static int regcache_rbtree_exit(struct regmap *map);
struct regcache_rbtree_node {
- /* the actual rbtree node holding this block */
- struct rb_node node;
- /* base register handled by this block */
- unsigned int base_reg;
/* block of adjacent registers */
void *block;
/* Which registers are present */
long *cache_present;
+ /* base register handled by this block */
+ unsigned int base_reg;
/* number of registers available in the block */
unsigned int blklen;
+ /* the actual rbtree node holding this block */
+ struct rb_node node;
} __attribute__ ((packed));
struct regcache_rbtree_ctx {
* published by the Free Software Foundation.
*/
-#include <linux/export.h>
#include <linux/device.h>
-#include <linux/regmap.h>
-#include <linux/irq.h>
+#include <linux/export.h>
#include <linux/interrupt.h>
+#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
#include <linux/slab.h>
#include "internal.h"
int ret = -ENOMEM;
u32 reg;
+ if (chip->num_regs <= 0)
+ return -EINVAL;
+
for (i = 0; i < chip->num_irqs; i++) {
if (chip->irqs[i].reg_offset % map->reg_stride)
return -EINVAL;
BUG_ON(count <= offset);
}
+static inline unsigned int
+regmap_mmio_get_offset(const void *reg, size_t reg_size)
+{
+ switch (reg_size) {
+ case 1:
+ return *(u8 *)reg;
+ case 2:
+ return *(u16 *)reg;
+ case 4:
+ return *(u32 *)reg;
+#ifdef CONFIG_64BIT
+ case 8:
+ return *(u64 *)reg;
+#endif
+ default:
+ BUG();
+ }
+}
+
static int regmap_mmio_gather_write(void *context,
const void *reg, size_t reg_size,
const void *val, size_t val_size)
{
struct regmap_mmio_context *ctx = context;
- u32 offset;
+ unsigned int offset;
int ret;
regmap_mmio_regsize_check(reg_size);
return ret;
}
- offset = *(u32 *)reg;
+ offset = regmap_mmio_get_offset(reg, reg_size);
while (val_size) {
switch (ctx->val_bytes) {
static int regmap_mmio_write(void *context, const void *data, size_t count)
{
struct regmap_mmio_context *ctx = context;
- u32 offset = ctx->reg_bytes + ctx->pad_bytes;
+ unsigned int offset = ctx->reg_bytes + ctx->pad_bytes;
regmap_mmio_count_check(count, offset);
void *val, size_t val_size)
{
struct regmap_mmio_context *ctx = context;
- u32 offset;
+ unsigned int offset;
int ret;
regmap_mmio_regsize_check(reg_size);
return ret;
}
- offset = *(u32 *)reg;
+ offset = regmap_mmio_get_offset(reg, reg_size);
while (val_size) {
switch (ctx->val_bytes) {
b[0] = cpu_to_be16(val << shift);
}
+static void regmap_format_16_le(void *buf, unsigned int val, unsigned int shift)
+{
+ __le16 *b = buf;
+
+ b[0] = cpu_to_le16(val << shift);
+}
+
static void regmap_format_16_native(void *buf, unsigned int val,
unsigned int shift)
{
b[0] = cpu_to_be32(val << shift);
}
+static void regmap_format_32_le(void *buf, unsigned int val, unsigned int shift)
+{
+ __le32 *b = buf;
+
+ b[0] = cpu_to_le32(val << shift);
+}
+
static void regmap_format_32_native(void *buf, unsigned int val,
unsigned int shift)
{
return be16_to_cpu(b[0]);
}
+static unsigned int regmap_parse_16_le(const void *buf)
+{
+ const __le16 *b = buf;
+
+ return le16_to_cpu(b[0]);
+}
+
static void regmap_parse_16_be_inplace(void *buf)
{
__be16 *b = buf;
b[0] = be16_to_cpu(b[0]);
}
+static void regmap_parse_16_le_inplace(void *buf)
+{
+ __le16 *b = buf;
+
+ b[0] = le16_to_cpu(b[0]);
+}
+
static unsigned int regmap_parse_16_native(const void *buf)
{
return *(u16 *)buf;
return be32_to_cpu(b[0]);
}
+static unsigned int regmap_parse_32_le(const void *buf)
+{
+ const __le32 *b = buf;
+
+ return le32_to_cpu(b[0]);
+}
+
static void regmap_parse_32_be_inplace(void *buf)
{
__be32 *b = buf;
b[0] = be32_to_cpu(b[0]);
}
+static void regmap_parse_32_le_inplace(void *buf)
+{
+ __le32 *b = buf;
+
+ b[0] = le32_to_cpu(b[0]);
+}
+
static unsigned int regmap_parse_32_native(const void *buf)
{
return *(u32 *)buf;
map->format.parse_val = regmap_parse_16_be;
map->format.parse_inplace = regmap_parse_16_be_inplace;
break;
+ case REGMAP_ENDIAN_LITTLE:
+ map->format.format_val = regmap_format_16_le;
+ map->format.parse_val = regmap_parse_16_le;
+ map->format.parse_inplace = regmap_parse_16_le_inplace;
+ break;
case REGMAP_ENDIAN_NATIVE:
map->format.format_val = regmap_format_16_native;
map->format.parse_val = regmap_parse_16_native;
map->format.parse_val = regmap_parse_32_be;
map->format.parse_inplace = regmap_parse_32_be_inplace;
break;
+ case REGMAP_ENDIAN_LITTLE:
+ map->format.format_val = regmap_format_32_le;
+ map->format.parse_val = regmap_parse_32_le;
+ map->format.parse_inplace = regmap_parse_32_le_inplace;
+ break;
case REGMAP_ENDIAN_NATIVE:
map->format.format_val = regmap_format_32_native;
map->format.parse_val = regmap_parse_32_native;