Ping... Best Regards! Anson Huang > -----Original Message----- > From: Anson Huang [mailto:Anson.Huang@xxxxxxx] > Sent: 2019年3月18日 11:10 > To: robh+dt@xxxxxxxxxx; mark.rutland@xxxxxxx; shawnguo@xxxxxxxxxx; > s.hauer@xxxxxxxxxxxxxx; kernel@xxxxxxxxxxxxxx; festevam@xxxxxxxxx; > a.zummo@xxxxxxxxxxxx; alexandre.belloni@xxxxxxxxxxx; Aisheng Dong > <aisheng.dong@xxxxxxx>; ulf.hansson@xxxxxxxxxx; Daniel Baluta > <daniel.baluta@xxxxxxx>; devicetree@xxxxxxxxxxxxxxx; linux- > kernel@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux- > rtc@xxxxxxxxxxxxxxx > Cc: dl-linux-imx <linux-imx@xxxxxxx> > Subject: [PATCH V5 1/4] dt-bindings: fsl: scu: add general interrupt support > > Add scu general interrupt function support. > > Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx> > Reviewed-by: Rob Herring <robh@xxxxxxxxxx> > Reviewed-by: Dong Aisheng <aisheng.dong@xxxxxxx> > --- > Changes since V4: > - add mu aliase info and example in binding doc. > --- > .../devicetree/bindings/arm/freescale/fsl,scu.txt | 29 +++++++++++++++++-- > --- > 1 file changed, 23 insertions(+), 6 deletions(-) > > diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt > b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt > index 72d481c..5d7dbab 100644 > --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt > +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt > @@ -22,9 +22,11 @@ Required properties: > ------------------- > - compatible: should be "fsl,imx-scu". > - mbox-names: should include "tx0", "tx1", "tx2", "tx3", > - "rx0", "rx1", "rx2", "rx3". > -- mboxes: List of phandle of 4 MU channels for tx and 4 MU channels > - for rx. All 8 MU channels must be in the same MU instance. > + "rx0", "rx1", "rx2", "rx3"; > + include "gip3" if want to support general MU interrupt. > +- mboxes: List of phandle of 4 MU channels for tx, 4 MU channels for > + rx, and 1 optional MU channel for general interrupt. > + All MU channels must be in the same MU instance. > Cross instances are not allowed. The MU instance can only > be one of LSIO MU0~M4 for imx8qxp and imx8qm. Users > need > to make sure use the one which is not conflict with other @@ > -34,6 +36,7 @@ Required properties: > Channel 1 must be "tx1" or "rx1". > Channel 2 must be "tx2" or "rx2". > Channel 3 must be "tx3" or "rx3". > + General interrupt rx channel must be "gip3". > e.g. > mboxes = <&lsio_mu1 0 0 > &lsio_mu1 0 1 > @@ -42,10 +45,18 @@ Required properties: > &lsio_mu1 1 0 > &lsio_mu1 1 1 > &lsio_mu1 1 2 > - &lsio_mu1 1 3>; > + &lsio_mu1 1 3 > + &lsio_mu1 3 3>; > See Documentation/devicetree/bindings/mailbox/fsl,mu.txt > for detailed mailbox binding. > > +Note: Each mu which supports general interrupt should have an alias > +correctly numbered in "aliases" node. > +e.g. > +aliases { > + mu1 = &lsio_mu1; > +}; > + > i.MX SCU Client Device Node: > ============================================================ > > @@ -124,6 +135,10 @@ Required properties: > > Example (imx8qxp): > ------------- > +aliases { > + mu1 = &lsio_mu1; > +}; > + > lsio_mu1: mailbox@5d1c0000 { > ... > #mbox-cells = <2>; > @@ -133,7 +148,8 @@ firmware { > scu { > compatible = "fsl,imx-scu"; > mbox-names = "tx0", "tx1", "tx2", "tx3", > - "rx0", "rx1", "rx2", "rx3"; > + "rx0", "rx1", "rx2", "rx3", > + "gip3"; > mboxes = <&lsio_mu1 0 0 > &lsio_mu1 0 1 > &lsio_mu1 0 2 > @@ -141,7 +157,8 @@ firmware { > &lsio_mu1 1 0 > &lsio_mu1 1 1 > &lsio_mu1 1 2 > - &lsio_mu1 1 3>; > + &lsio_mu1 1 3 > + &lsio_mu1 3 3>; > > clk: clk { > compatible = "fsl,imx8qxp-clk", "fsl,scu-clk"; > -- > 2.7.4
