| From: |
| Laurentiu Mihalcea <laurentiumihalcea111-AT-gmail.com> |
| To: |
| Abel Vesa <abelvesa-AT-kernel.org>, Peng Fan <peng.fan-AT-nxp.com>, Michael Turquette <mturquette-AT-baylibre.com>, Stephen Boyd <sboyd-AT-kernel.org>, Rob Herring <robh-AT-kernel.org>, Krzysztof Kozlowski <krzk+dt-AT-kernel.org>, Conor Dooley <conor+dt-AT-kernel.org>, Shawn Guo <shawnguo-AT-kernel.org>, Fabio Estevam <festevam-AT-gmail.com>, Philipp Zabel <p.zabel-AT-pengutronix.de>, Daniel Baluta <daniel.baluta-AT-nxp.com>, Shengjiu Wang <shengjiu.wang-AT-nxp.com> |
| Subject: |
| [PATCH v2 0/8] Add support for i.MX8ULP's SIM LPAV |
| Date: |
| Fri, 17 Oct 2025 04:20:17 -0700 |
| Message-ID: |
| <20251017112025.11997-1-laurentiumihalcea111@gmail.com> |
| Cc: |
| linux-clk-AT-vger.kernel.org, imx-AT-lists.linux.dev, devicetree-AT-vger.kernel.org, linux-arm-kernel-AT-lists.infradead.org, linux-kernel-AT-vger.kernel.org, Pengutronix Kernel Team <kernel-AT-pengutronix.de> |
| Archive-link: |
| Article |
From: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
The LPAV System Integration Module (SIM) is an IP found inside i.MX8ULP's
LPAV subsystem, which offers clock gating, reset line
assertion/de-assertion, and various other misc. options.
This series adds support for the IP by introducing a new clock HW provider
driver and by modifying i.MX8MP's AUDIOMIX block control reset driver to
allow it to be used for i.MX8ULP's SIM LPAV as well.
This series is a spin-off from [1].
[1]: https://lore.kernel.org/lkml/20240922174225.75948-1-laure...
---
Changes in v2:
* drop redundant description for "#clock-cells"/"#reset-cells" properties
from binding
* make "mux-controller" and "#reset-cells" properties mandatory
* add "mux-controller" child to binding example node
* drop the compatiblity with syscon - this was never actually needed and
it was done to allow using "mmio-mux", which requires a syscon parent
* modify the auxiliary reset driver to use regmap - this will allow the
mux controller, clock control and reset control APIs to use the same
spinlock
* rename "imx8ulp-reset-sim-lpav.h" to "fsl,imx8ulp-sim-lpav.h"
* drop the "IMX8ULP_CLK_SIM_LPAV_END" macro, which doesn't belong to the
binding headers
* fix the values of "IMX8MP_AUDIOMIX_EARC_RESET_MASK" and
"IMX8MP_AUDIOMIX_EARC_PHY_RESET_MASK", which were previously incorrect
* drop redundant macros from auxiliary reset driver - replace their
occurrences with their values
* squash the binding-related macro additions into the binding patch
* add mux-controller child node to the sim_lpav node
* make the "gates" array static
* link to v1: https://lore.kernel.org/lkml/20250804155407.285353-1-laur...
---
Laurentiu Mihalcea (8):
reset: imx8mp-audiomix: Fix bad mask values
dt-bindings: clock: document 8ULP's SIM LPAV
clk: imx: add driver for imx8ulp's sim lpav
reset: imx8mp-audiomix: Drop unneeded macros
reset: imx8mp-audiomix: Switch to using regmap API
reset: imx8mp-audiomix: Extend the driver usage
reset: imx8mp-audiomix: Support i.MX8ULP SIM LPAV
arm64: dts: imx8ulp: add sim lpav node
.../bindings/clock/fsl,imx8ulp-sim-lpav.yaml | 72 ++++++
arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 17 ++
drivers/clk/imx/Makefile | 1 +
drivers/clk/imx/clk-imx8ulp-sim-lpav.c | 211 ++++++++++++++++++
drivers/reset/reset-imx8mp-audiomix.c | 174 +++++++++++----
include/dt-bindings/clock/imx8ulp-clock.h | 5 +
.../dt-bindings/reset/fsl,imx8ulp-sim-lpav.h | 16 ++
7 files changed, 453 insertions(+), 43 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/fsl,imx8ulp-sim-lpav.yaml
create mode 100644 drivers/clk/imx/clk-imx8ulp-sim-lpav.c
create mode 100644 include/dt-bindings/reset/fsl,imx8ulp-sim-lpav.h
--
2.43.0
