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Date: Thu, 20 Aug 2015 03:03:30 -0500 From: Yakir Yang <ykk@...k-chips.com> To: Jingoo Han <jingoohan1@...il.com> CC: Archit Taneja <architt@...eaurora.org>, Heiko Stuebner <heiko@...ech.de>, Thierry Reding <treding@...dia.com>, Fabio Estevam <fabio.estevam@...escale.com>, Inki Dae <inki.dae@...sung.com>, "joe@...ches.com" <joe@...ches.com>, Russell King <rmk+kernel@....linux.org.uk>, "seanpaul@...gle.com" <seanpaul@...gle.com>, "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>, Andrzej Hajda <a.hajda@...sung.com>, Gustavo Padovan <gustavo.padovan@...labora.co.uk>, "linux-samsung-soc@...r.kernel.org" <linux-samsung-soc@...r.kernel.org>, Vincent Palatin <vpalatin@...omium.org>, "linux-rockchip@...ts.infradead.org" <linux-rockchip@...ts.infradead.org>, Kishon Vijay Abraham I <kishon@...com>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, Pawel Moll <pawel.moll@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, "dianders@...gle.com" <dianders@...gle.com>, Rob Herring <robh+dt@...nel.org>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Kyungmin Park <kyungmin.park@...sung.com>, "djkurtz@...gle.com" <djkurtz@...gle.com>, Kumar Gala <galak@...eaurora.org>, "ajaynumb@...il.com" <ajaynumb@...il.com>, Andy Yan <andy.yan@...k-chips.com> Subject: Re: [PATCH v3 0/14] Add Analogix Core Display Port Driver Hi Jingoo, On 08/20/2015 01:55 AM, Jingoo Han wrote: > On 2015. 8. 20., at PM 3:23, Yakir Yang <ykk@...k-chips.com> wrote: >> Hi Jingoo & Archit, >> >> >>> On 08/20/2015 12:54 AM, Jingoo Han wrote: >>>> On 2015. 8. 20., at PM 1:29, Archit Taneja <architt@...eaurora.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) > I prefer "analogix". Okay :) - Yakir > Best regards, > Jingoo Han > >> Thanks, >> - Yakir >>> Best regards, >>> Jingoo Han >>> >>>> Thanks, >>>> Archit >>>> >>>> -- >>>> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, >>>> a Linux Foundation Collaborative Project >> > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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