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authorSimon Glass <sjg@chromium.org>2012-09-27 15:18:40 +0000
committerTom Rini <trini@ti.com>2012-10-15 11:54:04 -0700
commit00f1099e09d627632b60a3a29cb1bce2339510a7 (patch)
tree3c16698dcbc58c85cef35354e8a7b663a9000e3d
parent92eee7cde155d75c53a048eb93116ea8ea62db10 (diff)
downloadu-boot-linaro-stable-00f1099e09d627632b60a3a29cb1bce2339510a7.tar.gz
input: Correct key_matrix fdt decoding
Some issues with this were not addressed in the previous series. Fix up the binding decoding to deal with what is actually expected in the fdt. This corrects the broken keyboard on seaboard. Signed-off-by: Simon Glass <sjg@chromium.org>
-rw-r--r--drivers/input/key_matrix.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/input/key_matrix.c b/drivers/input/key_matrix.c
index 715e57a2a..c08caa682 100644
--- a/drivers/input/key_matrix.c
+++ b/drivers/input/key_matrix.c
@@ -153,6 +153,8 @@ int key_matrix_decode_fdt(struct key_matrix *config, const void *blob,
int node)
{
const struct fdt_property *prop;
+ const char prefix[] = "linux,";
+ int plen = sizeof(prefix) - 1;
int offset;
/* Check each property name for ones that we understand */
@@ -168,16 +170,17 @@ int key_matrix_decode_fdt(struct key_matrix *config, const void *blob,
/* Name needs to match "1,<type>keymap" */
debug("%s: property '%s'\n", __func__, name);
- if (strncmp(name, "1,", 2) || len < 8 ||
- strcmp(name + len - 6, "keymap"))
+ if (strncmp(name, prefix, plen) ||
+ len < plen + 6 ||
+ strcmp(name + len - 6, "keymap"))
continue;
- len -= 8;
+ len -= plen + 6;
if (len == 0) {
config->plain_keycode = create_keymap(config,
(u32 *)prop->data, fdt32_to_cpu(prop->len),
KEY_FN, &config->fn_pos);
- } else if (0 == strncmp(name + 2, "fn-", len)) {
+ } else if (0 == strncmp(name + plen, "fn-", len)) {
config->fn_keycode = create_keymap(config,
(u32 *)prop->data, fdt32_to_cpu(prop->len),
-1, NULL);