nvmem: rockchip-otp: Add support for RK3588

Add support for the OTP memory device found on the Rockchip RK3588 SoC.

While here, remove the unnecessary 'void *' casts in the OF device ID
table.

Co-developed-by: Finley Xiao <finley.xiao@rock-chips.com>
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Tested-by: Vincent Legoll <vincent.legoll@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Message-ID: <20230611140330.154222-14-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

nvmem: rockchip-otp: Improve probe error handling

Enhance error handling in the probe function by making use of
dev_err_probe(), which ensures the error code is always printed, in
addition to the specified error message.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Tested-by: Vincent Legoll <vincent.legoll@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Message-ID: <20230611140330.154222-13-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

nvmem: rockchip-otp: Use devm_reset_control_array_get_exclusive()

In preparation to support new Rockchip OTP memory devices having
specific reset configurations, switch devm_reset_control_get() to
devm_reset_control_array_get_exclusive().

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Tested-by: Vincent Legoll <vincent.legoll@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Message-ID: <20230611140330.154222-12-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

nvmem: rockchip-otp: Generalize rockchip_otp_wait_status()

In preparation to support additional Rockchip OTP memory devices with
different register layout, generalize rockchip_otp_wait_status() to
accept a new parameter for specifying the offset of the status register.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Tested-by: Vincent Legoll <vincent.legoll@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Message-ID: <20230611140330.154222-11-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

nvmem: rockchip-otp: Add clks and reg_read to rockchip_data

In preparation to support new Rockchip OTP memory devices with different
clock configurations and register layout, extend rockchip_data struct
with the related members: clks, num_clks, reg_read.

Additionally, to avoid managing redundant driver data, drop num_clks
member from rockchip_otp struct and update all references to point to
the equivalent member in rockchip_data.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Tested-by: Vincent Legoll <vincent.legoll@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Message-ID: <20230611140330.154222-10-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

nvmem: add Rockchip OTP driver

Newer Rockchip socs like the px30 use a different one-time-programmable
memory controller for things like cpu-id and leakage information,
so add the necessary driver for it.

Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
[ported from vendor 4.4, converted to clock-bulk API and cleanups]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20191029114240.14905-11-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>