mbox series

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

Message ID 20240426-samsung-pinctrl-busclock-v2-0-8dfecaabf020@linaro.org
Headers show
Series clock support for Samsung Exynos pin controller (Google Tensor gs101) | expand

Message

André Draszik April 26, 2024, 1:10 p.m. UTC 
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@linaro.org>
---
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@linaro.org

---
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,