mfd: cpcap: Add SPI device ID table

Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding a SPI device ID table.

Fixes: 96c8395e ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210924143347.14721-3-broonie@kernel.org

drivers/mfd/motorola-cpcap.c

@@ -202,6 +202,13 @@ static const struct of_device_id cpcap_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, cpcap_of_match);
 
+static const struct spi_device_id cpcap_spi_ids[] = {
+	{ .name = "cpcap", },
+	{ .name = "6556002", },
+	{},
+};
+MODULE_DEVICE_TABLE(spi, cpcap_spi_ids);
+
 static const struct regmap_config cpcap_regmap_config = {
 	.reg_bits = 16,
 	.reg_stride = 4,
@@ -342,6 +349,7 @@ static struct spi_driver cpcap_driver = {
 		.pm = &cpcap_pm,
 	},
 	.probe = cpcap_probe,
+	.id_table = cpcap_spi_ids,
 };
 module_spi_driver(cpcap_driver);