Hi there,
This patchset introduces clock driver support for the Exynos5515 SoC.
Currently, the following CMU blocks are defined:
- CMU_TOP (handles clocks for all child CMU blocks)
- CMU_PERI (handles clocks for USI, watchdog timer, etc)
- CMU_FSYS (handles clocks for MMC, USB, etc)
This driver support makes use of HWACG (hardware automatic clock gating),
so gates do not need to be manually forced on with CLK_IGNORE_UNUSED or
CLK_IS_CRITICAL. Rather, the hardware handles the clock gating.
Support for more blocks to come as support for the hardware requiring
them is added.
I am getting some checkpatch warnings telling me to check the MAINTAINERS
file, as new files have been added. I am assuming these can be ignored as
I am not a maintainer, and the whole clock driver and samsung subsystems
already have maintainers listed.
Signed-off-by: Aiden Isik <aidenisik@member.fsf.org>
---
Changes in v2:
- Fixed accidental revert in clk-pll.c
- Corrected mux parent ordering
- Corrected Signed-off-by tags
- Link to v1: https://patch.msgid.link/20260817-for-next-lucky7-clock-v1-0-032e4b229c76@member.fsf.org
To: Krzysztof Kozlowski <krzk@kernel.org>
To: Sylwester Nawrocki <s.nawrocki@samsung.com>
To: Chanwoo Choi <cw00.choi@samsung.com>
To: Peter Griffin <peter.griffin@linaro.org>
To: Alim Akhtar <alim.akhtar@samsung.com>
To: Michael Turquette <mturquette@baylibre.com>
To: Stephen Boyd <sboyd@kernel.org>
To: Brian Masney <bmasney@redhat.com>
To: Rob Herring <robh@kernel.org>
To: Conor Dooley <conor+dt@kernel.org>
To: Aiden Isik <aidenisik+git@member.fsf.org>
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
Aiden Isik (3):
dt-bindings: clock: Add Exynos5515 SoC
clk: samsung: clk-pll: Add support for pll_309
clk: samsung: Introduce Exynos5515 clock driver
.../bindings/clock/samsung,exynos5515-cmu.yaml | 145 ++
drivers/clk/samsung/Makefile | 1 +
drivers/clk/samsung/clk-exynos5515.c | 1485 ++++++++++++++++++++
drivers/clk/samsung/clk-pll.c | 1 +
drivers/clk/samsung/clk-pll.h | 1 +
include/dt-bindings/clock/samsung,exynos5515-cmu.h | 191 +++
6 files changed, 1824 insertions(+)
---
base-commit: acde40ba506aae78633e080b5704d33cf4bc13c6
change-id: 20260815-for-next-lucky7-clock-3b4b7e6b1ce4
Best regards,
--
Aiden Isik <aidenisik@member.fsf.org>