Commit 9f36fdfc authored by Sven Peter's avatar Sven Peter Committed by Greg Kroah-Hartman
Browse files

usb: typec: tipd: Add cd321x struct with separate size 



We're about to add more fields to struct tps6598x which are only relevant
for Apple's CD321x and to ensure that we don't waste memory everywhere for
those add a separate struct for cd321x and prepare to allocate more space
inside probe.

Reviewed-by: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: default avatarNeal Gompa <neal@gompa.dev>
Signed-off-by: default avatarSven Peter <sven@kernel.org>
Link: https://lore.kernel.org/r/20250914-apple-usb3-tipd-v1-5-4e99c8649024@kernel.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 60e1ff66

drivers/usb/typec/tipd/core.c

+15 −5
Original line number Diff line number Diff line
@@ -113,6 +113,7 @@ struct tps6598x; 
struct tipd_data {

	irq_handler_t irq_handler;

	u64 irq_mask1;

	size_t tps_struct_size;

	int (*register_port)(struct tps6598x *tps, struct fwnode_handle *node);

	void (*trace_data_status)(u32 status);

	void (*trace_power_status)(u16 status);
@@ -148,6 +149,10 @@ struct tps6598x { 
	const struct tipd_data *data;

};



struct cd321x {

	struct tps6598x tps;

};



static enum power_supply_property tps6598x_psy_props[] = {

	POWER_SUPPLY_PROP_USB_TYPE,

	POWER_SUPPLY_PROP_ONLINE,
@@ -1297,18 +1302,24 @@ tps25750_register_port(struct tps6598x *tps, struct fwnode_handle *fwnode) 


static int tps6598x_probe(struct i2c_client *client)

{

	const struct tipd_data *data;

	struct tps6598x *tps;

	struct fwnode_handle *fwnode;

	u32 status;

	u32 vid;

	int ret;



	tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);

	data = i2c_get_match_data(client);

	if (!data)

		return -EINVAL;



	tps = devm_kzalloc(&client->dev, data->tps_struct_size, GFP_KERNEL);

	if (!tps)

		return -ENOMEM;



	mutex_init(&tps->lock);

	tps->dev = &client->dev;

	tps->data = data;



	tps->reset = devm_gpiod_get_optional(tps->dev, "reset", GPIOD_OUT_LOW);

	if (IS_ERR(tps->reset))
@@ -1334,10 +1345,6 @@ static int tps6598x_probe(struct i2c_client *client) 
	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C))

		tps->i2c_protocol = true;



	tps->data = i2c_get_match_data(client);

	if (!tps->data)

		return -EINVAL;



	if (tps->data->switch_power_state) {

		ret = tps->data->switch_power_state(tps, TPS_SYSTEM_POWER_STATE_S0);

		if (ret)
@@ -1521,6 +1528,7 @@ static const struct tipd_data cd321x_data = { 
	.irq_mask1 = APPLE_CD_REG_INT_POWER_STATUS_UPDATE |

		     APPLE_CD_REG_INT_DATA_STATUS_UPDATE |

		     APPLE_CD_REG_INT_PLUG_EVENT,

	.tps_struct_size = sizeof(struct cd321x),

	.register_port = tps6598x_register_port,

	.trace_data_status = trace_cd321x_data_status,

	.trace_power_status = trace_tps6598x_power_status,
@@ -1535,6 +1543,7 @@ static const struct tipd_data tps6598x_data = { 
	.irq_mask1 = TPS_REG_INT_POWER_STATUS_UPDATE |

		     TPS_REG_INT_DATA_STATUS_UPDATE |

		     TPS_REG_INT_PLUG_EVENT,

	.tps_struct_size = sizeof(struct tps6598x),

	.register_port = tps6598x_register_port,

	.trace_data_status = trace_tps6598x_data_status,

	.trace_power_status = trace_tps6598x_power_status,
@@ -1549,6 +1558,7 @@ static const struct tipd_data tps25750_data = { 
	.irq_mask1 = TPS_REG_INT_POWER_STATUS_UPDATE |

		     TPS_REG_INT_DATA_STATUS_UPDATE |

		     TPS_REG_INT_PLUG_EVENT,

	.tps_struct_size = sizeof(struct tps6598x),

	.register_port = tps25750_register_port,

	.trace_data_status = trace_tps6598x_data_status,

	.trace_power_status = trace_tps25750_power_status,