Thread (21 messages) 21 messages, 3 authors, 2025-08-06

Re: [PATCH v3 02/16] dt-bindings: display: sprd: use more descriptive clock names

From: Cixi Geng <hidden>
Date: 2025-08-06 08:02:37
Also in: dri-devel, lkml

Rob Herring (Arm) [off-list ref] 于2025年8月4日周一 00:54写道:

On Thu, 31 Jul 2025 17:51:15 +0200, Otto Pflüger wrote:
quoted
Introduce new clock names that actually describe what the clock input is
used for instead of referring to a specific clock source.

The new clock input names are based on information from clock drivers
such as drivers/clk/sprd/ums512-clk.c. The 128M clock appears to be
CLK_DISPC0_DPI, the clock used for the DPI output from the DPU, while
the 384M clock is CLK_DISPC0, the actual DPU core clock. The DSI
controller's 96M clock is most likely CLK_DSI_APB, the APB clock used
for accessing its control registers.

Since it seems possible to configure different frequencies for these
clocks, the old bindings do not even accurately describe the hardware.
Deprecate the old clock names.

Signed-off-by: Otto Pflüger <redacted>
---
 .../bindings/display/sprd/sprd,sharkl3-dpu.yaml         | 17 +++++++++++------
 .../bindings/display/sprd/sprd,sharkl3-dsi-host.yaml    | 11 ++++++++---
 2 files changed, 19 insertions(+), 9 deletions(-)
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Cixi Geng <redacted>
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