[PATCH v3 2/3] nvmem: lan9662-otp: add support for LAN969x

[Robert Marko]

From: Horatiu Vultur <horatiu.vultur at microchip.com>

Microchip LAN969x provides OTP with the same control logic, only the size
differs as LAN969x has 16KB of OTP instead of 8KB like on LAN966x.

Signed-off-by: Horatiu Vultur <horatiu.vultur at microchip.com>
Signed-off-by: Robert Marko <robert.marko at sartura.hr>
---
Changes in v3:
* Rebase onto current next-20260508

 drivers/nvmem/Kconfig        |  2 +-
 drivers/nvmem/lan9662-otpc.c | 12 +++++++++---
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig
index 74ddbd0f79b0..78b648e14727 100644
--- a/drivers/nvmem/Kconfig
+++ b/drivers/nvmem/Kconfig
@@ -138,7 +138,7 @@ config NVMEM_JZ4780_EFUSE
 
 config NVMEM_LAN9662_OTPC
 	tristate "Microchip LAN9662 OTP controller support"
-	depends on SOC_LAN966 || COMPILE_TEST
+	depends on SOC_LAN966 || ARCH_LAN969X || COMPILE_TEST
 	depends on HAS_IOMEM
 	help
 	  This driver enables the OTP controller available on Microchip LAN9662
diff --git a/drivers/nvmem/lan9662-otpc.c b/drivers/nvmem/lan9662-otpc.c
index 56fc19f092a7..62d1d6381bf8 100644
--- a/drivers/nvmem/lan9662-otpc.c
+++ b/drivers/nvmem/lan9662-otpc.c
@@ -27,7 +27,6 @@
 #define OTP_OTP_STATUS_OTP_CPUMPEN		BIT(1)
 #define OTP_OTP_STATUS_OTP_BUSY			BIT(0)
 
-#define OTP_MEM_SIZE 8192
 #define OTP_SLEEP_US 10
 #define OTP_TIMEOUT_US 500000
 
@@ -176,7 +175,6 @@ static struct nvmem_config otp_config = {
 	.word_size = 1,
 	.reg_read = lan9662_otp_read,
 	.reg_write = lan9662_otp_write,
-	.size = OTP_MEM_SIZE,
 };
 
 static int lan9662_otp_probe(struct platform_device *pdev)
@@ -196,6 +194,7 @@ static int lan9662_otp_probe(struct platform_device *pdev)
 
 	otp_config.priv = otp;
 	otp_config.dev = dev;
+	otp_config.size = (uintptr_t) device_get_match_data(dev);
 
 	nvmem = devm_nvmem_register(dev, &otp_config);
 
@@ -203,7 +202,14 @@ static int lan9662_otp_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id lan9662_otp_match[] = {
-	{ .compatible = "microchip,lan9662-otpc", },
+	{
+		.compatible = "microchip,lan9662-otpc",
+		.data = (const void *) SZ_8K,
+	},
+	{
+		.compatible = "microchip,lan9691-otpc",
+		.data = (const void *) SZ_16K,
+	},
 	{ },
 };
 MODULE_DEVICE_TABLE(of, lan9662_otp_match);
-- 
2.54.0