Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / video / fbdev / omap2 / dss / hdmi5.c
diff --git a/kernel/drivers/video/fbdev/omap2/dss/hdmi5.c b/kernel/drivers/video/fbdev/omap2/dss/hdmi5.c
new file mode 100644 (file)
index 0000000..3f0b34a
--- /dev/null
@@ -0,0 +1,813 @@
+/*
+ * HDMI driver for OMAP5
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated
+ *
+ * Authors:
+ *     Yong Zhi
+ *     Mythri pk
+ *     Archit Taneja <archit@ti.com>
+ *     Tomi Valkeinen <tomi.valkeinen@ti.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/>.
+ */
+
+#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/gpio.h>
+#include <linux/regulator/consumer.h>
+#include <video/omapdss.h>
+#include <sound/omap-hdmi-audio.h>
+
+#include "hdmi5_core.h"
+#include "dss.h"
+#include "dss_features.h"
+
+static struct omap_hdmi hdmi;
+
+static int hdmi_runtime_get(void)
+{
+       int r;
+
+       DSSDBG("hdmi_runtime_get\n");
+
+       r = pm_runtime_get_sync(&hdmi.pdev->dev);
+       WARN_ON(r < 0);
+       if (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) {
+               u32 v;
+               /*
+                * 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);
+
+               /*
+                * We always get bogus CONNECT & DISCONNECT interrupts when
+                * setting the PHY to LDOON. To ignore those, we force the RXDET
+                * line to 0 until the PHY power state has been changed.
+                */
+               v = hdmi_read_reg(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL);
+               v = FLD_MOD(v, 1, 15, 15); /* FORCE_RXDET_HIGH */
+               v = FLD_MOD(v, 0, 14, 7); /* RXDET_LINE */
+               hdmi_write_reg(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL, v);
+
+               hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
+                               HDMI_IRQ_LINK_DISCONNECT);
+
+               hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
+
+               REG_FLD_MOD(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL, 0, 15, 15);
+
+       } 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)
+{
+       int r;
+       struct regulator *reg;
+
+       if (hdmi.vdda_reg != NULL)
+               return 0;
+
+       reg = devm_regulator_get(&hdmi.pdev->dev, "vdda");
+       if (IS_ERR(reg)) {
+               DSSERR("can't get VDDA regulator\n");
+               return PTR_ERR(reg);
+       }
+
+       if (regulator_can_change_voltage(reg)) {
+               r = regulator_set_voltage(reg, 1800000, 1800000);
+               if (r) {
+                       devm_regulator_put(reg);
+                       DSSWARN("can't set the regulator voltage\n");
+                       return r;
+               }
+       }
+
+       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 dss_pll_clock_info hdmi_cinfo = { 0 };
+
+       r = hdmi_power_on_core(dssdev);
+       if (r)
+               return r;
+
+       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);
+
+       /* disable and clear irqs */
+       hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff);
+       hdmi_wp_set_irqstatus(&hdmi.wp,
+                       hdmi_wp_get_irqstatus(&hdmi.wp));
+
+       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 start PHY\n");
+               goto err_phy_cfg;
+       }
+
+       r = hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_LDOON);
+       if (r)
+               goto err_phy_pwr;
+
+       hdmi5_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(&hdmi.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;
+
+       /* TODO: proper interlace support */
+       if (timings->interlace)
+               return -EINVAL;
+
+       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);
+       hdmi5_core_dump(&hdmi.core, s);
+
+       hdmi_runtime_put();
+       mutex_unlock(&hdmi.lock);
+}
+
+static int read_edid(u8 *buf, int len)
+{
+       int r;
+       int idlemode;
+
+       mutex_lock(&hdmi.lock);
+
+       r = hdmi_runtime_get();
+       BUG_ON(r);
+
+       idlemode = REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2);
+       /* No-idle mode */
+       REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
+
+       r = hdmi5_read_edid(&hdmi.core,  buf, len);
+
+       REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, idlemode, 3, 2);
+
+       hdmi_runtime_put();
+       mutex_unlock(&hdmi.lock);
+
+       return r;
+}
+
+static int hdmi_display_enable(struct omap_dss_device *dssdev)
+{
+       struct omap_dss_device *out = &hdmi.output;
+       int r = 0;
+
+       DSSDBG("ENTER hdmi_display_enable\n");
+
+       mutex_lock(&hdmi.lock);
+
+       if (out == NULL || 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;
+       }
+
+       hdmi.display_enabled = true;
+
+       mutex_unlock(&hdmi.lock);
+       return 0;
+
+err0:
+       mutex_unlock(&hdmi.lock);
+       return r;
+}
+
+static void hdmi_display_disable(struct omap_dss_device *dssdev)
+{
+       DSSDBG("Enter hdmi_display_disable\n");
+
+       mutex_lock(&hdmi.lock);
+
+       if (hdmi.audio_pdev && hdmi.audio_abort_cb)
+               hdmi.audio_abort_cb(&hdmi.audio_pdev->dev);
+
+       hdmi_power_off_full(dssdev);
+
+       hdmi.display_enabled = false;
+
+       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;
+       int r;
+
+       need_enable = hdmi.core_enabled == false;
+
+       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;
+       mutex_unlock(&hd->lock);
+
+       return 0;
+}
+
+static int hdmi_audio_start(struct device *dev)
+{
+       struct omap_hdmi *hd = dev_get_drvdata(dev);
+
+       WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
+       WARN_ON(!hd->display_enabled);
+
+       /* No-idle while playing audio, store the old value */
+       hd->wp_idlemode = REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2);
+       REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
+
+       hdmi_wp_audio_enable(&hd->wp, true);
+       hdmi_wp_audio_core_req_enable(&hd->wp, true);
+
+       return 0;
+}
+
+static void hdmi_audio_stop(struct device *dev)
+{
+       struct omap_hdmi *hd = dev_get_drvdata(dev);
+
+       WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
+       WARN_ON(!hd->display_enabled);
+
+       hdmi_wp_audio_core_req_enable(&hd->wp, false);
+       hdmi_wp_audio_enable(&hd->wp, false);
+
+       /* Playback stopped, restore original idlemode */
+       REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2);
+}
+
+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 = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio,
+                                hd->cfg.timings.pixelclock);
+
+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,
+               .dss_version = omapdss_get_version(),
+               .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));
+
+       if (IS_ERR(hdmi.audio_pdev))
+               return PTR_ERR(hdmi.audio_pdev);
+
+       return 0;
+}
+
+/* HDMI HW IP initialisation */
+static int omapdss_hdmihw_probe(struct platform_device *pdev)
+{
+       int r;
+       int irq;
+
+       hdmi.pdev = pdev;
+       dev_set_drvdata(&pdev->dev, &hdmi);
+
+       mutex_init(&hdmi.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 = hdmi5_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 %d\n", r);
+               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 int __exit omapdss_hdmihw_remove(struct platform_device *pdev)
+{
+       if (hdmi.audio_pdev)
+               platform_device_unregister(hdmi.audio_pdev);
+
+       hdmi_uninit_output(pdev);
+
+       hdmi_pll_uninit(&hdmi.pll);
+
+       pm_runtime_disable(&pdev->dev);
+
+       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,omap5-hdmi", },
+       { .compatible = "ti,dra7-hdmi", },
+       {},
+};
+
+static struct platform_driver omapdss_hdmihw_driver = {
+       .probe          = omapdss_hdmihw_probe,
+       .remove         = __exit_p(omapdss_hdmihw_remove),
+       .driver         = {
+               .name   = "omapdss_hdmi5",
+               .pm     = &hdmi_pm_ops,
+               .of_match_table = hdmi_of_match,
+               .suppress_bind_attrs = true,
+       },
+};
+
+int __init hdmi5_init_platform_driver(void)
+{
+       return platform_driver_register(&omapdss_hdmihw_driver);
+}
+
+void __exit hdmi5_uninit_platform_driver(void)
+{
+       platform_driver_unregister(&omapdss_hdmihw_driver);
+}