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

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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: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Sven Peter <sven@kernel.org>
Link: https://lore.kernel.org/r/20250914-apple-usb3-tipd-v1-5-4e99c8649024@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sven Peter 2025-09-14 12:56:10 +00:00 committed by Greg Kroah-Hartman
parent 60e1ff6617
commit 9f36fdfcf3
1 changed files with 15 additions and 5 deletions
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20
drivers/usb/typec/tipd/core.c
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@ -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,