Re: [PATCH 2/2] dt-bindings: xilinx: Deprecate header with firmware constants

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On Mon, 3 Feb 2025 17:39:11 +0100
Michal Simek <michal.simek@xxxxxxx> wrote:

> Firmware contants do not fit the purpose of bindings because they are not
> independent IDs for abstractions. They are more or less just contants which
> better to wire via header with DT which is using it.
> That's why add deprecated message to dt binding header and also update
> existing dt bindings not to use macros from the header  and replace them by
> it's value. Actually value is not relevant because it is only example.
> 
> The similar changes have been done by commit 9d9292576810 ("dt-bindings:
> pinctrl: samsung: deprecate header with register constants").
> 
> Signed-off-by: Michal Simek <michal.simek@xxxxxxx>
For IIO
Acked-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> ---
> 
>  Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml  | 4 +---
>  .../bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml           | 3 +--
>  .../devicetree/bindings/iio/adc/xlnx,zynqmp-ams.yaml       | 3 +--
>  Documentation/devicetree/bindings/net/cdns,macb.yaml       | 7 +++----
>  Documentation/devicetree/bindings/spi/spi-zynqmp-qspi.yaml | 3 +--
>  Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml     | 3 +--
>  include/dt-bindings/clock/xlnx-zynqmp-clk.h                | 7 +++++++
>  7 files changed, 15 insertions(+), 15 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml b/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
> index 9952e0ef7767..6ad78429dc74 100644
> --- a/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
> +++ b/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
> @@ -163,11 +163,9 @@ additionalProperties: false
>  
>  examples:
>    - |
> -    #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
>      #include <dt-bindings/interrupt-controller/irq.h>
>      #include <dt-bindings/power/xlnx-zynqmp-power.h>
>      #include <dt-bindings/reset/xlnx-zynqmp-resets.h>
> -    #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
>      #include <dt-bindings/phy/phy.h>
>  
>      sata: ahci@fd0c0000 {
> @@ -175,7 +173,7 @@ examples:
>          reg = <0xfd0c0000 0x200>;
>          interrupt-parent = <&gic>;
>          interrupts = <0 133 IRQ_TYPE_LEVEL_HIGH>;
> -        clocks = <&zynqmp_clk SATA_REF>;
> +        clocks = <&zynqmp_clk 22>;
>          ceva,p0-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
>          ceva,p0-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
>          ceva,p0-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
> diff --git a/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml
> index ac3198953b8e..b5399c65a731 100644
> --- a/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml
> +++ b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml
> @@ -75,7 +75,6 @@ additionalProperties: false
>  
>  examples:
>    - |
> -    #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
>  
>      fpd_dma_chan1: dma-controller@fd500000 {
>        compatible = "xlnx,zynqmp-dma-1.0";
> @@ -84,7 +83,7 @@ examples:
>        interrupts = <0 117 0x4>;
>        #dma-cells = <1>;
>        clock-names = "clk_main", "clk_apb";
> -      clocks = <&zynqmp_clk GDMA_REF>, <&zynqmp_clk LPD_LSBUS>;
> +      clocks = <&zynqmp_clk 19>, <&zynqmp_clk 31>;
>        xlnx,bus-width = <128>;
>        dma-coherent;
>      };
> diff --git a/Documentation/devicetree/bindings/iio/adc/xlnx,zynqmp-ams.yaml b/Documentation/devicetree/bindings/iio/adc/xlnx,zynqmp-ams.yaml
> index 8cbad7e792b6..a403392fb263 100644
> --- a/Documentation/devicetree/bindings/iio/adc/xlnx,zynqmp-ams.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/xlnx,zynqmp-ams.yaml
> @@ -193,7 +193,6 @@ additionalProperties: false
>  
>  examples:
>    - |
> -    #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
>  
>      bus {
>          #address-cells = <2>;
> @@ -204,7 +203,7 @@ examples:
>              interrupt-parent = <&gic>;
>              interrupts = <0 56 4>;
>              reg = <0x0 0xffa50000 0x0 0x800>;
> -            clocks = <&zynqmp_clk AMS_REF>;
> +            clocks = <&zynqmp_clk 70>;
>              #address-cells = <1>;
>              #size-cells = <1>;
>              #io-channel-cells = <1>;
> diff --git a/Documentation/devicetree/bindings/net/cdns,macb.yaml b/Documentation/devicetree/bindings/net/cdns,macb.yaml
> index 3c30dd23cd4e..8d69846b2e09 100644
> --- a/Documentation/devicetree/bindings/net/cdns,macb.yaml
> +++ b/Documentation/devicetree/bindings/net/cdns,macb.yaml
> @@ -197,7 +197,6 @@ examples:
>      };
>  
>    - |
> -    #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
>      #include <dt-bindings/power/xlnx-zynqmp-power.h>
>      #include <dt-bindings/reset/xlnx-zynqmp-resets.h>
>      #include <dt-bindings/phy/phy.h>
> @@ -210,9 +209,9 @@ examples:
>                      interrupt-parent = <&gic>;
>                      interrupts = <0 59 4>, <0 59 4>;
>                      reg = <0x0 0xff0c0000 0x0 0x1000>;
> -                    clocks = <&zynqmp_clk LPD_LSBUS>, <&zynqmp_clk GEM1_REF>,
> -                             <&zynqmp_clk GEM1_TX>, <&zynqmp_clk GEM1_RX>,
> -                             <&zynqmp_clk GEM_TSU>;
> +                    clocks = <&zynqmp_clk 31>, <&zynqmp_clk 105>,
> +                             <&zynqmp_clk 51>, <&zynqmp_clk 50>,
> +                             <&zynqmp_clk 44>;
>                      clock-names = "pclk", "hclk", "tx_clk", "rx_clk", "tsu_clk";
>                      #address-cells = <1>;
>                      #size-cells = <0>;
> diff --git a/Documentation/devicetree/bindings/spi/spi-zynqmp-qspi.yaml b/Documentation/devicetree/bindings/spi/spi-zynqmp-qspi.yaml
> index 04d4d3b4916d..02cf1314367b 100644
> --- a/Documentation/devicetree/bindings/spi/spi-zynqmp-qspi.yaml
> +++ b/Documentation/devicetree/bindings/spi/spi-zynqmp-qspi.yaml
> @@ -65,14 +65,13 @@ allOf:
>  
>  examples:
>    - |
> -    #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
>      soc {
>        #address-cells = <2>;
>        #size-cells = <2>;
>  
>        qspi: spi@ff0f0000 {
>          compatible = "xlnx,zynqmp-qspi-1.0";
> -        clocks = <&zynqmp_clk QSPI_REF>, <&zynqmp_clk LPD_LSBUS>;
> +        clocks = <&zynqmp_clk 53>, <&zynqmp_clk 82>;
>          clock-names = "ref_clk", "pclk";
>          interrupts = <0 15 4>;
>          interrupt-parent = <&gic>;
> diff --git a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
> index 00f87a558c7d..b5843f4d17d8 100644
> --- a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
> +++ b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
> @@ -101,7 +101,6 @@ examples:
>      #include <dt-bindings/dma/xlnx-zynqmp-dpdma.h>
>      #include <dt-bindings/power/xlnx-zynqmp-power.h>
>      #include <dt-bindings/reset/xlnx-zynqmp-resets.h>
> -    #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
>      #include <dt-bindings/reset/xlnx-zynqmp-resets.h>
>      #include <dt-bindings/phy/phy.h>
>      axi {
> @@ -113,7 +112,7 @@ examples:
>              #size-cells = <0x2>;
>              compatible = "xlnx,zynqmp-dwc3";
>              reg = <0x0 0xff9d0000 0x0 0x100>;
> -            clocks = <&zynqmp_clk USB0_BUS_REF>, <&zynqmp_clk USB3_DUAL_REF>;
> +            clocks = <&zynqmp_clk 32>, <&zynqmp_clk 34>;
>              clock-names = "bus_clk", "ref_clk";
>              power-domains = <&zynqmp_firmware PD_USB_0>;
>              resets = <&zynqmp_reset ZYNQMP_RESET_USB1_CORERESET>,
> diff --git a/include/dt-bindings/clock/xlnx-zynqmp-clk.h b/include/dt-bindings/clock/xlnx-zynqmp-clk.h
> index cdc4c0b9a374..f0f7ddd3dcbd 100644
> --- a/include/dt-bindings/clock/xlnx-zynqmp-clk.h
> +++ b/include/dt-bindings/clock/xlnx-zynqmp-clk.h
> @@ -9,6 +9,13 @@
>  #ifndef _DT_BINDINGS_CLK_ZYNQMP_H
>  #define _DT_BINDINGS_CLK_ZYNQMP_H
>  
> +/*
> + * These bindings are deprecated, because they do not match the actual
> + * concept of bindings but rather contain pure firmware values.
> + * Instead include the header in the DTS source directory.
> + */
> +#warning "These bindings are deprecated. Instead use the header in the DTS source directory."
> +
>  #define IOPLL			0
>  #define RPLL			1
>  #define APLL			2





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