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From: Mika Kahola <mika.kahola@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: jani.nikula@intel.com
Subject: [Intel-gfx] [PATCH v2 13/21] drm/i915/mtl: For DP2.0 10G and 20G rates use MPLLA
Date: Thu,  5 Jan 2023 14:54:38 +0200	[thread overview]
Message-ID: <20230105125446.960504-14-mika.kahola@intel.com> (raw)
In-Reply-To: <20230105125446.960504-1-mika.kahola@intel.com>

Use MPLLA for DP2.0 rates 20G and 20G, when ssc is enabled.

Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221014124740.774835-14-mika.kahola@intel.com
---
 drivers/gpu/drm/i915/display/intel_cx0_phy.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
index 7520f50d4ffc..67e8889aec29 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
@@ -2128,8 +2128,12 @@ static void intel_program_port_clock_ctl(struct intel_encoder *encoder,
 		if (!intel_panel_use_ssc(i915))
 			ssc_enabled = false;
 
-		/* TODO: DP2.0 10G and 20G rates enable MPLLA*/
-		val |= ssc_enabled ? XELPDP_SSC_ENABLE_PLLB : 0;
+		/* DP2.0 10G and 20G rates enable MPLLA*/
+		if (crtc_state->port_clock == 1000000 || crtc_state->port_clock == 2000000) {
+			val |= ssc_enabled ? XELPDP_SSC_ENABLE_PLLA : 0;
+		} else {
+			val |= ssc_enabled ? XELPDP_SSC_ENABLE_PLLB : 0;
+		}
 	}
 
 	intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
-- 
2.34.1


  parent reply	other threads:[~2023-01-05 13:00 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-05 12:54 [Intel-gfx] [PATCH v2 00/21] drm/i915/mtl: Add C10 and C20 phy support Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 01/21] drm/i915/mtl: Initial DDI port setup Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 02/21] drm/i915/mtl: Add DP rates Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 03/21] drm/i915/mtl: Create separate reg file for PICA registers Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 04/21] drm/i915/mtl: Add Support for C10 PHY message bus and pll programming Mika Kahola
2023-01-05 14:18   ` Jani Nikula
2023-01-09  9:49   ` Jani Nikula
2023-01-09 10:31     ` Kahola, Mika
2023-02-07 16:49   ` Gustavo Sousa
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 05/21] drm/i915/mtl: Add C10 phy programming for HDMI Mika Kahola
2023-01-05 15:35   ` kernel test robot
2023-01-05 16:06   ` kernel test robot
2023-01-05 16:16   ` kernel test robot
2023-01-05 16:47   ` kernel test robot
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 06/21] drm/i915/mtl: Add vswing programming for C10 phys Mika Kahola
2023-02-07 16:52   ` Gustavo Sousa
2023-02-07 17:35     ` Gustavo Sousa
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 07/21] drm/i915/mtl: Add support for PM DEMAND Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 08/21] drm/i915/mtl: C20 PLL programming Mika Kahola
2023-02-07 16:53   ` Gustavo Sousa
2023-02-21 13:18     ` Kahola, Mika
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 09/21] drm/i915/mtl: C20 HW readout Mika Kahola
2023-02-07 16:54   ` Gustavo Sousa
2023-02-23  9:47     ` Kahola, Mika
2023-02-23 10:36       ` Kahola, Mika
2023-03-24 20:51       ` Gustavo Sousa
2023-03-27  9:07         ` Imre Deak
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 10/21] drm/i915/mtl: C20 port clock calculation Mika Kahola
2023-01-05 16:47   ` kernel test robot
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 11/21] drm/i915/mtl: C20 HDMI state calculations Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 12/21] drm/i915/mtl: Add voltage swing sequence for C20 Mika Kahola
2023-01-05 12:54 ` Mika Kahola [this message]
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 14/21] drm/i915/mtl: Enabling/disabling sequence Thunderbolt pll Mika Kahola
2023-02-07 16:55   ` Gustavo Sousa
2023-02-21 13:23     ` Kahola, Mika
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 15/21] drm/i915/mtl: Readout Thunderbolt HW state Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 16/21] drm/i915/mtl: Enable TC ports Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 17/21] drm/i915/mtl: MTL PICA hotplug detection Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 18/21] drm/i915/mtl: Define mask for DDI AUX interrupts Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 19/21] drm/i915/mtl: Power up TCSS Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 20/21] drm/i915/mtl: TypeC HPD live status query Mika Kahola
2023-01-05 12:54 ` [Intel-gfx] [PATCH v2 21/21] drm/i915/mtl: Pin assignment for TypeC Mika Kahola
2023-01-26 14:40   ` Luca Coelho
2023-01-26 14:43     ` Luca Coelho

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