linux-kernel - [PATCH v2 49/91] drm/vc4: crtc: Rename HVS channel to output

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Message-Id: <800ff9ca9bb838bf3122ee56b449bf8fe300b8ec.1587742492.git-series.maxime@cerno.tech>
Date:   Fri, 24 Apr 2020 17:34:30 +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>
Subject: [PATCH v2 49/91] drm/vc4: crtc: Rename HVS channel to output

In vc5, the HVS has 6 outputs and 3 FIFOs (or channels), with
pixelvalves each being assigned to a given output, but each output can
then be muxed to feed from multiple FIFOs.

Since vc4 had that entirely static, both were probably equivalent, but
since that changes, let's rename hvs_channel to hvs_output in the
vc4_crtc_data, since a pixelvalve is really connected to an output, and
not to a FIFO.

Signed-off-by: Maxime Ripard <maxime@...no.tech>
---
 drivers/gpu/drm/vc4/vc4_crtc.c | 10 +++++-----
 drivers/gpu/drm/vc4/vc4_drv.h  |  4 ++--
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index e469bdab9124..e6d8f7656dd3 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -1058,7 +1058,7 @@ static const struct drm_crtc_helper_funcs vc4_crtc_helper_funcs = {
 };
 
 static const struct vc4_crtc_data bcm2835_pv0_data = {
-	.hvs_channel = 0,
+	.hvs_output = 0,
 	.debugfs_name = "crtc0_regs",
 	.pixels_per_clock = 1,
 	.encoder_types = {
@@ -1068,7 +1068,7 @@ static const struct vc4_crtc_data bcm2835_pv0_data = {
 };
 
 static const struct vc4_crtc_data bcm2835_pv1_data = {
-	.hvs_channel = 2,
+	.hvs_output = 2,
 	.debugfs_name = "crtc1_regs",
 	.pixels_per_clock = 1,
 	.encoder_types = {
@@ -1078,7 +1078,7 @@ static const struct vc4_crtc_data bcm2835_pv1_data = {
 };
 
 static const struct vc4_crtc_data bcm2835_pv2_data = {
-	.hvs_channel = 1,
+	.hvs_output = 1,
 	.debugfs_name = "crtc2_regs",
 	.pixels_per_clock = 1,
 	.encoder_types = {
@@ -1107,7 +1107,7 @@ static void vc4_set_crtc_possible_masks(struct drm_device *drm,
 		int i;
 
 		/* HVS FIFO2 can feed the TXP IP. */
-		if (crtc_data->hvs_channel == 2 &&
+		if (crtc_data->hvs_output == 2 &&
 		    encoder->encoder_type == DRM_MODE_ENCODER_VIRTUAL) {
 			encoder->possible_crtcs |= drm_crtc_mask(crtc);
 			continue;
@@ -1169,7 +1169,7 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data)
 	drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL,
 				  &vc4_crtc_funcs, NULL);
 	drm_crtc_helper_add(crtc, &vc4_crtc_helper_funcs);
-	vc4_crtc->channel = vc4_crtc->data->hvs_channel;
+	vc4_crtc->channel = vc4_crtc->data->hvs_output;
 	drm_mode_crtc_set_gamma_size(crtc, ARRAY_SIZE(vc4_crtc->lut_r));
 	drm_crtc_enable_color_mgmt(crtc, 0, false, crtc->gamma_size);
 
diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h
index 84e318098c5f..6fe36a38a8b3 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.h
+++ b/drivers/gpu/drm/vc4/vc4_drv.h
@@ -450,8 +450,8 @@ to_vc4_encoder(struct drm_encoder *encoder)
 }
 
 struct vc4_crtc_data {
-	/* Which channel of the HVS this pixelvalve sources from. */
-	int hvs_channel;
+	/* Which output of the HVS this pixelvalve sources from. */
+	int hvs_output;
 
 	/* Number of pixels output per clock period */
 	u8 pixels_per_clock;
-- 
git-series 0.9.1