[PATCH v2 0/2] clock support for Samsung Exynos pin controller (Google Tensor gs101)

From: André Draszik
Date: Fri Apr 26 2024 - 09:11:02 EST


This series enables clock support on the Samsung Exynos pin controller
driver.

This is required on Socs like Google Tensor gs101, which implement
fine-grained clock control / gating, and as such a running bus clock is
required for register access to work.

Signed-off-by: André Draszik <andre.draszik@xxxxxxxxxx>
---
Changes in v2:
- propagate clk_enable() errors in samsung_pinmux_setup(), i.e.
struct pinmux_ops::set_mux()
- move clk_enable()/disable() outside bank->slock lock, to avoid
possible deadlocks due to locking inversion (Krzysztof)
- fix some comments (Krzysztof)
- use 'ret' instead of 'i' in samsung_pinctrl_resume() (Krzysztof)
- Link to v1: https://lore.kernel.org/r/20240425-samsung-pinctrl-busclock-v1-0-898a200abe68@xxxxxxxxxx

---
André Draszik (2):
dt-bindings: pinctrl: samsung: google,gs101-pinctrl needs a clock
pinctrl: samsung: support a bus clock

.../bindings/pinctrl/samsung,pinctrl.yaml | 17 ++++
drivers/pinctrl/samsung/pinctrl-exynos.c | 112 +++++++++++++++++++++
drivers/pinctrl/samsung/pinctrl-samsung.c | 95 ++++++++++++++++-
drivers/pinctrl/samsung/pinctrl-samsung.h | 2 +
4 files changed, 223 insertions(+), 3 deletions(-)
---
base-commit: a59668a9397e7245b26e9be85d23f242ff757ae8
change-id: 20240425-samsung-pinctrl-busclock-151c23d76860

Best regards,
--
André Draszik <andre.draszik@xxxxxxxxxx>