diff options
Diffstat (limited to 'drivers/gpu/drm/omapdrm/displays')
9 files changed, 199 insertions, 5 deletions
diff --git a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c index e1fa143a5625..542a76503fbd 100644 --- a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c +++ b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c @@ -198,6 +198,9 @@ static int tvc_probe(struct platform_device *pdev) struct omap_dss_device *dssdev; int r; + if (!pdev->dev.of_node) + return -ENODEV; + ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL); if (!ddata) return -ENOMEM; diff --git a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c index 79cb69f1acf5..d9d25df6fc1b 100644 --- a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c +++ b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c @@ -15,6 +15,7 @@ #include <linux/platform_device.h> #include <linux/of.h> #include <linux/of_gpio.h> +#include <linux/mutex.h> #include <drm/drm_edid.h> @@ -37,6 +38,10 @@ static const struct videomode hdmic_default_vm = { struct panel_drv_data { struct omap_dss_device dssdev; struct omap_dss_device *in; + void (*hpd_cb)(void *cb_data, enum drm_connector_status status); + void *hpd_cb_data; + bool hpd_enabled; + struct mutex hpd_lock; struct device *dev; @@ -167,6 +172,70 @@ static bool hdmic_detect(struct omap_dss_device *dssdev) return in->ops.hdmi->detect(in); } +static int hdmic_register_hpd_cb(struct omap_dss_device *dssdev, + void (*cb)(void *cb_data, + enum drm_connector_status status), + void *cb_data) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + struct omap_dss_device *in = ddata->in; + + if (gpio_is_valid(ddata->hpd_gpio)) { + mutex_lock(&ddata->hpd_lock); + ddata->hpd_cb = cb; + ddata->hpd_cb_data = cb_data; + mutex_unlock(&ddata->hpd_lock); + return 0; + } else if (in->ops.hdmi->register_hpd_cb) { + return in->ops.hdmi->register_hpd_cb(in, cb, cb_data); + } + + return -ENOTSUPP; +} + +static void hdmic_unregister_hpd_cb(struct omap_dss_device *dssdev) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + struct omap_dss_device *in = ddata->in; + + if (gpio_is_valid(ddata->hpd_gpio)) { + mutex_lock(&ddata->hpd_lock); + ddata->hpd_cb = NULL; + ddata->hpd_cb_data = NULL; + mutex_unlock(&ddata->hpd_lock); + } else if (in->ops.hdmi->unregister_hpd_cb) { + in->ops.hdmi->unregister_hpd_cb(in); + } +} + +static void hdmic_enable_hpd(struct omap_dss_device *dssdev) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + struct omap_dss_device *in = ddata->in; + + if (gpio_is_valid(ddata->hpd_gpio)) { + mutex_lock(&ddata->hpd_lock); + ddata->hpd_enabled = true; + mutex_unlock(&ddata->hpd_lock); + } else if (in->ops.hdmi->enable_hpd) { + in->ops.hdmi->enable_hpd(in); + } +} + +static void hdmic_disable_hpd(struct omap_dss_device *dssdev) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + struct omap_dss_device *in = ddata->in; + + if (gpio_is_valid(ddata->hpd_gpio)) { + mutex_lock(&ddata->hpd_lock); + ddata->hpd_enabled = false; + mutex_unlock(&ddata->hpd_lock); + } else if (in->ops.hdmi->disable_hpd) { + in->ops.hdmi->disable_hpd(in); + } +} + static int hdmic_set_hdmi_mode(struct omap_dss_device *dssdev, bool hdmi_mode) { struct panel_drv_data *ddata = to_panel_data(dssdev); @@ -197,10 +266,34 @@ static struct omap_dss_driver hdmic_driver = { .read_edid = hdmic_read_edid, .detect = hdmic_detect, + .register_hpd_cb = hdmic_register_hpd_cb, + .unregister_hpd_cb = hdmic_unregister_hpd_cb, + .enable_hpd = hdmic_enable_hpd, + .disable_hpd = hdmic_disable_hpd, .set_hdmi_mode = hdmic_set_hdmi_mode, .set_hdmi_infoframe = hdmic_set_infoframe, }; +static irqreturn_t hdmic_hpd_isr(int irq, void *data) +{ + struct panel_drv_data *ddata = data; + + mutex_lock(&ddata->hpd_lock); + if (ddata->hpd_enabled && ddata->hpd_cb) { + enum drm_connector_status status; + + if (hdmic_detect(&ddata->dssdev)) + status = connector_status_connected; + else + status = connector_status_disconnected; + + ddata->hpd_cb(ddata->hpd_cb_data, status); + } + mutex_unlock(&ddata->hpd_lock); + + return IRQ_HANDLED; +} + static int hdmic_probe_of(struct platform_device *pdev) { struct panel_drv_data *ddata = platform_get_drvdata(pdev); @@ -246,11 +339,22 @@ static int hdmic_probe(struct platform_device *pdev) if (r) return r; + mutex_init(&ddata->hpd_lock); + if (gpio_is_valid(ddata->hpd_gpio)) { r = devm_gpio_request_one(&pdev->dev, ddata->hpd_gpio, GPIOF_DIR_IN, "hdmi_hpd"); if (r) goto err_reg; + + r = devm_request_threaded_irq(&pdev->dev, + gpio_to_irq(ddata->hpd_gpio), + NULL, hdmic_hpd_isr, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | + IRQF_ONESHOT, + "hdmic hpd", ddata); + if (r) + goto err_reg; } ddata->vm = hdmic_default_vm; diff --git a/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c b/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c index 58276a48112e..a9e9d667c55e 100644 --- a/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c +++ b/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c @@ -15,12 +15,17 @@ #include <linux/slab.h> #include <linux/platform_device.h> #include <linux/gpio/consumer.h> +#include <linux/mutex.h> #include "../dss/omapdss.h" struct panel_drv_data { struct omap_dss_device dssdev; struct omap_dss_device *in; + void (*hpd_cb)(void *cb_data, enum drm_connector_status status); + void *hpd_cb_data; + bool hpd_enabled; + struct mutex hpd_lock; struct gpio_desc *ct_cp_hpd_gpio; struct gpio_desc *ls_oe_gpio; @@ -162,6 +167,49 @@ static bool tpd_detect(struct omap_dss_device *dssdev) return gpiod_get_value_cansleep(ddata->hpd_gpio); } +static int tpd_register_hpd_cb(struct omap_dss_device *dssdev, + void (*cb)(void *cb_data, + enum drm_connector_status status), + void *cb_data) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + + mutex_lock(&ddata->hpd_lock); + ddata->hpd_cb = cb; + ddata->hpd_cb_data = cb_data; + mutex_unlock(&ddata->hpd_lock); + + return 0; +} + +static void tpd_unregister_hpd_cb(struct omap_dss_device *dssdev) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + + mutex_lock(&ddata->hpd_lock); + ddata->hpd_cb = NULL; + ddata->hpd_cb_data = NULL; + mutex_unlock(&ddata->hpd_lock); +} + +static void tpd_enable_hpd(struct omap_dss_device *dssdev) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + + mutex_lock(&ddata->hpd_lock); + ddata->hpd_enabled = true; + mutex_unlock(&ddata->hpd_lock); +} + +static void tpd_disable_hpd(struct omap_dss_device *dssdev) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + + mutex_lock(&ddata->hpd_lock); + ddata->hpd_enabled = false; + mutex_unlock(&ddata->hpd_lock); +} + static int tpd_set_infoframe(struct omap_dss_device *dssdev, const struct hdmi_avi_infoframe *avi) { @@ -193,10 +241,34 @@ static const struct omapdss_hdmi_ops tpd_hdmi_ops = { .read_edid = tpd_read_edid, .detect = tpd_detect, + .register_hpd_cb = tpd_register_hpd_cb, + .unregister_hpd_cb = tpd_unregister_hpd_cb, + .enable_hpd = tpd_enable_hpd, + .disable_hpd = tpd_disable_hpd, .set_infoframe = tpd_set_infoframe, .set_hdmi_mode = tpd_set_hdmi_mode, }; +static irqreturn_t tpd_hpd_isr(int irq, void *data) +{ + struct panel_drv_data *ddata = data; + + mutex_lock(&ddata->hpd_lock); + if (ddata->hpd_enabled && ddata->hpd_cb) { + enum drm_connector_status status; + + if (tpd_detect(&ddata->dssdev)) + status = connector_status_connected; + else + status = connector_status_disconnected; + + ddata->hpd_cb(ddata->hpd_cb_data, status); + } + mutex_unlock(&ddata->hpd_lock); + + return IRQ_HANDLED; +} + static int tpd_probe_of(struct platform_device *pdev) { struct panel_drv_data *ddata = platform_get_drvdata(pdev); @@ -261,6 +333,15 @@ static int tpd_probe(struct platform_device *pdev) ddata->hpd_gpio = gpio; + mutex_init(&ddata->hpd_lock); + + r = devm_request_threaded_irq(&pdev->dev, gpiod_to_irq(ddata->hpd_gpio), + NULL, tpd_hpd_isr, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + "tpd12s015 hpd", ddata); + if (r) + goto err_gpio; + dssdev = &ddata->dssdev; dssdev->ops.hdmi = &tpd_hdmi_ops; dssdev->dev = &pdev->dev; diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dpi.c b/drivers/gpu/drm/omapdrm/displays/panel-dpi.c index 6468a765f3d1..e065f7e10cca 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-dpi.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-dpi.c @@ -231,6 +231,9 @@ static int panel_dpi_probe(struct platform_device *pdev) struct omap_dss_device *dssdev; int r; + if (!pdev->dev.of_node) + return -ENODEV; + ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL); if (ddata == NULL) return -ENOMEM; diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c index 76787a75a4dc..92c556ac22c7 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c @@ -554,7 +554,7 @@ static struct attribute *dsicm_attrs[] = { NULL, }; -static struct attribute_group dsicm_attr_group = { +static const struct attribute_group dsicm_attr_group = { .attrs = dsicm_attrs, }; diff --git a/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c b/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c index c90474afaebd..74d13969b9ca 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c @@ -19,7 +19,7 @@ #include "../dss/omapdss.h" -static struct videomode lb035q02_vm = { +static const struct videomode lb035q02_vm = { .hactive = 320, .vactive = 240, diff --git a/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c b/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c index 346aefdb015f..8e5bff4e5226 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c @@ -503,7 +503,7 @@ static struct attribute *bldev_attrs[] = { NULL, }; -static struct attribute_group bldev_attr_group = { +static const struct attribute_group bldev_attr_group = { .attrs = bldev_attrs, }; @@ -720,6 +720,9 @@ static int acx565akm_probe(struct spi_device *spi) dev_dbg(&spi->dev, "%s\n", __func__); + if (!spi->dev.of_node) + return -ENODEV; + spi->mode = SPI_MODE_3; ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL); diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c index cbf4c67c4933..0a38a0e8c925 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c @@ -40,7 +40,7 @@ struct panel_drv_data { struct spi_device *spi_dev; }; -static struct videomode td028ttec1_panel_vm = { +static const struct videomode td028ttec1_panel_vm = { .hactive = 480, .vactive = 640, .pixelclock = 22153000, diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c index 20c6d8fe215a..ac4a6d4d134c 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c @@ -282,7 +282,7 @@ static struct attribute *tpo_td043_attrs[] = { NULL, }; -static struct attribute_group tpo_td043_attr_group = { +static const struct attribute_group tpo_td043_attr_group = { .attrs = tpo_td043_attrs, }; |