Hello, Sorry for the noise, but I forgot to add the LAKML in Cc. This patch series adds support for Atmel HLCDC (HLCD Controller) available on some Atmel SoCs (i.e. the sama5d3 family). The first two versions of this series didn't receive any reviews from DRM maintainers or experienced DRM developers. Anyway, I hope I'll get some feedback on this version. The HLCDC actually provides a Display Controller and a PWM device, hence I decided to declare an MFD device exposing 2 subdevices: a display controller and a PWM chip. This also solves a circular dependency issue preventing HLCDC driver from unloading. The HLCDC request a drm_panel device, which request a backlight device (a PWM backlight), which depends on a PWM which is provided by the HLCDC driver (hlcdc -> panel -> backlight -> hlcdc (pwm part)). The current implementation only supports sama5d3 SoCs but other SoCs should be easily ported by defining new compatible strings and adding HLCDC description structures for these SoCs. The drivers supports basic CRTC functionalities, several overlays and an hardware cursor. At the moment, it only supports connection to LCD panels through an RGB connector (defined as an LVDS connector in my implementation), though connection to other kind of devices (like DRM bridges) can be added later. It also supports several RGB format on all planes and some YUV formats on the HEO overlay plane. Best Regards, Boris Changes since v2: - fix coding style issues (macro indentation) - make use of GENMASK in several places - declare regmap config as a static structure - rework hlcdc plane update API - rework cursor handling to make use of the new plane update API - fix backporch config - do not use devm_regmap_init_mmio_clk to avoid extra clk_enable clk disable calls when accessing registers - explicitely include regmap and clk headers instead of relying on atmel-hlcdc.h inclusions - make the atmel-hlcdc driver depends on CONFIG_OF - separate DT bindings documentation from driver implementation - support several pin muxing for HLCDC pins on sama5d3 SoCs Changes since v1: - replace the backlight driver by a PWM driver - make use of drm_panel infrastructure - split driver code in several subsystem: MFD, PWM and DRM - add support for overlays - add support for hardware cursor Boris BREZILLON (11): mfd: add atmel-hlcdc driver mfd: add documentation for atmel-hlcdc DT bindings pwm: add support for atmel-hlcdc-pwm device pwm: add DT bindings documentation for atmel-hlcdc-pwm driver drm: add Atmel HLCDC Display Controller support drm: add DT bindings documentation for atmel-hlcdc-dc driver ARM: AT91/dt: split sama5d3 lcd pin definitions to match RGB mode configs ARM: AT91/dt: add alternative pin muxing for sama5d3 lcd pins ARM: at91/dt: define the HLCDC node available on sama5d3 SoCs ARM: at91/dt: add LCD panel description to sama5d3xdm.dtsi ARM: at91/dt: enable the LCD panel on sama5d3xek boards .../devicetree/bindings/drm/atmel-hlcdc-dc.txt | 59 ++ .../devicetree/bindings/mfd/atmel-hlcdc.txt | 40 ++ .../devicetree/bindings/pwm/atmel-hlcdc-pwm.txt | 46 ++ arch/arm/boot/dts/sama5d31ek.dts | 24 + arch/arm/boot/dts/sama5d33ek.dts | 24 + arch/arm/boot/dts/sama5d34ek.dts | 24 + arch/arm/boot/dts/sama5d36ek.dts | 24 + arch/arm/boot/dts/sama5d3_lcd.dtsi | 197 +++++- arch/arm/boot/dts/sama5d3xdm.dtsi | 43 ++ drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/atmel-hlcdc/Kconfig | 11 + drivers/gpu/drm/atmel-hlcdc/Makefile | 7 + drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 469 +++++++++++++ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 474 ++++++++++++++ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | 210 ++++++ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c | 706 ++++++++++++++++++++ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.h | 422 ++++++++++++ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_panel.c | 351 ++++++++++ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 729 +++++++++++++++++++++ drivers/mfd/Kconfig | 12 + drivers/mfd/Makefile | 1 + drivers/mfd/atmel-hlcdc.c | 119 ++++ drivers/pwm/Kconfig | 9 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-atmel-hlcdc.c | 229 +++++++ include/linux/mfd/atmel-hlcdc.h | 78 +++ 27 files changed, 4281 insertions(+), 31 deletions(-) create mode 100644 Documentation/devicetree/bindings/drm/atmel-hlcdc-dc.txt create mode 100644 Documentation/devicetree/bindings/mfd/atmel-hlcdc.txt create mode 100644 Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt 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_panel.c create mode 100644 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c create mode 100644 drivers/mfd/atmel-hlcdc.c create mode 100644 drivers/pwm/pwm-atmel-hlcdc.c create mode 100644 include/linux/mfd/atmel-hlcdc.h -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html