arm64: dts: amlogic: assign the MMC signal clocks

[PATCH 0/6] arm64: dts: amlogic: assign the MMC signal clocks

Posted by Jerome Brunet 3 weeks, 4 days ago

The amlogic MMC driver operate with the assumption that MMC clock
is configured to provide 24MHz. It uses this path for low
rates such as 400kHz.

Assign the clocks to make sure they are properly configured

This fix has been split into multiple changes to get the Fixes tag
right and help stable pick up the change.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
Jerome Brunet (6):
      arm64: dts: amlogic: c3: assign the MMC signal clocks
      arm64: dts: amlogic: a1: align the mmc clock setup
      arm64: dts: amlogic: axg: assign the MMC signal clocks
      arm64: dts: amlogic: gx: assign the MMC signal clocks
      arm64: dts: amlogic: g12: assign the MMC B and C signal clocks
      arm64: dts: amlogic: g12: assign the MMC A signal clock

 arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi       | 7 +++++++
 arch/arm64/boot/dts/amlogic/meson-a1.dtsi         | 5 +++--
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi        | 6 ++++++
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 9 +++++++++
 arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi       | 9 +++++++++
 arch/arm64/boot/dts/amlogic/meson-gxl.dtsi        | 9 +++++++++
 6 files changed, 43 insertions(+), 2 deletions(-)
---
base-commit: cd3b654a413c14648d0074ca160da62e4e29ac88
change-id: 20260114-amlogic-mmc-clocks-followup-a0733cc59283

Best regards,
-- 
Jerome

Re: [PATCH 0/6] arm64: dts: amlogic: assign the MMC signal clocks

Posted by Neil Armstrong 3 weeks, 3 days ago

Hi,

On Wed, 14 Jan 2026 18:08:47 +0100, Jerome Brunet wrote:
> The amlogic MMC driver operate with the assumption that MMC clock
> is configured to provide 24MHz. It uses this path for low
> rates such as 400kHz.
> 
> Assign the clocks to make sure they are properly configured
> 
> This fix has been split into multiple changes to get the Fixes tag
> right and help stable pick up the change.
> 
> [...]

Thanks, Applied to https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git (v6.20/arm64-dt)

[1/6] arm64: dts: amlogic: c3: assign the MMC signal clocks
      https://git.kernel.org/amlogic/c/69330fd2368371c4eb47d60ace6bca09763d24a0
[2/6] arm64: dts: amlogic: a1: align the mmc clock setup
      https://git.kernel.org/amlogic/c/c6ccd0d9a253b59125e5c625139799b41f0de3e0
[3/6] arm64: dts: amlogic: axg: assign the MMC signal clocks
      https://git.kernel.org/amlogic/c/13d3fe2318ef6e46d6fcfe13bc373827fdf2aeac
[4/6] arm64: dts: amlogic: gx: assign the MMC signal clocks
      https://git.kernel.org/amlogic/c/406706559046eebc09a31e8ae5e78620bfd746fe
[5/6] arm64: dts: amlogic: g12: assign the MMC B and C signal clocks
      https://git.kernel.org/amlogic/c/be2ff5fdb0e83e32d4ec4e68a69875cec0d14621
[6/6] arm64: dts: amlogic: g12: assign the MMC A signal clock
      https://git.kernel.org/amlogic/c/3c941feaa363f1573a501452391ddf513394c84b

These changes has been applied on the intermediate git tree [1].

The v6.20/arm64-dt branch will then be sent via a formal Pull Request to the Linux SoC maintainers
for inclusion in their intermediate git branches in order to be sent to Linus during
the next merge window, or sooner if it's a set of fixes.

In the cases of fixes, those will be merged in the current release candidate
kernel and as soon they appear on the Linux master branch they will be
backported to the previous Stable and Long-Stable kernels [2].

The intermediate git branches are merged daily in the linux-next tree [3],
people are encouraged testing these pre-release kernels and report issues on the
relevant mailing-lists.

If problems are discovered on those changes, please submit a signed-off-by revert
patch followed by a corrective changeset.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git
[2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
[3] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git

-- 
Neil

Re: [PATCH 0/6] arm64: dts: amlogic: assign the MMC signal clocks

Posted by Neil Armstrong 3 weeks, 3 days ago

On 1/14/26 18:08, Jerome Brunet wrote:
> The amlogic MMC driver operate with the assumption that MMC clock
> is configured to provide 24MHz. It uses this path for low
> rates such as 400kHz.
> 
> Assign the clocks to make sure they are properly configured
> 
> This fix has been split into multiple changes to get the Fixes tag
> right and help stable pick up the change.
> 
> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
> ---
> Jerome Brunet (6):
>        arm64: dts: amlogic: c3: assign the MMC signal clocks
>        arm64: dts: amlogic: a1: align the mmc clock setup
>        arm64: dts: amlogic: axg: assign the MMC signal clocks
>        arm64: dts: amlogic: gx: assign the MMC signal clocks
>        arm64: dts: amlogic: g12: assign the MMC B and C signal clocks
>        arm64: dts: amlogic: g12: assign the MMC A signal clock
> 
>   arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi       | 7 +++++++
>   arch/arm64/boot/dts/amlogic/meson-a1.dtsi         | 5 +++--
>   arch/arm64/boot/dts/amlogic/meson-axg.dtsi        | 6 ++++++
>   arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 9 +++++++++
>   arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi       | 9 +++++++++
>   arch/arm64/boot/dts/amlogic/meson-gxl.dtsi        | 9 +++++++++
>   6 files changed, 43 insertions(+), 2 deletions(-)
> ---
> base-commit: cd3b654a413c14648d0074ca160da62e4e29ac88
> change-id: 20260114-amlogic-mmc-clocks-followup-a0733cc59283
> 
> Best regards,

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

Thanks,
Neil