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Message-ID: <1767456.MuDjE2lUmn@diego>
Date: Fri, 18 Dec 2015 00:51:36 +0100
From: Heiko Stübner <heiko@...ech.de>
To: Yakir Yang <ykk@...k-chips.com>
Cc: Inki Dae <inki.dae@...sung.com>,
Mark Yao <mark.yao@...k-chips.com>,
Jingoo Han <jingoohan1@...il.com>,
Thierry Reding <treding@...dia.com>,
Krzysztof Kozlowski <k.kozlowski@...sung.com>,
Rob Herring <robh+dt@...nel.org>,
Russell King <linux@....linux.org.uk>,
emil.l.velikov@...il.com,
Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
Kishon Vijay Abraham I <kishon@...com>,
javier@....samsung.com, Andy Yan <andy.yan@...k-chips.com>,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
linux-rockchip@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v11 0/19] Add Analogix Core Display Port Driver
Hi Yakir,
Am Mittwoch, 16. Dezember 2015, 11:20:18 schrieb Yakir Yang:
> 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
I'm really sorry for not thinking of this earlier, but I think we'll be doing
the atomic modesetting conversion of the drm/kms driver first - see v3 series
from Mark Yao.
Could you handle necessary changes to make it apply and work _after_ the
atomic modesetting conversion please?
Thanks
Heiko
> But there are still 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).
>
> This series have been well tested on Rockchip platform with eDP panel on
> Jerry Chromebook and Display Port Monitor on RK3288 board. Also I have
> tested on Samsung Snow and Peach Pit Chromebooks, and thanks to
> Javier@...sung help to retest the whole series on Samsung Exynos5800 Peach
> Pi Chromebook, glad to say that things works rightlly.
>
> Thanks,
> - Yakir
>
>
> Changes in v11:
> - Uses tabs to fix the indentation issues in analogix_dp_core.h (Heiko)
> - Correct the title of this rockchip dp phy document(Rob)
> - Add the ack from Rob Herring
> - Rename the "analogix,need-force-hpd" to common 'force-hpd' (Rob)
> - Add the ack from Rob Herring
> - Revert parts of Gustavo Padovan's changes in commit:
> drm/exynos: do not start enabling DP at bind() phase
> Add dp phy poweron function in bind time.
> - Move the panel prepare from get_modes time to bind time, and move
> the panel unprepare from bridge->disable to unbind time. (Heiko)
>
> Changes in v10:
> - Add the ack from Rob Herring
> - Correct the ROCKCHIP_ANALOGIX_DP indentation in Kconfig to tabs here
> (Heiko) - Add the ack from Rob Herring
> - Fix the wrong macro value of GRF_EDP_REF_CLK_SEL_INTER_HIWORD_MASK
> BIT(4) -> BIT(20)
> - Remove the surplus "plat_data" check. (Heiko)
> - switch (dp->plat_data && dp->plat_data->dev_type) {
> + switch (dp->plat_data->dev_type) {
>
> Changes in v9:
> - Document more details for 'ports' property.
> - Removed the unused the variable "res" in probe function. (Heiko)
> - Removed the unused head file.
>
> Changes in v8:
> - Correct the right document path of display-timing.txt (Heiko)
> - Correct the misspell of 'from' to 'frm'. (Heiko)
> - Modify the commit subject name. (Heiko)
> - Fix the mixed spacers on macro definitions. (Heiko)
> - Remove the unnecessary empty line after clk_prepare_enable. (Heiko)
> - Remove the specific address in the example node name. (Heiko)
>
> Changes in v7:
> - Back to use the of_property_read_bool() interfacs to provoid backward
> compatibility of "hsync-active-high" "vsync-active-high" "interlaced"
> to avoid -EOVERFLOW error (Krzysztof)
> - Simply the commit message. (Kishon)
> - Symmetrical enable/disbale the phy clock and power. (Kishon)
> - Simplify the commit message. (Kishon)
>
> Changes in v6:
> - Fix the Kconfig recursive dependency (Javier)
> - Fix Peach Pit hpd property name error:
> - hpd-gpio = <&gpx2 6 0>;
> + hpd-gpios = <&gpx2 6 0>;
>
> Changes in v5:
> - Correct the check condition of gpio_is_valid when driver try to get
> the "hpd-gpios" DT propery. (Heiko)
> - Move the platform attach callback in the front of core driver bridge
> attch function. Cause once platform failed at attach, core driver should
> still failed, so no need to init connector before platform attached
> (Krzysztof) - Keep code style no changes with the previous exynos_dp_code.c
> in this patch, and update commit message about the new export symbol
> (Krzysztof) - Gather the device type patch (v4 11/16) into this one.
> (Krzysztof) - leave out the connector registration to analogix platform
> driver. (Thierry) - Resequence this patch after analogix_dp driver have
> been split
> from exynos_dp code, and rephrase reasonable commit message, and
> remove some controversial style (Krzysztof)
> - analogix_dp_write_byte_to_dpcd(
> - dp, DP_TEST_RESPONSE,
> + analogix_dp_write_byte_to_dpcd(dp,
> + DP_TEST_RESPONSE,
> DP_TEST_EDID_CHECKSUM_WRITE);
> - Switch video timing type to "u32", so driver could use
> "of_property_read_u32" to get the backword timing values. Krzysztof suggest
> me that driver could use the "of_property_read_bool" to get backword timing
> values, but that interfacs would modify the original drm_display_mode
> timing directly (whether those properties exists or not).
> - Correct the misspell in commit message. (Krzysztof)
> - Remove the empty line at the end of document, and correct the endpoint
> numbers in the example DT node, and remove the regulator iomux setting
> in driver code while using the pinctl in devicetree instead. (Heiko)
> - Add device type declared, cause the previous "platform device type
> support (v4 11/16)" already merge into (v5 02/14).
> - Implement connector registration code. (Thierry)
> - Split binding doc's from driver changes. (Rob)
> - Add eDP hotplug pinctrl property. (Heiko)
> - Remove "reg" DT property, cause driver could poweron/poweroff phy via
> the exist "grf" syscon already. And rename the example DT node from
> "edp_phy: phy@...70274" to "edp_phy: edp-phy" directly. (Heiko)
> - Add deivce_node at the front of driver, update phy_ops type from "static
> struct" to "static const struct". And correct the input paramters of
> devm_phy_create() interfaces. (Heiko)
> - Split binding doc's from driver changes. (Rob)
> - Update the rockchip,grf explain in document, and correct the clock
> required elemets in document. (Rob & Heiko)
> - Fix compiled error (Heiko)
> - Using the connector display info message to configure eDP driver input
> video mode, but hard code CRTC video output mode to RGBaaa.
>
> Changes in v4:
> - Update "analogix,hpd-gpios" to "hpd-gpios" DT propery. (Rob)
> - Rename "analogix_dp-exynos.c" file name to "exynos_dp.c" (Jingoo)
> - Create a separate folder for analogix code in bridge/ (Archit)
> - Update commit message more readable. (Jingoo)
> - Adjust the order from 05 to 04
> - Provide backword compatibility with samsung. (Krzysztof)
> - Split all DTS changes, and provide backward compatibility. Mark old
> properties as deprecated but still support them. (Krzysztof)
> - Update "analogix,hpd-gpio" to "hpd-gpios" prop name. (Rob)
> - Deprecated some properties which could parsed from Edid/Mode/DPCD.
> (Thierry) "analogix,color-space" & "analogix,color-depth" &
> "analogix,link-rate" & "analogix,lane-count" &
> "analogix,ycbcr-coeff" & "analogix,dynamic-range" &
> "vsync-active-high" & "hsync-active-high" & "interlaces"
> - Separate all DTS changes to a separate patch. (Krzysztof)
> - Remove some deprecated DT properties in rockchip dp document.
> - Add commit message, and remove the redundant rockchip_dp_phy_init()
> function, move those code to probe() method. And remove driver .owner
> number. (Kishon)
> - Seprate the link-rate and lane-count limit out with the device_type
> flag. (Thierry)
> - Take Jingoo suggest, add commit messages.
> - Call drm_panel_prepare() in .get_modes function, ensure panel should
> power on before driver try to read edid message.
>
> Changes in v3:
> - Move exynos's video_timing code to analogix_dp-exynos platform driver,
> add get_modes method to struct analogix_dp_plat_data. (Thierry)
> - Rename some "samsung*" dts propery to "analogix*". (Heiko)
> - The 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". (Thierry)
> - Dynamic parse video timing info from struct drm_display_mode and
> struct drm_display_info. (Thierry)
> - Add devicetree binding documents. (Heiko)
> - Remove sync pol & colorimetry properies from the new analogix dp driver
> devicetree binding. (Thierry)
> - Update the exist exynos dtsi file with the latest DP DT properies.
> - 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". (Thierry & Heiko)
> - Add devicetree binding document. (Heiko)
> - Remove "rockchip,panel" DT property, take use of remote point to get panel
> node. (Heiko)
> - Add the new function point dp_platdata->get_modes() init.
> - Suggest, add rockchip dp phy driver, collect the phy clocks and
> power control. (Heiko)
> - 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:
> - Remove new copyright (Jingoo)
> - Fix compiled failed due to analogix_dp_device misspell
> - Improved commit message more readable, and avoid using some
> uncommon style like bellow: (Joe Preches)
> - retval = exynos_dp_read_bytes_from_i2c(...
> ...);
> + retval =
> + exynos_dp_read_bytes_from_i2c(......);
> - Get panel node with remote-endpoint method, and create devicetree binding
> for driver. (Heiko)
> - Remove the clock enable/disbale with "sclk_edp" & "sclk_edp_24m",
> leave those clock to rockchip dp phy driver.
> - Fix compile failed dut to phy_pd_addr variable misspell error
>
> Mark Yao (1):
> drm: rockchip: vop: add bpc and color mode setting
>
> Yakir Yang (18):
> drm: bridge: analogix/dp: split exynos dp driver to bridge directory
> drm: bridge: analogix/dp: fix some obvious code style
> drm: bridge: analogix/dp: remove duplicate configuration of link rate
> and link count
> drm: bridge: analogix/dp: dynamic parse sync_pol & interlace &
> dynamic_range
> dt-bindings: add document for analogix display port driver
> ARM: dts: exynos/dp: remove some properties that deprecated by
> analogix_dp driver
> drm: rockchip: dp: add rockchip platform dp driver
> dt-bindings: add document for rockchip variant of analogix_dp
> phy: Add driver for rockchip Display Port PHY
> dt-bindings: add document for rockchip dp phy
> drm: bridge: analogix/dp: add some rk3288 special registers setting
> drm: bridge: analogix/dp: add max link rate and lane count limit for
> RK3288
> drm: bridge: analogix/dp: try force hpd after plug in lookup failed
> drm: bridge: analogix/dp: move hpd detect to connector detect function
> drm: bridge: analogix/dp: add edid modes parse in get_modes method
> drm: bridge: analogix/dp: expand the look time for waiting AUX CH
> reply
> drm: bridge: analogix/dp: add panel prepare/unprepare in
> suspend/resume time
> drm: bridge: analogix/dp: Fix the possible dead lock in bridge disable
> time
>
> .../bindings/display/bridge/analogix_dp.txt | 52 +
> .../bindings/display/exynos/exynos_dp.txt | 66 +-
> .../display/rockchip/analogix_dp-rockchip.txt | 92 ++
> .../devicetree/bindings/phy/rockchip-dp-phy.txt | 22 +
> arch/arm/boot/dts/exynos5250-arndale.dts | 2 -
> arch/arm/boot/dts/exynos5250-smdk5250.dts | 2 -
> arch/arm/boot/dts/exynos5250-snow-common.dtsi | 4 +-
> arch/arm/boot/dts/exynos5250-spring.dts | 4 +-
> arch/arm/boot/dts/exynos5420-peach-pit.dts | 4 +-
> arch/arm/boot/dts/exynos5420-smdk5420.dts | 2 -
> arch/arm/boot/dts/exynos5800-peach-pi.dts | 4 +-
> drivers/gpu/drm/bridge/Kconfig | 2 +
> drivers/gpu/drm/bridge/Makefile | 1 +
> drivers/gpu/drm/bridge/analogix/Kconfig | 3 +
> drivers/gpu/drm/bridge/analogix/Makefile | 1 +
> drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 1387
> ++++++++++++++++++ drivers/gpu/drm/bridge/analogix/analogix_dp_core.h |
> 287 ++++
> drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 1320 +++++++++++++++++
> .../analogix/analogix_dp_reg.h} | 270 ++--
> drivers/gpu/drm/exynos/Kconfig | 3 +-
> drivers/gpu/drm/exynos/Makefile | 2 +-
> drivers/gpu/drm/exynos/exynos_dp.c | 384 +++++
> drivers/gpu/drm/exynos/exynos_dp_core.c | 1515
> -------------------- 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 | 457 ++++++
> drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 2 +-
> drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 2 +-
> drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 32 +-
> drivers/phy/Kconfig | 7 +
> drivers/phy/Makefile | 1 +
> drivers/phy/phy-rockchip-dp.c | 151 ++
> include/drm/bridge/analogix_dp.h | 42 +
> 35 files changed, 4421 insertions(+), 3257 deletions(-)
> create mode 100644
> Documentation/devicetree/bindings/display/bridge/analogix_dp.txt create
> mode 100644
> Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
> create mode 100644
> Documentation/devicetree/bindings/phy/rockchip-dp-phy.txt create mode
> 100644 drivers/gpu/drm/bridge/analogix/Kconfig
> create mode 100644 drivers/gpu/drm/bridge/analogix/Makefile
> create mode 100644 drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> create mode 100644 drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
> create mode 100644 drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> rename drivers/gpu/drm/{exynos/exynos_dp_reg.h =>
> bridge/analogix/analogix_dp_reg.h} (62%) create mode 100644
> drivers/gpu/drm/exynos/exynos_dp.c
> delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_core.c
> delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_core.h
> delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_reg.c
> create mode 100644 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> create mode 100644 drivers/phy/phy-rockchip-dp.c
> create mode 100644 include/drm/bridge/analogix_dp.h
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