From: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Subject: [PATCH v4 07/11] drm/i915/mtl: Add DP AUX support on TypeC ports
Date: Thu, 1 Sep 2022 23:03:38 -0700 [thread overview]
Message-ID: <20220902060342.151824-8-radhakrishna.sripada@intel.com> (raw)
In-Reply-To: <20220902060342.151824-1-radhakrishna.sripada@intel.com>
From: Imre Deak <imre.deak@intel.com>
On MTL TypeC ports the AUX_CH_CTL and AUX_CH_DATA addresses have
changed wrt. previous platforms, adjust the code accordingly.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
drivers/gpu/drm/i915/display/intel_dp_aux.c | 45 ++++++++++++++++++++-
drivers/gpu/drm/i915/i915_reg.h | 9 +++++
2 files changed, 53 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c
index 98bd33645b43..48c375c65a41 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c
@@ -637,6 +637,46 @@ static i915_reg_t tgl_aux_data_reg(struct intel_dp *intel_dp, int index)
}
}
+static i915_reg_t xelpdp_aux_ctl_reg(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum aux_ch aux_ch = dig_port->aux_ch;
+
+ switch (aux_ch) {
+ case AUX_CH_A:
+ case AUX_CH_B:
+ case AUX_CH_USBC1:
+ case AUX_CH_USBC2:
+ case AUX_CH_USBC3:
+ case AUX_CH_USBC4:
+ return XELPDP_DP_AUX_CH_CTL(aux_ch);
+ default:
+ MISSING_CASE(aux_ch);
+ return XELPDP_DP_AUX_CH_CTL(AUX_CH_A);
+ }
+}
+
+static i915_reg_t xelpdp_aux_data_reg(struct intel_dp *intel_dp, int index)
+{
+ struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+ enum aux_ch aux_ch = dig_port->aux_ch;
+
+ switch (aux_ch) {
+ case AUX_CH_A:
+ case AUX_CH_B:
+ case AUX_CH_USBC1:
+ case AUX_CH_USBC2:
+ case AUX_CH_USBC3:
+ case AUX_CH_USBC4:
+ return XELPDP_DP_AUX_CH_DATA(aux_ch, index);
+ default:
+ MISSING_CASE(aux_ch);
+ return XELPDP_DP_AUX_CH_DATA(AUX_CH_A, index);
+ }
+}
+
void intel_dp_aux_fini(struct intel_dp *intel_dp)
{
if (cpu_latency_qos_request_active(&intel_dp->pm_qos))
@@ -652,7 +692,10 @@ void intel_dp_aux_init(struct intel_dp *intel_dp)
struct intel_encoder *encoder = &dig_port->base;
enum aux_ch aux_ch = dig_port->aux_ch;
- if (DISPLAY_VER(dev_priv) >= 12) {
+ if (DISPLAY_VER(dev_priv) >= 14) {
+ intel_dp->aux_ch_ctl_reg = xelpdp_aux_ctl_reg;
+ intel_dp->aux_ch_data_reg = xelpdp_aux_data_reg;
+ } else if (DISPLAY_VER(dev_priv) >= 12) {
intel_dp->aux_ch_ctl_reg = tgl_aux_ctl_reg;
intel_dp->aux_ch_data_reg = tgl_aux_data_reg;
} else if (DISPLAY_VER(dev_priv) >= 9) {
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 99b2cd2abca4..4ec6a3dd1f2b 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3470,6 +3470,15 @@
_XELPDP_USBC3_AUX_CH_CTL, \
_XELPDP_USBC4_AUX_CH_CTL))
+#define XELPDP_DP_AUX_CH_DATA(aux_ch, i) _MMIO(_PICK(aux_ch, \
+ _DPA_AUX_CH_DATA1, \
+ _DPB_AUX_CH_DATA1, \
+ 0, /* port/aux_ch C is non-existent */ \
+ _XELPDP_USBC1_AUX_CH_DATA1, \
+ _XELPDP_USBC2_AUX_CH_DATA1, \
+ _XELPDP_USBC3_AUX_CH_DATA1, \
+ _XELPDP_USBC4_AUX_CH_DATA1) + (i) * 4)
+
#define DP_AUX_CH_CTL_SEND_BUSY (1 << 31)
#define DP_AUX_CH_CTL_DONE (1 << 30)
#define DP_AUX_CH_CTL_INTERRUPT (1 << 29)
--
2.34.1
next prev parent reply other threads:[~2022-09-02 6:05 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-02 6:03 [PATCH v4 00/11] Initial Meteorlake Support Radhakrishna Sripada
2022-09-02 6:03 ` [PATCH v4 01/11] drm/i915: Move display and media IP version to runtime info Radhakrishna Sripada
2022-09-02 16:49 ` kernel test robot
2022-09-02 22:10 ` [PATCH v4.1] " Radhakrishna Sripada
2022-09-08 17:21 ` Matt Roper
2022-09-02 6:03 ` [PATCH v4 02/11] drm/i915: Read graphics/media/display arch version from hw Radhakrishna Sripada
2022-09-07 20:49 ` [Intel-gfx] " Lucas De Marchi
2022-09-07 22:13 ` Matt Roper
2022-09-07 22:21 ` Lucas De Marchi
2022-09-07 22:38 ` Sripada, Radhakrishna
2022-09-07 23:32 ` [PATCH v4.1] " Radhakrishna Sripada
2022-09-02 6:03 ` [PATCH v4 03/11] drm/i915: Parse and set stepping for platforms with GMD Radhakrishna Sripada
2022-09-08 17:42 ` [Intel-gfx] " Matt Roper
2022-09-02 6:03 ` [PATCH v4 04/11] drm/i915/mtl: Define engine context layouts Radhakrishna Sripada
2022-09-06 12:16 ` Balasubramani Vivekanandan
2022-09-07 23:33 ` [PATCH v4.1] " Radhakrishna Sripada
2022-09-08 18:00 ` [Intel-gfx] " Matt Roper
2022-09-02 6:03 ` [PATCH v4 05/11] drm/i915/mtl: Add gmbus and gpio support Radhakrishna Sripada
2022-09-08 13:05 ` [Intel-gfx] " Balasubramani Vivekanandan
2022-09-08 18:02 ` Matt Roper
2022-09-02 6:03 ` [PATCH v4 06/11] drm/i915/mtl: Add display power wells Radhakrishna Sripada
2022-09-08 18:07 ` Matt Roper
2022-09-08 18:11 ` Matt Roper
2022-09-02 6:03 ` Radhakrishna Sripada [this message]
2022-09-08 18:13 ` [PATCH v4 07/11] drm/i915/mtl: Add DP AUX support on TypeC ports Matt Roper
2022-09-02 6:03 ` [PATCH v4 08/11] drm/i915/mtl: Obtain SAGV values from MMIO instead of GT pcode mailbox Radhakrishna Sripada
2022-09-02 6:03 ` [PATCH v4 09/11] drm/i915/mtl: Update MBUS_DBOX credits Radhakrishna Sripada
2022-09-08 20:02 ` Matt Roper
2022-09-02 6:03 ` [PATCH v4 10/11] drm/i915/mtl: Update CHICKEN_TRANS* register addresses Radhakrishna Sripada
2022-09-08 20:30 ` Matt Roper
2022-09-02 6:03 ` [PATCH v4 11/11] drm/i915/mtl: Do not update GV point, mask value Radhakrishna Sripada
2022-09-09 17:14 ` [Intel-gfx] " Balasubramani Vivekanandan
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