diff options
Diffstat (limited to 'drivers/gpu/drm/msm/hdmi/hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/msm/hdmi/hdmi.c | 174 |
1 files changed, 105 insertions, 69 deletions
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c index 9a0989c..51b9ea5 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi.c @@ -21,7 +21,7 @@ #include "hdmi.h" -void hdmi_set_mode(struct hdmi *hdmi, bool power_on) +void msm_hdmi_set_mode(struct hdmi *hdmi, bool power_on) { uint32_t ctrl = 0; unsigned long flags; @@ -46,29 +46,27 @@ void hdmi_set_mode(struct hdmi *hdmi, bool power_on) power_on ? "Enable" : "Disable", ctrl); } -static irqreturn_t hdmi_irq(int irq, void *dev_id) +static irqreturn_t msm_hdmi_irq(int irq, void *dev_id) { struct hdmi *hdmi = dev_id; /* Process HPD: */ - hdmi_connector_irq(hdmi->connector); + msm_hdmi_connector_irq(hdmi->connector); /* Process DDC: */ - hdmi_i2c_irq(hdmi->i2c); + msm_hdmi_i2c_irq(hdmi->i2c); /* Process HDCP: */ if (hdmi->hdcp_ctrl) - hdmi_hdcp_irq(hdmi->hdcp_ctrl); + msm_hdmi_hdcp_irq(hdmi->hdcp_ctrl); /* TODO audio.. */ return IRQ_HANDLED; } -static void hdmi_destroy(struct hdmi *hdmi) +static void msm_hdmi_destroy(struct hdmi *hdmi) { - struct hdmi_phy *phy = hdmi->phy; - /* * at this point, hpd has been disabled, * after flush workq, it's safe to deinit hdcp @@ -77,21 +75,53 @@ static void hdmi_destroy(struct hdmi *hdmi) flush_workqueue(hdmi->workq); destroy_workqueue(hdmi->workq); } - hdmi_hdcp_destroy(hdmi); - if (phy) - phy->funcs->destroy(phy); + msm_hdmi_hdcp_destroy(hdmi); + + if (hdmi->phy_dev) { + put_device(hdmi->phy_dev); + hdmi->phy = NULL; + hdmi->phy_dev = NULL; + } if (hdmi->i2c) - hdmi_i2c_destroy(hdmi->i2c); + msm_hdmi_i2c_destroy(hdmi->i2c); platform_set_drvdata(hdmi->pdev, NULL); } +static int msm_hdmi_get_phy(struct hdmi *hdmi) +{ + struct platform_device *pdev = hdmi->pdev; + struct platform_device *phy_pdev; + struct device_node *phy_node; + + phy_node = of_parse_phandle(pdev->dev.of_node, "phys", 0); + if (!phy_node) { + dev_err(&pdev->dev, "cannot find phy device\n"); + return -ENXIO; + } + + phy_pdev = of_find_device_by_node(phy_node); + if (phy_pdev) + hdmi->phy = platform_get_drvdata(phy_pdev); + + of_node_put(phy_node); + + if (!phy_pdev || !hdmi->phy) { + dev_err(&pdev->dev, "phy driver is not ready\n"); + return -EPROBE_DEFER; + } + + hdmi->phy_dev = get_device(&phy_pdev->dev); + + return 0; +} + /* construct hdmi at bind/probe time, grab all the resources. If * we are to EPROBE_DEFER we want to do it here, rather than later * at modeset_init() time */ -static struct hdmi *hdmi_init(struct platform_device *pdev) +static struct hdmi *msm_hdmi_init(struct platform_device *pdev) { struct hdmi_platform_config *config = pdev->dev.platform_data; struct hdmi *hdmi = NULL; @@ -108,18 +138,6 @@ static struct hdmi *hdmi_init(struct platform_device *pdev) hdmi->config = config; spin_lock_init(&hdmi->reg_lock); - /* not sure about which phy maps to which msm.. probably I miss some */ - if (config->phy_init) { - hdmi->phy = config->phy_init(hdmi); - - if (IS_ERR(hdmi->phy)) { - ret = PTR_ERR(hdmi->phy); - dev_err(&pdev->dev, "failed to load phy: %d\n", ret); - hdmi->phy = NULL; - goto fail; - } - } - hdmi->mmio = msm_ioremap(pdev, config->mmio_name, "HDMI"); if (IS_ERR(hdmi->mmio)) { ret = PTR_ERR(hdmi->mmio); @@ -222,7 +240,7 @@ static struct hdmi *hdmi_init(struct platform_device *pdev) hdmi->workq = alloc_ordered_workqueue("msm_hdmi", 0); - hdmi->i2c = hdmi_i2c_init(hdmi); + hdmi->i2c = msm_hdmi_i2c_init(hdmi); if (IS_ERR(hdmi->i2c)) { ret = PTR_ERR(hdmi->i2c); dev_err(&pdev->dev, "failed to get i2c: %d\n", ret); @@ -230,7 +248,13 @@ static struct hdmi *hdmi_init(struct platform_device *pdev) goto fail; } - hdmi->hdcp_ctrl = hdmi_hdcp_init(hdmi); + ret = msm_hdmi_get_phy(hdmi); + if (ret) { + dev_err(&pdev->dev, "failed to get phy\n"); + goto fail; + } + + hdmi->hdcp_ctrl = msm_hdmi_hdcp_init(hdmi); if (IS_ERR(hdmi->hdcp_ctrl)) { dev_warn(&pdev->dev, "failed to init hdcp: disabled\n"); hdmi->hdcp_ctrl = NULL; @@ -240,7 +264,7 @@ static struct hdmi *hdmi_init(struct platform_device *pdev) fail: if (hdmi) - hdmi_destroy(hdmi); + msm_hdmi_destroy(hdmi); return ERR_PTR(ret); } @@ -250,10 +274,10 @@ fail: * driver (not hdmi sub-device's probe/bind!) * * Any resource (regulator/clk/etc) which could be missing at boot - * should be handled in hdmi_init() so that failure happens from + * should be handled in msm_hdmi_init() so that failure happens from * hdmi sub-device's probe. */ -int hdmi_modeset_init(struct hdmi *hdmi, +int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev, struct drm_encoder *encoder) { struct msm_drm_private *priv = dev->dev_private; @@ -265,7 +289,7 @@ int hdmi_modeset_init(struct hdmi *hdmi, hdmi_audio_infoframe_init(&hdmi->audio.infoframe); - hdmi->bridge = hdmi_bridge_init(hdmi); + hdmi->bridge = msm_hdmi_bridge_init(hdmi); if (IS_ERR(hdmi->bridge)) { ret = PTR_ERR(hdmi->bridge); dev_err(dev->dev, "failed to create HDMI bridge: %d\n", ret); @@ -273,7 +297,7 @@ int hdmi_modeset_init(struct hdmi *hdmi, goto fail; } - hdmi->connector = hdmi_connector_init(hdmi); + hdmi->connector = msm_hdmi_connector_init(hdmi); if (IS_ERR(hdmi->connector)) { ret = PTR_ERR(hdmi->connector); dev_err(dev->dev, "failed to create HDMI connector: %d\n", ret); @@ -289,7 +313,7 @@ int hdmi_modeset_init(struct hdmi *hdmi, } ret = devm_request_irq(&pdev->dev, hdmi->irq, - hdmi_irq, IRQF_TRIGGER_HIGH | IRQF_ONESHOT, + msm_hdmi_irq, IRQF_TRIGGER_HIGH | IRQF_ONESHOT, "hdmi_isr", hdmi); if (ret < 0) { dev_err(dev->dev, "failed to request IRQ%u: %d\n", @@ -309,7 +333,7 @@ int hdmi_modeset_init(struct hdmi *hdmi, fail: /* bridge is normally destroyed by drm: */ if (hdmi->bridge) { - hdmi_bridge_destroy(hdmi->bridge); + msm_hdmi_bridge_destroy(hdmi->bridge); hdmi->bridge = NULL; } if (hdmi->connector) { @@ -331,15 +355,12 @@ fail: static const char *pwr_reg_names_none[] = {}; static const char *hpd_reg_names_none[] = {}; -static struct hdmi_platform_config hdmi_tx_8660_config = { - .phy_init = hdmi_phy_8x60_init, -}; +static struct hdmi_platform_config hdmi_tx_8660_config; static const char *hpd_reg_names_8960[] = {"core-vdda", "hdmi-mux"}; static const char *hpd_clk_names_8960[] = {"core_clk", "master_iface_clk", "slave_iface_clk"}; static struct hdmi_platform_config hdmi_tx_8960_config = { - .phy_init = hdmi_phy_8960_init, HDMI_CFG(hpd_reg, 8960), HDMI_CFG(hpd_clk, 8960), }; @@ -351,7 +372,6 @@ static const char *hpd_clk_names_8x74[] = {"iface_clk", "core_clk", "mdp_core_cl static unsigned long hpd_clk_freq_8x74[] = {0, 19200000, 0}; static struct hdmi_platform_config hdmi_tx_8974_config = { - .phy_init = hdmi_phy_8x74_init, HDMI_CFG(pwr_reg, 8x74), HDMI_CFG(hpd_reg, 8x74), HDMI_CFG(pwr_clk, 8x74), @@ -362,7 +382,6 @@ static struct hdmi_platform_config hdmi_tx_8974_config = { static const char *hpd_reg_names_8084[] = {"hpd-gdsc", "hpd-5v", "hpd-5v-en"}; static struct hdmi_platform_config hdmi_tx_8084_config = { - .phy_init = hdmi_phy_8x74_init, HDMI_CFG(pwr_reg, 8x74), HDMI_CFG(hpd_reg, 8084), HDMI_CFG(pwr_clk, 8x74), @@ -371,7 +390,6 @@ static struct hdmi_platform_config hdmi_tx_8084_config = { }; static struct hdmi_platform_config hdmi_tx_8994_config = { - .phy_init = NULL, /* nothing to do for this HDMI PHY 20nm */ HDMI_CFG(pwr_reg, 8x74), HDMI_CFG(hpd_reg, none), HDMI_CFG(pwr_clk, 8x74), @@ -380,7 +398,6 @@ static struct hdmi_platform_config hdmi_tx_8994_config = { }; static struct hdmi_platform_config hdmi_tx_8996_config = { - .phy_init = NULL, HDMI_CFG(pwr_reg, none), HDMI_CFG(hpd_reg, none), HDMI_CFG(pwr_clk, 8x74), @@ -388,7 +405,21 @@ static struct hdmi_platform_config hdmi_tx_8996_config = { .hpd_freq = hpd_clk_freq_8x74, }; -static int get_gpio(struct device *dev, struct device_node *of_node, const char *name) +static const struct { + const char *name; + const bool output; + const int value; + const char *label; +} msm_hdmi_gpio_pdata[] = { + { "qcom,hdmi-tx-ddc-clk", true, 1, "HDMI_DDC_CLK" }, + { "qcom,hdmi-tx-ddc-data", true, 1, "HDMI_DDC_DATA" }, + { "qcom,hdmi-tx-hpd", false, 1, "HDMI_HPD" }, + { "qcom,hdmi-tx-mux-en", true, 1, "HDMI_MUX_EN" }, + { "qcom,hdmi-tx-mux-sel", true, 0, "HDMI_MUX_SEL" }, + { "qcom,hdmi-tx-mux-lpm", true, 1, "HDMI_MUX_LPM" }, +}; + +static int msm_hdmi_get_gpio(struct device_node *of_node, const char *name) { int gpio = of_get_named_gpio(of_node, name, 0); if (gpio < 0) { @@ -403,13 +434,14 @@ static int get_gpio(struct device *dev, struct device_node *of_node, const char return gpio; } -static int hdmi_bind(struct device *dev, struct device *master, void *data) +static int msm_hdmi_bind(struct device *dev, struct device *master, void *data) { struct drm_device *drm = dev_get_drvdata(master); struct msm_drm_private *priv = drm->dev_private; static struct hdmi_platform_config *hdmi_cfg; struct hdmi *hdmi; struct device_node *of_node = dev->of_node; + int i; hdmi_cfg = (struct hdmi_platform_config *) of_device_get_match_data(dev); @@ -420,16 +452,18 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data) hdmi_cfg->mmio_name = "core_physical"; hdmi_cfg->qfprom_mmio_name = "qfprom_physical"; - hdmi_cfg->ddc_clk_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-ddc-clk"); - hdmi_cfg->ddc_data_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-ddc-data"); - hdmi_cfg->hpd_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-hpd"); - hdmi_cfg->mux_en_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-mux-en"); - hdmi_cfg->mux_sel_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-mux-sel"); - hdmi_cfg->mux_lpm_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-mux-lpm"); + + for (i = 0; i < HDMI_MAX_NUM_GPIO; i++) { + hdmi_cfg->gpios[i].num = msm_hdmi_get_gpio(of_node, + msm_hdmi_gpio_pdata[i].name); + hdmi_cfg->gpios[i].output = msm_hdmi_gpio_pdata[i].output; + hdmi_cfg->gpios[i].value = msm_hdmi_gpio_pdata[i].value; + hdmi_cfg->gpios[i].label = msm_hdmi_gpio_pdata[i].label; + } dev->platform_data = hdmi_cfg; - hdmi = hdmi_init(to_platform_device(dev)); + hdmi = msm_hdmi_init(to_platform_device(dev)); if (IS_ERR(hdmi)) return PTR_ERR(hdmi); priv->hdmi = hdmi; @@ -437,34 +471,34 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data) return 0; } -static void hdmi_unbind(struct device *dev, struct device *master, +static void msm_hdmi_unbind(struct device *dev, struct device *master, void *data) { struct drm_device *drm = dev_get_drvdata(master); struct msm_drm_private *priv = drm->dev_private; if (priv->hdmi) { - hdmi_destroy(priv->hdmi); + msm_hdmi_destroy(priv->hdmi); priv->hdmi = NULL; } } -static const struct component_ops hdmi_ops = { - .bind = hdmi_bind, - .unbind = hdmi_unbind, +static const struct component_ops msm_hdmi_ops = { + .bind = msm_hdmi_bind, + .unbind = msm_hdmi_unbind, }; -static int hdmi_dev_probe(struct platform_device *pdev) +static int msm_hdmi_dev_probe(struct platform_device *pdev) { - return component_add(&pdev->dev, &hdmi_ops); + return component_add(&pdev->dev, &msm_hdmi_ops); } -static int hdmi_dev_remove(struct platform_device *pdev) +static int msm_hdmi_dev_remove(struct platform_device *pdev) { - component_del(&pdev->dev, &hdmi_ops); + component_del(&pdev->dev, &msm_hdmi_ops); return 0; } -static const struct of_device_id dt_match[] = { +static const struct of_device_id msm_hdmi_dt_match[] = { { .compatible = "qcom,hdmi-tx-8996", .data = &hdmi_tx_8996_config }, { .compatible = "qcom,hdmi-tx-8994", .data = &hdmi_tx_8994_config }, { .compatible = "qcom,hdmi-tx-8084", .data = &hdmi_tx_8084_config }, @@ -474,21 +508,23 @@ static const struct of_device_id dt_match[] = { {} }; -static struct platform_driver hdmi_driver = { - .probe = hdmi_dev_probe, - .remove = hdmi_dev_remove, +static struct platform_driver msm_hdmi_driver = { + .probe = msm_hdmi_dev_probe, + .remove = msm_hdmi_dev_remove, .driver = { .name = "hdmi_msm", - .of_match_table = dt_match, + .of_match_table = msm_hdmi_dt_match, }, }; -void __init hdmi_register(void) +void __init msm_hdmi_register(void) { - platform_driver_register(&hdmi_driver); + msm_hdmi_phy_driver_register(); + platform_driver_register(&msm_hdmi_driver); } -void __exit hdmi_unregister(void) +void __exit msm_hdmi_unregister(void) { - platform_driver_unregister(&hdmi_driver); + platform_driver_unregister(&msm_hdmi_driver); + msm_hdmi_phy_driver_unregister(); } |
