[PATCH v3 0/5] ARM: vf610: Add DCU framebuffer driver for Vybrid VF610 platform

[Wang Huan-B18965]

Hi, Jean-Christophe, Tomi,

       Do you have any comments for these patches?

       Thanks!


Best Regards,
Alison Wang

> -----Original Message-----
> From: linux-arm-kernel [mailto:linux-arm-kernel-
> bounces at lists.infradead.org] On Behalf Of Alison Wang
> Sent: Thursday, August 15, 2013 4:02 PM
> To: plagnioj at jcrosoft.com; tomi.valkeinen at ti.com; shawn.guo at linaro.org;
> Estevam Fabio-R49496; linux-fbdev at vger.kernel.org; linux-arm-
> kernel at lists.infradead.org
> Cc: Jin Zhengxiong-R64188
> Subject: [PATCH v3 0/5] ARM: vf610: Add DCU framebuffer driver for
> Vybrid VF610 platform
> 
> This series contain DCU framebuffer driver for Freescale Vybrid VF610
> platform.
> 
> The Display Controller Unit (DCU) module is a system master that
> fetches graphics stored in internal or external memory and displays
> them on a TFT LCD panel. A wide range of panel sizes is supported and
> the timing of the interface signals is highly configurable.
> Graphics are read directly from memory and then blended in real-time,
> which allows for dynamic content creation with minimal CPU intervention.
> 
> The features:
> (1) Full RGB888 output to TFT LCD panel.
> (2) For the current LCD panel, WQVGA "480x272" is tested.
> (3) Blending of each pixel using up to 4 source layers dependent on
> size of panel.
> (4) Each graphic layer can be placed with one pixel resolution in
> either axis.
> (5) Each graphic layer support RGB565 and RGB888 direct colors without
> alpha channel and BGRA8888 direct colors with an alpha channel.
> (6) Each graphic layer support alpha blending with 8-bit resolution.
> 
> Changes in v3:
> - Correct DCU_MODE_BLEND_ITER macro definition.
> - Remove hardcode panel description in the driver. Use the videomode
> helpers to get the relevant data from devicetree.
> - Correct the wrong indentation.
> - Use dev_* for printing messages in drivers.
> - Change calc_div_ratio() to fsl_dcu_calc_div(), and rewrite this
> function.
> - Use devm_request_irq() instead of request_irq().
> - Drop useless code.
> - Increase the layers number to the maximum 6.
> - Use dma_alloc_writecombine() instead of dma_alloc_coherent().
> - Use runtime PM.
> 
> Changes in v2:
> - Add a document for DCU framebuffer driver under
> Documentation/devicetree/bindings/fb/.
> 
> ----------------------------------------------------------------
> Alison Wang (5):
>       ARM: dts: vf610: Add DCU and TCON nodes
>       ARM: dts: vf610-twr: Enable DCU and TCON devices
>       ARM: clk: vf610: Add DCU and TCON clock support
>       fb: Add DCU framebuffer driver for Vybrid VF610 platform
>       Documentation: DT: Add DCU framebuffer driver
> 
>  Documentation/devicetree/bindings/fb/fsl-dcu-fb.txt |   67 +++++
>  arch/arm/boot/dts/vf610-twr.dts                     |   32 +++
>  arch/arm/boot/dts/vf610.dtsi                        |   19 +-
>  arch/arm/mach-imx/clk-vf610.c                       |    5 +
>  drivers/video/Kconfig                               |   10 +
>  drivers/video/Makefile                              |    1 +
>  drivers/video/fsl-dcu-fb.c                          | 1095
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> +++++++++
>  include/dt-bindings/clock/vf610-clock.h             |    3 +-
>  8 files changed, 1230 insertions(+), 2 deletions(-)  create mode
> 100644 Documentation/devicetree/bindings/fb/fsl-dcu-fb.txt
>  create mode 100644 drivers/video/fsl-dcu-fb.c
> 
> 
> 
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