| Message ID | 20160826142742.7236-1-marex@denx.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Aug 26, 2016 at 04:27:41PM +0200, Marek Vasut wrote: > Add DT bindings for new MXSFB driver using the DRM framework. > The old MXSFB fbdev driver bindings are preserved in mxsfb.txt . They should be documented in the same place as they describe the same h/w. I've not looked how incompatible they are, but I'd expect that to be described here. > Signed-off-by: Marek Vasut <marex@denx.de> > Cc: devicetree@vger.kernel.org > Cc: Rob Herring <robh@kernel.org> > Cc: Lucas Stach <l.stach@pengutronix.de> > Cc: Fabio Estevam <fabio.estevam@nxp.com> > Cc: Shawn Guo <shawnguo@kernel.org> > --- > .../devicetree/bindings/display/mxsfb-drm.txt | 33 ++++++++++++++++++++++ DRM is a Linuxism. > 1 file changed, 33 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/mxsfb-drm.txt > > diff --git a/Documentation/devicetree/bindings/display/mxsfb-drm.txt b/Documentation/devicetree/bindings/display/mxsfb-drm.txt > new file mode 100644 > index 0000000..e70d337 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/mxsfb-drm.txt > @@ -0,0 +1,33 @@ > +* Freescale MXS LCD Interface (LCDIF) with KMS/DRM support KMS/DRM is a Linuxism. > + > +Required properties: > +- compatible: Should be "fsl,imx23-lcdif" for i.MX23. > + Should be "fsl,imx28-lcdif" for i.MX28 and i.MX6SX. MX6SX should have it's own compatible string. Knowing some of the development history, I would doubt they are exactly the same. Also, IIRC MX50 variants have LCDIF. > +- reg: Address and length of the register set for lcdif > +- interrupts: Should contain lcdif interrupts > +- clocks: A list of phandle + clock-specifier pairs, one for each > + entry in 'clock-names'. > +- clock-names: A list of clock names. For MXSFB it should contain: > + - "pix" for the MXSFB block clock > + - (optional) "axi", "disp_axi" for the bus interface clock on MX6SX Doesn't this mean required on MX6SX? > + > +Required sub-nodes: > + - port: The connection to an encoder chip. > + > +Example: > + > + lcdif1: lcdif@02220000 { Drop the leading 0. > + compatible = "fsl,imx6sx-lcdif", "fsl,imx28-lcdif"; > + reg = <0x02220000 0x4000>; > + interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>; > + clocks = <&clks IMX6SX_CLK_LCDIF1_PIX>, > + <&clks IMX6SX_CLK_LCDIF_APB>, > + <&clks IMX6SX_CLK_DISPLAY_AXI>; > + clock-names = "pix", "axi", "disp_axi"; > + > + port { > + parallel_out: endpoint { > + remote-endpoint = <&panel_in_parallel>; > + }; > + }; > + }; > -- > 2.9.3 >
On 09/02/2016 02:30 PM, Rob Herring wrote: > On Fri, Aug 26, 2016 at 04:27:41PM +0200, Marek Vasut wrote: >> Add DT bindings for new MXSFB driver using the DRM framework. >> The old MXSFB fbdev driver bindings are preserved in mxsfb.txt . Sorry for the late reply. > They should be documented in the same place as they describe the same > h/w. I've not looked how incompatible they are, but I'd expect that to > be described here. Done, makes sense. >> Signed-off-by: Marek Vasut <marex@denx.de> >> Cc: devicetree@vger.kernel.org >> Cc: Rob Herring <robh@kernel.org> >> Cc: Lucas Stach <l.stach@pengutronix.de> >> Cc: Fabio Estevam <fabio.estevam@nxp.com> >> Cc: Shawn Guo <shawnguo@kernel.org> >> --- >> .../devicetree/bindings/display/mxsfb-drm.txt | 33 ++++++++++++++++++++++ > > DRM is a Linuxism. > >> 1 file changed, 33 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/display/mxsfb-drm.txt >> >> diff --git a/Documentation/devicetree/bindings/display/mxsfb-drm.txt b/Documentation/devicetree/bindings/display/mxsfb-drm.txt >> new file mode 100644 >> index 0000000..e70d337 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/display/mxsfb-drm.txt >> @@ -0,0 +1,33 @@ >> +* Freescale MXS LCD Interface (LCDIF) with KMS/DRM support > > KMS/DRM is a Linuxism. So what do you put in the documentation instead, "driver using of graph" ? >> + >> +Required properties: >> +- compatible: Should be "fsl,imx23-lcdif" for i.MX23. >> + Should be "fsl,imx28-lcdif" for i.MX28 and i.MX6SX. > > MX6SX should have it's own compatible string. Knowing some of the > development history, I would doubt they are exactly the same. > > Also, IIRC MX50 variants have LCDIF. OK, done. >> +- reg: Address and length of the register set for lcdif >> +- interrupts: Should contain lcdif interrupts >> +- clocks: A list of phandle + clock-specifier pairs, one for each >> + entry in 'clock-names'. >> +- clock-names: A list of clock names. For MXSFB it should contain: >> + - "pix" for the MXSFB block clock >> + - (optional) "axi", "disp_axi" for the bus interface clock on MX6SX > > Doesn't this mean required on MX6SX? Yes, it does, fixed. >> + >> +Required sub-nodes: >> + - port: The connection to an encoder chip. >> + >> +Example: >> + >> + lcdif1: lcdif@02220000 { > > Drop the leading 0. OK >> + compatible = "fsl,imx6sx-lcdif", "fsl,imx28-lcdif"; >> + reg = <0x02220000 0x4000>; >> + interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>; >> + clocks = <&clks IMX6SX_CLK_LCDIF1_PIX>, >> + <&clks IMX6SX_CLK_LCDIF_APB>, >> + <&clks IMX6SX_CLK_DISPLAY_AXI>; >> + clock-names = "pix", "axi", "disp_axi"; >> + >> + port { >> + parallel_out: endpoint { >> + remote-endpoint = <&panel_in_parallel>; >> + }; >> + }; >> + }; >> -- >> 2.9.3 >>
diff --git a/Documentation/devicetree/bindings/display/mxsfb-drm.txt b/Documentation/devicetree/bindings/display/mxsfb-drm.txt new file mode 100644 index 0000000..e70d337 --- /dev/null +++ b/Documentation/devicetree/bindings/display/mxsfb-drm.txt @@ -0,0 +1,33 @@ +* Freescale MXS LCD Interface (LCDIF) with KMS/DRM support + +Required properties: +- compatible: Should be "fsl,imx23-lcdif" for i.MX23. + Should be "fsl,imx28-lcdif" for i.MX28 and i.MX6SX. +- reg: Address and length of the register set for lcdif +- interrupts: Should contain lcdif interrupts +- clocks: A list of phandle + clock-specifier pairs, one for each + entry in 'clock-names'. +- clock-names: A list of clock names. For MXSFB it should contain: + - "pix" for the MXSFB block clock + - (optional) "axi", "disp_axi" for the bus interface clock on MX6SX + +Required sub-nodes: + - port: The connection to an encoder chip. + +Example: + + lcdif1: lcdif@02220000 { + compatible = "fsl,imx6sx-lcdif", "fsl,imx28-lcdif"; + reg = <0x02220000 0x4000>; + interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks IMX6SX_CLK_LCDIF1_PIX>, + <&clks IMX6SX_CLK_LCDIF_APB>, + <&clks IMX6SX_CLK_DISPLAY_AXI>; + clock-names = "pix", "axi", "disp_axi"; + + port { + parallel_out: endpoint { + remote-endpoint = <&panel_in_parallel>; + }; + }; + };
Add DT bindings for new MXSFB driver using the DRM framework. The old MXSFB fbdev driver bindings are preserved in mxsfb.txt . Signed-off-by: Marek Vasut <marex@denx.de> Cc: devicetree@vger.kernel.org Cc: Rob Herring <robh@kernel.org> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Shawn Guo <shawnguo@kernel.org> --- .../devicetree/bindings/display/mxsfb-drm.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/mxsfb-drm.txt