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lib: utils/i2c: Generate FDT i2c adapter driver list at compile-time

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Instead of having FDT i2c adapter driver list hard-coded in the C source,
we generate it using carray.sh at compile-time.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
This commit is contained in:
Anup Patel
2022-05-13 09:26:45 +05:30
committed by Anup Patel
parent 4ee0c57969
commit 998ed43fde
3 changed files with 12 additions and 9 deletions
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14
lib/utils/i2c/fdt_i2c.c
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@@ -16,13 +16,9 @@
#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/i2c/fdt_i2c.h>
#include <sbi/sbi_console.h>
extern struct fdt_i2c_adapter fdt_i2c_adapter_sifive;
static struct fdt_i2c_adapter *i2c_adapter_drivers[] = {
&fdt_i2c_adapter_sifive
};
/* List of FDT i2c adapter drivers generated at compile time */
extern struct fdt_i2c_adapter *fdt_i2c_adapter_drivers[];
extern unsigned long fdt_i2c_adapter_drivers_size;
static int fdt_i2c_adapter_init(void *fdt, int nodeoff)
{
@@ -31,8 +27,8 @@ static int fdt_i2c_adapter_init(void *fdt, int nodeoff)
const struct fdt_match *match;
/* Try all I2C drivers one-by-one */
for (pos = 0; pos < array_size(i2c_adapter_drivers); pos++) {
drv = i2c_adapter_drivers[pos];
for (pos = 0; pos < fdt_i2c_adapter_drivers_size; pos++) {
drv = fdt_i2c_adapter_drivers[pos];
match = fdt_match_node(fdt, nodeoff, drv->match_table);
if (match && drv->init) {
rc = drv->init(fdt, nodeoff, match);

3
lib/utils/i2c/fdt_i2c_adapter_drivers.carray Normal file
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@@ -0,0 +1,3 @@
HEADER: sbi_utils/i2c/fdt_i2c.h
TYPE: struct fdt_i2c_adapter
NAME: fdt_i2c_adapter_drivers

4
lib/utils/i2c/objects.mk
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@@ -8,5 +8,9 @@
#
libsbiutils-objs-y += i2c/i2c.o
libsbiutils-objs-y += i2c/fdt_i2c.o
libsbiutils-objs-y += i2c/fdt_i2c_adapter_drivers.o
carray-fdt_i2c_adapter_drivers-y += fdt_i2c_adapter_sifive
libsbiutils-objs-y += i2c/fdt_i2c_sifive.o