[PATCH v2 3/3] usb: typec: ucsi: acpi: move LG Gram quirk to ucsi_gram_sync_control()

From: Dmitry Baryshkov
Date: Mon Jan 20 2025 - 04:17:34 EST


It is easier to keep all command-specific quirks in a single place. Move
them to ucsi_gram_sync_control() as the code now allows us to return
modified messages data.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/usb/typec/ucsi/ucsi_acpi.c | 30 +++++++++---------------------
1 file changed, 9 insertions(+), 21 deletions(-)

diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c
index 8b02082201ec5b85031472563b8b8d1eea6134de..ada5d0d21ee6fb1f406b6a8b8466bc71ffdb5b46 100644
--- a/drivers/usb/typec/ucsi/ucsi_acpi.c
+++ b/drivers/usb/typec/ucsi/ucsi_acpi.c
@@ -99,17 +99,23 @@ static const struct ucsi_operations ucsi_acpi_ops = {
.async_control = ucsi_acpi_async_control
};

-static int ucsi_gram_read_message_in(struct ucsi *ucsi, void *val, size_t val_len)
+static int ucsi_gram_sync_control(struct ucsi *ucsi, u64 command, u32 *cci,
+ void *val, size_t len)
{
u16 bogus_change = UCSI_CONSTAT_POWER_LEVEL_CHANGE |
UCSI_CONSTAT_PDOS_CHANGE;
struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi);
int ret;

- ret = ucsi_acpi_read_message_in(ucsi, val, val_len);
+ ret = ucsi_sync_control_common(ucsi, command, cci, val, len);
if (ret < 0)
return ret;

+ if (UCSI_COMMAND(ua->cmd) == UCSI_GET_PDOS &&
+ ua->cmd & UCSI_GET_PDOS_PARTNER_PDO(1) &&
+ ua->cmd & UCSI_GET_PDOS_SRC_PDOS)
+ ua->check_bogus_event = true;
+
if (UCSI_COMMAND(ua->cmd) == UCSI_GET_CONNECTOR_STATUS &&
ua->check_bogus_event) {
/* Clear the bogus change */
@@ -122,28 +128,10 @@ static int ucsi_gram_read_message_in(struct ucsi *ucsi, void *val, size_t val_le
return ret;
}

-static int ucsi_gram_sync_control(struct ucsi *ucsi, u64 command, u32 *cci,
- void *data, size_t size)
-{
- struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi);
- int ret;
-
- ret = ucsi_sync_control_common(ucsi, command, cci, data, size);
- if (ret < 0)
- return ret;
-
- if (UCSI_COMMAND(ua->cmd) == UCSI_GET_PDOS &&
- ua->cmd & UCSI_GET_PDOS_PARTNER_PDO(1) &&
- ua->cmd & UCSI_GET_PDOS_SRC_PDOS)
- ua->check_bogus_event = true;
-
- return ret;
-}
-
static const struct ucsi_operations ucsi_gram_ops = {
.read_version = ucsi_acpi_read_version,
.read_cci = ucsi_acpi_read_cci,
- .read_message_in = ucsi_gram_read_message_in,
+ .read_message_in = ucsi_acpi_read_message_in,
.sync_control = ucsi_gram_sync_control,
.async_control = ucsi_acpi_async_control
};

--
2.39.5