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    Subject[PATCH 0/8] Cleanup and add support for SSD1305
    Date
    From: Thomas Niederprüm <niederp@physik.uni-kl.de>

    This patch series is the result of making the ssd1307fb driver work with
    a Newhaven OLED display using the Solomon SSD1305 controller. To achieve
    this the intialization code for the SSD1306 and the SSD1307 is merged
    and based on device tree configuration. This gets rid of the magic bit
    values that were used so far.
    Based on these changes it was straight forward to add support for the
    SSD1305 controller.

    While working with the driver I realized that it was not possible to
    correctly mmap the video memory from userspace since the memory
    reserved by kzalloc is not page aligned. This problem is fixed by
    using vmalloc as it is done inthe vfb driver.

    Furthermore module parameters are added to set the bits per pixel
    and the delay for the deferred io update. It makes sense to set
    the bits per pixel for the video memory to 8 bits since there is
    only very poor userspace support for 1 bit framebuffers.

    Also sysfs handles are added to make the contrast settings and dim
    mode setting available in userspace.

    Thomas Niederprüm (8):
    Documentation: dts: add missing Solomon Systech vendor prefix.
    fbdev: ssd1307fb: Unify init code and make controller configurable
    from device tree
    fbdev: ssd1307fb: Add support for SSD1305
    fbdev: ssd1307fb: Use vmalloc to allocate video memory.
    fbdev: ssd1307fb: Add module parameter bitsperpixel.
    fbdev: ssd1307fb: Add module parameter to set update delay of the
    deffered io.
    fbdev: ssd1307fb: Add sysfs handles to expose contrast and dim setting
    to userspace.
    fbdev: ssd1307fb: Turn off display on driver unload.

    .../devicetree/bindings/vendor-prefixes.txt | 1 +
    .../devicetree/bindings/video/ssd1307fb.txt | 13 +-
    drivers/video/fbdev/ssd1307fb.c | 426 ++++++++++++++++-----
    3 files changed, 346 insertions(+), 94 deletions(-)

    --
    2.1.1



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