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

Ville Syrjälä
2023-11-02T17:10:42Z

On Thu, Nov 02, 2023 at 05:12:14PM +0200, Andy Shevchenko wrote:
> From: Jani Nikula <jani.nikula@intel.com>
>
> Purely a guess. Drop the nop function.
>
> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
> 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(&dev_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