Re: [Intel-gfx] [PATCH v3 01/15] drm/i915/dsi: assume BXT gpio works for non-native GPIO

2023-11-02 Thread Andy Shevchenko
On Thu, Nov 02, 2023 at 07:10:09PM +0200, Ville Syrjälä wrote:
> On Thu, Nov 02, 2023 at 05:12:14PM +0200, Andy Shevchenko wrote:

...

> > if (native)
> > icl_native_gpio_set_value(dev_priv, gpio_number, value);
> > else if (DISPLAY_VER(dev_priv) >= 11)
> > -   icl_exec_gpio(connector, gpio_source, gpio_index, value);
> > +   bxt_exec_gpio(connector, gpio_source, gpio_index, value);
> 
> We could just drop this whole branch since we end up in bxt_exec_gpio()
> in the end anyway. Or we drop the final else and make this one check for
> DISPLAY_VER >=9.

Looking at the code, I'm not sure how we can get rid of it, but the second
option is feasible.

> > else if (IS_VALLEYVIEW(dev_priv))
> > vlv_exec_gpio(connector, gpio_source, gpio_number, value);
> > else if (IS_CHERRYVIEW(dev_priv))

-- 
With Best Regards,
Andy Shevchenko




Re: [Intel-gfx] [PATCH v3 01/15] drm/i915/dsi: assume BXT gpio works for non-native GPIO

2023-11-02 Thread Ville Syrjälä
On Thu, Nov 02, 2023 at 05:12:14PM +0200, Andy Shevchenko wrote:
> From: Jani Nikula 
> 
> Purely a guess. Drop the nop function.
> 
> Cc: Andy Shevchenko 
> Cc: Hans de Goede 
> Signed-off-by: Jani Nikula 
> Signed-off-by: Andy Shevchenko 
> ---
>  drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 10 +-
>  1 file changed, 1 insertion(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c 
> b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
> index 24b2cbcfc1ef..b2c0cc11f8c1 100644
> --- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
> +++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
> @@ -372,14 +372,6 @@ static void bxt_exec_gpio(struct intel_connector 
> *connector,
>   gpiod_set_value(gpio_desc, value);
>  }
>  
> -static void icl_exec_gpio(struct intel_connector *connector,
> -   u8 gpio_source, u8 gpio_index, bool value)
> -{
> - struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> -
> - drm_dbg_kms(_priv->drm, "Skipping ICL GPIO element execution\n");
> -}
> -
>  enum {
>   MIPI_RESET_1 = 0,
>   MIPI_AVDD_EN_1,
> @@ -491,7 +483,7 @@ static const u8 *mipi_exec_gpio(struct intel_dsi 
> *intel_dsi, const u8 *data)
>   if (native)
>   icl_native_gpio_set_value(dev_priv, gpio_number, value);
>   else if (DISPLAY_VER(dev_priv) >= 11)
> - icl_exec_gpio(connector, gpio_source, gpio_index, value);
> + bxt_exec_gpio(connector, gpio_source, gpio_index, value);

We could just drop this whole branch since we end up in bxt_exec_gpio()
in the end anyway. Or we drop the final else and make this one check for
DISPLAY_VER >=9.

>   else if (IS_VALLEYVIEW(dev_priv))
>   vlv_exec_gpio(connector, gpio_source, gpio_number, value);
>   else if (IS_CHERRYVIEW(dev_priv))
> -- 
> 2.40.0.1.gaa8946217a0b

-- 
Ville Syrjälä
Intel