On Fri, Mar 13, 2020 at 06:48:23PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <[email protected]>
> 
> Clean up the TRANS_DDI_FUNC_CTL2 programming/readout by
> using REG_FIELD_PREP() & co.
> 
> Signed-off-by: Ville Syrjälä <[email protected]>

Reviewed-by: Manasi Navare <[email protected]>

Manasi

> ---
>  drivers/gpu/drm/i915/display/intel_ddi.c |  6 ++----
>  drivers/gpu/drm/i915/i915_reg.h          | 10 ++++------
>  2 files changed, 6 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c 
> b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 39f3e9452aad..8bb6c583abb8 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -1573,9 +1573,7 @@ void intel_ddi_enable_transcoder_func(const struct 
> intel_crtc_state *crtc_state)
>                               master_select = master_transcoder + 1;
>  
>                       ctl2 |= PORT_SYNC_MODE_ENABLE |
> -                             (PORT_SYNC_MODE_MASTER_SELECT(master_select) &
> -                              PORT_SYNC_MODE_MASTER_SELECT_MASK) <<
> -                             PORT_SYNC_MODE_MASTER_SELECT_SHIFT;
> +                             PORT_SYNC_MODE_MASTER_SELECT(master_select);
>               }
>  
>               intel_de_write(dev_priv,
> @@ -3854,7 +3852,7 @@ static enum transcoder transcoder_master_readout(struct 
> drm_i915_private *dev_pr
>       if ((ctl2 & PORT_SYNC_MODE_ENABLE) == 0)
>               return INVALID_TRANSCODER;
>  
> -     master_select = ctl2 & PORT_SYNC_MODE_MASTER_SELECT_MASK;
> +     master_select = REG_FIELD_GET(PORT_SYNC_MODE_MASTER_SELECT_MASK, ctl2);
>  
>       if (master_select == 0)
>               return TRANSCODER_EDP;
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 309cb7d96b35..fc5c00bfed87 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -9726,12 +9726,10 @@ enum skl_power_gate {
>  #define _TRANS_DDI_FUNC_CTL2_EDP     0x6f404
>  #define _TRANS_DDI_FUNC_CTL2_DSI0    0x6b404
>  #define _TRANS_DDI_FUNC_CTL2_DSI1    0x6bc04
> -#define TRANS_DDI_FUNC_CTL2(tran)    _MMIO_TRANS2(tran, \
> -                                                  _TRANS_DDI_FUNC_CTL2_A)
> -#define  PORT_SYNC_MODE_ENABLE                       (1 << 4)
> -#define  PORT_SYNC_MODE_MASTER_SELECT(x)     ((x) << 0)
> -#define  PORT_SYNC_MODE_MASTER_SELECT_MASK   (0x7 << 0)
> -#define  PORT_SYNC_MODE_MASTER_SELECT_SHIFT  0
> +#define TRANS_DDI_FUNC_CTL2(tran)    _MMIO_TRANS2(tran, 
> _TRANS_DDI_FUNC_CTL2_A)
> +#define  PORT_SYNC_MODE_ENABLE                       REG_BIT(4)
> +#define  PORT_SYNC_MODE_MASTER_SELECT_MASK   REG_GENMASK(2, 0)
> +#define  PORT_SYNC_MODE_MASTER_SELECT(x)     
> REG_FIELD_PREP(PORT_SYNC_MODE_MASTER_SELECT_MASK, (x))
>  
>  /* DisplayPort Transport Control */
>  #define _DP_TP_CTL_A                 0x64040
> -- 
> 2.24.1
> 
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