On Fri, 2017-12-22 at 15:18 -0800, Rodrigo Vivi wrote:
> Some Cannonlake SKUs will come with a full split between
> port A and port E. This will be called port F although it
> is not a 6th port, but only a split.
I am not sure if this is said in this spec.
>From to what I can read and understand -
1) port A and port E can share lanes.
2) port F and port E mutually exclusive usage.
So, you could have port A(x4) and port F(x4)
or port A(x2) and port E(x2)
but doesn't really say port F is not a different port from port E.
Secondly, I also see that port F and port E have separate DDI_BUF_CTL
and DDI_AUX_CTL registers.
>
> v2: Fix size of dvo_ports found by Ander.
> v3: Adding missing cases from intel_bios.c for Port_F
> v4: Adding other missing cases and fix the commit message.
> v5: Rebase on top of display headers rework.
>
> Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
> Cc: Manasi Navare <manasi.d.navare@xxxxxxxxx>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_bios.c | 9 +++++++++
> drivers/gpu/drm/i915/intel_display.h | 1 +
> drivers/gpu/drm/i915/intel_dp.c | 2 ++
> drivers/gpu/drm/i915/intel_vbt_defs.h | 2 ++
> include/drm/i915_component.h | 3 +--
> 5 files changed, 15 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
> index 51108ffc28d1..59a150e2adce 100644
> --- a/drivers/gpu/drm/i915/intel_bios.c
> +++ b/drivers/gpu/drm/i915/intel_bios.c
> @@ -1140,6 +1140,7 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
> {DVO_PORT_HDMIC, DVO_PORT_DPC, -1},
> {DVO_PORT_HDMID, DVO_PORT_DPD, -1},
> {DVO_PORT_CRT, DVO_PORT_HDMIE, DVO_PORT_DPE},
> + {DVO_PORT_HDMIF, DVO_PORT_DPF, -1},
> };
>
> /*
> @@ -1688,6 +1689,7 @@ bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port por
> [PORT_C] = { DVO_PORT_DPC, DVO_PORT_HDMIC, },
> [PORT_D] = { DVO_PORT_DPD, DVO_PORT_HDMID, },
> [PORT_E] = { DVO_PORT_DPE, DVO_PORT_HDMIE, },
> + [PORT_F] = { DVO_PORT_DPF, DVO_PORT_HDMIF, },
> };
> int i;
>
> @@ -1726,6 +1728,7 @@ bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port)
> [PORT_C] = DVO_PORT_DPC,
> [PORT_D] = DVO_PORT_DPD,
> [PORT_E] = DVO_PORT_DPE,
> + [PORT_F] = DVO_PORT_DPF,
> };
> int i;
>
> @@ -1761,6 +1764,7 @@ static bool child_dev_is_dp_dual_mode(const struct child_device_config *child,
> [PORT_C] = { DVO_PORT_DPC, DVO_PORT_HDMIC, },
> [PORT_D] = { DVO_PORT_DPD, DVO_PORT_HDMID, },
> [PORT_E] = { DVO_PORT_DPE, DVO_PORT_HDMIE, },
> + [PORT_F] = { DVO_PORT_DPF, DVO_PORT_HDMIF, },
> };
>
> if (port == PORT_A || port >= ARRAY_SIZE(port_mapping))
> @@ -1927,6 +1931,11 @@ intel_bios_is_lspcon_present(struct drm_i915_private *dev_priv,
> if (port == PORT_D)
> return true;
> break;
> + case DVO_PORT_DPF:
> + case DVO_PORT_HDMIF:
> + if (port == PORT_F)
> + return true;
> + break;
> default:
> break;
> }
> diff --git a/drivers/gpu/drm/i915/intel_display.h b/drivers/gpu/drm/i915/intel_display.h
> index a0d2b6169361..e47638931b51 100644
> --- a/drivers/gpu/drm/i915/intel_display.h
> +++ b/drivers/gpu/drm/i915/intel_display.h
> @@ -119,6 +119,7 @@ enum port {
> PORT_C,
> PORT_D,
> PORT_E,
> + PORT_F,
>
> I915_MAX_PORTS
> };
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 35c5299feab6..71721de39e6b 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -1378,6 +1378,7 @@ static i915_reg_t skl_aux_ctl_reg(struct drm_i915_private *dev_priv,
> case PORT_B:
> case PORT_C:
> case PORT_D:
> + case PORT_F:
> return DP_AUX_CH_CTL(port);
> default:
> MISSING_CASE(port);
> @@ -1393,6 +1394,7 @@ static i915_reg_t skl_aux_data_reg(struct drm_i915_private *dev_priv,
> case PORT_B:
> case PORT_C:
> case PORT_D:
> + case PORT_F:
> return DP_AUX_CH_DATA(port, index);
> default:
> MISSING_CASE(port);
> diff --git a/drivers/gpu/drm/i915/intel_vbt_defs.h b/drivers/gpu/drm/i915/intel_vbt_defs.h
> index e3d7745a9151..8713e8295957 100644
> --- a/drivers/gpu/drm/i915/intel_vbt_defs.h
> +++ b/drivers/gpu/drm/i915/intel_vbt_defs.h
> @@ -299,6 +299,8 @@ struct bdb_general_features {
> #define DVO_PORT_DPA 10
> #define DVO_PORT_DPE 11 /* 193 */
> #define DVO_PORT_HDMIE 12 /* 193 */
> +#define DVO_PORT_DPF 13
> +#define DVO_PORT_HDMIF 14
> #define DVO_PORT_MIPIA 21 /* 171 */
> #define DVO_PORT_MIPIB 22 /* 171 */
> #define DVO_PORT_MIPIC 23 /* 171 */
> diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h
> index 545c6e0fea7d..346b1f5cb180 100644
> --- a/include/drm/i915_component.h
> +++ b/include/drm/i915_component.h
> @@ -26,9 +26,8 @@
>
> /* MAX_PORT is the number of port
> * It must be sync with I915_MAX_PORTS defined i915_drv.h
> - * 5 should be enough as only HSW, BDW, SKL need such fix.
> */
> -#define MAX_PORTS 5
> +#define MAX_PORTS 6
>
> /**
> * struct i915_audio_component_ops - Ops implemented by i915 driver, called by hda driver
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