On 9 March 2016 at 18:57, Archit Taneja <architt@xxxxxxxxxxxxxx> wrote: > ADV7533 is a DSI to HDMI encoder chip. It's like ADV7511, but with an > additional DSI RX block that takes in DSI video mode output. > > Trying to get this driver merged has had some challenges: > > - ADV7533 has an I2C control bus, but acts as a DSI peripheral too. > After discussions, it was concluded that we'd want to provide an > API to create MIPI DSI devices, rather than expose two different > interfaces on DT. The first version [1] tried the former approach > the second version [2] showed how the driver would look like if > exposed 2 DT nodes. This lateset patchset relies on the MIPI DSI > device creation API provided by [3], this has been accepted and > should be merged for 4.6. > > - The driver was designed as an I2C slave encoder. When ADV7533 > patches were posted [1], it was modelled as a bridge, but ADV7511 > and others were still left as I2C slave encoders. This wasn't > accepted. After discussions, it was decided that ADV7511 too would > be converted into a bridge driver, and all the users of ADV7511 > should assume it is a bridge. This bridge conversion was done in > [4]. There is still some debate over whether the bridge driver be > involved in the connector creation, or the KMS driver that has > the whole view of the display pipeline. This discussion shouldn't > affect this patch set, though. > > This patch set enables ADV7533 support with the above two issues > now resolved. It also incorporates ADV7533 specific features and fixes > that we've discovered since the first version of this patch was posted. > > Tested on ADV7533 chips on DB410c. It should work on the Hikey board too. > I'd appreaciate if someone could test it on a ADV7511 platform since I > don't have one. > > [4] > https://lists.freedesktop.org/archives/dri-devel/2016-January/098287.html > > [3] > https://lkml.org/lkml/2016/2/12/67 > > [2] > https://lists.freedesktop.org/archives/dri-devel/2015-September/089884.html > > [1]: > https://lists.freedesktop.org/archives/dri-devel/2015-July/087088.html > > Archit Taneja (7): > drm/i2c: adv7511: Convert to drm_bridge > drm/i2c: adv7511: Fix mutex deadlock when interrupts are disabled > drm/i2c: adv7511: Initial support for ADV7533 > drm/i2c: adv7511: Create a MIPI DSI device > drm/i2c: adv7511: Use internal timing generator > drm/i2c: adv7511: Change number of DSI lanes dynamically > dt-bindings: drm/bridge: Update bindings for ADV7533 > > .../bindings/display/bridge/adi,adv7511.txt | 25 +- > drivers/gpu/drm/i2c/adv7511.c | 539 +++++++++++++++++---- > 2 files changed, 476 insertions(+), 88 deletions(-) > > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > hosted by The Linux Foundation > This patch set is Tested-by: Xinliang Liu <xinliang.liu@xxxxxxxxxx> Thanks -xinliang -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
