[PATCH v3 2/2] Input: cap11xx - add support for cap1203, cap1293 and cap1298

From: Jiri Valek - 2N
Date: Tue Jan 10 2023 - 10:30:26 EST


Add basic support for more CAP1xxx sensors.
All models from CAP1xxx family are register-compatible.
Some advanced features are not used and disabled by default.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Jiri Valek - 2N <jiriv@xxxxxxxx>
---
Changes in v2:
- Fixed if statement.

Changes in v3:
- Model names sorted alphabetically.

drivers/input/keyboard/cap11xx.c | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c
index 79afd0386e3f..ce27168302a8 100644
--- a/drivers/input/keyboard/cap11xx.c
+++ b/drivers/input/keyboard/cap11xx.c
@@ -98,14 +98,20 @@ enum {
CAP1106,
CAP1126,
CAP1188,
+ CAP1203,
CAP1206,
+ CAP1293,
+ CAP1298
};

static const struct cap11xx_hw_model cap11xx_devices[] = {
[CAP1106] = { .product_id = 0x55, .num_channels = 6, .num_leds = 0, .no_gain = false },
[CAP1126] = { .product_id = 0x53, .num_channels = 6, .num_leds = 2, .no_gain = false },
[CAP1188] = { .product_id = 0x50, .num_channels = 8, .num_leds = 8, .no_gain = false },
+ [CAP1203] = { .product_id = 0x6d, .num_channels = 3, .num_leds = 0, .no_gain = true },
[CAP1206] = { .product_id = 0x67, .num_channels = 6, .num_leds = 0, .no_gain = true },
+ [CAP1293] = { .product_id = 0x6f, .num_channels = 3, .num_leds = 0, .no_gain = false },
+ [CAP1298] = { .product_id = 0x71, .num_channels = 8, .num_leds = 0, .no_gain = false },
};

static const struct reg_default cap11xx_reg_defaults[] = {
@@ -377,7 +383,8 @@ static int cap11xx_i2c_probe(struct i2c_client *i2c_client)
if (error < 0)
return error;

- dev_info(dev, "CAP11XX detected, revision 0x%02x\n", rev);
+ dev_info(dev, "CAP11XX detected, model %s, revision 0x%02x\n",
+ id->name, rev);
node = dev->of_node;

if (!of_property_read_u32(node, "microchip,sensor-gain", &gain32)) {
@@ -390,7 +397,9 @@ static int cap11xx_i2c_probe(struct i2c_client *i2c_client)
dev_err(dev, "Invalid sensor-gain value %d\n", gain32);
}

- if (id->driver_data != CAP1206) {
+ if ((id->driver_data == CAP1106) ||
+ (id->driver_data == CAP1126) ||
+ (id->driver_data == CAP1188)) {
if (of_property_read_bool(node, "microchip,irq-active-high")) {
error = regmap_update_bits(priv->regmap,
CAP11XX_REG_CONFIG2,
@@ -483,7 +492,10 @@ static const struct of_device_id cap11xx_dt_ids[] = {
{ .compatible = "microchip,cap1106", },
{ .compatible = "microchip,cap1126", },
{ .compatible = "microchip,cap1188", },
+ { .compatible = "microchip,cap1203", },
{ .compatible = "microchip,cap1206", },
+ { .compatible = "microchip,cap1293", },
+ { .compatible = "microchip,cap1298", },
{}
};
MODULE_DEVICE_TABLE(of, cap11xx_dt_ids);
@@ -492,7 +504,10 @@ static const struct i2c_device_id cap11xx_i2c_ids[] = {
{ "cap1106", CAP1106 },
{ "cap1126", CAP1126 },
{ "cap1188", CAP1188 },
+ { "cap1203", CAP1203 },
{ "cap1206", CAP1206 },
+ { "cap1293", CAP1293 },
+ { "cap1298", CAP1298 },
{}
};
MODULE_DEVICE_TABLE(i2c, cap11xx_i2c_ids);
--
2.25.1