From 998ed43fde10c64b3e949a904746464b23796971 Mon Sep 17 00:00:00 2001 From: Anup Patel Date: Fri, 13 May 2022 09:26:45 +0530 Subject: [PATCH] lib: utils/i2c: Generate FDT i2c adapter driver list at compile-time 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 Reviewed-by: Atish Patra --- lib/utils/i2c/fdt_i2c.c | 14 +++++--------- lib/utils/i2c/fdt_i2c_adapter_drivers.carray | 3 +++ lib/utils/i2c/objects.mk | 4 ++++ 3 files changed, 12 insertions(+), 9 deletions(-) create mode 100644 lib/utils/i2c/fdt_i2c_adapter_drivers.carray diff --git a/lib/utils/i2c/fdt_i2c.c b/lib/utils/i2c/fdt_i2c.c index be8e5066..6fd35dd0 100644 --- a/lib/utils/i2c/fdt_i2c.c +++ b/lib/utils/i2c/fdt_i2c.c @@ -16,13 +16,9 @@ #include #include -#include - -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); diff --git a/lib/utils/i2c/fdt_i2c_adapter_drivers.carray b/lib/utils/i2c/fdt_i2c_adapter_drivers.carray new file mode 100644 index 00000000..fd51ae1a --- /dev/null +++ b/lib/utils/i2c/fdt_i2c_adapter_drivers.carray @@ -0,0 +1,3 @@ +HEADER: sbi_utils/i2c/fdt_i2c.h +TYPE: struct fdt_i2c_adapter +NAME: fdt_i2c_adapter_drivers diff --git a/lib/utils/i2c/objects.mk b/lib/utils/i2c/objects.mk index a748c480..bb0d6d59 100644 --- a/lib/utils/i2c/objects.mk +++ b/lib/utils/i2c/objects.mk @@ -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