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drm: bridge: it66121: Extend match support for OF tables

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The driver has OF match table, still it uses ID lookup table for
retrieving match data. Currently the driver is working on the
assumption that a I2C device registered via OF will always match a
legacy I2C device ID. The correct approach is to have an OF device ID
table using of_device_match_data() if the devices are registered via OF.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230818191817.340360-2-biju.das.jz@bp.renesas.com
This commit is contained in:
Biju Das 2023-08-18 20:18:16 +01:00 committed by Robert Foss
parent c3ba2ada13
commit c11c1a5057
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GPG key ID: 3EFD900F76D1D784
1 changed files with 11 additions and 8 deletions
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19
drivers/gpu/drm/bridge/ite-it66121.c
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@ -1523,7 +1523,10 @@ static int it66121_probe(struct i2c_client *client)
ctx->dev = dev;
ctx->client = client;
ctx->info = (const struct it66121_chip_info *) id->driver_data;
if (dev_fwnode(&client->dev))
ctx->info = of_device_get_match_data(&client->dev);
else
ctx->info = (const struct it66121_chip_info *) id->driver_data;
of_property_read_u32(ep, "bus-width", &ctx->bus_width);
of_node_put(ep);
@ -1609,13 +1612,6 @@ static void it66121_remove(struct i2c_client *client)
mutex_destroy(&ctx->lock);
}
static const struct of_device_id it66121_dt_match[] = {
{ .compatible = "ite,it66121" },
{ .compatible = "ite,it6610" },
{ }
};
MODULE_DEVICE_TABLE(of, it66121_dt_match);
static const struct it66121_chip_info it66121_chip_info = {
.id = ID_IT66121,
.vid = 0x4954,
@ -1628,6 +1624,13 @@ static const struct it66121_chip_info it6610_chip_info = {
.pid = 0x0611,
};
static const struct of_device_id it66121_dt_match[] = {
{ .compatible = "ite,it66121", &it66121_chip_info },
{ .compatible = "ite,it6610", &it6610_chip_info },
{ }
};
MODULE_DEVICE_TABLE(of, it66121_dt_match);
static const struct i2c_device_id it66121_id[] = {
{ "it66121", (kernel_ulong_t) &it66121_chip_info },
{ "it6610", (kernel_ulong_t) &it6610_chip_info },