cros-ec-keyboard: Synchronize DT binding from linux
The ChromeOS EC keyboard is used by various different chromebooks. Peach
pi being the third board in the u-boot tree to use it (snow and peach
pit the other two). Rather then embedding the same big DT node in the
peach-pi DT again, copy the dtsi snippit & bindings documentation from
linux and include it in all 3 boards.
This slightly changes the dt bindings in u-boot:
* google,key-rows becomes keypad,num-rows
* google,key-colums becomes keypad,num-colums
* google,repeat-delay-ms and google,repeat-rate-ms are no longer used
and replaced by hardcoded values (similar to tegra kbc)
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/input/cros_ec_keyb.c b/drivers/input/cros_ec_keyb.c
index 47502b1..49ee7b2 100644
--- a/drivers/input/cros_ec_keyb.c
+++ b/drivers/input/cros_ec_keyb.c
@@ -18,6 +18,8 @@
enum {
KBC_MAX_KEYS = 8, /* Maximum keys held down at once */
+ KBC_REPEAT_RATE_MS = 30,
+ KBC_REPEAT_DELAY_MS = 240,
};
static struct keyb {
@@ -26,8 +28,6 @@
struct key_matrix matrix; /* The key matrix layer */
int key_rows; /* Number of keyboard rows */
int key_cols; /* Number of keyboard columns */
- unsigned int repeat_delay_ms; /* Time before autorepeat starts */
- unsigned int repeat_rate_ms; /* Autorepeat rate in ms */
int ghost_filter; /* 1 to enable ghost filter, else 0 */
int inited; /* 1 if keyboard is ready */
} config;
@@ -188,8 +188,8 @@
* Get keyboard rows and columns - at present we are limited to
* 8 columns by the protocol (one byte per row scan)
*/
- config->key_rows = fdtdec_get_int(blob, node, "google,key-rows", 0);
- config->key_cols = fdtdec_get_int(blob, node, "google,key-columns", 0);
+ config->key_rows = fdtdec_get_int(blob, node, "keypad,num-rows", 0);
+ config->key_cols = fdtdec_get_int(blob, node, "keypad,num-columns", 0);
if (!config->key_rows || !config->key_cols ||
config->key_rows * config->key_cols / 8
> CROS_EC_KEYSCAN_COLS) {
@@ -197,10 +197,6 @@
config->key_rows, config->key_cols);
return -1;
}
- config->repeat_delay_ms = fdtdec_get_int(blob, node,
- "google,repeat-delay-ms", 0);
- config->repeat_rate_ms = fdtdec_get_int(blob, node,
- "google,repeat-rate-ms", 0);
config->ghost_filter = fdtdec_get_bool(blob, node,
"google,ghost-filter");
return 0;
@@ -232,8 +228,8 @@
}
if (cros_ec_keyb_decode_fdt(blob, node, &config))
return -1;
- input_set_delays(&config.input, config.repeat_delay_ms,
- config.repeat_rate_ms);
+ input_set_delays(&config.input, KBC_REPEAT_DELAY_MS,
+ KBC_REPEAT_RATE_MS);
if (key_matrix_init(&config.matrix, config.key_rows,
config.key_cols, config.ghost_filter)) {
debug("%s: cannot init key matrix\n", __func__);