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From:   Maxime Ripard <maxime@cerno.tech>
To:     Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
        Eric Anholt <eric@anholt.net>
Cc:     dri-devel@lists.freedesktop.org,
        linux-rpi-kernel@lists.infradead.org,
        bcm-kernel-feedback-list@broadcom.com,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Dave Stevenson <dave.stevenson@raspberrypi.com>,
        Tim Gover <tim.gover@raspberrypi.com>,
        Phil Elwell <phil@raspberrypi.com>,
        Maxime Ripard <maxime@cerno.tech>
Subject: [PATCH v3 101/105] drm/vc4: hdmi: Do the VID_CTL configuration at once
Date:   Wed, 27 May 2020 17:49:11 +0200
Message-Id: <733b4ae69521eb4e580efde2dd1cffeba9dcd80b.1590594512.git-series.maxime@cerno.tech>
In-Reply-To: <cover.aaf2100bd7da4609f8bcb8216247d4b4e4379639.1590594512.git-series.maxime@cerno.tech>
References: <cover.aaf2100bd7da4609f8bcb8216247d4b4e4379639.1590594512.git-series.maxime@cerno.tech>
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The VID_CTL setup is done in several places in the driver even though it's
not really required. Let's simplify it a bit to do the configuration in one
go.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 86ce8d247a00..d889a83a0f56 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -429,10 +429,6 @@ static void vc4_hdmi_set_timings(struct vc4_hdmi *vc4_hdmi,
 
 	HDMI_WRITE(HDMI_VERTB0, vertb_even);
 	HDMI_WRITE(HDMI_VERTB1, vertb);
-
-	HDMI_WRITE(HDMI_VID_CTL,
-		   (vsync_pos ? 0 : VC4_HD_VID_CTL_VSYNC_LOW) |
-		   (hsync_pos ? 0 : VC4_HD_VID_CTL_HSYNC_LOW));
 }
 
 static void vc4_hdmi_recenter_fifo(struct vc4_hdmi *vc4_hdmi)
@@ -521,8 +517,6 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder)
 	if (vc4_hdmi->variant->phy_init)
 		vc4_hdmi->variant->phy_init(vc4_hdmi, mode);
 
-	HDMI_WRITE(HDMI_VID_CTL, 0);
-
 	HDMI_WRITE(HDMI_SCHEDULER_CONTROL,
 		   HDMI_READ(HDMI_SCHEDULER_CONTROL) |
 		   VC4_HDMI_SCHEDULER_CONTROL_MANUAL_FORMAT |
@@ -566,8 +560,8 @@ static void vc4_hdmi_encoder_post_crtc_enable(struct drm_encoder *encoder)
 	HDMI_WRITE(HDMI_VID_CTL,
 		   HDMI_READ(HDMI_VID_CTL) |
 		   VC4_HD_VID_CTL_ENABLE |
-		   VC4_HD_VID_CTL_UNDERFLOW_ENABLE |
-		   VC4_HD_VID_CTL_FRAME_COUNTER_RESET);
+		   (vsync_pos ? 0 : VC4_HD_VID_CTL_VSYNC_LOW) |
+		   (hsync_pos ? 0 : VC4_HD_VID_CTL_HSYNC_LOW));
 
 	if (vc4_encoder->hdmi_monitor) {
 		HDMI_WRITE(HDMI_SCHEDULER_CONTROL,
-- 
git-series 0.9.1