Messages in this thread | | | From | Adrian Ratiu <> | Subject | Re: [Linux-stm32] [PATCH v4 0/4] Genericize DW MIPI DSI bridge and add i.MX 6 driver | Date | Tue, 10 Dec 2019 13:43:03 +0200 |
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On Fri, 06 Dec 2019, Philippe CORNU <philippe.cornu@st.com> wrote: > Hi Adrian, > > And sorry for this late reply. Your patches look good and we > ("stm guys") understand that v1.01 is very different to > v1.30/31. > > We are doing our best to review & test your patches and we will > go back to you asap. Many thanks, Philippe :-)
Hi Philippe,
Thank you for taking the time to test this, I really appreciate it.
Adrian
> > > On 12/2/19 8:33 PM, Adrian Ratiu wrote: >> Having a generic Synopsis DesignWare MIPI-DSI host controller bridge >> driver is a very good idea, however the current implementation has >> hardcoded quite a lot of the register layouts used by the two supported >> SoC vendors, STM and Rockchip, which use IP cores v1.30 and v1.31. >> >> This makes it hard to support other SoC vendors like the FSL/NXP i.MX 6 >> which use older v1.01 cores or future versions because, based on history, >> layout changes should also be expected in new DSI versions / SoCs. >> >> This patch series converts the bridge and platform drivers to access >> registers via generic regmap APIs and allows each platform driver to >> configure its register layout via struct reg_fields, then adds support >> for the host controller found on i.MX 6. >> >> I only have i.MX hardware with MIPI-DSI panel and relevant documentation >> available for testing so I'll really appreciate it if someone could test >> the series on Rockchip and STM... eyeballing register fields could only >> get me so far, so sorry in advance for any breakage! >> >> Many thanks to Boris Brezillon <boris.brezillon@collabora.com> for >> suggesting the regmap solution and to Liu Ying <Ying.Liu@freescale.com> >> for doing the initial i.MX platform driver implementation. >> >> This series applies on top of latest linux-next tree, next-20191202. >> >> v3 -> v4: >> * Added commmit message to dt-binding patch (Neil) >> * Converted the dt-binding to yaml dt-schema format (Neil) >> * Small DT node + driver fixes (Rob) >> * Renamed platform driver to reflect it's only for i.MX v6 (Fabio) >> * Added small panel example to the host controller DT binding >> >> v2 -> v3: >> * Added const declarations to dw-mipi-dsi.c structs (Emil) >> * Fixed Reviewed-by tags and cc'd some more relevant ML (Emil) >> >> v1 -> v2: >> * Moved register definitions & regmap initialization into bridge >> module. Platform drivers get the regmap via plat_data after calling >> the bridge probe (Emil). >> >> Adrian Ratiu (4): >> drm: bridge: dw_mipi_dsi: access registers via a regmap >> drm: bridge: dw_mipi_dsi: abstract register access using reg_fields >> drm: imx: Add i.MX 6 MIPI DSI host driver >> dt-bindings: display: add i.MX6 MIPI DSI host controller doc >> >> .../display/imx/fsl,mipi-dsi-imx6.yaml | 136 ++++ >> drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 699 +++++++++++++----- >> drivers/gpu/drm/imx/Kconfig | 7 + >> drivers/gpu/drm/imx/Makefile | 1 + >> drivers/gpu/drm/imx/dw_mipi_dsi-imx6.c | 378 ++++++++++ >> .../gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 17 +- >> drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 34 +- >> include/drm/bridge/dw_mipi_dsi.h | 2 +- >> 8 files changed, 1067 insertions(+), 207 deletions(-) >> create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,mipi-dsi-imx6.yaml >> create mode 100644 drivers/gpu/drm/imx/dw_mipi_dsi-imx6.c >>
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