[Intel-gfx] [PATCH v4 05/11] drm/i915/mtl: Add gmbus and gpio support

[Balasubramani Vivekanandan]

On 01.09.2022 23:03, Radhakrishna Sripada wrote:
> Add tables to map the GMBUS pin pairs to GPIO registers and port to DDC.
> From spec we have registers GPIO_CTL[1-5] mapped to native display phys and
> GPIO_CTL[9-12] are mapped to TC ports.
> 
> v2:
>  - Drop unused GPIO pins(MattR)
> 
> BSpec: 49306
> 
> Cc: Matt Roper <matthew.d.roper at intel.com>
> Original Author: Brian J Lovin
> Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_gmbus.c | 15 +++++++++++++++
>  drivers/gpu/drm/i915/display/intel_gmbus.h |  1 +
>  2 files changed, 16 insertions(+)

Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan at intel.com>
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_gmbus.c b/drivers/gpu/drm/i915/display/intel_gmbus.c
> index 6f6cfccad477..74443f57f62d 100644
> --- a/drivers/gpu/drm/i915/display/intel_gmbus.c
> +++ b/drivers/gpu/drm/i915/display/intel_gmbus.c
> @@ -117,6 +117,18 @@ static const struct gmbus_pin gmbus_pins_dg2[] = {
>  	[GMBUS_PIN_9_TC1_ICP] = { "tc1", GPIOJ },
>  };
>