From: Matthew Bystrin <dev.mbstr@gmail.com>

[ Upstream commit d18fd55c780c2bae3d353024cab7f8746d3d9e91 ]

Add compatible string, i2c_devcie_id and spi_devcie_id to support
8a34002.

Signed-off-by: Matthew Bystrin <dev.mbstr@gmail.com>
Link: https://patch.msgid.link/20260429072047.1111427-3-dev.mbstr@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

LLM Generated explanations, may be completely bogus:

The background `git log --grep` searches finished with no matches — this
tree (6.18.44) doesn't have the `8a34002` commit yet, which matches the
earlier finding that only the DT binding lists it while the driver ID
tables do not.

That supports the **YES** backport recommendation: it's a small device-
ID addition to the existing `rsmu` driver, and the patch should apply
cleanly here.

 drivers/mfd/rsmu_i2c.c | 2 ++
 drivers/mfd/rsmu_spi.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/mfd/rsmu_i2c.c b/drivers/mfd/rsmu_i2c.c
index 9e5fc8259eec2..c57795ed20f4e 100644
--- a/drivers/mfd/rsmu_i2c.c
+++ b/drivers/mfd/rsmu_i2c.c
@@ -330,6 +330,7 @@ static void rsmu_i2c_remove(struct i2c_client *client)
 static const struct i2c_device_id rsmu_i2c_id[] = {
 	{ "8a34000",  RSMU_CM },
 	{ "8a34001",  RSMU_CM },
+	{ "8a34002",  RSMU_CM },
 	{ "82p33810", RSMU_SABRE },
 	{ "82p33811", RSMU_SABRE },
 	{ "8v19n850", RSMU_SL },
@@ -341,6 +342,7 @@ MODULE_DEVICE_TABLE(i2c, rsmu_i2c_id);
 static const struct of_device_id rsmu_i2c_of_match[] = {
 	{ .compatible = "idt,8a34000",  .data = (void *)RSMU_CM },
 	{ .compatible = "idt,8a34001",  .data = (void *)RSMU_CM },
+	{ .compatible = "idt,8a34002",  .data = (void *)RSMU_CM },
 	{ .compatible = "idt,82p33810", .data = (void *)RSMU_SABRE },
 	{ .compatible = "idt,82p33811", .data = (void *)RSMU_SABRE },
 	{ .compatible = "idt,8v19n850", .data = (void *)RSMU_SL },
diff --git a/drivers/mfd/rsmu_spi.c b/drivers/mfd/rsmu_spi.c
index c931d8cea0a1a..e07f21482439e 100644
--- a/drivers/mfd/rsmu_spi.c
+++ b/drivers/mfd/rsmu_spi.c
@@ -241,6 +241,7 @@ static void rsmu_spi_remove(struct spi_device *client)
 static const struct spi_device_id rsmu_spi_id[] = {
 	{ "8a34000",  RSMU_CM },
 	{ "8a34001",  RSMU_CM },
+	{ "8a34002",  RSMU_CM },
 	{ "82p33810", RSMU_SABRE },
 	{ "82p33811", RSMU_SABRE },
 	{}
@@ -250,6 +251,7 @@ MODULE_DEVICE_TABLE(spi, rsmu_spi_id);
 static const struct of_device_id rsmu_spi_of_match[] = {
 	{ .compatible = "idt,8a34000",  .data = (void *)RSMU_CM },
 	{ .compatible = "idt,8a34001",  .data = (void *)RSMU_CM },
+	{ .compatible = "idt,8a34002",  .data = (void *)RSMU_CM },
 	{ .compatible = "idt,82p33810", .data = (void *)RSMU_SABRE },
 	{ .compatible = "idt,82p33811", .data = (void *)RSMU_SABRE },
 	{}
-- 
2.53.0