[PATCH v3 0/14] Add Analogix Core Display Port Driver
architt at codeaurora.org
Wed Aug 19 21:29:49 PDT 2015
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
> 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. ;)
> - 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 &
> 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?
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
More information about the dri-devel