[PATCH RESEND v4 0/2] Add support for Exynos9810 SoC and Samsung Galaxy S9 (SM-G960F)

[Markuss Broks <markuss.broks@gmail.com>]

Hello,

This series adds initial SoC support for the Samsung Exynos 9810
SoC and initial board support for Samsung Galaxy S9 phone (SM-G960F),
codenamed starlte.

The Exynos 9810 SoC is also used in S9 Plus (star2lte), Note 9 (crownlte),
and perhaps more devices. Currently only Galaxy S9 DTS file is added but it
should be fairly simple to add support for other devices based on this SoC,
considering they're quite similar.

The support added in this series includes:
- cpus
- pinctrl and gpio
- simple-framebuffer

This is enough to boot to a minimal initramfs shell.

The preferred way to boot this device is by using a small shim bl called
uniLoader [1], which packages the mainline kernel and DT and jumps to
the kernel. This is done in order to work around some issues caused by
the stock, and non-replacable Samsung S-Boot bootloader. For example,
S-Boot leaves the decon trigger control unset, which causes the framebuffer
to not refresh, so simple-framebuffer wouldn't work without a secondary loader.
Ideally, there'll be a kernel driver for the display subsystem some day to
resolve this issue.

[1] https://github.com/ivoszbg/uniLoader

Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
---
Changes in v4 RESEND:
- dropped applied patches
- Link to v4: https://lore.kernel.org/r/20241028-exynos9810-v4-0-6191f9d0c0f1@gmail.com

Changes in v4:
- make DTS build again [typo, misplaced ;] (krzk)
- lowercase hex in pinctrl (ivo)
- removed the perf patchset from dependencies (krzk)
- Link to v3: https://lore.kernel.org/r/20241026-exynos9810-v3-0-b89de9441ea8@gmail.com

Changes in v3:
- fix a blank line between tags (krzk)
- align with the opening " in eint-controller (krzk)
- sort the memory node (ivo)
- drop the \n (ivo)
- drop the perf patches into separate series (krzk)
- elaborate a bit more on dt-bindings (krzk)
- Link to v2: https://lore.kernel.org/r/20241025-exynos9810-v2-0-99ca3f316e21@gmail.com

Changes in v2:
- sort the pinctrl nodes alphabetically (ivo)
- move the interrupts from pinctrl file to SoC dtsi (krzk)
- move the wakeup-eint from pinctrl file to SoC dtsi (krzk)
- sort gpio-keys pinctrl-0 and pinctrl-names (ivo)
- rename the bixby key node to "wink" (ivo)
- sort gpio-keys subnodes (ivo)
- sort pinctrl_alive gpio-keys pin descriptions (ivo)
- fix the Co-developed-by tags and add a signoff (krzk)

- Link to v1: https://lore.kernel.org/r/20241024-exynos9810-v1-0-ed14d0d60d08@gmail.com

---
Markuss Broks (2):
      arm64: dts: exynos: Add Exynos9810 SoC support
      arm64: dts: exynos: Add initial support for Samsung Galaxy S9 (SM-G960F)

 arch/arm64/boot/dts/exynos/Makefile                |   1 +
 arch/arm64/boot/dts/exynos/exynos9810-pinctrl.dtsi | 503 +++++++++++++++++++++
 arch/arm64/boot/dts/exynos/exynos9810-starlte.dts  | 119 +++++
 arch/arm64/boot/dts/exynos/exynos9810.dtsi         | 273 +++++++++++
 4 files changed, 896 insertions(+)
---
base-commit: 1b2ab8149928c1cea2d7eca30cd35bb7fe014053
change-id: 20241024-exynos9810-b3eed995b0b9

Best regards,
-- 
Markuss Broks <markuss.broks@gmail.com>