diff options
Diffstat (limited to 'drivers/gpu/drm/omapdrm/dss/hdmi4.c')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/hdmi4.c | 854 |
1 files changed, 854 insertions, 0 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c new file mode 100644 index 000000000..a8a75dc24 --- /dev/null +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c @@ -0,0 +1,854 @@ +// 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/regulator/consumer.h> +#include <linux/component.h> +#include <linux/of.h> +#include <linux/of_graph.h> +#include <sound/omap-hdmi-audio.h> +#include <media/cec.h> + +#include <drm/drm_atomic.h> +#include <drm/drm_atomic_state_helper.h> +#include <drm/drm_edid.h> + +#include "omapdss.h" +#include "hdmi4_core.h" +#include "hdmi4_cec.h" +#include "dss.h" +#include "hdmi.h" + +static int hdmi_runtime_get(struct omap_hdmi *hdmi) +{ + int r; + + DSSDBG("hdmi_runtime_get\n"); + + r = pm_runtime_get_sync(&hdmi->pdev->dev); + if (WARN_ON(r < 0)) { + pm_runtime_put_noidle(&hdmi->pdev->dev); + return r; + } + return 0; +} + +static void hdmi_runtime_put(struct omap_hdmi *hdmi) +{ + 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 omap_hdmi *hdmi = data; + struct hdmi_wp_data *wp = &hdmi->wp; + 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); + } + if (irqstatus & HDMI_IRQ_CORE) { + u32 intr4 = hdmi_read_reg(hdmi->core.base, HDMI_CORE_SYS_INTR4); + + hdmi_write_reg(hdmi->core.base, HDMI_CORE_SYS_INTR4, intr4); + if (intr4 & 8) + hdmi4_cec_irq(&hdmi->core); + } + + return IRQ_HANDLED; +} + +static int hdmi_power_on_core(struct omap_hdmi *hdmi) +{ + int r; + + if (hdmi->core.core_pwr_cnt++) + return 0; + + r = regulator_enable(hdmi->vdda_reg); + if (r) + goto err_reg_enable; + + r = hdmi_runtime_get(hdmi); + if (r) + goto err_runtime_get; + + hdmi4_core_powerdown_disable(&hdmi->core); + + /* Make selection of HDMI in DSS */ + dss_select_hdmi_venc_clk_source(hdmi->dss, DSS_HDMI_M_PCLK); + + hdmi->core_enabled = true; + + return 0; + +err_runtime_get: + regulator_disable(hdmi->vdda_reg); +err_reg_enable: + hdmi->core.core_pwr_cnt--; + + return r; +} + +static void hdmi_power_off_core(struct omap_hdmi *hdmi) +{ + if (--hdmi->core.core_pwr_cnt) + return; + + hdmi->core_enabled = false; + + hdmi_runtime_put(hdmi); + regulator_disable(hdmi->vdda_reg); +} + +static int hdmi_power_on_full(struct omap_hdmi *hdmi) +{ + int r; + const struct videomode *vm; + struct hdmi_wp_data *wp = &hdmi->wp; + struct dss_pll_clock_info hdmi_cinfo = { 0 }; + unsigned int pc; + + r = hdmi_power_on_core(hdmi); + if (r) + return r; + + /* disable and clear irqs */ + hdmi_wp_clear_irqenable(wp, ~HDMI_IRQ_CORE); + hdmi_wp_set_irqstatus(wp, ~HDMI_IRQ_CORE); + + vm = &hdmi->cfg.vm; + + DSSDBG("hdmi_power_on hactive= %d vactive = %d\n", vm->hactive, + vm->vactive); + + pc = vm->pixelclock; + if (vm->flags & DISPLAY_FLAGS_DOUBLECLK) + pc *= 2; + + /* DSS_HDMI_TCLK is bitclk / 10 */ + pc *= 10; + + dss_pll_calc_b(&hdmi->pll.pll, clk_get_rate(hdmi->pll.pll.clkin), + pc, &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); + + r = dss_mgr_enable(&hdmi->output); + if (r) + goto err_mgr_enable; + + r = hdmi_wp_video_start(&hdmi->wp); + if (r) + goto err_vid_enable; + + hdmi_wp_set_irqenable(wp, + HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT); + + return 0; + +err_vid_enable: + dss_mgr_disable(&hdmi->output); +err_mgr_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(hdmi); + return -EIO; +} + +static void hdmi_power_off_full(struct omap_hdmi *hdmi) +{ + hdmi_wp_clear_irqenable(&hdmi->wp, ~HDMI_IRQ_CORE); + + hdmi_wp_video_stop(&hdmi->wp); + + dss_mgr_disable(&hdmi->output); + + hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF); + + dss_pll_disable(&hdmi->pll.pll); + + hdmi_power_off_core(hdmi); +} + +static int hdmi_dump_regs(struct seq_file *s, void *p) +{ + struct omap_hdmi *hdmi = s->private; + + mutex_lock(&hdmi->lock); + + if (hdmi_runtime_get(hdmi)) { + mutex_unlock(&hdmi->lock); + return 0; + } + + 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(hdmi); + mutex_unlock(&hdmi->lock); + return 0; +} + +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); +} + +int hdmi4_core_enable(struct hdmi_core_data *core) +{ + struct omap_hdmi *hdmi = container_of(core, struct omap_hdmi, core); + int r = 0; + + DSSDBG("ENTER omapdss_hdmi4_core_enable\n"); + + mutex_lock(&hdmi->lock); + + r = hdmi_power_on_core(hdmi); + if (r) { + DSSERR("failed to power on device\n"); + goto err0; + } + + mutex_unlock(&hdmi->lock); + return 0; + +err0: + mutex_unlock(&hdmi->lock); + return r; +} + +void hdmi4_core_disable(struct hdmi_core_data *core) +{ + struct omap_hdmi *hdmi = container_of(core, struct omap_hdmi, core); + + DSSDBG("Enter omapdss_hdmi4_core_disable\n"); + + mutex_lock(&hdmi->lock); + + hdmi_power_off_core(hdmi); + + mutex_unlock(&hdmi->lock); +} + +/* ----------------------------------------------------------------------------- + * DRM Bridge Operations + */ + +static int hdmi4_bridge_attach(struct drm_bridge *bridge, + enum drm_bridge_attach_flags flags) +{ + struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge); + + if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) + return -EINVAL; + + return drm_bridge_attach(bridge->encoder, hdmi->output.next_bridge, + bridge, flags); +} + +static void hdmi4_bridge_mode_set(struct drm_bridge *bridge, + const struct drm_display_mode *mode, + const struct drm_display_mode *adjusted_mode) +{ + struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge); + + mutex_lock(&hdmi->lock); + + drm_display_mode_to_videomode(adjusted_mode, &hdmi->cfg.vm); + + dispc_set_tv_pclk(hdmi->dss->dispc, adjusted_mode->clock * 1000); + + mutex_unlock(&hdmi->lock); +} + +static void hdmi4_bridge_enable(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state) +{ + struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge); + struct drm_atomic_state *state = bridge_state->base.state; + struct drm_connector_state *conn_state; + struct drm_connector *connector; + struct drm_crtc_state *crtc_state; + unsigned long flags; + int ret; + + /* + * None of these should fail, as the bridge can't be enabled without a + * valid CRTC to connector path with fully populated new states. + */ + connector = drm_atomic_get_new_connector_for_encoder(state, + bridge->encoder); + if (WARN_ON(!connector)) + return; + conn_state = drm_atomic_get_new_connector_state(state, connector); + if (WARN_ON(!conn_state)) + return; + crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc); + if (WARN_ON(!crtc_state)) + return; + + hdmi->cfg.hdmi_dvi_mode = connector->display_info.is_hdmi + ? HDMI_HDMI : HDMI_DVI; + + if (connector->display_info.is_hdmi) { + const struct drm_display_mode *mode; + struct hdmi_avi_infoframe avi; + + mode = &crtc_state->adjusted_mode; + ret = drm_hdmi_avi_infoframe_from_display_mode(&avi, connector, + mode); + if (ret == 0) + hdmi->cfg.infoframe = avi; + } + + mutex_lock(&hdmi->lock); + + ret = hdmi_power_on_full(hdmi); + if (ret) { + DSSERR("failed to power on device\n"); + goto done; + } + + if (hdmi->audio_configured) { + ret = hdmi4_audio_config(&hdmi->core, &hdmi->wp, + &hdmi->audio_config, + hdmi->cfg.vm.pixelclock); + if (ret) { + DSSERR("Error restoring audio configuration: %d", ret); + 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); + +done: + mutex_unlock(&hdmi->lock); +} + +static void hdmi4_bridge_disable(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state) +{ + struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge); + unsigned long flags; + + 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(hdmi); + + mutex_unlock(&hdmi->lock); +} + +static void hdmi4_bridge_hpd_notify(struct drm_bridge *bridge, + enum drm_connector_status status) +{ + struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge); + + if (status == connector_status_disconnected) + hdmi4_cec_set_phys_addr(&hdmi->core, CEC_PHYS_ADDR_INVALID); +} + +static struct edid *hdmi4_bridge_get_edid(struct drm_bridge *bridge, + struct drm_connector *connector) +{ + struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge); + struct edid *edid = NULL; + unsigned int cec_addr; + bool need_enable; + int r; + + need_enable = hdmi->core_enabled == false; + + if (need_enable) { + r = hdmi4_core_enable(&hdmi->core); + if (r) + return NULL; + } + + mutex_lock(&hdmi->lock); + r = hdmi_runtime_get(hdmi); + BUG_ON(r); + + r = hdmi4_core_ddc_init(&hdmi->core); + if (r) + goto done; + + edid = drm_do_get_edid(connector, hdmi4_core_ddc_read, &hdmi->core); + +done: + hdmi_runtime_put(hdmi); + mutex_unlock(&hdmi->lock); + + if (edid && edid->extensions) { + unsigned int len = (edid->extensions + 1) * EDID_LENGTH; + + cec_addr = cec_get_edid_phys_addr((u8 *)edid, len, NULL); + } else { + cec_addr = CEC_PHYS_ADDR_INVALID; + } + + hdmi4_cec_set_phys_addr(&hdmi->core, cec_addr); + + if (need_enable) + hdmi4_core_disable(&hdmi->core); + + return edid; +} + +static const struct drm_bridge_funcs hdmi4_bridge_funcs = { + .attach = hdmi4_bridge_attach, + .mode_set = hdmi4_bridge_mode_set, + .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, + .atomic_reset = drm_atomic_helper_bridge_reset, + .atomic_enable = hdmi4_bridge_enable, + .atomic_disable = hdmi4_bridge_disable, + .hpd_notify = hdmi4_bridge_hpd_notify, + .get_edid = hdmi4_bridge_get_edid, +}; + +static void hdmi4_bridge_init(struct omap_hdmi *hdmi) +{ + hdmi->bridge.funcs = &hdmi4_bridge_funcs; + hdmi->bridge.of_node = hdmi->pdev->dev.of_node; + hdmi->bridge.ops = DRM_BRIDGE_OP_EDID; + hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA; + + drm_bridge_add(&hdmi->bridge); +} + +static void hdmi4_bridge_cleanup(struct omap_hdmi *hdmi) +{ + drm_bridge_remove(&hdmi->bridge); +} + +/* ----------------------------------------------------------------------------- + * Audio Callbacks + */ + +static int hdmi_audio_startup(struct device *dev, + void (*abort_cb)(struct device *dev)) +{ + struct omap_hdmi *hd = dev_get_drvdata(dev); + + mutex_lock(&hd->lock); + + WARN_ON(hd->audio_abort_cb != NULL); + + hd->audio_abort_cb = abort_cb; + + mutex_unlock(&hd->lock); + + return 0; +} + +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; + + spin_lock_irqsave(&hd->audio_playing_lock, flags); + + if (hd->display_enabled) { + if (!hdmi_mode_has_audio(&hd->cfg)) + DSSERR("%s: Video mode does not support audio\n", + __func__); + 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 = 0; + + mutex_lock(&hd->lock); + + if (hd->display_enabled) { + ret = hdmi4_audio_config(&hd->core, &hd->wp, dss_audio, + hd->cfg.vm.pixelclock); + if (ret) + goto out; + } + + 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 omap_hdmi *hdmi) +{ + struct omap_hdmi_audio_pdata pdata = { + .dev = &hdmi->pdev->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( + &hdmi->pdev->dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO, + &pdata, sizeof(pdata)); + + if (IS_ERR(hdmi->audio_pdev)) + return PTR_ERR(hdmi->audio_pdev); + + return 0; +} + +/* ----------------------------------------------------------------------------- + * Component Bind & Unbind + */ + +static int hdmi4_bind(struct device *dev, struct device *master, void *data) +{ + struct dss_device *dss = dss_get_device(master); + struct omap_hdmi *hdmi = dev_get_drvdata(dev); + int r; + + hdmi->dss = dss; + + r = hdmi_runtime_get(hdmi); + if (r) + return r; + + r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp); + if (r) + goto err_runtime_put; + + r = hdmi4_cec_init(hdmi->pdev, &hdmi->core, &hdmi->wp); + if (r) + goto err_pll_uninit; + + r = hdmi_audio_register(hdmi); + if (r) { + DSSERR("Registering HDMI audio failed\n"); + goto err_cec_uninit; + } + + hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs, + hdmi); + + hdmi_runtime_put(hdmi); + + return 0; + +err_cec_uninit: + hdmi4_cec_uninit(&hdmi->core); +err_pll_uninit: + hdmi_pll_uninit(&hdmi->pll); +err_runtime_put: + hdmi_runtime_put(hdmi); + return r; +} + +static void hdmi4_unbind(struct device *dev, struct device *master, void *data) +{ + struct omap_hdmi *hdmi = dev_get_drvdata(dev); + + dss_debugfs_remove_file(hdmi->debugfs); + + if (hdmi->audio_pdev) + platform_device_unregister(hdmi->audio_pdev); + + hdmi4_cec_uninit(&hdmi->core); + hdmi_pll_uninit(&hdmi->pll); +} + +static const struct component_ops hdmi4_component_ops = { + .bind = hdmi4_bind, + .unbind = hdmi4_unbind, +}; + +/* ----------------------------------------------------------------------------- + * Probe & Remove, Suspend & Resume + */ + +static int hdmi4_init_output(struct omap_hdmi *hdmi) +{ + struct omap_dss_device *out = &hdmi->output; + int r; + + hdmi4_bridge_init(hdmi); + + out->dev = &hdmi->pdev->dev; + out->id = OMAP_DSS_OUTPUT_HDMI; + out->type = OMAP_DISPLAY_TYPE_HDMI; + out->name = "hdmi.0"; + out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT; + out->of_port = 0; + + r = omapdss_device_init_output(out, &hdmi->bridge); + if (r < 0) { + hdmi4_bridge_cleanup(hdmi); + return r; + } + + omapdss_device_register(out); + + return 0; +} + +static void hdmi4_uninit_output(struct omap_hdmi *hdmi) +{ + struct omap_dss_device *out = &hdmi->output; + + omapdss_device_unregister(out); + omapdss_device_cleanup_output(out); + + hdmi4_bridge_cleanup(hdmi); +} + +static int hdmi4_probe_of(struct omap_hdmi *hdmi) +{ + struct platform_device *pdev = hdmi->pdev; + struct device_node *node = pdev->dev.of_node; + struct device_node *ep; + int r; + + ep = of_graph_get_endpoint_by_regs(node, 0, 0); + if (!ep) + return 0; + + r = hdmi_parse_lanes_of(pdev, ep, &hdmi->phy); + of_node_put(ep); + return r; +} + +static int hdmi4_probe(struct platform_device *pdev) +{ + struct omap_hdmi *hdmi; + int irq; + int r; + + hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL); + if (!hdmi) + return -ENOMEM; + + hdmi->pdev = pdev; + + dev_set_drvdata(&pdev->dev, hdmi); + + mutex_init(&hdmi->lock); + spin_lock_init(&hdmi->audio_playing_lock); + + r = hdmi4_probe_of(hdmi); + if (r) + goto err_free; + + r = hdmi_wp_init(pdev, &hdmi->wp, 4); + if (r) + goto err_free; + + r = hdmi_phy_init(pdev, &hdmi->phy, 4); + if (r) + goto err_free; + + r = hdmi4_core_init(pdev, &hdmi->core); + if (r) + goto err_free; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + DSSERR("platform_get_irq failed\n"); + r = -ENODEV; + goto err_free; + } + + r = devm_request_threaded_irq(&pdev->dev, irq, + NULL, hdmi_irq_handler, + IRQF_ONESHOT, "OMAP HDMI", hdmi); + if (r) { + DSSERR("HDMI IRQ request failed\n"); + goto err_free; + } + + hdmi->vdda_reg = devm_regulator_get(&pdev->dev, "vdda"); + if (IS_ERR(hdmi->vdda_reg)) { + r = PTR_ERR(hdmi->vdda_reg); + if (r != -EPROBE_DEFER) + DSSERR("can't get VDDA regulator\n"); + goto err_free; + } + + pm_runtime_enable(&pdev->dev); + + r = hdmi4_init_output(hdmi); + if (r) + goto err_pm_disable; + + r = component_add(&pdev->dev, &hdmi4_component_ops); + if (r) + goto err_uninit_output; + + return 0; + +err_uninit_output: + hdmi4_uninit_output(hdmi); +err_pm_disable: + pm_runtime_disable(&pdev->dev); +err_free: + kfree(hdmi); + return r; +} + +static int hdmi4_remove(struct platform_device *pdev) +{ + struct omap_hdmi *hdmi = platform_get_drvdata(pdev); + + component_del(&pdev->dev, &hdmi4_component_ops); + + hdmi4_uninit_output(hdmi); + + pm_runtime_disable(&pdev->dev); + + kfree(hdmi); + return 0; +} + +static const struct of_device_id hdmi_of_match[] = { + { .compatible = "ti,omap4-hdmi", }, + {}, +}; + +struct platform_driver omapdss_hdmi4hw_driver = { + .probe = hdmi4_probe, + .remove = hdmi4_remove, + .driver = { + .name = "omapdss_hdmi", + .of_match_table = hdmi_of_match, + .suppress_bind_attrs = true, + }, +}; |