[PATCH] drm/bridge: dw-hdmi: Remove unused hdmi_enable_overflow_interrupts()

[Laurent Pinchart]

Hi Fabio,

Thank you for the patch.

On Friday, 16 February 2018 22:16:10 EET Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam at nxp.com>
> 
> The cable_plugin member never receives an assignment, so it is always
> false, which causes hdmi_enable_overflow_interrupts() to never
> be called as per the logic below:
> 
> 	if (hdmi->cable_plugin && hdmi->sink_is_hdmi)
> 		hdmi_enable_overflow_interrupts(hdmi);
> 
> This has been the case since the driver was originally introduced
> in commit 9aaf880ed4ee ("imx-drm: Add mx6 hdmi transmitter support").
> 
> Remove the cable_plugin element and the hdmi_enable_overflow_interrupts()
> function that is never called.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam at nxp.com>

Tested-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com> # On R-Car H3
Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>

> ---
>  drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 9 ---------
>  1 file changed, 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index a38db40..b0b9570 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -147,7 +147,6 @@ struct dw_hdmi {
>  	int vic;
> 
>  	u8 edid[HDMI_EDID_LEN];
> -	bool cable_plugin;
> 
>  	struct {
>  		const struct dw_hdmi_phy_ops *ops;
> @@ -1658,12 +1657,6 @@ static void dw_hdmi_clear_overflow(struct dw_hdmi
> *hdmi) hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
>  }
> 
> -static void hdmi_enable_overflow_interrupts(struct dw_hdmi *hdmi)
> -{
> -	hdmi_writeb(hdmi, 0, HDMI_FC_MASK2);
> -	hdmi_writeb(hdmi, 0, HDMI_IH_MUTE_FC_STAT2);
> -}
> -
>  static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi)
>  {
>  	hdmi_writeb(hdmi, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK,
> @@ -1753,8 +1746,6 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct
> drm_display_mode *mode) hdmi_tx_hdcp_config(hdmi);
> 
>  	dw_hdmi_clear_overflow(hdmi);
> -	if (hdmi->cable_plugin && hdmi->sink_is_hdmi)
> -		hdmi_enable_overflow_interrupts(hdmi);
> 
>  	return 0;
>  }

-- 
Regards,

Laurent Pinchart