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path: root/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c
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Diffstat (limited to 'drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c')
-rw-r--r--drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c812
1 files changed, 812 insertions, 0 deletions
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c b/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c
new file mode 100644
index 000000000..0f39612e0
--- /dev/null
+++ b/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c
@@ -0,0 +1,812 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * HDMI interface DSS driver for TI's OMAP4 family of SoCs.
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com/
+ * Authors: Yong Zhi
+ * Mythri pk <mythripk@ti.com>
+ */
+
+#define DSS_SUBSYS_NAME "HDMI"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/regulator/consumer.h>
+#include <linux/component.h>
+#include <video/omapfb_dss.h>
+#include <sound/omap-hdmi-audio.h>
+
+#include "hdmi4_core.h"
+#include "dss.h"
+#include "dss_features.h"
+#include "hdmi.h"
+
+static struct omap_hdmi hdmi;
+
+static int hdmi_runtime_get(void)
+{
+ int r;
+
+ DSSDBG("hdmi_runtime_get\n");
+
+ r = pm_runtime_resume_and_get(&hdmi.pdev->dev);
+ if (WARN_ON(r < 0))
+ return r;
+
+ return 0;
+}
+
+static void hdmi_runtime_put(void)
+{
+ int r;
+
+ DSSDBG("hdmi_runtime_put\n");
+
+ r = pm_runtime_put_sync(&hdmi.pdev->dev);
+ WARN_ON(r < 0 && r != -ENOSYS);
+}
+
+static irqreturn_t hdmi_irq_handler(int irq, void *data)
+{
+ struct hdmi_wp_data *wp = data;
+ u32 irqstatus;
+
+ irqstatus = hdmi_wp_get_irqstatus(wp);
+ hdmi_wp_set_irqstatus(wp, irqstatus);
+
+ if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
+ irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
+ /*
+ * If we get both connect and disconnect interrupts at the same
+ * time, turn off the PHY, clear interrupts, and restart, which
+ * raises connect interrupt if a cable is connected, or nothing
+ * if cable is not connected.
+ */
+ hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
+
+ hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
+ HDMI_IRQ_LINK_DISCONNECT);
+
+ hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
+ } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
+ hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);
+ } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
+ hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int hdmi_init_regulator(void)
+{
+ struct regulator *reg;
+
+ if (hdmi.vdda_reg != NULL)
+ return 0;
+
+ reg = devm_regulator_get(&hdmi.pdev->dev, "vdda");
+
+ if (IS_ERR(reg)) {
+ if (PTR_ERR(reg) != -EPROBE_DEFER)
+ DSSERR("can't get VDDA regulator\n");
+ return PTR_ERR(reg);
+ }
+
+ hdmi.vdda_reg = reg;
+
+ return 0;
+}
+
+static int hdmi_power_on_core(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ r = regulator_enable(hdmi.vdda_reg);
+ if (r)
+ return r;
+
+ r = hdmi_runtime_get();
+ if (r)
+ goto err_runtime_get;
+
+ /* Make selection of HDMI in DSS */
+ dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK);
+
+ hdmi.core_enabled = true;
+
+ return 0;
+
+err_runtime_get:
+ regulator_disable(hdmi.vdda_reg);
+
+ return r;
+}
+
+static void hdmi_power_off_core(struct omap_dss_device *dssdev)
+{
+ hdmi.core_enabled = false;
+
+ hdmi_runtime_put();
+ regulator_disable(hdmi.vdda_reg);
+}
+
+static int hdmi_power_on_full(struct omap_dss_device *dssdev)
+{
+ int r;
+ struct omap_video_timings *p;
+ struct omap_overlay_manager *mgr = hdmi.output.manager;
+ struct hdmi_wp_data *wp = &hdmi.wp;
+ struct dss_pll_clock_info hdmi_cinfo = { 0 };
+
+ r = hdmi_power_on_core(dssdev);
+ if (r)
+ return r;
+
+ /* disable and clear irqs */
+ hdmi_wp_clear_irqenable(wp, 0xffffffff);
+ hdmi_wp_set_irqstatus(wp, 0xffffffff);
+
+ p = &hdmi.cfg.timings;
+
+ DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res);
+
+ hdmi_pll_compute(&hdmi.pll, p->pixelclock, &hdmi_cinfo);
+
+ r = dss_pll_enable(&hdmi.pll.pll);
+ if (r) {
+ DSSERR("Failed to enable PLL\n");
+ goto err_pll_enable;
+ }
+
+ r = dss_pll_set_config(&hdmi.pll.pll, &hdmi_cinfo);
+ if (r) {
+ DSSERR("Failed to configure PLL\n");
+ goto err_pll_cfg;
+ }
+
+ r = hdmi_phy_configure(&hdmi.phy, hdmi_cinfo.clkdco,
+ hdmi_cinfo.clkout[0]);
+ if (r) {
+ DSSDBG("Failed to configure PHY\n");
+ goto err_phy_cfg;
+ }
+
+ r = hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
+ if (r)
+ goto err_phy_pwr;
+
+ hdmi4_configure(&hdmi.core, &hdmi.wp, &hdmi.cfg);
+
+ /* bypass TV gamma table */
+ dispc_enable_gamma_table(0);
+
+ /* tv size */
+ dss_mgr_set_timings(mgr, p);
+
+ r = hdmi_wp_video_start(&hdmi.wp);
+ if (r)
+ goto err_vid_enable;
+
+ r = dss_mgr_enable(mgr);
+ if (r)
+ goto err_mgr_enable;
+
+ hdmi_wp_set_irqenable(wp,
+ HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
+
+ return 0;
+
+err_mgr_enable:
+ hdmi_wp_video_stop(&hdmi.wp);
+err_vid_enable:
+ hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF);
+err_phy_pwr:
+err_phy_cfg:
+err_pll_cfg:
+ dss_pll_disable(&hdmi.pll.pll);
+err_pll_enable:
+ hdmi_power_off_core(dssdev);
+ return -EIO;
+}
+
+static void hdmi_power_off_full(struct omap_dss_device *dssdev)
+{
+ struct omap_overlay_manager *mgr = hdmi.output.manager;
+
+ hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff);
+
+ dss_mgr_disable(mgr);
+
+ hdmi_wp_video_stop(&hdmi.wp);
+
+ hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF);
+
+ dss_pll_disable(&hdmi.pll.pll);
+
+ hdmi_power_off_core(dssdev);
+}
+
+static int hdmi_display_check_timing(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ struct omap_dss_device *out = &hdmi.output;
+
+ if (!dispc_mgr_timings_ok(out->dispc_channel, timings))
+ return -EINVAL;
+
+ return 0;
+}
+
+static void hdmi_display_set_timing(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ mutex_lock(&hdmi.lock);
+
+ hdmi.cfg.timings = *timings;
+
+ dispc_set_tv_pclk(timings->pixelclock);
+
+ mutex_unlock(&hdmi.lock);
+}
+
+static void hdmi_display_get_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ *timings = hdmi.cfg.timings;
+}
+
+static void hdmi_dump_regs(struct seq_file *s)
+{
+ mutex_lock(&hdmi.lock);
+
+ if (hdmi_runtime_get()) {
+ mutex_unlock(&hdmi.lock);
+ return;
+ }
+
+ hdmi_wp_dump(&hdmi.wp, s);
+ hdmi_pll_dump(&hdmi.pll, s);
+ hdmi_phy_dump(&hdmi.phy, s);
+ hdmi4_core_dump(&hdmi.core, s);
+
+ hdmi_runtime_put();
+ mutex_unlock(&hdmi.lock);
+}
+
+static int read_edid(u8 *buf, int len)
+{
+ int r;
+
+ mutex_lock(&hdmi.lock);
+
+ r = hdmi_runtime_get();
+ BUG_ON(r);
+
+ r = hdmi4_read_edid(&hdmi.core, buf, len);
+
+ hdmi_runtime_put();
+ mutex_unlock(&hdmi.lock);
+
+ return r;
+}
+
+static void hdmi_start_audio_stream(struct omap_hdmi *hd)
+{
+ hdmi_wp_audio_enable(&hd->wp, true);
+ hdmi4_audio_start(&hd->core, &hd->wp);
+}
+
+static void hdmi_stop_audio_stream(struct omap_hdmi *hd)
+{
+ hdmi4_audio_stop(&hd->core, &hd->wp);
+ hdmi_wp_audio_enable(&hd->wp, false);
+}
+
+static int hdmi_display_enable(struct omap_dss_device *dssdev)
+{
+ struct omap_dss_device *out = &hdmi.output;
+ unsigned long flags;
+ int r = 0;
+
+ DSSDBG("ENTER hdmi_display_enable\n");
+
+ mutex_lock(&hdmi.lock);
+
+ if (out->manager == NULL) {
+ DSSERR("failed to enable display: no output/manager\n");
+ r = -ENODEV;
+ goto err0;
+ }
+
+ r = hdmi_power_on_full(dssdev);
+ if (r) {
+ DSSERR("failed to power on device\n");
+ goto err0;
+ }
+
+ if (hdmi.audio_configured) {
+ r = hdmi4_audio_config(&hdmi.core, &hdmi.wp, &hdmi.audio_config,
+ hdmi.cfg.timings.pixelclock);
+ if (r) {
+ DSSERR("Error restoring audio configuration: %d", r);
+ hdmi.audio_abort_cb(&hdmi.pdev->dev);
+ hdmi.audio_configured = false;
+ }
+ }
+
+ spin_lock_irqsave(&hdmi.audio_playing_lock, flags);
+ if (hdmi.audio_configured && hdmi.audio_playing)
+ hdmi_start_audio_stream(&hdmi);
+ hdmi.display_enabled = true;
+ spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags);
+
+ mutex_unlock(&hdmi.lock);
+ return 0;
+
+err0:
+ mutex_unlock(&hdmi.lock);
+ return r;
+}
+
+static void hdmi_display_disable(struct omap_dss_device *dssdev)
+{
+ unsigned long flags;
+
+ DSSDBG("Enter hdmi_display_disable\n");
+
+ mutex_lock(&hdmi.lock);
+
+ spin_lock_irqsave(&hdmi.audio_playing_lock, flags);
+ hdmi_stop_audio_stream(&hdmi);
+ hdmi.display_enabled = false;
+ spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags);
+
+ hdmi_power_off_full(dssdev);
+
+ mutex_unlock(&hdmi.lock);
+}
+
+static int hdmi_core_enable(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ DSSDBG("ENTER omapdss_hdmi_core_enable\n");
+
+ mutex_lock(&hdmi.lock);
+
+ r = hdmi_power_on_core(dssdev);
+ if (r) {
+ DSSERR("failed to power on device\n");
+ goto err0;
+ }
+
+ mutex_unlock(&hdmi.lock);
+ return 0;
+
+err0:
+ mutex_unlock(&hdmi.lock);
+ return r;
+}
+
+static void hdmi_core_disable(struct omap_dss_device *dssdev)
+{
+ DSSDBG("Enter omapdss_hdmi_core_disable\n");
+
+ mutex_lock(&hdmi.lock);
+
+ hdmi_power_off_core(dssdev);
+
+ mutex_unlock(&hdmi.lock);
+}
+
+static int hdmi_connect(struct omap_dss_device *dssdev,
+ struct omap_dss_device *dst)
+{
+ struct omap_overlay_manager *mgr;
+ int r;
+
+ r = hdmi_init_regulator();
+ if (r)
+ return r;
+
+ mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel);
+ if (!mgr)
+ return -ENODEV;
+
+ r = dss_mgr_connect(mgr, dssdev);
+ if (r)
+ return r;
+
+ r = omapdss_output_set_device(dssdev, dst);
+ if (r) {
+ DSSERR("failed to connect output to new device: %s\n",
+ dst->name);
+ dss_mgr_disconnect(mgr, dssdev);
+ return r;
+ }
+
+ return 0;
+}
+
+static void hdmi_disconnect(struct omap_dss_device *dssdev,
+ struct omap_dss_device *dst)
+{
+ WARN_ON(dst != dssdev->dst);
+
+ if (dst != dssdev->dst)
+ return;
+
+ omapdss_output_unset_device(dssdev);
+
+ if (dssdev->manager)
+ dss_mgr_disconnect(dssdev->manager, dssdev);
+}
+
+static int hdmi_read_edid(struct omap_dss_device *dssdev,
+ u8 *edid, int len)
+{
+ bool need_enable = !hdmi.core_enabled;
+ int r;
+
+ if (need_enable) {
+ r = hdmi_core_enable(dssdev);
+ if (r)
+ return r;
+ }
+
+ r = read_edid(edid, len);
+
+ if (need_enable)
+ hdmi_core_disable(dssdev);
+
+ return r;
+}
+
+static int hdmi_set_infoframe(struct omap_dss_device *dssdev,
+ const struct hdmi_avi_infoframe *avi)
+{
+ hdmi.cfg.infoframe = *avi;
+ return 0;
+}
+
+static int hdmi_set_hdmi_mode(struct omap_dss_device *dssdev,
+ bool hdmi_mode)
+{
+ hdmi.cfg.hdmi_dvi_mode = hdmi_mode ? HDMI_HDMI : HDMI_DVI;
+ return 0;
+}
+
+static const struct omapdss_hdmi_ops hdmi_ops = {
+ .connect = hdmi_connect,
+ .disconnect = hdmi_disconnect,
+
+ .enable = hdmi_display_enable,
+ .disable = hdmi_display_disable,
+
+ .check_timings = hdmi_display_check_timing,
+ .set_timings = hdmi_display_set_timing,
+ .get_timings = hdmi_display_get_timings,
+
+ .read_edid = hdmi_read_edid,
+ .set_infoframe = hdmi_set_infoframe,
+ .set_hdmi_mode = hdmi_set_hdmi_mode,
+};
+
+static void hdmi_init_output(struct platform_device *pdev)
+{
+ struct omap_dss_device *out = &hdmi.output;
+
+ out->dev = &pdev->dev;
+ out->id = OMAP_DSS_OUTPUT_HDMI;
+ out->output_type = OMAP_DISPLAY_TYPE_HDMI;
+ out->name = "hdmi.0";
+ out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
+ out->ops.hdmi = &hdmi_ops;
+ out->owner = THIS_MODULE;
+
+ omapdss_register_output(out);
+}
+
+static void hdmi_uninit_output(struct platform_device *pdev)
+{
+ struct omap_dss_device *out = &hdmi.output;
+
+ omapdss_unregister_output(out);
+}
+
+static int hdmi_probe_of(struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ struct device_node *ep;
+ int r;
+
+ ep = omapdss_of_get_first_endpoint(node);
+ if (!ep)
+ return 0;
+
+ r = hdmi_parse_lanes_of(pdev, ep, &hdmi.phy);
+ if (r)
+ goto err;
+
+ of_node_put(ep);
+ return 0;
+
+err:
+ of_node_put(ep);
+ return r;
+}
+
+/* Audio callbacks */
+static int hdmi_audio_startup(struct device *dev,
+ void (*abort_cb)(struct device *dev))
+{
+ struct omap_hdmi *hd = dev_get_drvdata(dev);
+ int ret = 0;
+
+ mutex_lock(&hd->lock);
+
+ if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) {
+ ret = -EPERM;
+ goto out;
+ }
+
+ hd->audio_abort_cb = abort_cb;
+
+out:
+ mutex_unlock(&hd->lock);
+
+ return ret;
+}
+
+static int hdmi_audio_shutdown(struct device *dev)
+{
+ struct omap_hdmi *hd = dev_get_drvdata(dev);
+
+ mutex_lock(&hd->lock);
+ hd->audio_abort_cb = NULL;
+ hd->audio_configured = false;
+ hd->audio_playing = false;
+ mutex_unlock(&hd->lock);
+
+ return 0;
+}
+
+static int hdmi_audio_start(struct device *dev)
+{
+ struct omap_hdmi *hd = dev_get_drvdata(dev);
+ unsigned long flags;
+
+ WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
+
+ spin_lock_irqsave(&hd->audio_playing_lock, flags);
+
+ if (hd->display_enabled)
+ hdmi_start_audio_stream(hd);
+ hd->audio_playing = true;
+
+ spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
+ return 0;
+}
+
+static void hdmi_audio_stop(struct device *dev)
+{
+ struct omap_hdmi *hd = dev_get_drvdata(dev);
+ unsigned long flags;
+
+ WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
+
+ spin_lock_irqsave(&hd->audio_playing_lock, flags);
+
+ if (hd->display_enabled)
+ hdmi_stop_audio_stream(hd);
+ hd->audio_playing = false;
+
+ spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
+}
+
+static int hdmi_audio_config(struct device *dev,
+ struct omap_dss_audio *dss_audio)
+{
+ struct omap_hdmi *hd = dev_get_drvdata(dev);
+ int ret;
+
+ mutex_lock(&hd->lock);
+
+ if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) {
+ ret = -EPERM;
+ goto out;
+ }
+
+ ret = hdmi4_audio_config(&hd->core, &hd->wp, dss_audio,
+ hd->cfg.timings.pixelclock);
+ if (!ret) {
+ hd->audio_configured = true;
+ hd->audio_config = *dss_audio;
+ }
+out:
+ mutex_unlock(&hd->lock);
+
+ return ret;
+}
+
+static const struct omap_hdmi_audio_ops hdmi_audio_ops = {
+ .audio_startup = hdmi_audio_startup,
+ .audio_shutdown = hdmi_audio_shutdown,
+ .audio_start = hdmi_audio_start,
+ .audio_stop = hdmi_audio_stop,
+ .audio_config = hdmi_audio_config,
+};
+
+static int hdmi_audio_register(struct device *dev)
+{
+ struct omap_hdmi_audio_pdata pdata = {
+ .dev = dev,
+ .version = 4,
+ .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi.wp),
+ .ops = &hdmi_audio_ops,
+ };
+
+ hdmi.audio_pdev = platform_device_register_data(
+ dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
+ &pdata, sizeof(pdata));
+
+ return PTR_ERR_OR_ZERO(hdmi.audio_pdev);
+}
+
+/* HDMI HW IP initialisation */
+static int hdmi4_bind(struct device *dev, struct device *master, void *data)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ int r;
+ int irq;
+
+ hdmi.pdev = pdev;
+ platform_set_drvdata(pdev, &hdmi);
+
+ mutex_init(&hdmi.lock);
+ spin_lock_init(&hdmi.audio_playing_lock);
+
+ if (pdev->dev.of_node) {
+ r = hdmi_probe_of(pdev);
+ if (r)
+ return r;
+ }
+
+ r = hdmi_wp_init(pdev, &hdmi.wp);
+ if (r)
+ return r;
+
+ r = hdmi_pll_init(pdev, &hdmi.pll, &hdmi.wp);
+ if (r)
+ return r;
+
+ r = hdmi_phy_init(pdev, &hdmi.phy);
+ if (r)
+ goto err;
+
+ r = hdmi4_core_init(pdev, &hdmi.core);
+ if (r)
+ goto err;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ DSSERR("platform_get_irq failed\n");
+ r = -ENODEV;
+ goto err;
+ }
+
+ r = devm_request_threaded_irq(&pdev->dev, irq,
+ NULL, hdmi_irq_handler,
+ IRQF_ONESHOT, "OMAP HDMI", &hdmi.wp);
+ if (r) {
+ DSSERR("HDMI IRQ request failed\n");
+ goto err;
+ }
+
+ pm_runtime_enable(&pdev->dev);
+
+ hdmi_init_output(pdev);
+
+ r = hdmi_audio_register(&pdev->dev);
+ if (r) {
+ DSSERR("Registering HDMI audio failed\n");
+ hdmi_uninit_output(pdev);
+ pm_runtime_disable(&pdev->dev);
+ return r;
+ }
+
+ dss_debugfs_create_file("hdmi", hdmi_dump_regs);
+
+ return 0;
+err:
+ hdmi_pll_uninit(&hdmi.pll);
+ return r;
+}
+
+static void hdmi4_unbind(struct device *dev, struct device *master, void *data)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ if (hdmi.audio_pdev)
+ platform_device_unregister(hdmi.audio_pdev);
+
+ hdmi_uninit_output(pdev);
+
+ hdmi_pll_uninit(&hdmi.pll);
+
+ pm_runtime_disable(&pdev->dev);
+}
+
+static const struct component_ops hdmi4_component_ops = {
+ .bind = hdmi4_bind,
+ .unbind = hdmi4_unbind,
+};
+
+static int hdmi4_probe(struct platform_device *pdev)
+{
+ return component_add(&pdev->dev, &hdmi4_component_ops);
+}
+
+static int hdmi4_remove(struct platform_device *pdev)
+{
+ component_del(&pdev->dev, &hdmi4_component_ops);
+ return 0;
+}
+
+static int hdmi_runtime_suspend(struct device *dev)
+{
+ dispc_runtime_put();
+
+ return 0;
+}
+
+static int hdmi_runtime_resume(struct device *dev)
+{
+ int r;
+
+ r = dispc_runtime_get();
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+static const struct dev_pm_ops hdmi_pm_ops = {
+ .runtime_suspend = hdmi_runtime_suspend,
+ .runtime_resume = hdmi_runtime_resume,
+};
+
+static const struct of_device_id hdmi_of_match[] = {
+ { .compatible = "ti,omap4-hdmi", },
+ {},
+};
+
+static struct platform_driver omapdss_hdmihw_driver = {
+ .probe = hdmi4_probe,
+ .remove = hdmi4_remove,
+ .driver = {
+ .name = "omapdss_hdmi",
+ .pm = &hdmi_pm_ops,
+ .of_match_table = hdmi_of_match,
+ .suppress_bind_attrs = true,
+ },
+};
+
+int __init hdmi4_init_platform_driver(void)
+{
+ return platform_driver_register(&omapdss_hdmihw_driver);
+}
+
+void hdmi4_uninit_platform_driver(void)
+{
+ platform_driver_unregister(&omapdss_hdmihw_driver);
+}