Re: [PATCH RFC v2 00/14] Add support for i.MX MIPI DSI DRM driver

[Liu Ying]

Hi Andy,

On 12/19/2014 02:33 PM, Andy Yan wrote:
> Hi Liu Ying:
>
>   I foud Rockchip RK618 (a mfd function device with mipi dsiïlvds
> transmitterãHDMI TXãand audio codecïand
> controlled by the SOC from i2c ) have the same register layout with your
> i.MX MIPI DSIïwhich means RK618 MIPI
> DSI also have the Synopsys compatible DSI IPãSo Would you please make
> this drives more platform independentï

I may try to place the Synopsys DesignWare MIPI DSI driver in the
drm/bridge directory and make it as less platform-dependant as
possible.

I have no access to the Rockchip RK618 chip and it's reference menu.
You probably may add the Rockchip part support later.

Regards,
Liu Ying

> At 2014-12-18 15:11:22, "Liu Ying" <Ying.Liu@xxxxxxxxxxxxx> wrote:
> > Hi,
> >
> > This series addressed almost all comments from Thierry Redding and Russell
> > on v1.
> >
> > This series adds support for i.MX MIPI DSI DRM driver.
> > Currently, the MIPI DSI driver only supports the burst with sync pulse mode.
> >
> > This series also includes a DRM panel driver for the Truly TFT480800-16-E panel
> > which is driven by the Himax HX8369A driver IC.  The driver IC data sheet could
> > be found at [1].  As mentioned by the data sheet, the driver IC supports several
> > interface modes.  Currently, the DRM panel driver only supports the MIPI DSI video
> > mode.  New interface modes could be added later(perhaps, just like the way the DRM
> > simple panel driver supports both MIPI DSI interface panels and simple(parallel)
> > interface panels).
> >
> > The MIPI DSI feature is tested on i.MX6Q SabreSD board and i.MX6DL SabreSD board.
> > The MIPI DSI display could be enabled directly on i.MX6Q SabreSD board after
> > applying this series, because the 26.4MHz pixel clock the panel requires could be
> > derived from the IPU HSP clock(264MHz) with an integer divider.
> > On i.MX6DL SabreSD board, we need to manually disable the LVDS and HDMI displays in
> > the device tree blob, since the i.MX6DL IPU HSP clock is 198MHz at present, which
> > makes the pixel clock share the PLL5 video clock source with the LVDS and HDMI,
> > thus, the panel cannot get the pixel clock rate it wants.
> >
> > Patch 01/15 is needed to get a precise pixel clock rate(26.4MHz) from the PLL5 video
> > clock.  If we don't have this patch, the pixel clock rate is about 20MHz, which
> > causes a horitonal shift on the display image.
> >
> > This series can be applied on the drm-next branch.
> >
> > [1] http://www.allshore.com/pdf/Himax_HX8369-A.pdf
> >
> > Liu Ying (14):
> >  clk: divider: Correct parent clk round rate if no bestdiv is normally
> >    found
> >  of: Add vendor prefix for Himax Technologies Inc.
> >  of: Add vendor prefix for Truly Semiconductors Limited
> >  ARM: imx6q: Add GPR3 MIPI muxing control register field shift bits
> >    definition
> >  ARM: imx6q: clk: Add the video_27m clock
> >  ARM: dts: imx6qdl: Move existing MIPI DSI ports into a new 'ports'
> >    node
> >  drm/dsi: Add a helper to get bits per pixel of MIPI DSI pixel format
> >  drm: imx: Add MIPI DSI host controller driver
> >  drm: panel: Add support for Himax HX8369A MIPI DSI panel
> >  ARM: dtsi: imx6qdl: Add support for MIPI DSI host controller
> >  ARM: dts: imx6qdl-sabresd: Add support for TRULY TFT480800-16-E MIPI
> >    DSI panel
> >  ARM: imx_v6_v7_defconfig: Cleanup for imx drm being moved out of
> >    staging
> >  ARM: imx_v6_v7_defconfig: Add support for MIPI DSI host controller
> >  ARM: imx_v6_v7_defconfig: Add support for Himax HX8369A panel
> >
> > .../devicetree/bindings/drm/imx/mipi_dsi.txt       |   78 ++
> > .../devicetree/bindings/panel/himax,hx8369a.txt    |   41 +
> > .../devicetree/bindings/vendor-prefixes.txt        |    2 +
> > arch/arm/boot/dts/imx6q.dtsi                       |   20 +-
> > arch/arm/boot/dts/imx6qdl-sabresd.dtsi             |   20 +
> > arch/arm/boot/dts/imx6qdl.dtsi                     |   30 +-
> > arch/arm/configs/imx_v6_v7_defconfig               |   17 +-
> > arch/arm/mach-imx/clk-imx6q.c                      |    1 +
> > drivers/clk/clk-divider.c                          |    3 +-
> > drivers/gpu/drm/imx/Kconfig                        |    6 +
> > drivers/gpu/drm/imx/Makefile                       |    1 +
> > drivers/gpu/drm/imx/imx-mipi-dsi.c                 | 1056 ++++++++++++++++++++
> > drivers/gpu/drm/panel/Kconfig                      |    5 +
> > drivers/gpu/drm/panel/Makefile                     |    1 +
> > drivers/gpu/drm/panel/panel-himax-hx8369a.c        |  573 +++++++++++
> > include/drm/drm_mipi_dsi.h                         |   14 +
> > include/dt-bindings/clock/imx6qdl-clock.h          |    3 +-
> > include/linux/mfd/syscon/imx6q-iomuxc-gpr.h        |    1 +
> > 18 files changed, 1844 insertions(+), 28 deletions(-)
> > create mode 100644 Documentation/devicetree/bindings/drm/imx/mipi_dsi.txt
> > create mode 100644 Documentation/devicetree/bindings/panel/himax,hx8369a.txt
> > create mode 100644 drivers/gpu/drm/imx/imx-mipi-dsi.c
> > create mode 100644 drivers/gpu/drm/panel/panel-himax-hx8369a.c
> >
> > --
> > 2.1.0
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@xxxxxxxxxxxxxxxxxxxxx
> > http://lists.freedesktop.org/mailman/listinfo/dri-devel
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