linux-kernel - [PATCH v5 57/80] drm/vc4: hdmi: Store the encoder type in the variant structure

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Date:   Thu,  3 Sep 2020 10:01:29 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Eric Anholt <eric@...olt.net>
Cc:     dri-devel@...ts.freedesktop.org,
        linux-rpi-kernel@...ts.infradead.org,
        bcm-kernel-feedback-list@...adcom.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Tim Gover <tim.gover@...pberrypi.com>,
        Phil Elwell <phil@...pberrypi.com>,
        Maxime Ripard <maxime@...no.tech>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Hoegeun Kwon <hoegeun.kwon@...sung.com>,
        Stefan Wahren <stefan.wahren@...e.com>
Subject: [PATCH v5 57/80] drm/vc4: hdmi: Store the encoder type in the variant structure

The vc4 CRTC will use the encoder type to control its output clock
muxing. However, this will be different from HDMI0 to HDMI1, so let's
store our type in the variant structure so that we can support multiple
controllers later on.

Reviewed-by: Dave Stevenson <dave.stevenson@...pberrypi.com>
Tested-by: Chanwoo Choi <cw00.choi@...sung.com>
Tested-by: Hoegeun Kwon <hoegeun.kwon@...sung.com>
Tested-by: Stefan Wahren <stefan.wahren@...e.com>
Signed-off-by: Maxime Ripard <maxime@...no.tech>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 3 ++-
 drivers/gpu/drm/vc4/vc4_hdmi.h | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 9e2bc6cb690e..f6d18bdbd1bb 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1267,7 +1267,7 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)
 
 	dev_set_drvdata(dev, vc4_hdmi);
 	encoder = &vc4_hdmi->encoder.base.base;
-	vc4_hdmi->encoder.base.type = VC4_ENCODER_TYPE_HDMI0;
+	vc4_hdmi->encoder.base.type = variant->encoder_type;
 	vc4_hdmi->pdev = pdev;
 	vc4_hdmi->variant = variant;
 
@@ -1446,6 +1446,7 @@ static int vc4_hdmi_dev_remove(struct platform_device *pdev)
 }
 
 static const struct vc4_hdmi_variant bcm2835_variant = {
+	.encoder_type		= VC4_ENCODER_TYPE_HDMI0,
 	.registers		= vc4_hdmi_fields,
 	.num_registers		= ARRAY_SIZE(vc4_hdmi_fields),
 
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index 0c32dc46d289..0d529db4b3ab 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -27,6 +27,9 @@ struct vc4_hdmi;
 struct vc4_hdmi_register;
 
 struct vc4_hdmi_variant {
+	/* Encoder Type for that controller */
+	enum vc4_encoder_type encoder_type;
+
 	/* List of the registers available on that variant */
 	const struct vc4_hdmi_register *registers;
 
-- 
git-series 0.9.1