nvmem: rockchip-otp: Add support for RK3528

Add support for the OTP controller in RK3528. The OTPC is similar to the
OTPC in RK3562 and RK3568, exept for a missing phy clock and reset.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Srinivas Kandagatla <srini@kernel.org>
Link: https://patch.msgid.link/20260327131751.3026030-10-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/nvmem/rockchip-otp.c b/drivers/nvmem/rockchip-otp.c
index 62ce22d72586f1fe964d1684de00bd5e3e54e9f8..0ec78b5e19e7d88de639152a36ac8b46231146f7 100644 (file)
--- a/drivers/nvmem/rockchip-otp.c
+++ b/drivers/nvmem/rockchip-otp.c
@@ -333,6 +333,18 @@ static const struct rockchip_data px30_data = {
        .reg_read = px30_otp_read,
 };
 
+static const char * const rk3528_otp_clocks[] = {
+       "otp", "apb_pclk", "sbpi",
+};
+
+static const struct rockchip_data rk3528_data = {
+       .size = 0x80,
+       .word_size = sizeof(u16),
+       .clks = rk3528_otp_clocks,
+       .num_clks = ARRAY_SIZE(rk3528_otp_clocks),
+       .reg_read = rk3568_otp_read,
+};
+
 static const char * const rk3568_otp_clocks[] = {
        "otp", "apb_pclk", "phy", "sbpi",
 };
@@ -376,6 +388,10 @@ static const struct of_device_id rockchip_otp_match[] = {
                .compatible = "rockchip,rk3308-otp",
                .data = &px30_data,
        },
+       {
+               .compatible = "rockchip,rk3528-otp",
+               .data = &rk3528_data,
+       },
        {
                .compatible = "rockchip,rk3562-otp",
                .data = &rk3568_data,