Re: [PATCH] drm/amd/display (gcc13): fix enum mismatch

[Harry Wentland <harry.wentland@xxxxxxx>]

On 2022-10-31 07:42, Jiri Slaby (SUSE) wrote:
> rn_vbios_smu_set_dcn_low_power_state() produces a valid warning with
> gcc-13:
>   drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c:237:6: error: conflicting types for 'rn_vbios_smu_set_dcn_low_power_state' due to enum/integer mismatch; have 'void(struct clk_mgr_internal *, enum dcn_pwr_state)'
>   drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.h:36:6: note: previous declaration of 'rn_vbios_smu_set_dcn_low_power_state' with type 'void(struct clk_mgr_internal *, int)'
> 
> I.e. the type of the 2nd parameter of
> rn_vbios_smu_set_dcn_low_power_state() in the declaration is int, while
> the definition spells enum dcn_pwr_state. Synchronize them to the
> latter (and add a forward enum declaration).
> 
> Cc: Martin Liska <mliska@xxxxxxx>
> Cc: Harry Wentland <harry.wentland@xxxxxxx>
> Cc: Leo Li <sunpeng.li@xxxxxxx>
> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> Cc: "Christian König" <christian.koenig@xxxxxxx>
> Cc: "Pan, Xinhui" <Xinhui.Pan@xxxxxxx>
> Cc: David Airlie <airlied@xxxxxxxxx>
> Cc: Daniel Vetter <daniel@xxxxxxxx>
> Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx>

Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>

Harry

> ---
>  .../drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.h   | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.h
> index 3e5df27aa96f..1ce19d875358 100644
> --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.h
> +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.h
> @@ -26,6 +26,8 @@
>  #ifndef DAL_DC_RN_CLK_MGR_VBIOS_SMU_H_
>  #define DAL_DC_RN_CLK_MGR_VBIOS_SMU_H_
>  
> +enum dcn_pwr_state;
> +
>  int rn_vbios_smu_get_smu_version(struct clk_mgr_internal *clk_mgr);
>  int rn_vbios_smu_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_dispclk_khz);
>  int rn_vbios_smu_set_dprefclk(struct clk_mgr_internal *clk_mgr);
> @@ -33,7 +35,7 @@ int rn_vbios_smu_set_hard_min_dcfclk(struct clk_mgr_internal *clk_mgr, int reque
>  int rn_vbios_smu_set_min_deep_sleep_dcfclk(struct clk_mgr_internal *clk_mgr, int requested_min_ds_dcfclk_khz);
>  void rn_vbios_smu_set_phyclk(struct clk_mgr_internal *clk_mgr, int requested_phyclk_khz);
>  int rn_vbios_smu_set_dppclk(struct clk_mgr_internal *clk_mgr, int requested_dpp_khz);
> -void rn_vbios_smu_set_dcn_low_power_state(struct clk_mgr_internal *clk_mgr, int display_count);
> +void rn_vbios_smu_set_dcn_low_power_state(struct clk_mgr_internal *clk_mgr, enum dcn_pwr_state);
>  void rn_vbios_smu_enable_48mhz_tmdp_refclk_pwrdwn(struct clk_mgr_internal *clk_mgr, bool enable);
>  void rn_vbios_smu_enable_pme_wa(struct clk_mgr_internal *clk_mgr);
>  int rn_vbios_smu_is_periodic_retraining_disabled(struct clk_mgr_internal *clk_mgr);