Add PHY driver for Multi-Protocol PHY present on Renesas R-Car X5H
R8A78000 SoC. Currently, the PHY driver only supports configuring
the MPPHY for ethernet operation.

Signed-off-by: Thanh Quan <thanh.quan.xn@renesas.com>
Signed-off-by: Phong Hoang <phong.hoang.wz@renesas.com>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> #Fix License-Identifier
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Clean up macros, indent, clock and reset handling in probe,
        rename the driver and add r8a78000- into compatible string,
	update commit message.]

Add support for the Ethernet Physical Coding Sublayer (PCS) controller
on R-Car Gen5 SoCs, specifically the Renesas R-Car X5H R8A78000.

The controller is based on the SERDES infrastructure used in previous
R-Car generations, with updates for Gen5 register layout and features.

Because majority of this driver is SoC-specific register programming,
the majority of this driver is different enough from R8A779F0 SerDes
driver to justify its own driver. Deduplication of the remaining bits
of code does not yield any improvement.

Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Phong Hoang <phong.hoang.wz@renesas.com>
Signed-off-by: Tam Nguyen <tam.nguyen.xa@renesas.com>
Signed-off-by: Thanh Quan <thanh.quan.xn@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Add missing clk_bulk_disable() in fail path.
        Drop always-true aneg_on setting.
	Reduce poll delay from 100s to 100ms.
	Use bulk reset operations to finalize reset handling.]

This patch adds SPL Kconfig option (SPL_PHY_IMX8MQ_USB) for the i.MX8MQ,
i.MX8MP, i.MX95, and i.MX94 USB3.0 PHY driver, allowing the driver to be
compiled and probed in SPL stage.

Signed-off-by: Alice Guo <alice.guo@nxp.com>

Import the init sequence for the UFS on SM7150.

Signed-off-by: Danila Tikhonov <danila@jiaxyga.com>
Signed-off-by: Jens Reidel <adrian@mainlining.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250831004602.699953-4-adrian@mainlining.org
Signed-off-by: Casey Connolly <kcxt@postmarketos.org>

The UFS on SM6350 can reuse the SDM845 configuration, just like in
Linux.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>

This PHY driver is required by USB_EHCI_MSM and not useful on its own.
Rather than have it be a prompted option, it should (and currently is)
select'd by USB_EHCI_MSM. Remove the prompt for this option and then
correct the dependency chain (it must select PHY).

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Casey Connolly <casey.connolly@linaro.org>
Link: https://lore.kernel.org/r/20251003203927.1030052-1-trini@konsulko.com
Signed-off-by: Casey Connolly <kcxt@postmarketos.org>

Move the SERDES configuration check after clock and reset initialization
and change it from a hard failure to a skip of WIZ initialization. This
allows the driver to probe successfully when the SERDES has been
pre-configured by a previous boot stage (e.g., ROM or SPL).

This approach aligns with how the Linux kernel handles pre-configured
SERDES, where the driver gracefully skips reinitialization rather than
failing to probe.

Signed-off-by: Hrushikesh Salunke <h-salunke@ti.com>

This driver cannot link without access to functions that are defined in
files that are only build on some platforms.  Express those requirements
in Kconfig as well.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Stefan Roese <stefan.roese@mailbox.org>

In case the PHY exit callback reports failure, reset init_count to 0 anyway,
so the next attempt at PHY initialization might try to reinitialize the PHY
and restore it to normal operation.

Signed-off-by: Marek Vasut <marek.vasut@mailbox.org>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>

Prepare v2025.10-rc4