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lib: utils/i2c: Constify FDT pointers in parsing functions

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Indicate that none of these functions modify the devicetree by
constifying the parameter type.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Samuel Holland
2024-07-30 21:58:46 -07:00
committed by Anup Patel
parent c585354380
commit 039e810437
4 changed files with 9 additions and 9 deletions
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4
include/sbi_utils/i2c/fdt_i2c.h
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@@ -15,12 +15,12 @@
/** FDT based I2C adapter driver */ /** FDT based I2C adapter driver */
struct fdt_i2c_adapter { struct fdt_i2c_adapter {
const struct fdt_match *match_table; const struct fdt_match *match_table;
int (*init)(void *fdt, int nodeoff, int (*init)(const void *fdt, int nodeoff,
const struct fdt_match *match); const struct fdt_match *match);
}; };
/** Get I2C adapter identified by nodeoff */ /** Get I2C adapter identified by nodeoff */
int fdt_i2c_adapter_get(void *fdt, int nodeoff, int fdt_i2c_adapter_get(const void *fdt, int nodeoff,
struct i2c_adapter **out_adapter); struct i2c_adapter **out_adapter);
#endif #endif

6
lib/utils/i2c/fdt_i2c.c
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@@ -20,7 +20,7 @@
extern struct fdt_i2c_adapter *fdt_i2c_adapter_drivers[]; extern struct fdt_i2c_adapter *fdt_i2c_adapter_drivers[];
extern unsigned long fdt_i2c_adapter_drivers_size; extern unsigned long fdt_i2c_adapter_drivers_size;
static int fdt_i2c_adapter_init(void *fdt, int nodeoff) static int fdt_i2c_adapter_init(const void *fdt, int nodeoff)
{ {
int pos, rc; int pos, rc;
struct fdt_i2c_adapter *drv; struct fdt_i2c_adapter *drv;
@@ -43,7 +43,7 @@ static int fdt_i2c_adapter_init(void *fdt, int nodeoff)
return SBI_ENOSYS; return SBI_ENOSYS;
} }
static int fdt_i2c_adapter_find(void *fdt, int nodeoff, static int fdt_i2c_adapter_find(const void *fdt, int nodeoff,
struct i2c_adapter **out_adapter) struct i2c_adapter **out_adapter)
{ {
int rc; int rc;
@@ -67,7 +67,7 @@ static int fdt_i2c_adapter_find(void *fdt, int nodeoff,
return 0; return 0;
} }
int fdt_i2c_adapter_get(void *fdt, int nodeoff, int fdt_i2c_adapter_get(const void *fdt, int nodeoff,
struct i2c_adapter **out_adapter) struct i2c_adapter **out_adapter)
{ {
int rc; int rc;

4
lib/utils/i2c/fdt_i2c_dw.c
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@@ -15,8 +15,8 @@
#include <sbi_utils/i2c/dw_i2c.h> #include <sbi_utils/i2c/dw_i2c.h>
#include <sbi_utils/i2c/fdt_i2c.h> #include <sbi_utils/i2c/fdt_i2c.h>
static int fdt_dw_i2c_init(void *fdt, int nodeoff, static int fdt_dw_i2c_init(const void *fdt, int nodeoff,
const struct fdt_match *match) const struct fdt_match *match)
{ {
int rc; int rc;
struct dw_i2c_adapter *adapter; struct dw_i2c_adapter *adapter;

4
lib/utils/i2c/fdt_i2c_sifive.c
View File

@@ -230,8 +230,8 @@ static int sifive_i2c_adapter_read(struct i2c_adapter *ia, uint8_t addr,
return 0; return 0;
} }
static int sifive_i2c_init(void *fdt, int nodeoff, static int sifive_i2c_init(const void *fdt, int nodeoff,
const struct fdt_match *match) const struct fdt_match *match)
{ {
int rc; int rc;
struct sifive_i2c_adapter *adapter; struct sifive_i2c_adapter *adapter;