[PATCH v3 0/14] Add Analogix Core Display Port Driver
Yakir Yang
ykk at rock-chips.com
Wed Aug 19 23:23:56 PDT 2015
Hi Jingoo & Archit,
On 08/20/2015 12:54 AM, Jingoo Han wrote:
> On 2015. 8. 20., at PM 1:29, Archit Taneja <architt at codeaurora.org> wrote:
>> Hi,
>>
>>> On 08/19/2015 08:18 PM, Yakir Yang wrote:
>>>
>>> Hi all,
>>> The Samsung Exynos eDP controller and Rockchip RK3288 eDP controller
>>> share the same IP, so a lot of parts can be re-used. I split the common
>>> code into bridge directory, then rk3288 and exynos only need to keep
>>> some platform code. Cause I can't find the exact IP name of exynos dp
>>> controller, so I decide to name dp core driver with "analogix" which I
>>> find in rk3288 eDP TRM ;)
>>>
>>> Beyond that, there are three light registers setting differents bewteen
>>> exynos and rk3288.
>>> 1. RK3288 have five special pll resigters which not indicata in exynos
>>> dp controller.
>>> 2. The address of DP_PHY_PD(dp phy power manager register) are different
>>> between rk3288 and exynos.
>>> 3. Rk3288 and exynos have different setting with AUX_HW_RETRY_CTL(dp debug
>>> register).
>>>
>>> I have verified this series on two kinds of rockchip platform board, one
>>> is rk3288 sdk board which connect with a 2K display port monitor, the other
>>> is google jerry chromebook which connect with a eDP screen "cnm,n116bgeea2",
>>> both of them works rightlly.
>>>
>>> I haven't verified the dp function on samsung platform, cause I haven't got
>>> exynos boards. I can only ensure that there are no build error on samsung
>>> platform, wish some samsung guys help to test. ;)
>>>
>>> Thanks,
>>> - Yakir
>>>
>>> Changes in v3:
>>> - Take Thierry Reding suggest, move exynos's video_timing code
>>> to analogix_dp-exynos platform driver, add get_modes method
>>> to struct analogix_dp_plat_data.
>>> - Take Heiko suggest, rename some "samsung*" dts propery to "analogix*".
>>> - Take Thierry Reding suggest, dynamic parse video timing info from
>>> struct drm_display_mode and struct drm_display_info.
>>> - Take Thierry Reding suggest, link_rate and lane_count shouldn't config to
>>> the DT property value directly, but we can take those as hardware limite.
>>> For example, RK3288 only support 4 physical lanes of 2.7/1.62 Gbps/lane,
>>> so DT property would like "link-rate = 0x0a" "lane-count = 4".
>>> - Take Heiko suggest, add devicetree binding documents.
>>> - Take Thierry Reding suggest, remove sync pol & colorimetry properies
>>> from the new analogix dp driver devicetree binding.
>>> - Update the exist exynos dtsi file with the latest DP DT properies.
>>> - Take Thierry Reding and Heiko suggest, leave "sclk_edp_24m" to rockchip
>>> dp phy driver which name to "24m", and leave "sclk_edp" to analogix dp
>>> core driver which name to "dp", and leave "pclk_edp" to rockchip dp platform
>>> driver which name to "pclk".
>>> - Take Heiko suggest, add devicetree binding document.
>>> - Take Heiko suggest, remove "rockchip,panel" DT property, take use of remote
>>> point to get panel node.
>>> - Add the new function point analogix_dp_platdata.get_modes init.
>>> - Take Heiko suggest, add rockchip dp phy driver,
>>> collect the phy clocks and power control.
>>> - Add "analogix,need-force-hpd" to indicate whether driver need foce
>>> hpd when hpd detect failed.
>>> - move dp hpd detect to connector detect function.
>>> - Add edid modes parse support
>>>
>>> Changes in v2:
>>> - Take Joe Preches advise, improved commit message more readable, and
>>> avoid using some uncommon style like bellow:
>>> - retval = exynos_dp_read_bytes_from_i2c(...
>>> ...)
>>> + retval =
>>> + exynos_dp_read_bytes_from_i2c(......);
>>> - Take Jingoo Han suggest, just remove my name from author list.
>>> - Take Jingoo Han suggest, remove new copyright
>>> - Fix compiled failed dut to analogix_dp_device misspell
>>> - Take Heiko suggest, get panel node with remote-endpoint method,
>>> and create devicetree binding for driver.
>>> - Remove the clock enable/disbale with "sclk_edp" & "sclk_edp_24m",
>>> leave those clock to rockchip dp phy driver.
>>> - Add GNU license v2 declared and samsung copyright
>>> - Fix compile failed dut to phy_pd_addr variable misspell error
>>>
>>> Yakir Yang (14):
>>> drm: exynos/dp: fix code style
>>> drm: exynos/dp: convert to drm bridge mode
>>> drm: bridge: analogix_dp: split exynos dp driver to bridge dir
>>> drm: bridge/analogix_dp: dynamic parse sync_pol & interlace &
>>> colorimetry
>>> drm: bridge/analogix_dp: fix link_rate & lane_count bug
>>> Documentation: drm/bridge: add document for analogix_dp
>>> drm: rockchip/dp: add rockchip platform dp driver
>>> phy: Add driver for rockchip Display Port PHY
>>> drm: bridge/analogix_dp: add platform device type support
>>> drm: bridge: analogix_dp: add some rk3288 special registers setting
>>> drm: bridge: analogix_dp: try force hpd after plug in lookup failed
>>> drm: bridge/analogix_dp: expand the delay time for hpd detect
>>> drm: bridge/analogix_dp: move hpd detect to connector detect function
>>> drm: bridge/analogix_dp: add edid modes parse in get_modes method
>>>
>>> .../devicetree/bindings/drm/bridge/analogix_dp.txt | 73 +
>>> .../devicetree/bindings/phy/rockchip-dp-phy.txt | 26 +
>>> .../bindings/video/analogix_dp-rockchip.txt | 83 ++
>>> .../devicetree/bindings/video/exynos_dp.txt | 51 +-
>>> arch/arm/boot/dts/exynos5250-arndale.dts | 10 +-
>>> arch/arm/boot/dts/exynos5250-smdk5250.dts | 10 +-
>>> arch/arm/boot/dts/exynos5250-snow.dts | 12 +-
>>> arch/arm/boot/dts/exynos5250-spring.dts | 12 +-
>>> arch/arm/boot/dts/exynos5420-peach-pit.dts | 12 +-
>>> arch/arm/boot/dts/exynos5420-smdk5420.dts | 10 +-
>>> arch/arm/boot/dts/exynos5800-peach-pi.dts | 12 +-
>>> drivers/gpu/drm/bridge/Kconfig | 5 +
>>> drivers/gpu/drm/bridge/Makefile | 1 +
>>> drivers/gpu/drm/bridge/analogix_dp_core.c | 1382 +++++++++++++++++++
>>> drivers/gpu/drm/bridge/analogix_dp_core.h | 286 ++++
>>> drivers/gpu/drm/bridge/analogix_dp_reg.c | 1294 ++++++++++++++++++
>>> .../exynos_dp_reg.h => bridge/analogix_dp_reg.h} | 270 ++--
>>> drivers/gpu/drm/exynos/Kconfig | 5 +-
>>> drivers/gpu/drm/exynos/Makefile | 2 +-
>>> drivers/gpu/drm/exynos/analogix_dp-exynos.c | 347 +++++
>>> drivers/gpu/drm/exynos/exynos_dp_core.c | 1416 --------------------
>>> drivers/gpu/drm/exynos/exynos_dp_core.h | 282 ----
>>> drivers/gpu/drm/exynos/exynos_dp_reg.c | 1263 -----------------
>>> drivers/gpu/drm/rockchip/Kconfig | 9 +
>>> drivers/gpu/drm/rockchip/Makefile | 1 +
>>> drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 390 ++++++
>>> drivers/phy/Kconfig | 7 +
>>> drivers/phy/Makefile | 1 +
>>> drivers/phy/phy-rockchip-dp.c | 185 +++
>>> include/drm/bridge/analogix_dp.h | 40 +
>>> 30 files changed, 4325 insertions(+), 3172 deletions(-)
>>> create mode 100644 Documentation/devicetree/bindings/drm/bridge/analogix_dp.txt
>>> create mode 100644 Documentation/devicetree/bindings/phy/rockchip-dp-phy.txt
>>> create mode 100644 Documentation/devicetree/bindings/video/analogix_dp-rockchip.txt
>>> create mode 100644 drivers/gpu/drm/bridge/analogix_dp_core.c
>>> create mode 100644 drivers/gpu/drm/bridge/analogix_dp_core.h
>>> create mode 100644 drivers/gpu/drm/bridge/analogix_dp_reg.c
>> Minor comment: Since there are a few files required for the driver,
>> could you create a separate folder within drivers/gpu/drm/bridge?
> I agree on this opinion.
> Thank you.
Thanks for your comment ;)
Yeah, bridge/ have been add four new files for this driver, it would be
better to
collect into a separate folder.
I'm wondering should I just name the folder with "analogix_dp/", or we
can make
it more common (like "analogix/")? (personally I do like the last one)
Thanks,
- Yakir
> Best regards,
> Jingoo Han
>
>> Thanks,
>> Archit
>>
>> --
>> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
>> a Linux Foundation Collaborative Project
>
>
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