[PATCH v2 2/5] input: himax_hx83112b: use more descriptive register defines
From: Felix Kaechele <hidden>
Date: 2024-05-11 12:12:52
Also in:
linux-devicetree, lkml
Subsystem:
himax hx83112b touchscreen support, input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Job Noorman, Dmitry Torokhov, Linus Torvalds
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 <redacted> Link: https://lore.kernel.org/all/TY0PR06MB561105A3386E9D76F429110D9E0F2@TY0PR06MB5611.apcprd06.prod.outlook.com/ (local) --- drivers/input/touchscreen/himax_hx83112b.c | 23 ++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-)
diff --git a/drivers/input/touchscreen/himax_hx83112b.c b/drivers/input/touchscreen/himax_hx83112b.c
index 4f6609dcdef3..2da2920d43f9 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",
--
2.45.0