| From a1a466eaa5627b89097a3f7f08479788e728cb4c Mon Sep 17 00:00:00 2001 |
| From: Danny Kaehn <danny.kaehn@plexus.com> |
| Date: Wed, 5 Jun 2024 18:12:47 -0500 |
| Subject: [PATCH] HID: cp2112: Configure I2C Bus Speed from Firmware |
| |
| Now that the I2C adapter on the CP2112 can have an associated firmware |
| node, set the bus speed based on firmware configuration |
| |
| Signed-off-by: Danny Kaehn <danny.kaehn@plexus.com> |
| --- |
| drivers/hid/hid-cp2112.c | 4 ++++ |
| 1 file changed, 4 insertions(+) |
| |
| diff --git a/drivers/hid/hid-cp2112.c b/drivers/hid/hid-cp2112.c |
| index ff86fece2064..4900aa03ef47 100644 |
| --- a/drivers/hid/hid-cp2112.c |
| +++ b/drivers/hid/hid-cp2112.c |
| @@ -1210,6 +1210,7 @@ static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id) |
| struct cp2112_smbus_config_report config; |
| struct fwnode_handle *child; |
| struct gpio_irq_chip *girq; |
| + struct i2c_timings timings; |
| const char *name; |
| u32 addr; |
| int ret; |
| @@ -1290,6 +1291,9 @@ static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id) |
| goto err_power_normal; |
| } |
| |
| + i2c_parse_fw_timings(&dev->adap.dev, &timings, true); |
| + |
| + config.clock_speed = cpu_to_be32(timings.bus_freq_hz); |
| config.retry_time = cpu_to_be16(1); |
| |
| ret = cp2112_hid_output(hdev, (u8 *)&config, sizeof(config), |
| -- |
| 2.52.0.313.g674ac2bdf7-goog |
| |
