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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Rosen Penev <rosenp@gmail.com>
Cc: stable@vger.kernel.org, "Harry Wentland" <harry.wentland@amd.com>,
	"Leo Li" <sunpeng.li@amd.com>,
	"Rodrigo Siqueira" <Rodrigo.Siqueira@amd.com>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Christian König" <christian.koenig@amd.com>,
	"Xinhui Pan" <Xinhui.Pan@amd.com>,
	"David Airlie" <airlied@gmail.com>,
	"Simona Vetter" <simona@ffwll.ch>,
	"Kenneth Feng" <kenneth.feng@amd.com>,
	"Timur Kristóf" <timur.kristof@gmail.com>,
	"Alex Hung" <alex.hung@amd.com>,
	"Lijo Lazar" <lijo.lazar@amd.com>, "chr[]" <chris@rudorff.com>,
	"Sasha Levin" <sashal@kernel.org>,
	"Wentao Liang" <vulab@iscas.ac.cn>,
	"open list:AMD DISPLAY CORE" <amd-gfx@lists.freedesktop.org>,
	"open list:DRM DRIVERS" <dri-devel@lists.freedesktop.org>,
	"open list" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH for 6.12 and 6.6 1/2] drm/amd/display: Add pixel_clock to amd_pp_display_configuration
Date: Thu, 19 Mar 2026 10:52:22 +0100	[thread overview]
Message-ID: <2026031910-improving-approval-9457@gregkh> (raw)
In-Reply-To: <20260225215804.11398-1-rosenp@gmail.com>

On Wed, Feb 25, 2026 at 01:58:03PM -0800, Rosen Penev wrote:
> From: Timur Kristóf <timur.kristof@gmail.com>
> 
> commit b515dcb0dc4e85d8254f5459cfb32fce88dacbfb upstream.
> 
> This commit adds the pixel_clock field to the display config
> struct so that power management (DPM) can use it.
> 
> We currently don't have a proper bandwidth calculation on old
> GPUs with DCE 6-10 because dce_calcs only supports DCE 11+.
> So the power management (DPM) on these GPUs may need to make
> ad-hoc decisions for display based on the pixel clock.
> 
> Also rename sym_clock to pixel_clock in dm_pp_single_disp_config
> to avoid confusion with other code where the sym_clock refers to
> the DisplayPort symbol clock.
> 
> Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> ---
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c       | 1 +
>  drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c | 2 +-
>  drivers/gpu/drm/amd/display/dc/dm_services_types.h             | 2 +-
>  drivers/gpu/drm/amd/include/dm_pp_interface.h                  | 1 +
>  4 files changed, 4 insertions(+), 2 deletions(-)

You did not sign-off on these backports :(


      parent reply	other threads:[~2026-03-19 12:41 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-25 21:58 [PATCH for 6.12 and 6.6 1/2] drm/amd/display: Add pixel_clock to amd_pp_display_configuration Rosen Penev
2026-02-25 21:58 ` [PATCH for 6.12 and 6.6 2/2] drm/amd/pm: Use pm_display_cfg in legacy DPM (v2) Rosen Penev
2026-03-19  9:52 ` Greg Kroah-Hartman [this message]

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