Initial import

1 files changed, 166 insertions, 0 deletions

diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.h b/drivers/gpu/drm/msm/hdmi/hdmi.h
new file mode 100644
index 000000000..68fdfb362
--- /dev/null
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.h
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __HDMI_CONNECTOR_H__
+#define __HDMI_CONNECTOR_H__
+
+#include <linux/i2c.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/hdmi.h>
+
+#include "msm_drv.h"
+#include "hdmi.xml.h"
+
+
+struct hdmi_phy;
+struct hdmi_platform_config;
+
+struct hdmi_audio {
+	bool enabled;
+	struct hdmi_audio_infoframe infoframe;
+	int rate;
+};
+
+struct hdmi {
+	struct drm_device *dev;
+	struct platform_device *pdev;
+
+	const struct hdmi_platform_config *config;
+
+	/* audio state: */
+	struct hdmi_audio audio;
+
+	/* video state: */
+	bool power_on;
+	unsigned long int pixclock;
+
+	void __iomem *mmio;
+
+	struct regulator **hpd_regs;
+	struct regulator **pwr_regs;
+	struct clk **hpd_clks;
+	struct clk **pwr_clks;
+
+	struct hdmi_phy *phy;
+	struct i2c_adapter *i2c;
+	struct drm_connector *connector;
+	struct drm_bridge *bridge;
+
+	/* the encoder we are hooked to (outside of hdmi block) */
+	struct drm_encoder *encoder;
+
+	bool hdmi_mode;               /* are we in hdmi mode? */
+
+	int irq;
+};
+
+/* platform config data (ie. from DT, or pdata) */
+struct hdmi_platform_config {
+	struct hdmi_phy *(*phy_init)(struct hdmi *hdmi);
+	const char *mmio_name;
+
+	/* regulators that need to be on for hpd: */
+	const char **hpd_reg_names;
+	int hpd_reg_cnt;
+
+	/* regulators that need to be on for screen pwr: */
+	const char **pwr_reg_names;
+	int pwr_reg_cnt;
+
+	/* clks that need to be on for hpd: */
+	const char **hpd_clk_names;
+	const long unsigned *hpd_freq;
+	int hpd_clk_cnt;
+
+	/* clks that need to be on for screen pwr (ie pixel clk): */
+	const char **pwr_clk_names;
+	int pwr_clk_cnt;
+
+	/* gpio's: */
+	int ddc_clk_gpio, ddc_data_gpio, hpd_gpio, mux_en_gpio, mux_sel_gpio;
+	int mux_lpm_gpio;
+};
+
+void hdmi_set_mode(struct hdmi *hdmi, bool power_on);
+
+static inline void hdmi_write(struct hdmi *hdmi, u32 reg, u32 data)
+{
+	msm_writel(data, hdmi->mmio + reg);
+}
+
+static inline u32 hdmi_read(struct hdmi *hdmi, u32 reg)
+{
+	return msm_readl(hdmi->mmio + reg);
+}
+
+/*
+ * The phy appears to be different, for example between 8960 and 8x60,
+ * so split the phy related functions out and load the correct one at
+ * runtime:
+ */
+
+struct hdmi_phy_funcs {
+	void (*destroy)(struct hdmi_phy *phy);
+	void (*reset)(struct hdmi_phy *phy);
+	void (*powerup)(struct hdmi_phy *phy, unsigned long int pixclock);
+	void (*powerdown)(struct hdmi_phy *phy);
+};
+
+struct hdmi_phy {
+	const struct hdmi_phy_funcs *funcs;
+};
+
+struct hdmi_phy *hdmi_phy_8960_init(struct hdmi *hdmi);
+struct hdmi_phy *hdmi_phy_8x60_init(struct hdmi *hdmi);
+struct hdmi_phy *hdmi_phy_8x74_init(struct hdmi *hdmi);
+
+/*
+ * audio:
+ */
+
+int hdmi_audio_update(struct hdmi *hdmi);
+int hdmi_audio_info_setup(struct hdmi *hdmi, bool enabled,
+	uint32_t num_of_channels, uint32_t channel_allocation,
+	uint32_t level_shift, bool down_mix);
+void hdmi_audio_set_sample_rate(struct hdmi *hdmi, int rate);
+
+
+/*
+ * hdmi bridge:
+ */
+
+struct drm_bridge *hdmi_bridge_init(struct hdmi *hdmi);
+void hdmi_bridge_destroy(struct drm_bridge *bridge);
+
+/*
+ * hdmi connector:
+ */
+
+void hdmi_connector_irq(struct drm_connector *connector);
+struct drm_connector *hdmi_connector_init(struct hdmi *hdmi);
+
+/*
+ * i2c adapter for ddc:
+ */
+
+void hdmi_i2c_irq(struct i2c_adapter *i2c);
+void hdmi_i2c_destroy(struct i2c_adapter *i2c);
+struct i2c_adapter *hdmi_i2c_init(struct hdmi *hdmi);
+
+#endif /* __HDMI_CONNECTOR_H__ */