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Input: goodix - push error logging up into i2c_read and i2c_write helpers

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Make the goodix_i2c_read() and goodix_i2c_write*() helpers log errors
themselves. This allows removing all the error logging from their callers.

This already results in a nice cleanup with the current code and it also
helps to make the upcoming support for controllers without flash cleaner.

Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210920150643.155872-5-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Hans de Goede 2021-09-20 21:08:35 -07:00 committed by Dmitry Torokhov
parent 209bda4741
commit 7642f29c73
1 changed files with 23 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
drivers/input/touchscreen/goodix.c
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@ -217,7 +217,13 @@ int goodix_i2c_read(struct i2c_client *client, u16 reg, u8 *buf, int len)
msgs[1].buf = buf;
ret = i2c_transfer(client->adapter, msgs, 2);
return ret < 0 ? ret : (ret != ARRAY_SIZE(msgs) ? -EIO : 0);
if (ret >= 0)
ret = (ret == ARRAY_SIZE(msgs) ? 0 : -EIO);
if (ret)
dev_err(&client->dev, "Error reading %d bytes from 0x%04x: %d\n",
len, reg, ret);
return ret;
}
/**
@ -248,8 +254,15 @@ int goodix_i2c_write(struct i2c_client *client, u16 reg, const u8 *buf, int len)
msg.len = len + 2;
ret = i2c_transfer(client->adapter, &msg, 1);
if (ret >= 0)
ret = (ret == 1 ? 0 : -EIO);
kfree(addr_buf);
return ret < 0 ? ret : (ret != 1 ? -EIO : 0);
if (ret)
dev_err(&client->dev, "Error writing %d bytes to 0x%04x: %d\n",
len, reg, ret);
return ret;
}
int goodix_i2c_write_u8(struct i2c_client *client, u16 reg, u8 value)
@ -291,11 +304,8 @@ static int goodix_ts_read_input_report(struct goodix_ts_data *ts, u8 *data)
do {
error = goodix_i2c_read(ts->client, addr, data,
header_contact_keycode_size);
if (error) {
dev_err(&ts->client->dev, "I2C transfer error: %d\n",
error);
if (error)
return error;
}
if (data[0] & GOODIX_BUFFER_STATUS_READY) {
touch_num = data[0] & 0x0f;
@ -418,9 +428,7 @@ static irqreturn_t goodix_ts_irq_handler(int irq, void *dev_id)
struct goodix_ts_data *ts = dev_id;
goodix_process_events(ts);
if (goodix_i2c_write_u8(ts->client, GOODIX_READ_COOR_ADDR, 0) < 0)
dev_err(&ts->client->dev, "I2C write end_cmd error\n");
goodix_i2c_write_u8(ts->client, GOODIX_READ_COOR_ADDR, 0);
return IRQ_HANDLED;
}
@ -545,11 +553,9 @@ int goodix_send_cfg(struct goodix_ts_data *ts, const u8 *cfg, int len)
return error;
error = goodix_i2c_write(ts->client, ts->chip->config_addr, cfg, len);
if (error) {
dev_err(&ts->client->dev, "Failed to write config data: %d",
error);
if (error)
return error;
}
dev_dbg(&ts->client->dev, "Config sent successfully.");
/* Let the firmware reconfigure itself, so sleep for 10ms */
@ -937,8 +943,6 @@ static void goodix_read_config(struct goodix_ts_data *ts)
error = goodix_i2c_read(ts->client, ts->chip->config_addr,
ts->config, ts->chip->config_len);
if (error) {
dev_warn(&ts->client->dev, "Error reading config: %d\n",
error);
ts->int_trigger_type = GOODIX_INT_TRIGGER;
ts->max_touch_num = GOODIX_MAX_CONTACTS;
return;
@ -969,10 +973,8 @@ static int goodix_read_version(struct goodix_ts_data *ts)
char id_str[GOODIX_ID_MAX_LEN + 1];
error = goodix_i2c_read(ts->client, GOODIX_REG_ID, buf, sizeof(buf));
if (error) {
dev_err(&ts->client->dev, "read version failed: %d\n", error);
if (error)
return error;
}
memcpy(id_str, buf, GOODIX_ID_MAX_LEN);
id_str[GOODIX_ID_MAX_LEN] = 0;
@ -998,13 +1000,10 @@ static int goodix_i2c_test(struct i2c_client *client)
u8 test;
while (retry++ < 2) {
error = goodix_i2c_read(client, GOODIX_REG_ID,
&test, 1);
error = goodix_i2c_read(client, GOODIX_REG_ID, &test, 1);
if (!error)
return 0;
dev_err(&client->dev, "i2c test failed attempt %d: %d\n",
retry, error);
msleep(20);
}
@ -1232,10 +1231,8 @@ reset:
}
error = goodix_read_version(ts);
if (error) {
dev_err(&client->dev, "Read version failed.\n");
if (error)
return error;
}
ts->chip = goodix_get_chip_data(ts->id);
@ -1306,7 +1303,6 @@ static int __maybe_unused goodix_suspend(struct device *dev)
error = goodix_i2c_write_u8(ts->client, GOODIX_REG_COMMAND,
GOODIX_CMD_SCREEN_OFF);
if (error) {
dev_err(&ts->client->dev, "Screen off command failed\n");
goodix_irq_direction_input(ts);
goodix_request_irq(ts);
return -EAGAIN;
@ -1349,10 +1345,7 @@ static int __maybe_unused goodix_resume(struct device *dev)
error = goodix_i2c_read(ts->client, ts->chip->config_addr,
&config_ver, 1);
if (error)
dev_warn(dev, "Error reading config version: %d, resetting controller\n",
error);
else if (config_ver != ts->config[0])
if (!error && config_ver != ts->config[0])
dev_info(dev, "Config version mismatch %d != %d, resetting controller\n",
config_ver, ts->config[0]);