From: Neil Armstrong <narmstrong@baylibre.com>
To: a.hajda@samsung.com, Laurent.pinchart@ideasonboard.com,
jonas@kwiboo.se, jernej.skrabec@siol.net,
boris.brezillon@collabora.com
Cc: linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org,
Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH v4 07/11] drm/meson: meson_dw_hdmi: add bridge and switch to drm_bridge_funcs
Date: Thu, 6 Feb 2020 20:18:30 +0100 [thread overview]
Message-ID: <20200206191834.6125-8-narmstrong@baylibre.com> (raw)
In-Reply-To: <20200206191834.6125-1-narmstrong@baylibre.com>
Switch the dw-hdmi driver to drm_bridge_funcs by implementing a new local
bridge, connecting it to the dw-hdmi bridge, then implement the
atomic_get_input_bus_fmts/atomic_get_output_bus_fmts.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
drivers/gpu/drm/meson/meson_dw_hdmi.c | 105 +++++++++++++++++++++-----
1 file changed, 85 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c
index 3bb7ffe5fc39..4b3809626f7e 100644
--- a/drivers/gpu/drm/meson/meson_dw_hdmi.c
+++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c
@@ -16,6 +16,7 @@
#include <drm/bridge/dw_hdmi.h>
#include <drm/drm_atomic_helper.h>
+#include <drm/drm_bridge.h>
#include <drm/drm_device.h>
#include <drm/drm_edid.h>
#include <drm/drm_probe_helper.h>
@@ -135,6 +136,7 @@ struct meson_dw_hdmi_data {
struct meson_dw_hdmi {
struct drm_encoder encoder;
+ struct drm_bridge bridge;
struct dw_hdmi_plat_data dw_plat_data;
struct meson_drm *priv;
struct device *dev;
@@ -151,6 +153,8 @@ struct meson_dw_hdmi {
};
#define encoder_to_meson_dw_hdmi(x) \
container_of(x, struct meson_dw_hdmi, encoder)
+#define bridge_to_meson_dw_hdmi(x) \
+ container_of(x, struct meson_dw_hdmi, bridge)
static inline int dw_hdmi_is_compatible(struct meson_dw_hdmi *dw_hdmi,
const char *compat)
@@ -368,7 +372,7 @@ static inline void meson_dw_hdmi_phy_reset(struct meson_dw_hdmi *dw_hdmi)
}
static void dw_hdmi_set_vclk(struct meson_dw_hdmi *dw_hdmi,
- struct drm_display_mode *mode)
+ const struct drm_display_mode *mode)
{
struct meson_drm *priv = dw_hdmi->priv;
int vic = drm_match_cea_mode(mode);
@@ -663,6 +667,10 @@ dw_hdmi_mode_valid(struct drm_connector *connector,
/* Encoder */
+static const u32 meson_dw_hdmi_out_bus_fmts[] = {
+ MEDIA_BUS_FMT_YUV8_1X24,
+};
+
static void meson_venc_hdmi_encoder_destroy(struct drm_encoder *encoder)
{
drm_encoder_cleanup(encoder);
@@ -672,16 +680,63 @@ static const struct drm_encoder_funcs meson_venc_hdmi_encoder_funcs = {
.destroy = meson_venc_hdmi_encoder_destroy,
};
-static int meson_venc_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
+static u32 *
+meson_venc_hdmi_encoder_get_out_bus_fmts(struct drm_bridge *bridge,
+ struct drm_bridge_state *bridge_state,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state,
+ unsigned int *num_output_fmts)
+{
+ u32 *output_fmts;
+
+ *num_output_fmts = ARRAY_SIZE(meson_dw_hdmi_out_bus_fmts);
+ output_fmts = kcalloc(*num_output_fmts, sizeof(*output_fmts),
+ GFP_KERNEL);
+ if (!output_fmts)
+ return NULL;
+
+ memcpy(output_fmts, meson_dw_hdmi_out_bus_fmts, *num_output_fmts);
+
+ return output_fmts;
+}
+
+static u32 *
+meson_venc_hdmi_encoder_get_inp_bus_fmts(struct drm_bridge *bridge,
+ struct drm_bridge_state *bridge_state,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state,
+ u32 output_fmt,
+ unsigned int *num_input_fmts)
+{
+ u32 *input_fmts = NULL;
+
+ if (output_fmt == meson_dw_hdmi_out_bus_fmts[0]) {
+ *num_input_fmts = 1;
+ input_fmts = kcalloc(*num_input_fmts,
+ sizeof(*input_fmts),
+ GFP_KERNEL);
+ if (!input_fmts)
+ return NULL;
+
+ input_fmts[0] = output_fmt;
+ } else {
+ *num_input_fmts = 0;
+ }
+
+ return input_fmts;
+}
+
+static int meson_venc_hdmi_encoder_atomic_check(struct drm_bridge *bridge,
+ struct drm_bridge_state *bridge_state,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
return 0;
}
-static void meson_venc_hdmi_encoder_disable(struct drm_encoder *encoder)
+static void meson_venc_hdmi_encoder_disable(struct drm_bridge *bridge)
{
- struct meson_dw_hdmi *dw_hdmi = encoder_to_meson_dw_hdmi(encoder);
+ struct meson_dw_hdmi *dw_hdmi = bridge_to_meson_dw_hdmi(bridge);
struct meson_drm *priv = dw_hdmi->priv;
DRM_DEBUG_DRIVER("\n");
@@ -693,9 +748,9 @@ static void meson_venc_hdmi_encoder_disable(struct drm_encoder *encoder)
writel_relaxed(0, priv->io_base + _REG(ENCP_VIDEO_EN));
}
-static void meson_venc_hdmi_encoder_enable(struct drm_encoder *encoder)
+static void meson_venc_hdmi_encoder_enable(struct drm_bridge *bridge)
{
- struct meson_dw_hdmi *dw_hdmi = encoder_to_meson_dw_hdmi(encoder);
+ struct meson_dw_hdmi *dw_hdmi = bridge_to_meson_dw_hdmi(bridge);
struct meson_drm *priv = dw_hdmi->priv;
DRM_DEBUG_DRIVER("%s\n", priv->venc.hdmi_use_enci ? "VENCI" : "VENCP");
@@ -706,11 +761,11 @@ static void meson_venc_hdmi_encoder_enable(struct drm_encoder *encoder)
writel_relaxed(1, priv->io_base + _REG(ENCP_VIDEO_EN));
}
-static void meson_venc_hdmi_encoder_mode_set(struct drm_encoder *encoder,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
+static void meson_venc_hdmi_encoder_mode_set(struct drm_bridge *bridge,
+ const struct drm_display_mode *mode,
+ const struct drm_display_mode *adjusted_mode)
{
- struct meson_dw_hdmi *dw_hdmi = encoder_to_meson_dw_hdmi(encoder);
+ struct meson_dw_hdmi *dw_hdmi = bridge_to_meson_dw_hdmi(bridge);
struct meson_drm *priv = dw_hdmi->priv;
int vic = drm_match_cea_mode(mode);
@@ -726,12 +781,16 @@ static void meson_venc_hdmi_encoder_mode_set(struct drm_encoder *encoder,
writel_relaxed(0, priv->io_base + _REG(VPU_HDMI_FMT_CTRL));
}
-static const struct drm_encoder_helper_funcs
- meson_venc_hdmi_encoder_helper_funcs = {
- .atomic_check = meson_venc_hdmi_encoder_atomic_check,
- .disable = meson_venc_hdmi_encoder_disable,
- .enable = meson_venc_hdmi_encoder_enable,
- .mode_set = meson_venc_hdmi_encoder_mode_set,
+static const struct drm_bridge_funcs meson_venc_hdmi_encoder_bridge_funcs = {
+ .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+ .atomic_get_output_bus_fmts = meson_venc_hdmi_encoder_get_out_bus_fmts,
+ .atomic_get_input_bus_fmts = meson_venc_hdmi_encoder_get_inp_bus_fmts,
+ .atomic_reset = drm_atomic_helper_bridge_reset,
+ .atomic_check = meson_venc_hdmi_encoder_atomic_check,
+ .enable = meson_venc_hdmi_encoder_enable,
+ .disable = meson_venc_hdmi_encoder_disable,
+ .mode_set = meson_venc_hdmi_encoder_mode_set,
};
/* DW HDMI Regmap */
@@ -852,6 +911,7 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master,
struct drm_device *drm = data;
struct meson_drm *priv = drm->dev_private;
struct dw_hdmi_plat_data *dw_plat_data;
+ struct drm_bridge *next_bridge;
struct drm_encoder *encoder;
struct resource *res;
int irq;
@@ -953,8 +1013,6 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master,
/* Encoder */
- drm_encoder_helper_add(encoder, &meson_venc_hdmi_encoder_helper_funcs);
-
ret = drm_encoder_init(drm, encoder, &meson_venc_hdmi_encoder_funcs,
DRM_MODE_ENCODER_TMDS, "meson_hdmi");
if (ret) {
@@ -962,6 +1020,9 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master,
return ret;
}
+ meson_dw_hdmi->bridge.funcs = &meson_venc_hdmi_encoder_bridge_funcs;
+ drm_bridge_attach(encoder, &meson_dw_hdmi->bridge, NULL);
+
encoder->possible_crtcs = BIT(0);
DRM_DEBUG_DRIVER("encoder initialized\n");
@@ -984,11 +1045,15 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master,
platform_set_drvdata(pdev, meson_dw_hdmi);
- meson_dw_hdmi->hdmi = dw_hdmi_bind(pdev, encoder,
- &meson_dw_hdmi->dw_plat_data);
+ meson_dw_hdmi->hdmi = dw_hdmi_probe(pdev,
+ &meson_dw_hdmi->dw_plat_data);
if (IS_ERR(meson_dw_hdmi->hdmi))
return PTR_ERR(meson_dw_hdmi->hdmi);
+ next_bridge = of_drm_find_bridge(pdev->dev.of_node);
+ if (next_bridge)
+ drm_bridge_attach(encoder, next_bridge, &meson_dw_hdmi->bridge);
+
DRM_DEBUG_DRIVER("HDMI controller initialized\n");
return 0;
--
2.22.0
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next prev parent reply other threads:[~2020-02-06 19:19 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-06 19:18 [PATCH v4 00/11] drm/bridge: dw-hdmi: implement bus-format negotiation and YUV420 support Neil Armstrong
2020-02-06 19:18 ` [PATCH v4 01/11] drm/bridge: dw-hdmi: set mtmdsclock for deep color Neil Armstrong
2020-03-02 9:05 ` Laurent Pinchart
2020-03-02 9:21 ` Neil Armstrong
2020-03-02 15:54 ` Neil Armstrong
2020-03-02 16:01 ` Laurent Pinchart
2020-02-06 19:18 ` [PATCH v4 02/11] drm/bridge: dw-hdmi: add max bpc connector property Neil Armstrong
2020-02-17 6:38 ` Jernej Škrabec
2020-02-21 8:50 ` Neil Armstrong
2020-03-02 9:18 ` Laurent Pinchart
2020-03-02 15:55 ` Neil Armstrong
2020-02-06 19:18 ` [PATCH v4 03/11] drm/bridge: dw-hdmi: Plug atomic state hooks to the default implementation Neil Armstrong
2020-02-07 10:57 ` Boris Brezillon
2020-03-02 9:56 ` Laurent Pinchart
2020-03-02 15:55 ` Neil Armstrong
2020-02-06 19:18 ` [PATCH v4 04/11] drm/bridge: synopsys: dw-hdmi: add bus format negociation Neil Armstrong
2020-02-07 11:02 ` Boris Brezillon
2020-02-07 13:36 ` Neil Armstrong
2020-02-29 7:42 ` Jernej Škrabec
2020-02-29 10:09 ` Jonas Karlman
2020-02-29 11:07 ` Jernej Škrabec
2020-02-29 12:15 ` Jonas Karlman
2020-02-29 14:42 ` Jernej Škrabec
2020-03-02 8:08 ` Neil Armstrong
2020-03-02 8:04 ` Neil Armstrong
2020-03-02 10:18 ` Laurent Pinchart
2020-03-02 15:57 ` Neil Armstrong
2020-02-06 19:18 ` [PATCH v4 05/11] drm/bridge: synopsys: dw-hdmi: allow ycbcr420 modes for >= 0x200a Neil Armstrong
2020-02-07 13:38 ` Neil Armstrong
2020-03-02 10:03 ` Laurent Pinchart
2020-03-02 15:58 ` Neil Armstrong
2020-02-06 19:18 ` [PATCH v4 06/11] drm/meson: venc: make drm_display_mode const Neil Armstrong
2020-02-07 13:39 ` Neil Armstrong
2020-03-02 9:59 ` Laurent Pinchart
2020-02-06 19:18 ` Neil Armstrong [this message]
2020-02-07 14:57 ` [PATCH v4 07/11] drm/meson: meson_dw_hdmi: add bridge and switch to drm_bridge_funcs Boris Brezillon
2020-02-07 15:36 ` Neil Armstrong
2020-02-06 19:18 ` [PATCH v4 08/11] drm/meson: dw-hdmi: stop enforcing input_bus_format Neil Armstrong
2020-02-06 19:18 ` [PATCH v4 09/11] drm/meson: venc: add support for YUV420 setup Neil Armstrong
2020-02-06 19:18 ` [PATCH v4 10/11] drm/meson: vclk: " Neil Armstrong
2020-02-06 19:18 ` [PATCH v4 11/11] drm/meson: Add YUV420 output support Neil Armstrong
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