Re: [RESEND 16/26] drm/amd/display/dc/dce/dce_transform: Remove superfluous re-initialisation of DCFE_MEM_LIGHT_SLEEP_CNTL,

From: Alex Deucher <alexdeucher@gmail.com>
To: Lee Jones <lee.jones@linaro.org>
Cc: "Leo Li" <sunpeng.li@amd.com>,
	"Mauro Rossi" <issor.oruam@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>,
	"Maling list - DRI developers" <dri-devel@lists.freedesktop.org>,
	"David Airlie" <airlied@linux.ie>,
	"amd-gfx list" <amd-gfx@lists.freedesktop.org>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Christian König" <christian.koenig@amd.com>
Subject: Re: [RESEND 16/26] drm/amd/display/dc/dce/dce_transform: Remove superfluous re-initialisation of DCFE_MEM_LIGHT_SLEEP_CNTL,
Date: Wed, 2 Jun 2021 12:23:48 -0400	[thread overview]
Message-ID: <CADnq5_MHcth1p_00d=0ey+kg8o=_ZQk4t-RcU7zx3fb+35uy+g@mail.gmail.com> (raw)
In-Reply-To: <20210602143300.2330146-17-lee.jones@linaro.org>

On Wed, Jun 2, 2021 at 10:33 AM Lee Jones <lee.jones@linaro.org> wrote:
>
> Fixes the following W=1 kernel build warning(s):
>
>  drivers/gpu/drm/amd/amdgpu/../display/modules/hdcp/hdcp_psp.c:374:22: warning: no previous prototype for ‘mod_hdcp_hdcp1_get_link_encryption_status’
>  In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dce60/dce60_resource.c:28:
>  drivers/gpu/drm/amd/amdgpu/../include/asic_reg/dce/dce_6_0_d.h:568:43: warning: initialized field overwritten [-Woverride-init]
>  drivers/gpu/drm/amd/amdgpu/../display/dc/dce60/dce60_resource.c:157:14: note: in expansion of macro ‘mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL’
>  drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_transform.h:170:2: note: in expansion of macro ‘SRI’
>  drivers/gpu/drm/amd/amdgpu/../display/dc/dce60/dce60_resource.c:183:3: note: in expansion of macro ‘XFM_COMMON_REG_LIST_DCE60’
>  drivers/gpu/drm/amd/amdgpu/../display/dc/dce60/dce60_resource.c:187:3: note: in expansion of macro ‘transform_regs’
>  drivers/gpu/drm/amd/amdgpu/../include/asic_reg/dce/dce_6_0_d.h:568:43: note: (near initialization for ‘xfm_regs[0].DCFE_MEM_LIGHT_SLEEP_CNTL’)
>  drivers/gpu/drm/amd/amdgpu/../display/dc/dce60/dce60_resource.c:157:14: note: in expansion of macro ‘mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL’
>  drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_transform.h:170:2: note: in expansion of macro ‘SRI’
>  drivers/gpu/drm/amd/amdgpu/../display/dc/dce60/dce60_resource.c:183:3: note: in expansion of macro ‘XFM_COMMON_REG_LIST_DCE60’
>  drivers/gpu/drm/amd/amdgpu/../display/dc/dce60/dce60_resource.c:187:3: note: in expansion of macro ‘transform_regs’
>  drivers/gpu/drm/amd/amdgpu/../include/asic_reg/dce/dce_6_0_d.h:645:43: warning: initialized field overwritten [-Woverride-init]
>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Leo Li <sunpeng.li@amd.com>
> Cc: Alex Deucher <alexander.deucher@amd.com>
> Cc: "Christian König" <christian.koenig@amd.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: Mauro Rossi <issor.oruam@gmail.com>
> Cc: amd-gfx@lists.freedesktop.org
> Cc: dri-devel@lists.freedesktop.org
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> ---
>  drivers/gpu/drm/amd/display/dc/dce/dce_transform.h | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_transform.h b/drivers/gpu/drm/amd/display/dc/dce/dce_transform.h
> index cbce194ec7b82..e98b5d4141739 100644
> --- a/drivers/gpu/drm/amd/display/dc/dce/dce_transform.h
> +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_transform.h
> @@ -166,8 +166,7 @@
>         SRI(SCL_F_SHARP_CONTROL, SCL, id)
>
>  #define XFM_COMMON_REG_LIST_DCE60(id) \
> -       XFM_COMMON_REG_LIST_DCE60_BASE(id), \
> -       SRI(DCFE_MEM_LIGHT_SLEEP_CNTL, CRTC, id)
> +       XFM_COMMON_REG_LIST_DCE60_BASE(id)

I believe DCFE_MEM_LIGHT_SLEEP_CNTL should be kept here and it should
be removed from
XFM_COMMON_REG_LIST_DCE60_BASE() to align with other asics.

Alex

>  #endif
>
>  #define XFM_SF(reg_name, field_name, post_fix)\
> --
> 2.31.1
>