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Subject[PATCH 1/2] Input: cros_ec_keyb - switch to using generic device properties
Date
In preparation to enabling this driver on x86 devices let's switch
from OF-specific property API to the generic one.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
drivers/input/keyboard/cros_ec_keyb.c | 68 ++++++++++++++++++---------
1 file changed, 46 insertions(+), 22 deletions(-)

diff --git a/drivers/input/keyboard/cros_ec_keyb.c b/drivers/input/keyboard/cros_ec_keyb.c
index cc73a149da28..e8338b1c5776 100644
--- a/drivers/input/keyboard/cros_ec_keyb.c
+++ b/drivers/input/keyboard/cros_ec_keyb.c
@@ -518,6 +518,50 @@ static int cros_ec_keyb_register_bs(struct cros_ec_keyb *ckdev,
return 0;
}

+static void cros_ec_keyb_parse_vivaldi_physmap(struct cros_ec_keyb *ckdev)
+{
+ u32 *physmap = ckdev->vdata.function_row_physmap;
+ unsigned int row, col, scancode;
+ int n_physmap;
+ int error;
+ int i;
+
+ n_physmap = device_property_count_u32(ckdev->dev,
+ "function-row-physmap");
+ if (n_physmap <= 0)
+ return;
+
+ if (n_physmap >= VIVALDI_MAX_FUNCTION_ROW_KEYS) {
+ dev_warn(ckdev->dev,
+ "only up to %d top row keys is supported (%d specified)\n",
+ VIVALDI_MAX_FUNCTION_ROW_KEYS, n_physmap);
+ n_physmap = VIVALDI_MAX_FUNCTION_ROW_KEYS;
+ }
+
+ error = device_property_read_u32_array(ckdev->dev,
+ "function-row-physmap",
+ physmap, n_physmap);
+ if (error) {
+ dev_warn(ckdev->dev,
+ "failed to parse function-row-physmap property: %d\n",
+ error);
+ return;
+ }
+
+ /*
+ * Convert (in place) from row/column encoding to matrix "scancode"
+ * used by the driver.
+ */
+ for (i = 0; i < n_physmap; i++) {
+ row = KEY_ROW(physmap[i]);
+ col = KEY_COL(physmap[i]);
+ scancode = MATRIX_SCAN_CODE(row, col, ckdev->row_shift);
+ physmap[i] = scancode;
+ }
+
+ ckdev->vdata.num_function_row_keys = n_physmap;
+}
+
/**
* cros_ec_keyb_register_matrix - Register matrix keys
*
@@ -534,11 +578,6 @@ static int cros_ec_keyb_register_matrix(struct cros_ec_keyb *ckdev)
struct input_dev *idev;
const char *phys;
int err;
- struct property *prop;
- const __be32 *p;
- u32 *physmap;
- u32 key_pos;
- unsigned int row, col, scancode, n_physmap;

err = matrix_keypad_parse_properties(dev, &ckdev->rows, &ckdev->cols);
if (err)
@@ -573,7 +612,7 @@ static int cros_ec_keyb_register_matrix(struct cros_ec_keyb *ckdev)
idev->id.product = 0;
idev->dev.parent = dev;

- ckdev->ghost_filter = of_property_read_bool(dev->of_node,
+ ckdev->ghost_filter = device_property_read_bool(dev,
"google,needs-ghost-filter");

err = matrix_keypad_build_keymap(NULL, NULL, ckdev->rows, ckdev->cols,
@@ -589,22 +628,7 @@ static int cros_ec_keyb_register_matrix(struct cros_ec_keyb *ckdev)
input_set_drvdata(idev, ckdev);
ckdev->idev = idev;
cros_ec_keyb_compute_valid_keys(ckdev);
-
- physmap = ckdev->vdata.function_row_physmap;
- n_physmap = 0;
- of_property_for_each_u32(dev->of_node, "function-row-physmap",
- prop, p, key_pos) {
- if (n_physmap == VIVALDI_MAX_FUNCTION_ROW_KEYS) {
- dev_warn(dev, "Only support up to %d top row keys\n",
- VIVALDI_MAX_FUNCTION_ROW_KEYS);
- break;
- }
- row = KEY_ROW(key_pos);
- col = KEY_COL(key_pos);
- scancode = MATRIX_SCAN_CODE(row, col, ckdev->row_shift);
- physmap[n_physmap++] = scancode;
- }
- ckdev->vdata.num_function_row_keys = n_physmap;
+ cros_ec_keyb_parse_vivaldi_physmap(ckdev);

err = input_register_device(ckdev->idev);
if (err) {
--
2.36.1.124.g0e6072fb45-goog
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