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Merge branches '3.19/omapdss' and '3.19/simplefb' into fbdev
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Merge fbdev topic branches.
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Tomi Valkeinen committed Dec 8, 2014
3 parents 3468562 + f3b7d0e + b14c992 commit 3315764
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Original file line number Diff line number Diff line change
@@ -0,0 +1,33 @@
Sunxi specific Simple Framebuffer bindings

This binding documents sunxi specific extensions to the simple-framebuffer
bindings. The sunxi simplefb u-boot code relies on the devicetree containing
pre-populated simplefb nodes.

These extensions are intended so that u-boot can select the right node based
on which pipeline is being used. As such they are solely intended for
firmware / bootloader use, and the OS should ignore them.

Required properties:
- compatible: "allwinner,simple-framebuffer"
- allwinner,pipeline, one of:
"de_be0-lcd0"
"de_be1-lcd1"
"de_be0-lcd0-hdmi"
"de_be1-lcd1-hdmi"

Example:

chosen {
#address-cells = <1>;
#size-cells = <1>;
ranges;

framebuffer@0 {
compatible = "allwinner,simple-framebuffer", "simple-framebuffer";
allwinner,pipeline = "de_be0-lcd0-hdmi";
clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 43>,
<&ahb_gates 44>;
status = "disabled";
};
};
68 changes: 64 additions & 4 deletions Documentation/devicetree/bindings/video/simple-framebuffer.txt
Original file line number Diff line number Diff line change
@@ -1,8 +1,40 @@
Simple Framebuffer

A simple frame-buffer describes a raw memory region that may be rendered to,
with the assumption that the display hardware has already been set up to scan
out from that buffer.
A simple frame-buffer describes a frame-buffer setup by firmware or
the bootloader, with the assumption that the display hardware has already
been set up to scan out from the memory pointed to by the reg property.

Since simplefb nodes represent runtime information they must be sub-nodes of
the chosen node (*). Simplefb nodes must be named "framebuffer@<address>".

If the devicetree contains nodes for the display hardware used by a simplefb,
then the simplefb node must contain a property called "display", which
contains a phandle pointing to the primary display hw node, so that the OS
knows which simplefb to disable when handing over control to a driver for the
real hardware. The bindings for the hw nodes must specify which node is
considered the primary node.

It is advised to add display# aliases to help the OS determine how to number
things. If display# aliases are used, then if the simplefb node contains a
"display" property then the /aliases/display# path must point to the display
hw node the "display" property points to, otherwise it must point directly
to the simplefb node.

If a simplefb node represents the preferred console for user interaction,
then the chosen node's stdout-path property should point to it, or to the
primary display hw node, as with display# aliases. If display aliases are
used then it should be set to the alias instead.

It is advised that devicetree files contain pre-filled, disabled framebuffer
nodes, so that the firmware only needs to update the mode information and
enable them. This way if e.g. later on support for more display clocks get
added, the simplefb nodes will already contain this info and the firmware
does not need to be updated.

If pre-filled framebuffer nodes are used, the firmware may need extra
information to find the right node. In that case an extra platform specific
compatible and platform specific properties should be used and documented,
see e.g. simple-framebuffer-sunxi.txt .

Required properties:
- compatible: "simple-framebuffer"
Expand All @@ -14,13 +46,41 @@ Required properties:
- r5g6b5 (16-bit pixels, d[15:11]=r, d[10:5]=g, d[4:0]=b).
- a8b8g8r8 (32-bit pixels, d[31:24]=a, d[23:16]=b, d[15:8]=g, d[7:0]=r).

Optional properties:
- clocks : List of clocks used by the framebuffer. Clocks listed here
are expected to already be configured correctly. The OS must
ensure these clocks are not modified or disabled while the
simple framebuffer remains active.
- display : phandle pointing to the primary display hardware node

Example:

framebuffer {
aliases {
display0 = &lcdc0;
}

chosen {
framebuffer0: framebuffer@1d385000 {
compatible = "simple-framebuffer";
reg = <0x1d385000 (1600 * 1200 * 2)>;
width = <1600>;
height = <1200>;
stride = <(1600 * 2)>;
format = "r5g6b5";
clocks = <&ahb_gates 36>, <&ahb_gates 43>, <&ahb_gates 44>;
display = <&lcdc0>;
};
stdout-path = "display0";
};

soc@01c00000 {
lcdc0: lcdc@1c0c000 {
compatible = "allwinner,sun4i-a10-lcdc";
...
};
};


*) Older devicetree files may have a compatible = "simple-framebuffer" node
in a different place, operating systems must first enumerate any compatible
nodes found under chosen and then check for other compatible nodes.
8 changes: 8 additions & 0 deletions MAINTAINERS
Original file line number Diff line number Diff line change
Expand Up @@ -8442,6 +8442,14 @@ F: drivers/media/usb/siano/
F: drivers/media/usb/siano/
F: drivers/media/mmc/siano/

SIMPLEFB FB DRIVER
M: Hans de Goede <hdegoede@redhat.com>
L: linux-fbdev@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/video/simple-framebuffer.txt
F: drivers/video/fbdev/simplefb.c
F: include/linux/platform_data/simplefb.h

SH_VEU V4L2 MEM2MEM DRIVER
L: linux-media@vger.kernel.org
S: Orphan
Expand Down
2 changes: 1 addition & 1 deletion drivers/video/console/fbcon.c
Original file line number Diff line number Diff line change
Expand Up @@ -3624,7 +3624,7 @@ static int __init fb_console_init(void)
return 0;
}

module_init(fb_console_init);
fs_initcall(fb_console_init);

#ifdef MODULE

Expand Down
99 changes: 0 additions & 99 deletions drivers/video/fbdev/omap2/displays-new/connector-hdmi.c
Original file line number Diff line number Diff line change
Expand Up @@ -170,98 +170,6 @@ static bool hdmic_detect(struct omap_dss_device *dssdev)
return in->ops.hdmi->detect(in);
}

static int hdmic_audio_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;

/* enable audio only if the display is active */
if (!omapdss_device_is_enabled(dssdev))
return -EPERM;

r = in->ops.hdmi->audio_enable(in);
if (r)
return r;

dssdev->audio_state = OMAP_DSS_AUDIO_ENABLED;

return 0;
}

static void hdmic_audio_disable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;

in->ops.hdmi->audio_disable(in);

dssdev->audio_state = OMAP_DSS_AUDIO_DISABLED;
}

static int hdmic_audio_start(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;

/*
* No need to check the panel state. It was checked when trasitioning
* to AUDIO_ENABLED.
*/
if (dssdev->audio_state != OMAP_DSS_AUDIO_ENABLED)
return -EPERM;

r = in->ops.hdmi->audio_start(in);
if (r)
return r;

dssdev->audio_state = OMAP_DSS_AUDIO_PLAYING;

return 0;
}

static void hdmic_audio_stop(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;

in->ops.hdmi->audio_stop(in);

dssdev->audio_state = OMAP_DSS_AUDIO_ENABLED;
}

static bool hdmic_audio_supported(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;

if (!omapdss_device_is_enabled(dssdev))
return false;

return in->ops.hdmi->audio_supported(in);
}

static int hdmic_audio_config(struct omap_dss_device *dssdev,
struct omap_dss_audio *audio)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;
int r;

/* config audio only if the display is active */
if (!omapdss_device_is_enabled(dssdev))
return -EPERM;

r = in->ops.hdmi->audio_config(in, audio);
if (r)
return r;

dssdev->audio_state = OMAP_DSS_AUDIO_CONFIGURED;

return 0;
}

static int hdmic_set_hdmi_mode(struct omap_dss_device *dssdev, bool hdmi_mode)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
Expand Down Expand Up @@ -296,13 +204,6 @@ static struct omap_dss_driver hdmic_driver = {
.detect = hdmic_detect,
.set_hdmi_mode = hdmic_set_hdmi_mode,
.set_hdmi_infoframe = hdmic_set_infoframe,

.audio_enable = hdmic_audio_enable,
.audio_disable = hdmic_audio_disable,
.audio_start = hdmic_audio_start,
.audio_stop = hdmic_audio_stop,
.audio_supported = hdmic_audio_supported,
.audio_config = hdmic_audio_config,
};

static int hdmic_probe_pdata(struct platform_device *pdev)
Expand Down
1 change: 1 addition & 0 deletions drivers/video/fbdev/omap2/displays-new/encoder-tfp410.c
Original file line number Diff line number Diff line change
Expand Up @@ -249,6 +249,7 @@ static int tfp410_probe(struct platform_device *pdev)
dssdev->output_type = OMAP_DISPLAY_TYPE_DVI;
dssdev->owner = THIS_MODULE;
dssdev->phy.dpi.data_lines = ddata->data_lines;
dssdev->port_num = 1;

r = omapdss_register_output(dssdev);
if (r) {
Expand Down
57 changes: 1 addition & 56 deletions drivers/video/fbdev/omap2/displays-new/encoder-tpd12s015.c
Original file line number Diff line number Diff line change
Expand Up @@ -193,55 +193,6 @@ static bool tpd_detect(struct omap_dss_device *dssdev)
return gpio_get_value_cansleep(ddata->hpd_gpio);
}

static int tpd_audio_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;

return in->ops.hdmi->audio_enable(in);
}

static void tpd_audio_disable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;

in->ops.hdmi->audio_disable(in);
}

static int tpd_audio_start(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;

return in->ops.hdmi->audio_start(in);
}

static void tpd_audio_stop(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;

in->ops.hdmi->audio_stop(in);
}

static bool tpd_audio_supported(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;

return in->ops.hdmi->audio_supported(in);
}

static int tpd_audio_config(struct omap_dss_device *dssdev,
struct omap_dss_audio *audio)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *in = ddata->in;

return in->ops.hdmi->audio_config(in, audio);
}

static int tpd_set_infoframe(struct omap_dss_device *dssdev,
const struct hdmi_avi_infoframe *avi)
{
Expand Down Expand Up @@ -275,13 +226,6 @@ static const struct omapdss_hdmi_ops tpd_hdmi_ops = {
.detect = tpd_detect,
.set_infoframe = tpd_set_infoframe,
.set_hdmi_mode = tpd_set_hdmi_mode,

.audio_enable = tpd_audio_enable,
.audio_disable = tpd_audio_disable,
.audio_start = tpd_audio_start,
.audio_stop = tpd_audio_stop,
.audio_supported = tpd_audio_supported,
.audio_config = tpd_audio_config,
};

static int tpd_probe_pdata(struct platform_device *pdev)
Expand Down Expand Up @@ -409,6 +353,7 @@ static int tpd_probe(struct platform_device *pdev)
dssdev->type = OMAP_DISPLAY_TYPE_HDMI;
dssdev->output_type = OMAP_DISPLAY_TYPE_HDMI;
dssdev->owner = THIS_MODULE;
dssdev->port_num = 1;

in = ddata->in;

Expand Down
7 changes: 0 additions & 7 deletions drivers/video/fbdev/omap2/dss/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -74,9 +74,6 @@ config OMAP4_DSS_HDMI
help
HDMI support for OMAP4 based SoCs.

config OMAP4_DSS_HDMI_AUDIO
bool

config OMAP5_DSS_HDMI
bool "HDMI support for OMAP5"
default n
Expand All @@ -86,10 +83,6 @@ config OMAP5_DSS_HDMI
Definition Multimedia Interface. See http://www.hdmi.org/ for HDMI
specification.

config OMAP5_DSS_HDMI_AUDIO
depends on OMAP5_DSS_HDMI
bool

config OMAP2_DSS_SDI
bool "SDI support"
default n
Expand Down
2 changes: 1 addition & 1 deletion drivers/video/fbdev/omap2/dss/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ obj-$(CONFIG_OMAP2_DSS_INIT) += omapdss-boot-init.o
obj-$(CONFIG_OMAP2_DSS) += omapdss.o
# Core DSS files
omapdss-y := core.o dss.o dss_features.o dispc.o dispc_coefs.o display.o \
output.o dss-of.o
output.o dss-of.o pll.o
# DSS compat layer files
omapdss-y += manager.o manager-sysfs.o overlay.o overlay-sysfs.o apply.o \
dispc-compat.o display-sysfs.o
Expand Down
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