diff mbox series

[v3,2/5] input: himax_hx83112b: use more descriptive register defines

Message ID 20240620145019.156187-3-felix@kaechele.ca (mailing list archive)
State Mainlined
Commit 4f6a86e568ced06a28d1e86d7f432f1c42554d52
Headers show
Series himax_hx83112b: add support for HX83100A | expand

Commit Message

Felix Kaechele June 20, 2024, 2:50 p.m. UTC 
Himax uses an AHB-style bus to communicate with different parts of the
display driver and touch controller system.
Use more descriptive names for the register and address defines.
The names were taken from a driver submission for the similar HX83102J
chip.

Signed-off-by: Felix Kaechele <felix@kaechele.ca>
Link: https://lore.kernel.org/all/TY0PR06MB561105A3386E9D76F429110D9E0F2@TY0PR06MB5611.apcprd06.prod.outlook.com/
---
 drivers/input/touchscreen/himax_hx83112b.c | 23 ++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/drivers/input/touchscreen/himax_hx83112b.c b/drivers/input/touchscreen/himax_hx83112b.c
index bafabd06dabc..d6c4a68eac23 100644
--- a/drivers/input/touchscreen/himax_hx83112b.c
+++ b/drivers/input/touchscreen/himax_hx83112b.c
@@ -24,12 +24,14 @@ 
 
 #define HIMAX_MAX_POINTS		10
 
-#define HIMAX_REG_CFG_SET_ADDR		0x00
-#define HIMAX_REG_CFG_INIT_READ		0x0c
-#define HIMAX_REG_CFG_READ_VALUE	0x08
-#define HIMAX_REG_READ_EVENT		0x30
+#define HIMAX_AHB_ADDR_BYTE_0			0x00
+#define HIMAX_AHB_ADDR_RDATA_BYTE_0		0x08
+#define HIMAX_AHB_ADDR_ACCESS_DIRECTION		0x0c
+#define HIMAX_AHB_ADDR_EVENT_STACK		0x30
 
-#define HIMAX_CFG_PRODUCT_ID		0x900000d0
+#define HIMAX_AHB_CMD_ACCESS_DIRECTION_READ	0x00
+
+#define HIMAX_REG_ADDR_ICID			0x900000d0
 
 #define HIMAX_INVALID_COORD		0xffff
 
@@ -67,15 +69,16 @@  static int himax_read_config(struct himax_ts_data *ts, u32 address, u32 *dst)
 {
 	int error;
 
-	error = regmap_write(ts->regmap, HIMAX_REG_CFG_SET_ADDR, address);
+	error = regmap_write(ts->regmap, HIMAX_AHB_ADDR_BYTE_0, address);
 	if (error)
 		return error;
 
-	error = regmap_write(ts->regmap, HIMAX_REG_CFG_INIT_READ, 0x0);
+	error = regmap_write(ts->regmap, HIMAX_AHB_ADDR_ACCESS_DIRECTION,
+			     HIMAX_AHB_CMD_ACCESS_DIRECTION_READ);
 	if (error)
 		return error;
 
-	error = regmap_read(ts->regmap, HIMAX_REG_CFG_READ_VALUE, dst);
+	error = regmap_read(ts->regmap, HIMAX_AHB_ADDR_RDATA_BYTE_0, dst);
 	if (error)
 		return error;
 
@@ -101,7 +104,7 @@  static int himax_read_product_id(struct himax_ts_data *ts, u32 *product_id)
 {
 	int error;
 
-	error = himax_read_config(ts, HIMAX_CFG_PRODUCT_ID, product_id);
+	error = himax_read_config(ts, HIMAX_REG_ADDR_ICID, product_id);
 	if (error)
 		return error;
 
@@ -235,7 +238,7 @@  static int himax_handle_input(struct himax_ts_data *ts)
 	int error;
 	struct himax_event event;
 
-	error = regmap_raw_read(ts->regmap, HIMAX_REG_READ_EVENT, &event,
+	error = regmap_raw_read(ts->regmap, HIMAX_AHB_ADDR_EVENT_STACK, &event,
 				sizeof(event));
 	if (error) {
 		dev_err(&ts->client->dev, "Failed to read input event: %d\n",