This patch adds a HDMI driver to the DE2 based Allwinner's SoCs
as A83T and H3.
Audio and video are supported.
Signed-off-by: Jean-Francois Moine <moin...@free.fr>
---
.../devicetree/bindings/display/sunxi/hdmi.txt | 52 ++
drivers/gpu/drm/sunxi/Kconfig | 8 +
drivers/gpu/drm/sunxi/Makefile | 2 +
drivers/gpu/drm/sunxi/de2_hdmi.c | 396 +++++++++
drivers/gpu/drm/sunxi/de2_hdmi.h | 40 +
drivers/gpu/drm/sunxi/de2_hdmi_io.c | 927 +++++++++++++++++++++
drivers/gpu/drm/sunxi/de2_hdmi_io.h | 25 +
7 files changed, 1450 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/sunxi/hdmi.txt
create mode 100644 drivers/gpu/drm/sunxi/de2_hdmi.c
create mode 100644 drivers/gpu/drm/sunxi/de2_hdmi.h
create mode 100644 drivers/gpu/drm/sunxi/de2_hdmi_io.c
create mode 100644 drivers/gpu/drm/sunxi/de2_hdmi_io.h
diff --git a/Documentation/devicetree/bindings/display/sunxi/hdmi.txt
b/Documentation/devicetree/bindings/display/sunxi/hdmi.txt
new file mode 100644
index 0000000..0558c07
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/sunxi/hdmi.txt
@@ -0,0 +1,52 @@
+Allwinner HDMI Transmitter
+==========================
+
+The Allwinner HDMI transmitters are included in the SoCs.
+They support audio and video.
+
+Required properties:
+ - #address-cells : should be <1>
+ - #size-cells : should be <0>
+ - compatible : should be
+ "allwinner,sun8i-a83t-hdmi" or
+ "allwinner,sun8i-h3-hdmi"
+ - clocks : phandles to the HDMI clocks as described in
+ Documentation/devicetree/bindings/clock/clock-bindings.txt
+ - clock-names : must be
+ "gate" : bus gate
+ "clock" : streaming clock
+ "ddc-clock" : DDC clock
+ - resets : One or two phandles to the HDMI resets
+ - reset-names : must be
+ "hdmi0" and "hdmi1"
+
+Required nodes:
+ - port: Audio and video input port nodes with endpoint definitions
+ as defined in Documentation/devicetree/bindings/graph.txt.
+
+Example:
+
+ hdmi: hdmi@01ee0000 {
+ compatible = "allwinner,sun8i-a83t-hdmi";
+ reg = <0x01ee0000 0x20000>;
+ clocks = <&ccu CLK_BUS_HDMI>, <&ccu CLK_HDMI>,
+ <&ccu CLK_HDMI_DDC>;
+ clock-names = "gate", "clock", "ddc-clock";
+ resets = <&ccu RST_HDMI0>, <&ccu RST_HDMI1>;
+ reset-names = "hdmi0", "hdmi1";
+ ...
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 { /* video */
+ reg = <0>;
+ hdmi_lcd1: endpoint {
+ remote-endpoint = <&lcd1_hdmi>;
+ };
+ };
+ port@1 { /* audio */
+ reg = <1>;
+ hdmi_i2s2: endpoint {
+ remote-endpoint = <&i2s2_hdmi>;
+ };
+ };
+ };
diff --git a/drivers/gpu/drm/sunxi/Kconfig b/drivers/gpu/drm/sunxi/Kconfig
index 56bde2e..4c82153 100644
--- a/drivers/gpu/drm/sunxi/Kconfig
+++ b/drivers/gpu/drm/sunxi/Kconfig
@@ -19,3 +19,11 @@ config DRM_SUNXI_DE2
Choose this option if your Allwinner chipset has the DE2 interface
as the A64, A83T and H3. If M is selected the module will be called
sunxi-de2-drm.
+
+config DRM_SUNXI_DE2_HDMI
+ tristate "Support for DE2 HDMI"
+ depends on DRM_SUNXI_DE2
+ select SND_SOC_SUNXI_HDMI if SND_SOC
+ help
+ Choose this option if you use want HDMI on DE2.
+ If M is selected the module will be called sunxi-de2-hdmi.
diff --git a/drivers/gpu/drm/sunxi/Makefile b/drivers/gpu/drm/sunxi/Makefile
index 62220cb..a268069 100644
--- a/drivers/gpu/drm/sunxi/Makefile
+++ b/drivers/gpu/drm/sunxi/Makefile
@@ -3,5 +3,7 @@
#
sunxi-de2-drm-objs := de2_drv.o de2_de.o de2_crtc.o de2_plane.o
+sunxi-de2-hdmi-objs := de2_hdmi.o de2_hdmi_io.o
obj-$(CONFIG_DRM_SUNXI_DE2) += sunxi-de2-drm.o
+obj-$(CONFIG_DRM_SUNXI_DE2_HDMI) += sunxi-de2-hdmi.o
diff --git a/drivers/gpu/drm/sunxi/de2_hdmi.c b/drivers/gpu/drm/sunxi/de2_hdmi.c
new file mode 100644
index 0000000..a2324cc
--- /dev/null
+++ b/drivers/gpu/drm/sunxi/de2_hdmi.c
@@ -0,0 +1,396 @@
+/*
+ * Allwinner DRM driver - HDMI
+ *
+ * Copyright (C) 2016 Jean-Francois Moine <moin...@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/component.h>
+#include <linux/clk.h>
+#include <linux/hdmi.h>
+#include <linux/of_device.h>
+#include <linux/of_graph.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_of.h>
+
+#include "de2_hdmi.h"
+#include "de2_hdmi_io.h"
+
+static const struct of_device_id de2_hdmi_dt_ids[] = {
+ { .compatible = "allwinner,sun8i-a83t-hdmi",
+ .data = (void *) SOC_A83T },
+ { .compatible = "allwinner,sun8i-h3-hdmi",
+ .data = (void *) SOC_H3 },
+ { }
+};
+MODULE_DEVICE_TABLE(of, de2_hdmi_dt_ids);
+
+#define conn_to_priv(x) \
+ container_of(x, struct de2_hdmi_priv, connector)
+
+#define enc_to_priv(x) \
+ container_of(x, struct de2_hdmi_priv, encoder)
+
+#define codec_to_priv(x) \
+ container_of(x, struct de2_hdmi_priv, codec)
+
+#if IS_ENABLED(CONFIG_SND_SOC_SUNXI_HDMI)
+/* --- audio functions --- */
+static int de2_hdmi_set_audio_input(struct device *dev,
+ int enable,
+ unsigned sample_rate,
+ unsigned sample_bit)
+{
+ struct de2_hdmi_priv *priv = codec_to_priv(dev_get_drvdata(dev));
+ int ret;
+
+ if (!enable)
+ return 0;
+
+ mutex_lock(&priv->mutex);
+ ret = hdmi_io_audio(priv, sample_rate, sample_bit);
+ mutex_unlock(&priv->mutex);
+
+ return ret;
+}
+#endif
+
+/* --- encoder functions --- */
+
+static void de2_hdmi_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct de2_hdmi_priv *priv = enc_to_priv(encoder);
+
+ priv->cea_mode = drm_match_cea_mode(mode);
+
+ DRM_DEBUG_DRIVER("cea_mode %d\n", priv->cea_mode);
+
+ clk_set_rate(priv->clk, mode->clock * 1000);
+
+ mutex_lock(&priv->mutex);
+ hdmi_io_video_mode(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+static void de2_hdmi_encoder_enable(struct drm_encoder *encoder)
+{
+ struct de2_hdmi_priv *priv = enc_to_priv(encoder);
+
+ mutex_lock(&priv->mutex);
+ hdmi_io_video_on(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+static void de2_hdmi_encoder_disable(struct drm_encoder *encoder)
+{
+ struct de2_hdmi_priv *priv = enc_to_priv(encoder);
+
+ mutex_lock(&priv->mutex);
+ hdmi_io_video_off(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+static const struct drm_encoder_helper_funcs de2_hdmi_encoder_helper_funcs = {
+ .mode_set = de2_hdmi_encoder_mode_set,
+ .enable = de2_hdmi_encoder_enable,
+ .disable = de2_hdmi_encoder_disable,
+};
+
+static const struct drm_encoder_funcs de2_hdmi_encoder_funcs = {
+ .destroy = drm_encoder_cleanup,
+};
+
+/* --- connector functions --- */
+static int de2_hdmi_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ struct de2_hdmi_priv *priv = conn_to_priv(connector);
+ int cea_mode = drm_match_cea_mode(mode);
+
+ if (hdmi_io_mode_valid(cea_mode) < 0)
+ return MODE_NOMODE;
+
+ if (connector->eld[0])
+ priv->codec.eld = connector->eld; /* audio parameters */
+
+ return MODE_OK;
+}
+
+static enum drm_connector_status de2_hdmi_connector_detect(
+ struct drm_connector *connector, bool force)
+{
+ struct de2_hdmi_priv *priv = conn_to_priv(connector);
+ int ret;
+
+ mutex_lock(&priv->mutex);
+ ret = hdmi_io_get_hpd(priv);
+ mutex_unlock(&priv->mutex);
+
+ return ret ? connector_status_connected :
+ connector_status_disconnected;
+}
+
+static int read_edid_block(void *data, u8 *buf,
+ unsigned int blk, size_t length)
+{
+ struct de2_hdmi_priv *priv = data;
+ int ret;
+
+ mutex_lock(&priv->mutex);
+ ret = hdmi_io_ddc_read(priv,
+ blk / 2, (blk & 1) ? 128 : 0,
+ length, buf);
+ mutex_unlock(&priv->mutex);
+
+ return ret;
+}
+
+static int de2_hdmi_connector_get_modes(struct drm_connector *connector)
+{
+ struct de2_hdmi_priv *priv = conn_to_priv(connector);
+ struct edid *edid;
+ int n;
+
+ DRM_DEBUG_DRIVER("\n");
+
+ priv->codec.eld = NULL;
+
+ edid = drm_do_get_edid(connector, read_edid_block, priv);
+
+ if (!edid) {
+ dev_warn(priv->dev, "failed to read EDID\n");
+ if (!connector->cmdline_mode.specified)
+ return 0;
+
+ return drm_add_modes_noedid(connector,
+ connector->cmdline_mode.xres,
+ connector->cmdline_mode.yres);
+ }
+
+ drm_mode_connector_update_edid_property(connector, edid);
+ n = drm_add_edid_modes(connector, edid);
+
+ drm_edid_to_eld(connector, edid);
+
+ kfree(edid);
+
+ DRM_DEBUG_DRIVER("%s EDID ok %d modes\n",
+ connector->eld[0] ? "HDMI" : "DVI", n);
+
+ return n;
+}
+
+static const
+struct drm_connector_helper_funcs de2_hdmi_connector_helper_funcs = {
+ .get_modes = de2_hdmi_connector_get_modes,
+ .mode_valid = de2_hdmi_connector_mode_valid,
+};
+
+static const struct drm_connector_funcs de2_hdmi_connector_funcs = {
+ .dpms = drm_atomic_helper_connector_dpms,
+ .reset = drm_atomic_helper_connector_reset,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .detect = de2_hdmi_connector_detect,
+ .destroy = drm_connector_cleanup,
+ .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+};
+
+static void de2_hdmi_cleanup(struct de2_hdmi_priv *priv)
+{
+ clk_disable_unprepare(priv->clk_ddc);
+ clk_disable_unprepare(priv->clk);
+ clk_disable_unprepare(priv->gate);
+ if (!IS_ERR_OR_NULL(priv->rstc1))
+ reset_control_assert(priv->rstc1);
+ if (!IS_ERR_OR_NULL(priv->rstc0))
+ reset_control_assert(priv->rstc0);
+}
+
+static int de2_hdmi_bind(struct device *dev, struct device *master, void *data)
+{
+ struct drm_device *drm = data;
+ struct de2_hdmi_priv *priv = codec_to_priv(dev_get_drvdata(dev));
+ struct drm_encoder *encoder = &priv->encoder;
+ struct drm_connector *connector = &priv->connector;
+ int ret;
+
+ encoder->possible_crtcs =
+ drm_of_find_possible_crtcs(drm, dev->of_node);
+
+ /* if no CRTC, delay */
+ if (encoder->possible_crtcs == 0)
+ return -EPROBE_DEFER;
+
+ /* HDMI init */
+ ret = reset_control_deassert(priv->rstc0);
+ if (ret)
+ goto err;
+ ret = reset_control_deassert(priv->rstc1);
+ if (ret)
+ goto err;
+ if (!IS_ERR(priv->gate)) {
+ ret = clk_prepare_enable(priv->gate);
+ if (ret)
+ goto err;
+ }
+ ret = clk_prepare_enable(priv->clk);
+ if (ret)
+ goto err;
+ ret = clk_prepare_enable(priv->clk_ddc);
+ if (ret)
+ goto err;
+
+ mutex_lock(&priv->mutex);
+ hdmi_io_init(priv);
+ hdmi_io_reset(priv); /* hpd reset */
+ mutex_unlock(&priv->mutex);
+
+ /* encoder init */
+ ret = drm_encoder_init(drm, encoder, &de2_hdmi_encoder_funcs,
+ DRM_MODE_ENCODER_TMDS, NULL);
+ if (ret)
+ goto err;
+
+ drm_encoder_helper_add(encoder, &de2_hdmi_encoder_helper_funcs);
+
+ /* connector init */
+ ret = drm_connector_init(drm, connector,
+ &de2_hdmi_connector_funcs,
+ DRM_MODE_CONNECTOR_HDMIA);
+ if (ret)
+ goto err_connector;
+
+ connector->interlace_allowed = 1;
+ connector->polled = DRM_CONNECTOR_POLL_CONNECT |
+ DRM_CONNECTOR_POLL_DISCONNECT;
+ drm_connector_helper_add(connector,
+ &de2_hdmi_connector_helper_funcs);
+
+ drm_mode_connector_attach_encoder(connector, encoder);
+
+ return 0;
+
+err_connector:
+ drm_encoder_cleanup(encoder);
+err:
+ de2_hdmi_cleanup(priv);
+ DRM_DEBUG_DRIVER("err %d\n", ret);
+ return ret;
+}
+
+static void de2_hdmi_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct de2_hdmi_priv *priv = codec_to_priv(dev_get_drvdata(dev));
+
+ drm_connector_cleanup(&priv->connector);
+ drm_encoder_cleanup(&priv->encoder);
+ de2_hdmi_cleanup(priv);
+}
+
+static const struct component_ops de2_hdmi_ops = {
+ .bind = de2_hdmi_bind,
+ .unbind = de2_hdmi_unbind,
+};
+
+static int de2_hdmi_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct de2_hdmi_priv *priv;
+ struct resource *res;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, &priv->codec);
+ priv->dev = dev;
+
+ mutex_init(&priv->mutex);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "failed to get memory resource\n");
+ return -ENXIO;
+ }
+ priv->mmio = devm_ioremap_resource(dev, res);
+ if (IS_ERR(priv->mmio)) {
+ dev_err(dev, "failed to map registers\n");
+ return PTR_ERR(priv->mmio);
+ }
+
+ priv->gate = devm_clk_get(dev, "gate"); /* optional */
+
+ priv->clk = devm_clk_get(dev, "clock");
+ if (IS_ERR(priv->clk)) {
+ dev_err(dev, "hdmi clock err %d\n",
+ (int) PTR_ERR(priv->clk));
+ return PTR_ERR(priv->clk);
+ }
+ priv->clk_ddc = devm_clk_get(dev, "ddc-clock");
+ if (IS_ERR(priv->clk_ddc)) {
+ dev_err(dev, "hdmi-ddc clock err %d\n",
+ (int) PTR_ERR(priv->clk_ddc));
+ return PTR_ERR(priv->clk_ddc);
+ }
+
+ priv->rstc0 = devm_reset_control_get(dev, "hdmi0");
+ if (IS_ERR(priv->rstc0)) {
+ dev_err(dev, "reset controller err %d\n",
+ (int) PTR_ERR(priv->rstc0));
+ return PTR_ERR(priv->rstc0);
+ }
+
+ priv->rstc1 = devm_reset_control_get(dev, "hdmi1");
+ if (IS_ERR(priv->rstc1)) {
+ dev_err(dev, "reset controller err %d\n",
+ (int) PTR_ERR(priv->rstc1));
+ return PTR_ERR(priv->rstc1);
+ }
+
+ priv->soc_type = (int) of_match_device(de2_hdmi_dt_ids,
+ &pdev->dev)->data;
+
+ if (IS_ENABLED(CONFIG_SND_SOC_SUNXI_HDMI)) {
+ priv->codec.set_audio_input = de2_hdmi_set_audio_input;
+ sunxi_hdmi_codec_register(dev);
+ }
+
+ return component_add(dev, &de2_hdmi_ops);
+}
+
+static int de2_hdmi_remove(struct platform_device *pdev)
+{
+ if (IS_ENABLED(CONFIG_SND_SOC_SUNXI_HDMI))
+ sunxi_hdmi_codec_unregister(&pdev->dev);
+ component_del(&pdev->dev, &de2_hdmi_ops);
+
+ return 0;
+}
+
+static struct platform_driver de2_hdmi_driver = {
+ .probe = de2_hdmi_probe,
+ .remove = de2_hdmi_remove,
+ .driver = {
+ .name = "sunxi-de2-hdmi",
+ .of_match_table = of_match_ptr(de2_hdmi_dt_ids),
+ },
+};
+
+module_platform_driver(de2_hdmi_driver);
+
+MODULE_AUTHOR("Jean-Francois Moine <moin...@free.fr>");
+MODULE_DESCRIPTION("Allwinner DE2 HDMI encoder/connector");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/sunxi/de2_hdmi.h b/drivers/gpu/drm/sunxi/de2_hdmi.h
new file mode 100644
index 0000000..915d609
--- /dev/null
+++ b/drivers/gpu/drm/sunxi/de2_hdmi.h
@@ -0,0 +1,40 @@
+#ifndef __DE2_HDMI_H__
+#define __DE2_HDMI_H__
+/*
+ * Copyright (C) 2016 Jean-François Moine
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#include <linux/clk.h>
+#include <linux/reset.h>
+#include <drm/drmP.h>
+#include <sound/sunxi_hdmi.h>
+
+/* SoC types */
+#define SOC_A83T 0
+#define SOC_H3 1
+
+struct de2_hdmi_priv {
+ struct device *dev;
+ void __iomem *mmio;
+
+ struct drm_encoder encoder;
+ struct drm_connector connector;
+
+ struct clk *clk;
+ struct clk *clk_ddc;
+ struct clk *gate;
+ struct reset_control *rstc0;
+ struct reset_control *rstc1;
+
+ struct mutex mutex;
+ u8 soc_type;
+ u8 cea_mode;
+ struct sunxi_hdmi_codec codec;
+};
+
+#endif /* __DE2_HDMI_H__ */
diff --git a/drivers/gpu/drm/sunxi/de2_hdmi_io.c
b/drivers/gpu/drm/sunxi/de2_hdmi_io.c
new file mode 100644
index 0000000..127b220
--- /dev/null
+++ b/drivers/gpu/drm/sunxi/de2_hdmi_io.c
@@ -0,0 +1,927 @@
+/*
+ * Allwinner A83T and H3 HDMI lowlevel functions
+ *
+ * Copyright (C) 2016 Jean-Francois Moine <moin...@free.fr>
+ * Copyright (c) 2016 Allwinnertech Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+/*
+ * The HDMI controller in the A83T and H3 seems to be a
+ * Synopsys DesignWare HDMI controller.
+ * The PHYs are unknown.
+ * Documentation:
+ * https://linux-sunxi.org/DWC_HDMI_Controller
+ * https://www.synopsys.com/dw/doc.php/ds/c/dwc_hdmi_tx_csds.pdf
+ */
+
+#include <linux/hdmi.h>
+
+#include "de2_hdmi.h"
+#include "de2_hdmi_io.h"
+
+/* DW registers (obfuscated addresses) */
+
+/* Interrupt Registers */
+#define R_0100_HDMI_IH_FC_STAT0 0x0010
+#define R_0101_HDMI_IH_FC_STAT1 0x0011
+#define R_0102_HDMI_IH_FC_STAT2 0x8010
+#define R_0103_HDMI_IH_AS_STAT0 0x8011
+#define R_0104_HDMI_IH_PHY_STAT0 0x0012
+#define R_0105_HDMI_IH_I2CM_STAT0 0x0013
+#define R_0106_HDMI_IH_CEC_STAT0 0x8012
+#define R_0107_HDMI_IH_VP_STAT0 0x8013
+#define R_0108_HDMI_IH_I2CMPHY_STAT0 0x4010
+#define R_01ff_HDMI_IH_MUTE 0xf01f
+
+/* Video Sample Registers */
+#define R_0200_HDMI_TX_INVID0 0x0800
+#define R_0201_HDMI_TX_INSTUFFING 0x0801
+#define R_0202_HDMI_TX_GYDATA0 0x8800
+#define R_0203_HDMI_TX_GYDATA1 0x8801
+#define R_0204_HDMI_TX_RCRDATA0 0x0802
+#define R_0205_HDMI_TX_RCRDATA1 0x0803
+#define R_0206_HDMI_TX_BCBDATA0 0x8802
+#define R_0207_HDMI_TX_BCBDATA1 0x8803
+
+/* Video Packetizer Registers */
+#define R_0801_HDMI_VP_PR_CD 0x0401
+#define R_0802_HDMI_VP_STUFF 0x8400
+#define R_0803_HDMI_VP_REMAP 0x8401
+#define R_0804_HDMI_VP_CONF 0x0402
+#define R_0807_HDMI_VP_MASK 0x8403
+
+/* Frame Composer Registers */
+#define R_1000_HDMI_FC_INVIDCONF 0x0040
+#define HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH 0x10
+#define R_1001_HDMI_FC_INHACTV0 0x0041
+#define R_1002_HDMI_FC_INHACTV1 0x8040
+#define R_1003_HDMI_FC_INHBLANK0 0x8041
+#define R_1004_HDMI_FC_INHBLANK1 0x0042
+#define R_1005_HDMI_FC_INVACTV0 0x0043
+#define R_1006_HDMI_FC_INVACTV1 0x8042
+#define R_1007_HDMI_FC_INVBLANK 0x8043
+#define R_1008_HDMI_FC_HSYNCINDELAY0 0x4040
+#define R_1009_HDMI_FC_HSYNCINDELAY1 0x4041
+#define R_100a_HDMI_FC_HSYNCINWIDTH1 0xc040
+#define R_100b_HDMI_FC_HSYNCINWIDTH1 0xc041
+#define R_100c_HDMI_FC_VSYNCINDELAY 0x4042
+#define R_100d_HDMI_FC_VSYNCINWIDTH 0x4043
+#define R_1011_HDMI_FC_CTRLDUR 0x0045
+#define R_1012_HDMI_FC_EXCTRLDUR 0x8044
+#define R_1013_HDMI_FC_EXCTRLSPAC 0x8045
+#define R_1014_HDMI_FC_CH0PREAM 0x0046
+#define R_1015_HDMI_FC_CH1PREAM 0x0047
+#define R_1016_HDMI_FC_CH2PREAM 0x8046
+#define R_1018_HDMI_FC_GCP 0x4044
+#define R_1019_HDMI_FC_AVICONF0 0x4045
+#define HDMI_FC_AVICONF0_SCAN_INFO_UNDERSCAN 0x20
+#define R_101a_HDMI_FC_AVICONF1 0xc044
+#define R_101b_HDMI_FC_AVICONF2 0xc045
+#define R_101c_HDMI_FC_AVIVID 0x4046
+#define R_1025_HDMI_FC_AUDICONF0 0x2043
+#define R_1026_HDMI_FC_AUDICONF1 0xa042
+#define R_1027_HDMI_FC_AUDICONF2 0xa043
+#define R_1028_HDMI_FC_AUDICONF3 0x6040
+#define R_1029_HDMI_FC_VSDIEEEID0 0x6041
+#define R_1030_HDMI_FC_VSDIEEEID1 0x2044
+#define R_1031_HDMI_FC_VSDIEEEID2 0x2045
+#define R_1032_HDMI_FC_VSDPAYLOAD0 0xa044
+#define R_1033_HDMI_FC_VSDPAYLOAD1 0xa045
+#define R_1034_HDMI_FC_VSDPAYLOAD2 0x2046
+#define R_1063_HDMI_FC_AUDSCONF 0xa049
+#define R_1065_HDMI_FC_AUDSV 0x204b
+#define R_1066_HDMI_FC_AUDSU 0xa04a
+#define R_1067_HDMI_FC_AUDSCHNLS0 0xa04b
+#define HDMI_FC_AUDSCHNLS0_CGMSA 0x30
+#define R_1068_HDMI_FC_AUDSCHNLS1 0x6048
+#define R_1069_HDMI_FC_AUDSCHNLS2 0x6049
+#define R_106a_HDMI_FC_AUDSCHNLS3 0xe048
+#define HDMI_FC_AUDSCHNLS3_OIEC_CH0(v) (v)
+#define HDMI_FC_AUDSCHNLS3_OIEC_CH1(v) (v << 4)
+#define R_106b_HDMI_FC_AUDSCHNLS4 0xe049
+#define HDMI_FC_AUDSCHNLS4_OIEC_CH2(v) (v)
+#define HDMI_FC_AUDSCHNLS4_OIEC_CH3(v) (v << 4)
+#define R_106c_HDMI_FC_AUDSCHNLS5 0x604a
+#define HDMI_FC_AUDSCHNLS5_OIEC_CH0(v) (v)
+#define HDMI_FC_AUDSCHNLS5_OIEC_CH1(v) (v << 4)
+#define R_106d_HDMI_FC_AUDSCHNLS6 0x604b
+#define HDMI_FC_AUDSCHNLS6_OIEC_CH2(v) (v)
+#define HDMI_FC_AUDSCHNLS6_OIEC_CH3(v) (v << 4)
+#define R_106e_HDMI_FC_AUDSCHNLS7 0xe04a
+#define R_106f_HDMI_FC_AUDSCHNLS8 0xe04b
+#define HDMI_FC_AUDSCHNLS8_WORDLENGTH(v) (v)
+#define R_10b3_HDMI_FC_DATAUTO0 0xb045
+#define R_10b4_HDMI_FC_DATAUTO1 0x3046
+#define R_10b5_HDMI_FC_DATAUTO2 0x3047
+#define R_10d2_HDMI_FC_MASK0 0x904c
+#define R_10d6_HDMI_FC_MASK1 0x904e
+#define R_10da_HDMI_FC_MASK2 0xd04c
+#define R_10e0_HDMI_FC_PRCONF 0x3048
+#define R_1103_HDMI_FC_GMD_CONF 0x8051
+#define R_1104_HDMI_FC_GMD_HB 0x0052
+#define R_1200_HDMI_FC_DBGFORCE 0x0840
+#define HDMI_FC_DBGFORCE_FORCEAUDIO BIT(4)
+#define HDMI_FC_DBGFORCE_FORCEVIDEO BIT(0)
+#define R_1219_HDMI_FC_DBGTMDS0 0x4845
+
+/* HDMI Source PHY Registers */
+#define R_3000_HDMI_PHY_CONF0 0x0240
+#define HDMI_PHY_CONF0_PDZ BIT(7)
+#define HDMI_PHY_CONF0_ENTMDS BIT(6)
+#define HDMI_PHY_CONF0_SPARECTRL BIT(5)
+#define HDMI_PHY_CONF0_GEN2_PDDQ BIT(4)
+#define HDMI_PHY_CONF0_GEN2_TXPWRON BIT(3)
+#define HDMI_PHY_CONF0_GEN2_ENHPDRXSENSE BIT(2)
+#define HDMI_PHY_CONF0_SELDATAENPOL BIT(1)
+#define HDMI_PHY_CONF0_SELDIPIF BIT(0)
+#define R_3001_HDMI_PHY_TST0 0x0241
+#define HDMI_PHY_TST0_TSTCLR BIT(5)
+#define R_3005_HDMI_PHY_INT0 0x0243
+#define R_3006_HDMI_PHY_MASK0 0x8242
+
+/* HDMI Master PHY Registers */
+#define R_3020_HDMI_PHY_I2CM_SLAVE_ADDR 0x2240
+#define HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2 0x69
+#define R_3021_HDMI_PHY_I2CM_ADDRESS_ADDR 0x2241
+#define R_3022_HDMI_PHY_I2CM_DATAO_1_ADDR 0xa240
+#define R_3023_HDMI_PHY_I2CM_DATAO_0_ADDR 0xa241
+#define R_3026_HDMI_PHY_I2CM_OPERATION_ADDR 0xa242
+#define HDMI_PHY_I2CM_OPERATION_ADDR_WRITE 0x10
+#define R_3027_HDMI_PHY_I2CM_INT_ADDR 0xa243
+#define R_3028_HDMI_PHY_I2CM_CTLINT_ADDR 0x6240
+
+/* Audio Sampler Registers */
+#define R_3100_HDMI_AUD_CONF0 0x0250
+#define R_3101_HDMI_AUD_CONF1 0x0251
+#define R_3102_HDMI_AUD_INT 0x8250
+#define R_3103_HDMI_AUD_CONF2 0x8251
+#define R_3200_HDMI_AUD_N1 0x0a40
+#define R_3201_HDMI_AUD_N2 0x0a41
+#define R_3202_HDMI_AUD_N3 0x8a40
+#define R_3205_HDMI_AUD_CTS3 0x0a43
+#define R_3206_HDMI_AUD_INPUTCLKFS 0x8a42
+#define R_3302_HDMI_AUD_SPDIFINT 0x8a50
+
+/* Generic Parallel Audio Interface Registers */
+#define R_3506_HDMI_GP_POL 0x8272
+
+/* Main Controller Registers */
+#define R_4001_HDMI_MC_CLKDIS 0x0081
+#define HDMI_MC_CLKDIS_HDCPCLK_DISABLE BIT(6)
+#define HDMI_MC_CLKDIS_AUDCLK_DISABLE BIT(3)
+#define HDMI_MC_CLKDIS_TMDSCLK_DISABLE BIT(1)
+#define R_4002_HDMI_MC_SWRSTZ 0x8080
+#define R_4004_HDMI_MC_FLOWCTRL 0x0082
+#define R_4005_HDMI_MC_PHYRSTZ 0x0083
+#define HDMI_MC_PHYRSTZ_DEASSERT BIT(0)
+
+/* HDCP Encryption Engine Registers */
+#define R_5000_HDMI_A_HDCPCFG0 0x00c0
+#define R_5001_HDMI_A_HDCPCFG1 0x00c1
+#define HDMI_A_HDCPCFG1_PH2UPSHFTENC BIT(2)
+#define HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE BIT(1)
+#define HDMI_A_HDCPCFG1_SWRESET BIT(0)
+#define R_5008_HDMI_A_APIINTMSK 0x40c0
+#define R_5009_HDMI_A_VIDPOLCFG 0x40c1
+#define HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_HIGH BIT(4)
+
+/* CEC Engine Registers */
+#define R_7d02_HDMI_CEC_MASK 0x86f0
+
+/* I2C Master Registers (E-DDC) */
+#define R_7e00_HDMI_I2CM_SLAVE 0x0ee0
+#define R_7e01_HDMI_I2CM_ADDRESS 0x0ee1
+#define R_7e03_HDMI_I2CM_DATAI 0x8ee1
+#define R_7e04_HDMI_I2CM_OPERATION 0x0ee2
+#define HDMI_I2CM_OPERATION_DDC_READ 0x02
+#define R_7e05_HDMI_I2CM_INT 0x0ee3
+#define R_7e06_HDMI_I2CM_CTLINT 0x8ee2
+#define R_7e07_HDMI_I2CM_DIV 0x8ee3
+#define R_7e08_HDMI_I2CM_SEGADDR 0x4ee0
+#define R_7e09_HDMI_I2CM_SOFTRSTZ 0x4ee1
+#define R_7e0a_HDMI_I2CM_SEGPTR 0xcee0
+#define R_7e0b_HDMI_I2CM_SS_SCL_HCNT_1_ADDR 0xcee1
+#define R_7e0c_HDMI_I2CM_SS_SCL_HCNT_0_ADDR 0x4ee2
+#define R_7e0d_HDMI_I2CM_SS_SCL_LCNT_1_ADDR 0x4ee3
+#define R_7e0e_HDMI_I2CM_SS_SCL_LCNT_0_ADDR 0xcee2
+#define R_7e0f_HDMI_I2CM_FS_SCL_HCNT_1_ADDR 0xcee3
+#define R_7e10_HDMI_I2CM_FS_SCL_HCNT_0_ADDR 0x0ee4
+#define R_7e11_HDMI_I2CM_FS_SCL_LCNT_1_ADDR 0x0ee5
+
+/*
+ * [0] = vic (CEA Video ID)
+ * [1] used in hdmi_phy_set / hdmi_io_audio
+ * [2..16] used in hdmi_io_video_mode
+ */
+static const struct para_tab {
+ u32 para[17];
+} ptbl[] = {
+ {{ 6, 1, 1, 1, 5, 3, 0, 1, 4, 0, 0, 160, 20, 38, 124, 240,
22}},
+ {{ 21, 11, 1, 1, 5, 3, 1, 1, 2, 0, 0, 160, 32, 24, 126, 32,
24}},
+ {{ 2, 11, 0, 0, 2, 6, 1, 0, 9, 0, 0, 208, 138, 16, 62, 224,
45}},
+ {{ 17, 11, 0, 0, 2, 5, 2, 0, 5, 0, 0, 208, 144, 12, 64, 64,
49}},
+ {{ 19, 4, 0, 0x60, 5, 5, 2, 2, 5, 1, 0, 0, 188, 184, 40, 208,
30}},
+ {{ 4, 4, 0, 0x60, 5, 5, 2, 1, 5, 0, 0, 0, 114, 110, 40, 208,
30}},
+ {{ 20, 4, 0, 0x61, 7, 5, 4, 2, 2, 2, 0, 128, 208, 16, 44, 56,
22}},
+ {{ 5, 4, 0, 0x60, 7, 5, 4, 1, 2, 0, 0, 128, 24, 88, 44, 56,
22}},
+ {{ 31, 2, 0, 0x60, 7, 5, 4, 2, 4, 2, 0, 128, 208, 16, 44, 56,
45}},
+ {{ 16, 2, 0, 0x60, 7, 5, 4, 1, 4, 0, 0, 128, 24, 88, 44, 56,
45}},
+ {{ 32, 4, 0, 0x60, 7, 5, 4, 3, 4, 2, 0, 128, 62, 126, 44, 56,
45}},
+ {{ 33, 4, 0, 0, 7, 5, 4, 2, 4, 2, 0, 128, 208, 16, 44, 56,
45}},
+ {{ 34, 4, 0, 0, 7, 5, 4, 1, 4, 0, 0, 128, 24, 88, 44, 56,
45}},
+#if 0
+ {{160, 2, 0, 0x60, 7, 5, 8, 3, 4, 1, 0, 128, 62, 126, 44, 157,
45}},
+ {{147, 2, 0, 0x60, 5, 5, 5, 2, 5, 1, 0, 0, 188, 184, 40, 190,
30}},
+ {{132, 2, 0, 0x60, 5, 5, 5, 1, 5, 0, 0, 0, 114, 110, 40, 160,
30}},
+ {{257, 1, 0, 0x60, 15, 10, 8, 2, 8, 0, 0, 0, 48, 176, 88, 112,
90}},
+ {{258, 1, 0, 0x60, 15, 10, 8, 5, 8, 4, 0, 0, 160, 32, 88, 112,
90}},
+#endif
+};
+
+#if IS_ENABLED(CONFIG_SND_SOC_SUNXI_HDMI)
+/* HDMI_FC_AUDSCHNLS7 values */
+static const struct pcm_sf {
+ u32 sf;
+ unsigned char cs_sf;
+} sf[] = {
+ {44100, 0x00},
+ {48000, 0x02},
+ {96000, 0x0a},
+ {192000,0x0e},
+ {22050, 0x04},
+ {24000, 0x06},
+ {32000, 0x03},
+ {88200, 0x08},
+ {768000,0x09},
+ {176400,0x0c},
+};
+
+static const struct {
+ int rate;
+ unsigned short n1, n2;
+} n_table[] = {
+ {32000, 3072, 4096},
+ {44100, 4704, 6272},
+ {88200, 4704*2, 6272*2},
+ {176400,4704*4, 6272*4},
+ {48000, 5120, 6144},
+ {96000, 5120*2, 6144*2},
+ {192000,5120*4, 6144*4},
+};
+#endif
+
+static inline void hdmi_writeb(struct de2_hdmi_priv *priv, u32 addr, u8 data)
+{
+ writeb_relaxed(data, priv->mmio + addr);
+}
+
+static inline void hdmi_writel(struct de2_hdmi_priv *priv, u32 addr, u32 data)
+{
+ writel_relaxed(data, priv->mmio + addr);
+}
+
+static inline u8 hdmi_readb(struct de2_hdmi_priv *priv, u32 addr)
+{
+ return readb_relaxed(priv->mmio + addr);
+}
+
+static inline u32 hdmi_readl(struct de2_hdmi_priv *priv, u32 addr)
+{
+ return readl_relaxed(priv->mmio + addr);
+}
+
+static void hdmi_lock(struct de2_hdmi_priv *priv)
+{
+ hdmi_writeb(priv, 0x10010, 0x45);
+ hdmi_writeb(priv, 0x10011, 0x45);
+ hdmi_writeb(priv, 0x10012, 0x52);
+ hdmi_writeb(priv, 0x10013, 0x54);
+}
+static void hdmi_unlock(struct de2_hdmi_priv *priv)
+{
+ hdmi_writeb(priv, 0x10010, 0x52);
+ hdmi_writeb(priv, 0x10011, 0x54);
+ hdmi_writeb(priv, 0x10012, 0x41);
+ hdmi_writeb(priv, 0x10013, 0x57);
+}
+
+static void hdmi_inner_init(struct de2_hdmi_priv *priv)
+{
+ u8 clkdis = priv->soc_type == SOC_H3 ?
+ ~HDMI_MC_CLKDIS_TMDSCLK_DISABLE : 0xff;
+
+ hdmi_lock(priv);
+
+ /* software reset */
+ hdmi_writeb(priv, R_4002_HDMI_MC_SWRSTZ, 0x00);
+ udelay(2);
+
+ /* mask all interrupts */
+ hdmi_writeb(priv, R_01ff_HDMI_IH_MUTE, 0x00);
+ hdmi_writeb(priv, R_0807_HDMI_VP_MASK, 0xff);
+ hdmi_writeb(priv, R_10d2_HDMI_FC_MASK0, 0xff);
+ hdmi_writeb(priv, R_10d6_HDMI_FC_MASK1, 0xff);
+ hdmi_writeb(priv, R_10da_HDMI_FC_MASK2, 0xff);
+ hdmi_writeb(priv, R_3102_HDMI_AUD_INT, 0xff);
+ hdmi_writeb(priv, R_3302_HDMI_AUD_SPDIFINT, 0xff);
+ hdmi_writeb(priv, R_3506_HDMI_GP_POL, 0xff);
+ hdmi_writeb(priv, R_5008_HDMI_A_APIINTMSK, 0xff);
+ hdmi_writeb(priv, R_7d02_HDMI_CEC_MASK, 0xff);
+ hdmi_writeb(priv, R_7e05_HDMI_I2CM_INT, 0xff);
+ hdmi_writeb(priv, R_7e06_HDMI_I2CM_CTLINT, 0xff);
+
+ hdmi_writeb(priv, R_1063_HDMI_FC_AUDSCONF, 0xf0);
+ hdmi_writeb(priv, R_10b3_HDMI_FC_DATAUTO0, 0x1e);
+ hdmi_writeb(priv, R_5001_HDMI_A_HDCPCFG1, 0x00);
+ hdmi_writeb(priv, R_5001_HDMI_A_HDCPCFG1,
+ HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE |
+ HDMI_A_HDCPCFG1_SWRESET);
+ hdmi_writeb(priv, R_5000_HDMI_A_HDCPCFG0, 0x00);
+ hdmi_writeb(priv, R_5009_HDMI_A_VIDPOLCFG,
+ HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_HIGH);
+ hdmi_writeb(priv, R_4001_HDMI_MC_CLKDIS, clkdis);
+ hdmi_writeb(priv, R_4001_HDMI_MC_CLKDIS, 0x00);
+ hdmi_writeb(priv, R_4001_HDMI_MC_CLKDIS, clkdis);
+ hdmi_writeb(priv, R_0100_HDMI_IH_FC_STAT0, 0xff);
+ hdmi_writeb(priv, R_0101_HDMI_IH_FC_STAT1, 0xff);
+ hdmi_writeb(priv, R_0102_HDMI_IH_FC_STAT2, 0xff);
+ hdmi_writeb(priv, R_0103_HDMI_IH_AS_STAT0, 0xff);
+ hdmi_writeb(priv, R_0105_HDMI_IH_I2CM_STAT0, 0xff);
+ hdmi_writeb(priv, R_0106_HDMI_IH_CEC_STAT0, 0xff);
+ hdmi_writeb(priv, R_0107_HDMI_IH_VP_STAT0, 0xff);
+}
+
+static void hdmi_phy_init_a83t(struct de2_hdmi_priv *priv)
+{
+ hdmi_inner_init(priv);
+
+ hdmi_writeb(priv, 0x10000, 0x01);
+ hdmi_writeb(priv, 0x10001, 0x00);
+ hdmi_writeb(priv, 0x10002, HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2);
+ hdmi_writeb(priv, 0x10003, 0x00);
+ hdmi_writeb(priv, 0x10007, 0xa0);
+ hdmi_writeb(priv, R_4005_HDMI_MC_PHYRSTZ,
+ HDMI_MC_PHYRSTZ_DEASSERT);
+ udelay(1);
+ hdmi_writeb(priv, R_3000_HDMI_PHY_CONF0,
+ HDMI_PHY_CONF0_GEN2_ENHPDRXSENSE |
+ HDMI_PHY_CONF0_SELDATAENPOL);
+ hdmi_writeb(priv, R_3000_HDMI_PHY_CONF0,
+ HDMI_PHY_CONF0_GEN2_PDDQ |
+ HDMI_PHY_CONF0_GEN2_ENHPDRXSENSE |
+ HDMI_PHY_CONF0_SELDATAENPOL);
+ hdmi_writeb(priv, R_3000_HDMI_PHY_CONF0,
+ HDMI_PHY_CONF0_GEN2_PDDQ |
+ HDMI_PHY_CONF0_SELDATAENPOL);
+ hdmi_writeb(priv, R_3006_HDMI_PHY_MASK0, 0xf0);
+ hdmi_writeb(priv, R_3027_HDMI_PHY_I2CM_INT_ADDR, 0xff);
+ hdmi_writeb(priv, R_3028_HDMI_PHY_I2CM_CTLINT_ADDR, 0xff);
+ hdmi_writeb(priv, R_0104_HDMI_IH_PHY_STAT0, 0xff);
+ hdmi_writeb(priv, R_0108_HDMI_IH_I2CMPHY_STAT0, 0xff);
+ hdmi_writeb(priv, R_4005_HDMI_MC_PHYRSTZ, 0x00);
+ hdmi_writeb(priv, R_3000_HDMI_PHY_CONF0,
+ HDMI_PHY_CONF0_GEN2_PDDQ |
+ HDMI_PHY_CONF0_GEN2_ENHPDRXSENSE |
+ HDMI_PHY_CONF0_SELDATAENPOL);
+ hdmi_writeb(priv, R_3000_HDMI_PHY_CONF0,
+ HDMI_PHY_CONF0_GEN2_ENHPDRXSENSE |
+ HDMI_PHY_CONF0_SELDATAENPOL);
+ hdmi_writeb(priv, R_3001_HDMI_PHY_TST0, HDMI_PHY_TST0_TSTCLR);
+ hdmi_writeb(priv, R_3020_HDMI_PHY_I2CM_SLAVE_ADDR,
+ HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2);
+ hdmi_writeb(priv, R_3001_HDMI_PHY_TST0, 0x00);
+}
+
+static void hdmi_phy_init_h3(struct de2_hdmi_priv *priv)
+{
+ int to_cnt;
+ u32 tmp;
+
+ hdmi_writel(priv, 0x10020, 0);
+ hdmi_writel(priv, 0x10020, 1 << 0);
+ udelay(5);
+ hdmi_writel(priv, 0x10020, hdmi_readl(priv, 0x10020) | (1 << 16));
+ hdmi_writel(priv, 0x10020, hdmi_readl(priv, 0x10020) | (1 << 1));
+ udelay(10);
+ hdmi_writel(priv, 0x10020, hdmi_readl(priv, 0x10020) | (1 << 2));
+ udelay(5);
+ hdmi_writel(priv, 0x10020, hdmi_readl(priv, 0x10020) | (1 << 3));
+ usleep_range(40, 50);
+ hdmi_writel(priv, 0x10020, hdmi_readl(priv, 0x10020) | (1 << 19));
+ usleep_range(100, 120);
+ hdmi_writel(priv, 0x10020, hdmi_readl(priv, 0x10020) | (1 << 18));
+ hdmi_writel(priv, 0x10020, hdmi_readl(priv, 0x10020) | (7 << 4));
+
+ to_cnt = 10;
+ while (1) {
+ if (hdmi_readl(priv, 0x10038) & 0x80)
+ break;
+ usleep_range(200, 250);
+ if (--to_cnt == 0) {
+ pr_warn("hdmi phy init timeout\n");
+ break;
+ }
+ }
+
+ hdmi_writel(priv, 0x10020, hdmi_readl(priv, 0x10020) | (0xf << 8));
+ hdmi_writel(priv, 0x10020, hdmi_readl(priv, 0x10020) | (1 << 7));
+
+ hdmi_writel(priv, 0x1002c, 0x39dc5040);
+ hdmi_writel(priv, 0x10030, 0x80084343);
+ msleep(10);
+ hdmi_writel(priv, 0x10034, 0x00000001);
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) | 0x02000000);
+ msleep(100);
+ tmp = hdmi_readl(priv, 0x10038);
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) | 0xc0000000);
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) |
+ ((tmp >> 11) & 0x3f));
+ hdmi_writel(priv, 0x10020, 0x01ff0f7f);
+ hdmi_writel(priv, 0x10024, 0x80639000);
+ hdmi_writel(priv, 0x10028, 0x0f81c405);
+
+ hdmi_inner_init(priv);
+}
+
+void hdmi_io_init(struct de2_hdmi_priv *priv)
+{
+ if (priv->soc_type == SOC_H3)
+ hdmi_phy_init_h3(priv);
+ else
+ hdmi_phy_init_a83t(priv);
+}
+
+static int get_vid(u32 id)
+{
+ u32 i;
+
+ for (i = 0; i < ARRAY_SIZE(ptbl); i++) {
+ if (id == ptbl[i].para[0])
+ return i;
+ }
+
+ return -1;
+}
+
+static void hdmi_i2cm_write(struct de2_hdmi_priv *priv,
+ int addr, u8 valh, u8 vall)
+{
+ hdmi_writeb(priv, R_3021_HDMI_PHY_I2CM_ADDRESS_ADDR, addr);
+ hdmi_writeb(priv, R_3022_HDMI_PHY_I2CM_DATAO_1_ADDR, valh);
+ hdmi_writeb(priv, R_3023_HDMI_PHY_I2CM_DATAO_0_ADDR, vall);
+ hdmi_writeb(priv, R_3026_HDMI_PHY_I2CM_OPERATION_ADDR,
+ HDMI_PHY_I2CM_OPERATION_ADDR_WRITE);
+ usleep_range(2000, 2500);
+}
+
+static int hdmi_phy_set_a83t(struct de2_hdmi_priv *priv, int i)
+{
+ switch (ptbl[i].para[1]) {
+ case 1:
+ hdmi_i2cm_write(priv, 0x06, 0x00, 0x00);
+ hdmi_i2cm_write(priv, 0x15, 0x00, 0x0f);
+ hdmi_i2cm_write(priv, 0x10, 0x00, 0x00);
+ hdmi_i2cm_write(priv, 0x19, 0x00, 0x02);
+ hdmi_i2cm_write(priv, 0x0e, 0x00, 0x00);
+ hdmi_i2cm_write(priv, 0x09, 0x80, 0x2b);
+ break;
+ case 2: /* 1080P @ 60 & 50 */
+ hdmi_i2cm_write(priv, 0x06, 0x04, 0xa0);
+ hdmi_i2cm_write(priv, 0x15, 0x00, 0x0a);
+ hdmi_i2cm_write(priv, 0x10, 0x00, 0x00);
+ hdmi_i2cm_write(priv, 0x19, 0x00, 0x02);
+ hdmi_i2cm_write(priv, 0x0e, 0x00, 0x21);
+ hdmi_i2cm_write(priv, 0x09, 0x80, 0x29);
+ break;
+ case 4: /* 720P @ 50 & 60, 1080I, 1080P */
+ hdmi_i2cm_write(priv, 0x06, 0x05, 0x40);
+ hdmi_i2cm_write(priv, 0x15, 0x00, 0x05);
+ hdmi_i2cm_write(priv, 0x10, 0x00, 0x00);
+ hdmi_i2cm_write(priv, 0x19, 0x00, 0x07);
+ hdmi_i2cm_write(priv, 0x0e, 0x02, 0xb5);
+ hdmi_i2cm_write(priv, 0x09, 0x80, 0x09);
+ break;
+ case 11: /* 480P/576P */
+ hdmi_i2cm_write(priv, 0x06, 0x01,
+ ptbl[i].para[2] ? 0xe3 : 0xe0);
+ hdmi_i2cm_write(priv, 0x15, 0x00, 0x00);
+ hdmi_i2cm_write(priv, 0x10, 0x08, 0xda);
+ hdmi_i2cm_write(priv, 0x19, 0x00, 0x07);
+ hdmi_i2cm_write(priv, 0x0e, 0x03, 0x18);
+ hdmi_i2cm_write(priv, 0x09, 0x80, 0x09);
+ break;
+ default:
+ return -1;
+ }
+ hdmi_i2cm_write(priv, 0x1e, 0x00, 0x00);
+ hdmi_i2cm_write(priv, 0x13, 0x00, 0x00);
+ hdmi_i2cm_write(priv, 0x17, 0x00, 0x00);
+ hdmi_writeb(priv, R_3000_HDMI_PHY_CONF0,
+ HDMI_PHY_CONF0_GEN2_TXPWRON |
+ HDMI_PHY_CONF0_GEN2_ENHPDRXSENSE |
+ HDMI_PHY_CONF0_SELDATAENPOL);
+
+ return 0;
+}
+
+static int hdmi_phy_set_h3(struct de2_hdmi_priv *priv, int i)
+{
+ u32 tmp;
+
+ hdmi_writel(priv, 0x10020, hdmi_readl(priv, 0x10020) & ~0xf000);
+ switch (ptbl[i].para[1]) {
+ case 1:
+ hdmi_writel(priv, 0x1002c, 0x31dc5fc0); /* or 0x30dc5fc0 ? */
+ hdmi_writel(priv, 0x10030, 0x800863c0);
+ msleep(10);
+ hdmi_writel(priv, 0x10034, 0x00000001);
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) |
+ 0x02000000);
+ msleep(200);
+ tmp = (hdmi_readl(priv, 0x10038) >> 11) & 0x3f;
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) |
+ 0xc0000000);
+ if (tmp < 0x3d)
+ tmp += 2;
+ else
+ tmp = 0x3f;
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) | tmp);
+ msleep(100);
+ hdmi_writel(priv, 0x10020, 0x01ffff7f);
+ hdmi_writel(priv, 0x10024, 0x8063b000);
+ hdmi_writel(priv, 0x10028, 0x0f8246b5);
+ break;
+ case 2: /* 1080P @ 60 & 50 */
+ hdmi_writel(priv, 0x1002c, 0x39dc5040);
+ hdmi_writel(priv, 0x10030, 0x80084381);
+ msleep(10);
+ hdmi_writel(priv, 0x10034, 0x00000001);
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) |
+ 0x02000000);
+ msleep(100);
+ tmp = (hdmi_readl(priv, 0x10038) >> 11) & 0x3f;
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) |
+ 0xc0000000);
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) | tmp);
+ hdmi_writel(priv, 0x10020, 0x01ffff7f);
+ hdmi_writel(priv, 0x10024, 0x8063a800);
+ hdmi_writel(priv, 0x10028, 0x0f81c485);
+ break;
+ case 4: /* 720P @ 50 & 60, 1080I, 1080P */
+ hdmi_writel(priv, 0x1002c, 0x39dc5040);
+ hdmi_writel(priv, 0x10030, 0x80084343);
+ msleep(10);
+ hdmi_writel(priv, 0x10034, 0x00000001);
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) |
+ 0x02000000);
+ msleep(100);
+ tmp = (hdmi_readl(priv, 0x10038) >> 11) & 0x3f;
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) |
+ 0xc0000000);
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) | tmp);
+ hdmi_writel(priv, 0x10020, 0x01ffff7f);
+ hdmi_writel(priv, 0x10024, 0x8063b000);
+ hdmi_writel(priv, 0x10028, 0x0f81c405);
+ break;
+ case 11: /* 480P/576P */
+ hdmi_writel(priv, 0x1002c, 0x39dc5040);
+ hdmi_writel(priv, 0x10030, 0x8008430a);
+ msleep(10);
+ hdmi_writel(priv, 0x10034, 0x00000001);
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) |
+ 0x02000000);
+ msleep(100);
+ tmp = (hdmi_readl(priv, 0x10038) >> 11) & 0x3f;
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) |
+ 0xc0000000);
+ hdmi_writel(priv, 0x1002c, hdmi_readl(priv, 0x1002c) | tmp);
+ hdmi_writel(priv, 0x10020, 0x01ffff7f);
+ hdmi_writel(priv, 0x10024, 0x8063b000);
+ hdmi_writel(priv, 0x10028, 0x0f81c405);
+ break;
+ default:
+ return -1;
+ }
+
+ return 0;
+}
+
+void hdmi_io_video_on(struct de2_hdmi_priv *priv)
+{
+ if (priv->soc_type == SOC_H3)
+ hdmi_writel(priv, 0x10020,
+ hdmi_readl(priv, 0x10020) | (0x0f << 12));
+#if 0
+ else
+ hdmi_writeb(priv, R_1200_HDMI_FC_DBGFORCE, 0);
+#endif
+}
+
+void hdmi_io_video_off(struct de2_hdmi_priv *priv)
+{
+ if (priv->soc_type == SOC_H3)
+ hdmi_writel(priv, 0x10020,
+ hdmi_readl(priv, 0x10020) & ~(0x0f << 12));
+#if 0
+ else
+ hdmi_writeb(priv, R_1200_HDMI_FC_DBGFORCE,
+ HDMI_FC_DBGFORCE_FORCEVIDEO);
+#endif
+}
+
+#if IS_ENABLED(CONFIG_SND_SOC_SUNXI_HDMI)
+/* start audio */
+int hdmi_io_audio(struct de2_hdmi_priv *priv,
+ int sample_rate, int sample_bit)
+{
+ int id = get_vid(priv->cea_mode); /* ptbl index */
+ unsigned int i, n;
+
+ if (id < 0)
+ return id;
+
+ /* (2 channels) */
+ hdmi_writeb(priv, R_1063_HDMI_FC_AUDSCONF, 0xf0);
+
+ hdmi_writeb(priv, R_1065_HDMI_FC_AUDSV, ~0x11);
+
+ hdmi_writeb(priv, R_1066_HDMI_FC_AUDSU, 0x00);
+ hdmi_writeb(priv, R_1067_HDMI_FC_AUDSCHNLS0,
+ HDMI_FC_AUDSCHNLS0_CGMSA);
+ hdmi_writeb(priv, R_1068_HDMI_FC_AUDSCHNLS1, 0x00);
+ hdmi_writeb(priv, R_1069_HDMI_FC_AUDSCHNLS2, 0x01);
+ hdmi_writeb(priv, R_106a_HDMI_FC_AUDSCHNLS3,
+ HDMI_FC_AUDSCHNLS3_OIEC_CH0(2) |
+ HDMI_FC_AUDSCHNLS3_OIEC_CH1(4));
+ hdmi_writeb(priv, R_106b_HDMI_FC_AUDSCHNLS4,
+ HDMI_FC_AUDSCHNLS4_OIEC_CH2(6) |
+ HDMI_FC_AUDSCHNLS4_OIEC_CH3(8));
+ hdmi_writeb(priv, R_106c_HDMI_FC_AUDSCHNLS5,
+ HDMI_FC_AUDSCHNLS5_OIEC_CH0(1) |
+ HDMI_FC_AUDSCHNLS5_OIEC_CH1(3));
+ hdmi_writeb(priv, R_106d_HDMI_FC_AUDSCHNLS6,
+ HDMI_FC_AUDSCHNLS6_OIEC_CH2(5) |
+ HDMI_FC_AUDSCHNLS6_OIEC_CH3(7));
+ hdmi_writeb(priv, R_106e_HDMI_FC_AUDSCHNLS7, 0x01);
+ for (i = 0; i < ARRAY_SIZE(sf); i++) {
+ if (sample_rate == sf[i].sf) {
+ hdmi_writeb(priv, R_106e_HDMI_FC_AUDSCHNLS7,
+ sf[i].cs_sf);
+ break;
+ }
+ }
+ hdmi_writeb(priv, R_106f_HDMI_FC_AUDSCHNLS8,
+ (sample_bit == 16) ? HDMI_FC_AUDSCHNLS8_WORDLENGTH(2) :
+ (sample_bit == 24 ? HDMI_FC_AUDSCHNLS8_WORDLENGTH(11) :
+ HDMI_FC_AUDSCHNLS8_WORDLENGTH(0)));
+
+ hdmi_writeb(priv, R_3101_HDMI_AUD_CONF1, sample_bit);
+
+ n = 6272;
+ for (i = 0; i < ARRAY_SIZE(n_table); i++) {
+ if (sample_rate == n_table[i].rate) {
+ if (ptbl[id].para[1] == 1)
+ n = n_table[i].n1;
+ else
+ n = n_table[i].n2;
+ break;
+ }
+ }
+
+ hdmi_writeb(priv, R_3200_HDMI_AUD_N1, n);
+ hdmi_writeb(priv, R_3201_HDMI_AUD_N2, n >> 8);
+ hdmi_writeb(priv, R_3202_HDMI_AUD_N3, n >> 16);
+ hdmi_writeb(priv, R_3205_HDMI_AUD_CTS3, 0x00);
+ hdmi_writeb(priv, R_3206_HDMI_AUD_INPUTCLKFS, 0x04);
+ hdmi_writeb(priv, R_1063_HDMI_FC_AUDSCONF, 0x00); /* layout0 */
+ hdmi_writeb(priv, R_1025_HDMI_FC_AUDICONF0, 2 * 16); /* 2 channels */
+ hdmi_writeb(priv, R_1026_HDMI_FC_AUDICONF1, 0x00);
+ hdmi_writeb(priv, R_1027_HDMI_FC_AUDICONF2, 0x00);
+ hdmi_writeb(priv, R_1028_HDMI_FC_AUDICONF3, 0x00);
+
+ hdmi_writeb(priv, R_3103_HDMI_AUD_CONF2, 0x00); /* PCM only */
+
+ hdmi_writeb(priv, R_3100_HDMI_AUD_CONF0, 0x00);
+ hdmi_writeb(priv, R_4001_HDMI_MC_CLKDIS,
+ HDMI_MC_CLKDIS_AUDCLK_DISABLE);
+ hdmi_writeb(priv, R_4002_HDMI_MC_SWRSTZ, 0xf7);
+ usleep_range(100, 120);
+ hdmi_writeb(priv, R_3100_HDMI_AUD_CONF0, 0xaf);
+ usleep_range(100, 120);
+ hdmi_writeb(priv, R_4001_HDMI_MC_CLKDIS, 0x00); /* enable all clocks */
+
+ return 0;
+}
+#endif
+
+
+/* initialize */
+int hdmi_io_video_mode(struct de2_hdmi_priv *priv)
+{
+ int i = get_vid(priv->cea_mode); /* ptbl index */
+ u8 avi_d2; /* AVI InfoFrame Data Byte 2 */
+
+ if (i < 0)
+ return i;
+
+ /* colorimetry and aspect ratio */
+ switch (priv->cea_mode) {
+ case 2: /* 480P */
+ case 6: /* 1440x480I */
+ case 17: /* 576P */
+ case 21: /* 1440x576I */
+ avi_d2 = (HDMI_COLORIMETRY_ITU_601 << 6) |
+ (HDMI_PICTURE_ASPECT_4_3 << 4) | 0x08;
+ break;
+ default:
+ avi_d2 = (HDMI_COLORIMETRY_ITU_709 << 6) |
+ (HDMI_PICTURE_ASPECT_16_9 << 4) | 0x08;
+ break;
+ }
+ if (priv->soc_type == SOC_H3) {
+ if (hdmi_phy_set_h3(priv, i) != 0)
+ return -1;
+ hdmi_inner_init(priv);
+ } else {
+ hdmi_io_init(priv);
+ }
+
+ hdmi_writeb(priv, R_1200_HDMI_FC_DBGFORCE,
+ HDMI_FC_DBGFORCE_FORCEVIDEO);
+ hdmi_writeb(priv, R_1219_HDMI_FC_DBGTMDS0, 0x00);
+ hdmi_writeb(priv, R_1000_HDMI_FC_INVIDCONF, ptbl[i].para[3] |
+ HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH);
+ hdmi_writeb(priv, 0x10001, ptbl[i].para[3] < 0x60 ? 0x03 : 0x00);
+ hdmi_writeb(priv, R_1002_HDMI_FC_INHACTV1, ptbl[i].para[4]);
+ hdmi_writeb(priv, R_100d_HDMI_FC_VSYNCINWIDTH, ptbl[i].para[5]);
+ hdmi_writeb(priv, R_1006_HDMI_FC_INVACTV1, ptbl[i].para[6]);
+ hdmi_writeb(priv, R_1004_HDMI_FC_INHBLANK1, ptbl[i].para[7]);
+ hdmi_writeb(priv, R_100c_HDMI_FC_VSYNCINDELAY, ptbl[i].para[8]);
+ hdmi_writeb(priv, R_1009_HDMI_FC_HSYNCINDELAY1, ptbl[i].para[9]);
+ hdmi_writeb(priv, R_100b_HDMI_FC_HSYNCINWIDTH1, ptbl[i].para[10]);
+ hdmi_writeb(priv, R_1001_HDMI_FC_INHACTV0, ptbl[i].para[11]);
+ hdmi_writeb(priv, R_1003_HDMI_FC_INHBLANK0, ptbl[i].para[12]);
+ hdmi_writeb(priv, R_1008_HDMI_FC_HSYNCINDELAY0, ptbl[i].para[13]);
+ hdmi_writeb(priv, R_100a_HDMI_FC_HSYNCINWIDTH1, ptbl[i].para[14]);
+ hdmi_writeb(priv, R_1005_HDMI_FC_INVACTV0, ptbl[i].para[15]);
+ hdmi_writeb(priv, R_1007_HDMI_FC_INVBLANK, ptbl[i].para[16]);
+ hdmi_writeb(priv, R_1011_HDMI_FC_CTRLDUR, 12);
+ hdmi_writeb(priv, R_1012_HDMI_FC_EXCTRLDUR, 32);
+ hdmi_writeb(priv, R_1013_HDMI_FC_EXCTRLSPAC, 1);
+ hdmi_writeb(priv, R_1014_HDMI_FC_CH0PREAM, 0x0b);
+ hdmi_writeb(priv, R_1015_HDMI_FC_CH1PREAM, 0x16);
+ hdmi_writeb(priv, R_1016_HDMI_FC_CH2PREAM, 0x21);
+ hdmi_writeb(priv, R_10e0_HDMI_FC_PRCONF, ptbl[i].para[2] ? 0x21 : 0x10);
+ hdmi_writeb(priv, R_0801_HDMI_VP_PR_CD, ptbl[i].para[2] ? 0x41 : 0x40);
+ hdmi_writeb(priv, R_0802_HDMI_VP_STUFF, 0x07);
+ hdmi_writeb(priv, R_0803_HDMI_VP_REMAP, 0x00);
+ hdmi_writeb(priv, R_0804_HDMI_VP_CONF, 0x47);
+ hdmi_writeb(priv, R_0200_HDMI_TX_INVID0, 0x01);
+ hdmi_writeb(priv, R_0201_HDMI_TX_INSTUFFING, 0x07);
+ hdmi_writeb(priv, R_0202_HDMI_TX_GYDATA0, 0x00);
+ hdmi_writeb(priv, R_0203_HDMI_TX_GYDATA1, 0x00);
+ hdmi_writeb(priv, R_0204_HDMI_TX_RCRDATA0, 0x00);
+ hdmi_writeb(priv, R_0205_HDMI_TX_RCRDATA1, 0x00);
+ hdmi_writeb(priv, R_0206_HDMI_TX_BCBDATA0, 0x00);
+ hdmi_writeb(priv, R_0207_HDMI_TX_BCBDATA1, 0x00);
+
+ if (priv->codec.eld) { /* if audio/HDMI */
+ hdmi_writeb(priv, R_10b3_HDMI_FC_DATAUTO0, 0x08);
+ hdmi_writeb(priv, R_1031_HDMI_FC_VSDIEEEID2, 0x00);
+ hdmi_writeb(priv, R_1030_HDMI_FC_VSDIEEEID1,
+ HDMI_IEEE_OUI >> 8);
+ hdmi_writeb(priv, R_1029_HDMI_FC_VSDIEEEID0,
+ HDMI_IEEE_OUI & 0xff);
+ hdmi_writeb(priv, R_1032_HDMI_FC_VSDPAYLOAD0, 0x00);
+ hdmi_writeb(priv, R_1033_HDMI_FC_VSDPAYLOAD1, 0x00);
+ hdmi_writeb(priv, R_1034_HDMI_FC_VSDPAYLOAD2, 0x00);
+ hdmi_writeb(priv, R_10b4_HDMI_FC_DATAUTO1, 0x01);
+ hdmi_writeb(priv, R_10b5_HDMI_FC_DATAUTO2, 0x11);
+ hdmi_writeb(priv, R_1018_HDMI_FC_GCP, 0x00);
+ hdmi_writeb(priv, R_1104_HDMI_FC_GMD_HB, 0x00);
+ hdmi_writeb(priv, R_1103_HDMI_FC_GMD_CONF, 0x11);
+
+ hdmi_lock(priv);
+ hdmi_writeb(priv, R_1000_HDMI_FC_INVIDCONF,
+ hdmi_readb(priv, R_1000_HDMI_FC_INVIDCONF) | 0x08);
+ hdmi_unlock(priv);
+
+ /* AVI */
+ hdmi_writeb(priv, R_1019_HDMI_FC_AVICONF0,
+ HDMI_FC_AVICONF0_SCAN_INFO_UNDERSCAN);
+ hdmi_writeb(priv, R_101a_HDMI_FC_AVICONF1, avi_d2);
+ hdmi_writeb(priv, R_101b_HDMI_FC_AVICONF2, 0x08);
+ hdmi_writeb(priv, R_101c_HDMI_FC_AVIVID, priv->cea_mode);
+ }
+
+ hdmi_writeb(priv, R_4004_HDMI_MC_FLOWCTRL, 0x00);
+ hdmi_writeb(priv, R_4001_HDMI_MC_CLKDIS, 0x00); /* enable all clocks */
+
+ if (priv->soc_type != SOC_H3) {
+ if (hdmi_phy_set_a83t(priv, i) != 0)
+ return -1;
+ }
+
+ hdmi_writeb(priv, R_1200_HDMI_FC_DBGFORCE, 0x00);
+
+ return 0;
+}
+
+/* get a block of EDID */
+int hdmi_io_ddc_read(struct de2_hdmi_priv *priv,
+ char pointer, char off,
+ int nbyte, char *pbuf)
+{
+ unsigned to_cnt;
+ u8 reg;
+ int ret = 0;
+
+ hdmi_lock(priv);
+ hdmi_writeb(priv, R_7e09_HDMI_I2CM_SOFTRSTZ, 0x00);
+ to_cnt = 50;
+ while (!(hdmi_readb(priv, R_7e09_HDMI_I2CM_SOFTRSTZ) & 0x01)) {
+ udelay(10);
+ if (--to_cnt == 0) { /* wait for 500us for timeout */
+ pr_warn("hdmi ddc reset timeout\n");
+ break;
+ }
+ }
+
+ hdmi_writeb(priv, R_7e07_HDMI_I2CM_DIV, 0x05);
+ hdmi_writeb(priv, R_7e05_HDMI_I2CM_INT, 0x08);
+ hdmi_writeb(priv, R_7e0c_HDMI_I2CM_SS_SCL_HCNT_0_ADDR, 0xd8);
+ hdmi_writeb(priv, R_7e0e_HDMI_I2CM_SS_SCL_LCNT_0_ADDR, 0xfe);
+
+ while (nbyte > 0) {
+ hdmi_writeb(priv, R_7e00_HDMI_I2CM_SLAVE, 0xa0 >> 1);
+ hdmi_writeb(priv, R_7e01_HDMI_I2CM_ADDRESS, off);
+ hdmi_writeb(priv, R_7e08_HDMI_I2CM_SEGADDR, 0x60 >> 1);
+ hdmi_writeb(priv, R_7e0a_HDMI_I2CM_SEGPTR, pointer);
+ hdmi_writeb(priv, R_7e04_HDMI_I2CM_OPERATION,
+ HDMI_I2CM_OPERATION_DDC_READ);
+
+ to_cnt = 200; /* timeout 100ms */
+ while (1) {
+ reg = hdmi_readb(priv, R_0105_HDMI_IH_I2CM_STAT0);
+ hdmi_writeb(priv, R_0105_HDMI_IH_I2CM_STAT0, reg);
+ if (reg & 0x02) {
+ *pbuf++ = hdmi_readb(priv,
R_7e03_HDMI_I2CM_DATAI);
+ break;
+ }
+ if (reg & 0x01) {
+ pr_warn("hdmi ddc read error\n");
+ ret = -1;
+ break;
+ }
+ if (--to_cnt == 0) {
+ if (!ret) {
+ pr_warn("hdmi ddc read timeout\n");
+ ret = -1;
+ }
+ break;
+ }
+ usleep_range(800, 1000);
+ }
+ if (ret)
+ break;
+ nbyte--;
+ off++;
+ }
+ hdmi_unlock(priv);
+
+ return ret;
+}
+
+int hdmi_io_get_hpd(struct de2_hdmi_priv *priv)
+{
+ int ret;
+
+ hdmi_lock(priv);
+
+ if (priv->soc_type == SOC_H3)
+ ret = hdmi_readl(priv, 0x10038) & 0x80000;
+ else
+ ret = hdmi_readb(priv, R_3005_HDMI_PHY_INT0) & 0x02;
+
+ hdmi_unlock(priv);
+
+ return ret != 0;
+}
+
+void hdmi_io_reset(struct de2_hdmi_priv *priv)
+{
+ hdmi_writeb(priv, R_5001_HDMI_A_HDCPCFG1,
+ HDMI_A_HDCPCFG1_PH2UPSHFTENC);
+ hdmi_writeb(priv, R_4001_HDMI_MC_CLKDIS,
+ HDMI_MC_CLKDIS_HDCPCLK_DISABLE);
+}
+
+int hdmi_io_mode_valid(int cea_mode)
+{
+ return get_vid(cea_mode);
+}
diff --git a/drivers/gpu/drm/sunxi/de2_hdmi_io.h
b/drivers/gpu/drm/sunxi/de2_hdmi_io.h
new file mode 100644
index 0000000..2577f0b
--- /dev/null
+++ b/drivers/gpu/drm/sunxi/de2_hdmi_io.h
@@ -0,0 +1,25 @@
+#ifndef __DE2_HDMI_IO_H__
+#define __DE2_HDMI_IO_H__
+/*
+ * Copyright (C) 2016 Jean-François Moine
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+void hdmi_io_video_on(struct de2_hdmi_priv *priv);
+void hdmi_io_video_off(struct de2_hdmi_priv *priv);
+int hdmi_io_audio(struct de2_hdmi_priv *priv,
+ int sample_rate, int sample_bit);
+int hdmi_io_video_mode(struct de2_hdmi_priv *priv);
+int hdmi_io_ddc_read(struct de2_hdmi_priv *priv,
+ char pointer, char offset,
+ int nbyte, char *pbuf);
+int hdmi_io_get_hpd(struct de2_hdmi_priv *priv);
+void hdmi_io_init(struct de2_hdmi_priv *priv);
+void hdmi_io_reset(struct de2_hdmi_priv *priv);
+int hdmi_io_mode_valid(int cea_mode);
+
+#endif /* __DE2_HDMI_IO_H__ */
--
2.10.1
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