[PATCH v7 05/11] drm: add Atmel HLCDC Display Controller support

[Nicolas Ferre]

On 01/10/2014 16:53, Boris Brezillon :
> From: Boris BREZILLON 
> 
> The Atmel HLCDC (HLCD Controller) IP available on some Atmel SoCs (i.e.
> at91sam9n12, at91sam9x5 family or sama5d3 family) provides a display
> controller device.
> 
> This display controller supports at least one primary plane and might
> provide several overlays and an hardware cursor depending on the IP
> version.
> 
> At the moment, this driver only implements an RGB connector to interface
> with LCD panels, but support for other kind of external devices might be
> added later.
> 
> Signed-off-by: Boris Brezillon 
> Reviewed-by: Rob Clark 
> Tested-by: Anthony Harivel 
> Tested-by: Ludovic Desroches 
> ---
>  drivers/gpu/drm/Kconfig  |   2 +
>  drivers/gpu/drm/Makefile |   1 +
>  drivers/gpu/drm/atmel-hlcdc/Kconfig  |  13 +
>  drivers/gpu/drm/atmel-hlcdc/Makefile |   7 +
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c   | 390 +++
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 531 +++
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | 216 ++
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c  | 638 +
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.h  | 394 +++
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c | 443 
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c  | 831 
> +++
>  11 files changed, 3466 insertions(+)
>  create mode 100644 drivers/gpu/drm/atmel-hlcdc/Kconfig
>  create mode 100644 drivers/gpu/drm/atmel-hlcdc/Makefile
>  create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
>  create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
>  create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
>  create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c
>  create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.h
>  create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c
>  create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> 
> diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
> index b066bb3..2d97f7e 100644
> --- a/drivers/gpu/drm/Kconfig
> +++ b/drivers/gpu/drm/Kconfig
> @@ -185,6 +185,8 @@ source "drivers/gpu/drm/cirrus/Kconfig"
>  
>  source "drivers/gpu/drm/armada/Kconfig"
>  
> +source "drivers/gpu/drm/atmel-hlcdc/Kconfig"
> +
>  source "drivers/gpu/drm/rcar-du/Kconfig"
>  
>  source "drivers/gpu/drm/shmobile/Kconfig"
> diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
> index 4a55d59..abb4f29 100644
> --- a/drivers/gpu/drm/Makefile
> +++ b/drivers/gpu/drm/Makefile
> @@ -56,6 +56,7 @@ obj-$(CONFIG_DRM_GMA500) += gma500/
>  obj-$(CONFIG_DRM_UDL) += udl/
>  obj-$(CONFIG_DRM_AST) += ast/
>  obj-$(CONFIG_DRM_ARMADA) += armada/
> +obj-$(CONFIG_DRM_ATMEL_HLCDC)+= atmel-hlcdc/
>  obj-$(CONFIG_DRM_RCAR_DU) += rcar-du/
>  obj-$(CONFIG_DRM_SHMOBILE) +=shmobile/
>  obj-$(CONFIG_DRM_OMAP)   += omapdrm/
> diff --git a/drivers/gpu/drm/atmel-hlcdc/Kconfig 
> b/drivers/gpu/drm/atmel-hlcdc/Kconfig
> new file mode 100644
> index 000..942407f
> --- /dev/null
> +++ b/drivers/gpu/drm/atmel-hlcdc/Kconfig
> @@ -0,0 +1,13 @@
> +config DRM_ATMEL_HLCDC
> + tristate "DRM Support for ATMEL HLCDC Display Controller"
> + depends on DRM && OF && COMMON_CLK
> + select DRM_GEM_CMA_HELPER
> + select DRM_KMS_HELPER
> + select DRM_KMS_FB_HELPER
> + select DRM_KMS_CMA_HELPER
> + select DRM_PANEL
> + select MFD_ATMEL_HLCDC
> + depends on OF
> + help
> +   Choose this option if you have an ATMEL SoC with an HLCDC display
> +   controller (i.e. at91sam9n12, at91sam9x5 family or sama5d3 family).
> diff --git a/drivers/gpu/drm/atmel-hlcdc/Makefile 
> b/drivers/gpu/drm/atmel-hlcdc/Makefile
> new file mode 100644
> index 000..10ae426
> --- /dev/null
> +++ b/drivers/gpu/drm/atmel-hlcdc/Makefile
> @@ -0,0 +1,7 @@
> +atmel-hlcdc-dc-y := atmel_hlcdc_crtc.o \
> + atmel_hlcdc_dc.o \
> + atmel_hlcdc_layer.o \
> + atmel_hlcdc_output.o \
> + atmel_hlcdc_plane.o
> +
> +obj-$(CONFIG_DRM_ATMEL_HLCDC)+= atmel-hlcdc-dc.o
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c 
> b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
> new file mode 100644
> index 000..02f7a98
> --- /dev/null
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
> @@ -0,0 +1,390 @@
> +/*
> + * Copyright (C) 2014 Traphandler
> + * Copyright (C) 2014 Free Electrons
> + *
> + * Author: Jean-Jacques Hiblot 
> + * Author: Boris BREZILLON 
> + *
> + * 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.
> + *
> + * This program is distributed in the hope that it will be useful, but 
> WITHOUT
> + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

[PATCH v7 05/11] drm: add Atmel HLCDC Display Controller support

[Boris Brezillon]

From: Boris BREZILLON 

The Atmel HLCDC (HLCD Controller) IP available on some Atmel SoCs (i.e.
at91sam9n12, at91sam9x5 family or sama5d3 family) provides a display
controller device.

This display controller supports at least one primary plane and might
provide several overlays and an hardware cursor depending on the IP
version.

At the moment, this driver only implements an RGB connector to interface
with LCD panels, but support for other kind of external devices might be
added later.

Signed-off-by: Boris Brezillon 
Reviewed-by: Rob Clark 
Tested-by: Anthony Harivel 
Tested-by: Ludovic Desroches 
---
 drivers/gpu/drm/Kconfig  |   2 +
 drivers/gpu/drm/Makefile |   1 +
 drivers/gpu/drm/atmel-hlcdc/Kconfig  |  13 +
 drivers/gpu/drm/atmel-hlcdc/Makefile |   7 +
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c   | 390 +++
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 531 +++
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | 216 ++
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c  | 638 +
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.h  | 394 +++
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c | 443 
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c  | 831 +++
 11 files changed, 3466 insertions(+)
 create mode 100644 drivers/gpu/drm/atmel-hlcdc/Kconfig
 create mode 100644 drivers/gpu/drm/atmel-hlcdc/Makefile
 create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
 create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
 create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
 create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c
 create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.h
 create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c
 create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index b066bb3..2d97f7e 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -185,6 +185,8 @@ source "drivers/gpu/drm/cirrus/Kconfig"

 source "drivers/gpu/drm/armada/Kconfig"

+source "drivers/gpu/drm/atmel-hlcdc/Kconfig"
+
 source "drivers/gpu/drm/rcar-du/Kconfig"

 source "drivers/gpu/drm/shmobile/Kconfig"
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 4a55d59..abb4f29 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_DRM_GMA500) += gma500/
 obj-$(CONFIG_DRM_UDL) += udl/
 obj-$(CONFIG_DRM_AST) += ast/
 obj-$(CONFIG_DRM_ARMADA) += armada/
+obj-$(CONFIG_DRM_ATMEL_HLCDC)  += atmel-hlcdc/
 obj-$(CONFIG_DRM_RCAR_DU) += rcar-du/
 obj-$(CONFIG_DRM_SHMOBILE) +=shmobile/
 obj-$(CONFIG_DRM_OMAP) += omapdrm/
diff --git a/drivers/gpu/drm/atmel-hlcdc/Kconfig 
b/drivers/gpu/drm/atmel-hlcdc/Kconfig
new file mode 100644
index 000..942407f
--- /dev/null
+++ b/drivers/gpu/drm/atmel-hlcdc/Kconfig
@@ -0,0 +1,13 @@
+config DRM_ATMEL_HLCDC
+   tristate "DRM Support for ATMEL HLCDC Display Controller"
+   depends on DRM && OF && COMMON_CLK
+   select DRM_GEM_CMA_HELPER
+   select DRM_KMS_HELPER
+   select DRM_KMS_FB_HELPER
+   select DRM_KMS_CMA_HELPER
+   select DRM_PANEL
+   select MFD_ATMEL_HLCDC
+   depends on OF
+   help
+ Choose this option if you have an ATMEL SoC with an HLCDC display
+ controller (i.e. at91sam9n12, at91sam9x5 family or sama5d3 family).
diff --git a/drivers/gpu/drm/atmel-hlcdc/Makefile 
b/drivers/gpu/drm/atmel-hlcdc/Makefile
new file mode 100644
index 000..10ae426
--- /dev/null
+++ b/drivers/gpu/drm/atmel-hlcdc/Makefile
@@ -0,0 +1,7 @@
+atmel-hlcdc-dc-y := atmel_hlcdc_crtc.o \
+   atmel_hlcdc_dc.o \
+   atmel_hlcdc_layer.o \
+   atmel_hlcdc_output.o \
+   atmel_hlcdc_plane.o
+
+obj-$(CONFIG_DRM_ATMEL_HLCDC)  += atmel-hlcdc-dc.o
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c 
b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
new file mode 100644
index 000..02f7a98
--- /dev/null
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
@@ -0,0 +1,390 @@
+/*
+ * Copyright (C) 2014 Traphandler
+ * Copyright (C) 2014 Free Electrons
+ *
+ * Author: Jean-Jacques Hiblot 
+ * Author: Boris BREZILLON 
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see