;
little-endian;
};
reboot {

1
arch/mips/boot/dts/brcm/bcm7125.dtsi
View File

@ -98,7 +98,6 @@
sun_top_ctrl: syscon@404000 {
compatible = "brcm,bcm7125-sun-top-ctrl", "syscon";
reg = <0x404000 0x60c>;
little-endian;
};
reboot {

1
arch/mips/boot/dts/brcm/bcm7346.dtsi
View File

@ -118,7 +118,6 @@
sun_top_ctrl: syscon@404000 {
compatible = "brcm,bcm7346-sun-top-ctrl", "syscon";
reg = <0x404000 0x51c>;
little-endian;
};
reboot {

1
arch/mips/boot/dts/brcm/bcm7358.dtsi
View File

@ -112,7 +112,6 @@
sun_top_ctrl: syscon@404000 {
compatible = "brcm,bcm7358-sun-top-ctrl", "syscon";
reg = <0x404000 0x51c>;
little-endian;
};
reboot {

1
arch/mips/boot/dts/brcm/bcm7360.dtsi
View File

@ -112,7 +112,6 @@
sun_top_ctrl: syscon@404000 {
compatible = "brcm,bcm7360-sun-top-ctrl", "syscon";
reg = <0x404000 0x51c>;
little-endian;
};
reboot {

1
arch/mips/boot/dts/brcm/bcm7362.dtsi
View File

@ -118,7 +118,6 @@
sun_top_ctrl: syscon@404000 {
compatible = "brcm,bcm7362-sun-top-ctrl", "syscon";
reg = <0x404000 0x51c>;
little-endian;
};
reboot {

1
arch/mips/boot/dts/brcm/bcm7420.dtsi
View File

@ -99,7 +99,6 @@
sun_top_ctrl: syscon@404000 {
compatible = "brcm,bcm7420-sun-top-ctrl", "syscon";
reg = <0x404000 0x60c>;
little-endian;
};
reboot {

1
arch/mips/boot/dts/brcm/bcm7425.dtsi
View File

@ -100,7 +100,6 @@
sun_top_ctrl: syscon@404000 {
compatible = "brcm,bcm7425-sun-top-ctrl", "syscon";
reg = <0x404000 0x51c>;
little-endian;
};
reboot {

1
arch/mips/boot/dts/brcm/bcm7435.dtsi
View File

@ -114,7 +114,6 @@
sun_top_ctrl: syscon@404000 {
compatible = "brcm,bcm7425-sun-top-ctrl", "syscon";
reg = <0x404000 0x51c>;
little-endian;
};
reboot {

9
drivers/base/regmap/regcache-rbtree.c
View File

@ -414,8 +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);
@ -426,6 +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;
}

57
drivers/base/regmap/regmap-debugfs.c
View File

@ -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;
struct regmap *map = s->private;
int i, reg_len;
if (*ppos < 0 || !count)
return -EINVAL;
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,
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');
buf_pos += tot_len;
}
p += tot_len;
}
ret = buf_pos;
if (copy_to_user(user_buf, buf, buf_pos)) {
ret = -EFAULT;
goto out;
return 0;
}
*ppos += buf_pos;
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,

66
drivers/base/regmap/regmap-mmio.c
View File

@ -61,6 +61,33 @@ static int regmap_mmio_regbits_check(size_t reg_bits)
}
}
static int regmap_mmio_get_min_stride(size_t val_bits)
{
int min_stride;
switch (val_bits) {
case 8:
/* The core treats 0 as 1 */
min_stride = 0;
return 0;
case 16:
min_stride = 2;
break;
case 32:
min_stride = 4;
break;
#ifdef CONFIG_64BIT
case 64:
min_stride = 8;
break;
#endif
default:
return -EINVAL;
}
return min_stride;
}
static inline void regmap_mmio_count_check(size_t count, u32 offset)
{
BUG_ON(count <= offset);
@ -106,17 +133,17 @@ static int regmap_mmio_gather_write(void *context,
while (val_size) {
switch (ctx->val_bytes) {
case 1:
writeb(*(u8 *)val, ctx->regs + offset);
__raw_writeb(*(u8 *)val, ctx->regs + offset);
break;
case 2:
writew(*(u16 *)val, ctx->regs + offset);
__raw_writew(*(u16 *)val, ctx->regs + offset);
break;
case 4:
writel(*(u32 *)val, ctx->regs + offset);
__raw_writel(*(u32 *)val, ctx->regs + offset);
break;
#ifdef CONFIG_64BIT
case 8:
writeq(*(u64 *)val, ctx->regs + offset);
__raw_writeq(*(u64 *)val, ctx->regs + offset);
break;
#endif
default:
@ -166,17 +193,17 @@ static int regmap_mmio_read(void *context,
while (val_size) {
switch (ctx->val_bytes) {
case 1:
*(u8 *)val = readb(ctx->regs + offset);
*(u8 *)val = __raw_readb(ctx->regs + offset);
break;
case 2:
*(u16 *)val = readw(ctx->regs + offset);
*(u16 *)val = __raw_readw(ctx->regs + offset);
break;
case 4:
*(u32 *)val = readl(ctx->regs + offset);
*(u32 *)val = __raw_readl(ctx->regs + offset);
break;
#ifdef CONFIG_64BIT
case 8:
*(u64 *)val = readq(ctx->regs + offset);
*(u64 *)val = __raw_readq(ctx->regs + offset);
break;
#endif
default:
@ -231,26 +258,9 @@ static struct regmap_mmio_context *regmap_mmio_gen_context(struct device *dev,
if (config->pad_bits)
return ERR_PTR(-EINVAL);
switch (config->val_bits) {
case 8:
/* The core treats 0 as 1 */
min_stride = 0;
break;
case 16:
min_stride = 2;
break;
case 32:
min_stride = 4;
break;
#ifdef CONFIG_64BIT
case 64:
min_stride = 8;
break;
#endif
break;
default:
return ERR_PTR(-EINVAL);
}
min_stride = regmap_mmio_get_min_stride(config->val_bits);
if (min_stride < 0)
return ERR_PTR(min_stride);
if (config->reg_stride < min_stride)
return ERR_PTR(-EINVAL);