Implements renaming from "physical" to "transport", as described in part 00/05
of this patch set.
Signed-off-by: Christopher Heiny <cheiny@xxxxxxxxxxxxx>
Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxxxxxx>
Cc: Joeri de Gram <j.de.gram@xxxxxxxxx>
Acked-by: Jean Delvare <khali@xxxxxxxxxxxx>
---
drivers/input/rmi4/rmi_i2c.c | 133 ++++++++++++++++++++-----------------------
1 file changed, 62 insertions(+), 71 deletions(-)
diff --git a/drivers/input/rmi4/rmi_i2c.c b/drivers/input/rmi4/rmi_i2c.c
index f3bef04..4299a60 100644
--- a/drivers/input/rmi4/rmi_i2c.c
+++ b/drivers/input/rmi4/rmi_i2c.c
@@ -28,7 +28,7 @@
*
* @page_mutex: Locks current page to avoid changing pages in unexpected ways.
* @page: Keeps track of the current virtual page
- * @phys: Pointer to the physical interface
+ * @xport: Pointer to the transport interface
*
* @tx_buf: Buffer used for transmitting data to the sensor over i2c.
* @tx_buf_size: Size of the buffer
@@ -37,11 +37,12 @@
*
* @comms_debug: Latest data read/written for debugging I2C communications
* @debugfs_comms: Debugfs file for debugging I2C communications
+ *
*/
struct rmi_i2c_data {
struct mutex page_mutex;
int page;
- struct rmi_phys_device *phys;
+ struct rmi_transport_device *xport;
u8 *tx_buf;
int tx_buf_size;
@@ -64,8 +65,7 @@ static int setup_debugfs(struct rmi_device *rmi_dev, struct rmi_i2c_data *data)
data->debugfs_comms = debugfs_create_bool("comms_debug", RMI_RW_ATTR,
rmi_dev->debugfs_root, &data->comms_debug);
if (!data->debugfs_comms || IS_ERR(data->debugfs_comms)) {
- dev_warn(&rmi_dev->dev,
- "Failed to create debugfs comms_debug.\n");
+ dev_warn(&rmi_dev->dev, "Failed to create debugfs comms_debug.\n");
data->debugfs_comms = NULL;
}
@@ -77,19 +77,9 @@ static void teardown_debugfs(struct rmi_i2c_data *data)
if (data->debugfs_comms)
debugfs_remove(data->debugfs_comms);
}
-
#else
-
-static inline int setup_debugfs(struct rmi_device *rmi_dev,
- struct rmi_i2c_data *data)
-{
- return 0;
-}
-
-static inline void teardown_debugfs(struct rmi_i2c_data *data)
-{
-}
-
+#define setup_debugfs(rmi_dev, data) 0
+#define teardown_debugfs(data)
#endif
#define COMMS_DEBUG(data) (IS_ENABLED(CONFIG_RMI4_DEBUG) && data->comms_debug)
@@ -97,14 +87,14 @@ static inline void teardown_debugfs(struct rmi_i2c_data *data)
#define RMI_PAGE_SELECT_REGISTER 0xff
#define RMI_I2C_PAGE(addr) (((addr) >> 8) & 0xff)
-static char *phys_proto_name = "i2c";
+static char *transport_protocol_name = "i2c";
/*
* rmi_set_page - Set RMI page
- * @phys: The pointer to the rmi_phys_device struct
+ * @xport: The pointer to the rmi_transport_device struct
* @page: The new page address.
*
- * RMI devices have 16-bit addressing, but some of the physical
+ * RMI devices have 16-bit addressing, but some of the transport
* implementations (like SMBus) only have 8-bit addressing. So RMI implements
* a page address at 0xff of every page so we can reliable page addresses
* every 256 registers.
@@ -113,21 +103,21 @@ static char *phys_proto_name = "i2c";
*
* Returns zero on success, non-zero on failure.
*/
-static int rmi_set_page(struct rmi_phys_device *phys, u8 page)
+static int rmi_set_page(struct rmi_transport_device *xport, u8 page)
{
- struct i2c_client *client = to_i2c_client(phys->dev);
- struct rmi_i2c_data *data = phys->data;
+ struct i2c_client *client = to_i2c_client(xport->dev);
+ struct rmi_i2c_data *data = xport->data;
u8 txbuf[2] = {RMI_PAGE_SELECT_REGISTER, page};
int retval;
if (COMMS_DEBUG(data))
dev_dbg(&client->dev, "writes 3 bytes: %02x %02x\n",
txbuf[0], txbuf[1]);
- phys->info.tx_count++;
- phys->info.tx_bytes += sizeof(txbuf);
+ xport->info.tx_count++;
+ xport->info.tx_bytes += sizeof(txbuf);
retval = i2c_master_send(client, txbuf, sizeof(txbuf));
if (retval != sizeof(txbuf)) {
- phys->info.tx_errs++;
+ xport->info.tx_errs++;
dev_err(&client->dev,
"%s: set page failed: %d.", __func__, retval);
return (retval < 0) ? retval : -EIO;
@@ -157,18 +147,18 @@ static int copy_to_debug_buf(struct device *dev, struct rmi_i2c_data *data,
temp = data->debug_buf;
for (i = 0; i < len; i++) {
- n = sprintf(temp, " %02x", buf[i]);
+ n = snprintf(temp, 3, " %02x", buf[i]);
temp += n;
}
return 0;
}
-static int rmi_i2c_write_block(struct rmi_phys_device *phys, u16 addr,
+static int rmi_i2c_write_block(struct rmi_transport_device *xport, u16 addr,
const void *buf, const int len)
{
- struct i2c_client *client = to_i2c_client(phys->dev);
- struct rmi_i2c_data *data = phys->data;
+ struct i2c_client *client = to_i2c_client(xport->dev);
+ struct rmi_i2c_data *data = xport->data;
int retval;
int tx_size = len + 1;
@@ -190,7 +180,7 @@ static int rmi_i2c_write_block(struct rmi_phys_device *phys, u16 addr,
memcpy(data->tx_buf + 1, buf, len);
if (RMI_I2C_PAGE(addr) != data->page) {
- retval = rmi_set_page(phys, RMI_I2C_PAGE(addr));
+ retval = rmi_set_page(xport, RMI_I2C_PAGE(addr));
if (retval < 0)
goto exit;
}
@@ -202,11 +192,11 @@ static int rmi_i2c_write_block(struct rmi_phys_device *phys, u16 addr,
len, addr, data->debug_buf);
}
- phys->info.tx_count++;
- phys->info.tx_bytes += tx_size;
+ xport->info.tx_count++;
+ xport->info.tx_bytes += tx_size;
retval = i2c_master_send(client, data->tx_buf, tx_size);
if (retval < 0)
- phys->info.tx_errs++;
+ xport->info.tx_errs++;
else
retval--; /* don't count the address byte */
@@ -216,18 +206,18 @@ exit:
}
-static int rmi_i2c_read_block(struct rmi_phys_device *phys, u16 addr,
+static int rmi_i2c_read_block(struct rmi_transport_device *xport, u16 addr,
void *buf, const int len)
{
- struct i2c_client *client = to_i2c_client(phys->dev);
- struct rmi_i2c_data *data = phys->data;
+ struct i2c_client *client = to_i2c_client(xport->dev);
+ struct rmi_i2c_data *data = xport->data;
u8 txbuf[1] = {addr & 0xff};
int retval;
mutex_lock(&data->page_mutex);
if (RMI_I2C_PAGE(addr) != data->page) {
- retval = rmi_set_page(phys, RMI_I2C_PAGE(addr));
+ retval = rmi_set_page(xport, RMI_I2C_PAGE(addr));
if (retval < 0)
goto exit;
}
@@ -235,21 +225,21 @@ static int rmi_i2c_read_block(struct rmi_phys_device *phys, u16 addr,
if (COMMS_DEBUG(data))
dev_dbg(&client->dev, "writes 1 bytes: %02x\n", txbuf[0]);
- phys->info.tx_count++;
- phys->info.tx_bytes += sizeof(txbuf);
+ xport->info.tx_count++;
+ xport->info.tx_bytes += sizeof(txbuf);
retval = i2c_master_send(client, txbuf, sizeof(txbuf));
if (retval != sizeof(txbuf)) {
- phys->info.tx_errs++;
+ xport->info.tx_errs++;
retval = (retval < 0) ? retval : -EIO;
goto exit;
}
retval = i2c_master_recv(client, (u8 *) buf, len);
- phys->info.rx_count++;
- phys->info.rx_bytes += len;
+ xport->info.rx_count++;
+ xport->info.rx_bytes += len;
if (retval < 0)
- phys->info.rx_errs++;
+ xport->info.rx_errs++;
else if (COMMS_DEBUG(data)) {
int rc = copy_to_debug_buf(&client->dev, data, (u8 *) buf, len);
if (!rc)
@@ -263,9 +253,9 @@ exit:
}
static int rmi_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+ const struct i2c_device_id *id)
{
- struct rmi_phys_device *rmi_phys;
+ struct rmi_transport_device *rmi_transport;
struct rmi_i2c_data *data;
struct rmi_device_platform_data *pdata = client->dev.platform_data;
int retval;
@@ -274,32 +264,33 @@ static int rmi_i2c_probe(struct i2c_client *client,
dev_err(&client->dev, "no platform data\n");
return -EINVAL;
}
- dev_info(&client->dev, "Probing %s at %#02x (IRQ %d).\n",
+ dev_dbg(&client->dev, "Probing %s at %#02x (GPIO %d).\n",
pdata->sensor_name ? pdata->sensor_name : "-no name-",
client->addr, pdata->attn_gpio);
+ retval = i2c_check_functionality(client->adapter, I2C_FUNC_I2C);
+ if (!retval) {
+ dev_err(&client->dev, "i2c_check_functionality error %d.\n",
+ retval);
+ return retval;
+ }
+
if (pdata->gpio_config) {
- dev_dbg(&client->dev, "Configuring GPIOs.\n");
retval = pdata->gpio_config(pdata->gpio_data, true);
if (retval < 0) {
dev_err(&client->dev, "Failed to configure GPIOs, code: %d.\n",
retval);
return retval;
}
+ msleep(pdata->reset_delay_ms ?
+ pdata->reset_delay_ms : DEFAULT_RESET_DELAY_MS);
dev_info(&client->dev, "Done with GPIO configuration.\n");
}
- retval = i2c_check_functionality(client->adapter, I2C_FUNC_I2C);
- if (!retval) {
- dev_err(&client->dev, "i2c_check_functionality error %d.\n",
- retval);
- return retval;
- }
-
- rmi_phys = devm_kzalloc(&client->dev, sizeof(struct rmi_phys_device),
- GFP_KERNEL);
+ rmi_transport = devm_kzalloc(&client->dev,
+ sizeof(struct rmi_transport_device), GFP_KERNEL);
- if (!rmi_phys)
+ if (!rmi_transport)
return -ENOMEM;
data = devm_kzalloc(&client->dev, sizeof(struct rmi_i2c_data),
@@ -307,35 +298,35 @@ static int rmi_i2c_probe(struct i2c_client *client,
if (!data)
return -ENOMEM;
- data->phys = rmi_phys;
+ data->xport = rmi_transport;
- rmi_phys->data = data;
- rmi_phys->dev = &client->dev;
+ rmi_transport->data = data;
+ rmi_transport->dev = &client->dev;
- rmi_phys->write_block = rmi_i2c_write_block;
- rmi_phys->read_block = rmi_i2c_read_block;
- rmi_phys->info.proto = phys_proto_name;
+ rmi_transport->write_block = rmi_i2c_write_block;
+ rmi_transport->read_block = rmi_i2c_read_block;
+ rmi_transport->info.proto = transport_protocol_name;
mutex_init(&data->page_mutex);
/* Setting the page to zero will (a) make sure the PSR is in a
* known state, and (b) make sure we can talk to the device.
*/
- retval = rmi_set_page(rmi_phys, 0);
+ retval = rmi_set_page(rmi_transport, 0);
if (retval) {
dev_err(&client->dev, "Failed to set page select to 0.\n");
return retval;
}
- retval = rmi_register_physical_device(rmi_phys);
+ retval = rmi_register_transport_device(rmi_transport);
if (retval) {
- dev_err(&client->dev, "Failed to register physical driver at 0x%.2X.\n",
+ dev_err(&client->dev, "Failed to register transport at 0x%.2X.\n",
client->addr);
goto err_gpio;
}
- i2c_set_clientdata(client, rmi_phys);
+ i2c_set_clientdata(client, rmi_transport);
- retval = setup_debugfs(rmi_phys->rmi_dev, data);
+ retval = setup_debugfs(rmi_transport->rmi_dev, data);
if (retval < 0)
dev_warn(&client->dev, "Failed to setup debugfs. Code: %d.\n",
retval);
@@ -352,12 +343,12 @@ err_gpio:
static int rmi_i2c_remove(struct i2c_client *client)
{
- struct rmi_phys_device *phys = i2c_get_clientdata(client);
+ struct rmi_transport_device *xport = i2c_get_clientdata(client);
struct rmi_device_platform_data *pd = client->dev.platform_data;
- teardown_debugfs(phys->data);
+ teardown_debugfs(xport->data);
- rmi_unregister_physical_device(phys);
+ rmi_unregister_transport_device(xport);
if (pd->gpio_config)
pd->gpio_config(&pd->gpio_data, false);
--
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