drm/i915/debugfs: New debugfs for display clock frequencies

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Instead of mixing display & non-display stuff together, move
display specific clock info to new debugfs. This patch will
create a new debugfs "i915_cdclk_info" to expose Current & Max
cdclk and Max pixel clock frequency info.

Example:
$ cat /sys/kernel/debug/dri/0/i915_cdclk_info
Current CD clock frequency: 163200 kHz
Max CD clock frequency: 652800 kHz
Max pixel clock frequency: 1305600 kHz

V2: - s/i915_display_clock_info/i915_cdclk_info/ (Jani)
    - Move the logic to intel_cdclk.c (Jani)
    - Don't remove info from i915_frequency_info (Jani)
V3: - Drop locking (Jani)

Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230413114502.1105288-1-bhanuprakash.modem@intel.com

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This commit is contained in:

Bhanuprakash Modem 2023-04-13 17:15:02 +05:30 • committed by Jani Nikula

parent e13b3f65af

commit d7c281eece

3 changed files with 23 additions and 0 deletions

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21

drivers/gpu/drm/i915/display/intel_cdclk.c

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1

drivers/gpu/drm/i915/display/intel_cdclk.h

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1

drivers/gpu/drm/i915/display/intel_display_debugfs.c

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