opa362 is amplifier for videoand can be connected to the tvout pads
of the OMAP3. It has one gpio control for enable/disable of the output
(high impedance).
Signed-off-by: H. Nikolaus Schaller h...@goldelico.com
---
drivers/video/fbdev/omap2/displays-new/Kconfig | 6 +
drivers/video/fbdev/omap2/displays-new/Makefile| 1 +
.../fbdev/omap2/displays-new/amplifier-opa362.c| 347 +
3 files changed, 354 insertions(+)
create mode 100644 drivers/video/fbdev/omap2/displays-new/amplifier-opa362.c
diff --git a/drivers/video/fbdev/omap2/displays-new/Kconfig
b/drivers/video/fbdev/omap2/displays-new/Kconfig
index e6cfc38..211b3ec 100644
--- a/drivers/video/fbdev/omap2/displays-new/Kconfig
+++ b/drivers/video/fbdev/omap2/displays-new/Kconfig
@@ -1,6 +1,12 @@
menu OMAP Display Device Drivers (new device model)
depends on OMAP2_DSS
+config DISPLAY_AMPLIFIER_OPA362
+tristate external analog amplifier with output disable/high-Z (e.g.
OPA362)
+ help
+ Driver to enable an external analog TV amplifier (e.g. OPA362)
+ through a GPIO.
+
config DISPLAY_ENCODER_TFP410
tristate TFP410 DPI to DVI Encoder
help
diff --git a/drivers/video/fbdev/omap2/displays-new/Makefile
b/drivers/video/fbdev/omap2/displays-new/Makefile
index 0323a8a..b311542 100644
--- a/drivers/video/fbdev/omap2/displays-new/Makefile
+++ b/drivers/video/fbdev/omap2/displays-new/Makefile
@@ -1,3 +1,4 @@
+obj-$(CONFIG_DISPLAY_AMPLIFIER_OPA362) += amplifier-opa362.o
obj-$(CONFIG_DISPLAY_ENCODER_TFP410) += encoder-tfp410.o
obj-$(CONFIG_DISPLAY_ENCODER_TPD12S015) += encoder-tpd12s015.o
obj-$(CONFIG_DISPLAY_CONNECTOR_DVI) += connector-dvi.o
diff --git a/drivers/video/fbdev/omap2/displays-new/amplifier-opa362.c
b/drivers/video/fbdev/omap2/displays-new/amplifier-opa362.c
new file mode 100644
index 000..37b2443
--- /dev/null
+++ b/drivers/video/fbdev/omap2/displays-new/amplifier-opa362.c
@@ -0,0 +1,347 @@
+/*
+ * OPA362 analog video amplifier with output/power control
+ *
+ * Copyright (C) 2014 Golden Delicious Computers
+ * Author: H. Nikolaus Schaller h...@goldelico.com
+ *
+ * based on encoder-tfp410
+ *
+ * Copyright (C) 2013 Texas Instruments
+ * Author: Tomi Valkeinen tomi.valkei...@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.
+ */
+
+#include linux/gpio.h
+#include linux/module.h
+#include linux/platform_device.h
+#include linux/slab.h
+#include linux/of_gpio.h
+
+#include video/omapdss.h
+#include video/omap-panel-data.h
+
+struct panel_drv_data {
+ struct omap_dss_device dssdev;
+ struct omap_dss_device *in;
+
+ int enable_gpio;
+ bool bypass;
+ bool acbias;
+
+ struct omap_video_timings timings;
+};
+
+#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
+
+static int opa362_connect(struct omap_dss_device *dssdev,
+ struct omap_dss_device *dst)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ struct omap_dss_device *in = ddata-in;
+ int r;
+
+ dev_dbg(dssdev-dev, connect\n);
+
+ if (omapdss_device_is_connected(dssdev))
+ return -EBUSY;
+
+ r = in-ops.atv-connect(in, dssdev);
+ if (r)
+ return r;
+
+ dst-src = dssdev;
+ dssdev-dst = dst;
+
+ return 0;
+}
+
+static void opa362_disconnect(struct omap_dss_device *dssdev,
+ struct omap_dss_device *dst)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ struct omap_dss_device *in = ddata-in;
+
+ dev_dbg(dssdev-dev, disconnect\n);
+
+ WARN_ON(!omapdss_device_is_connected(dssdev));
+ if (!omapdss_device_is_connected(dssdev))
+ return;
+
+ WARN_ON(dst != dssdev-dst);
+ if (dst != dssdev-dst)
+ return;
+
+ dst-src = NULL;
+ dssdev-dst = NULL;
+
+ in-ops.atv-disconnect(in, ddata-dssdev);
+}
+
+static int opa362_enable(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ struct omap_dss_device *in = ddata-in;
+ int r;
+
+ dev_dbg(dssdev-dev, enable\n);
+
+ if (!omapdss_device_is_connected(dssdev))
+ return -ENODEV;
+
+ if (omapdss_device_is_enabled(dssdev))
+ return 0;
+
+ in-ops.atv-set_timings(in, ddata-timings);
+ /* fixme: should we receive the invert from our consumer, i.e. the
connector? */
+ in-ops.atv-invert_vid_out_polarity(in, true);
+
+ r = in-ops.atv-enable(in);
+ if (r)
+ return r;
+
+ if (gpio_is_valid(ddata-enable_gpio))
+ gpio_set_value_cansleep(ddata-enable_gpio, 1);
+
+ dssdev-state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ return 0;
+}
+
+static void opa362_disable(struct omap_dss_device *dssdev)
+{
+
