Re: [PATCH 1/3] dt-bindings: pinctrl: Add bindings for Actions S500 SoC

[Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>]

On 26 June 2020 1:46:18 AM IST, Cristian Ciocaltea <cristian.ciocaltea@gmail.com> wrote:
>Add pinctrl and gpio bindings for Actions Semi S500 SoC.
>
>Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
>---
> .../pinctrl/actions,s500-pinctrl.yaml         | 228 ++++++++++++++++++
> 1 file changed, 228 insertions(+)
>create mode 100644
>Documentation/devicetree/bindings/pinctrl/actions,s500-pinctrl.yaml
>
>diff --git
>a/Documentation/devicetree/bindings/pinctrl/actions,s500-pinctrl.yaml
>b/Documentation/devicetree/bindings/pinctrl/actions,s500-pinctrl.yaml
>new file mode 100644
>index 000000000000..856947c70844
>--- /dev/null
>+++
>b/Documentation/devicetree/bindings/pinctrl/actions,s500-pinctrl.yaml
>@@ -0,0 +1,228 @@
>+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>+%YAML 1.2
>+---
>+$id: http://devicetree.org/schemas/pinctrl/actions,s500-pinctrl.yaml#
>+$schema: http://devicetree.org/meta-schemas/core.yaml#
>+
>+title: Actions Semi S500 SoC pinmux & GPIO controller
>+
>+maintainers:
>+  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

Feel free to add yourself as co-maintainer since you are the one contributing S500 support. 

>+
>+description: |
>+  Pinmux & GPIO controller manages pin multiplexing & configuration
>including
>+  GPIO function selection & GPIO attributes configuration. Please
>refer to
>+  pinctrl-bindings.txt in this directory for common binding part and
>usage.
>+
>+properties:
>+  compatible:
>+    const: actions,s500-pinctrl
>+
>+  reg:
>+    minItems: 1
>+    maxItems: 4

4?

Thanks, 
Mani

>+
>+  clocks:
>+    maxItems: 1
>+
>+  gpio-controller: true
>+
>+  gpio-ranges:
>+    maxItems: 1
>+
>+  '#gpio-cells':
>+    description:
>+      Specifies the pin number and flags, as defined in
>+      include/dt-bindings/gpio/gpio.h
>+    const: 2
>+
>+  interrupt-controller: true
>+
>+  '#interrupt-cells':
>+    description:
>+      Specifies the pin number and flags, as defined in
>+      include/dt-bindings/interrupt-controller/irq.h
>+    const: 2
>+
>+  interrupts:
>+    description:
>+      One interrupt per each of the 5 GPIO ports supported by the
>controller,
>+      sorted by port number ascending order.
>+    minItems: 5
>+    maxItems: 5
>+
>+patternProperties:
>+  '^.*$':
>+    if:
>+      type: object
>+    then:
>+      patternProperties:
>+        'pinmux$':
>+          type: object
>+          description:
>+            Pinctrl node's client devices specify pin muxes using
>subnodes,
>+            which in turn use the standard properties below.
>+          $ref: pinmux-node.yaml#
>+
>+          properties:
>+            groups:
>+              description:
>+                List of gpio pin groups affected by the functions
>specified in
>+                this subnode.
>+              items:
>+                oneOf:
>+                  - enum: [lcd0_d18_mfp, rmii_crs_dv_mfp,
>rmii_txd0_mfp,
>+                      rmii_txd1_mfp, rmii_txen_mfp, rmii_rxen_mfp,
>+                      rmii_rxd1_mfp, rmii_rxd0_mfp, rmii_ref_clk_mfp,
>+                      i2s_d0_mfp, i2s_pcm1_mfp, i2s0_pcm0_mfp,
>i2s1_pcm0_mfp,
>+                      i2s_d1_mfp, ks_in2_mfp, ks_in1_mfp, ks_in0_mfp,
>+                      ks_in3_mfp, ks_out0_mfp, ks_out1_mfp,
>ks_out2_mfp,
>+                      lvds_o_pn_mfp, dsi_dn0_mfp, dsi_dp2_mfp,
>lcd0_d17_mfp,
>+                      dsi_dp3_mfp, dsi_dn3_mfp, dsi_dp0_mfp,
>lvds_ee_pn_mfp,
>+                      spi0_i2c_pcm_mfp, spi0_i2s_pcm_mfp,
>dsi_dnp1_cp_mfp,
>+                      lvds_e_pn_mfp, dsi_dn2_mfp, uart2_rtsb_mfp,
>+                      uart2_ctsb_mfp, uart3_rtsb_mfp, uart3_ctsb_mfp,
>+                      sd0_d0_mfp, sd0_d1_mfp, sd0_d2_d3_mfp,
>sd1_d0_d3_mfp,
>+                      sd0_cmd_mfp, sd0_clk_mfp, sd1_cmd_mfp,
>uart0_rx_mfp,
>+                      clko_25m_mfp, csi_cn_cp_mfp, sens0_ckout_mfp,
>+                      uart0_tx_mfp, i2c0_mfp, csi_dn_dp_mfp,
>sen0_pclk_mfp,
>+                      pcm1_in_mfp, pcm1_clk_mfp, pcm1_sync_mfp,
>pcm1_out_mfp,
>+                      dnand_data_wr_mfp, dnand_acle_ce0_mfp,
>nand_ceb2_mfp,
>+                      nand_ceb3_mfp]
>+              minItems: 1
>+              maxItems: 32
>+
>+            function:
>+              description:
>+                Specify the alternative function to be configured for
>the
>+                given gpio pin groups.
>+              enum: [nor, eth_rmii, eth_smii, spi0, spi1, spi2, spi3,
>sens0,
>+                sens1, uart0, uart1, uart2, uart3, uart4, uart5,
>uart6, i2s0,
>+                i2s1, pcm1, pcm0, ks, jtag, pwm0, pwm1, pwm2, pwm3,
>pwm4, pwm5,
>+                p0, sd0, sd1, sd2, i2c0, i2c1, i2c3, dsi, lvds, usb30,
>clko_25m,
>+                mipi_csi, nand, spdif, ts, lcd0]
>+
>+          required:
>+            - groups
>+            - function
>+
>+          additionalProperties: false
>+
>+        'pinconf$':
>+          type: object
>+          description:
>+            Pinctrl node's client devices specify pin configurations
>using
>+            subnodes, which in turn use the standard properties below.
>+          $ref: pincfg-node.yaml#
>+
>+          properties:
>+            groups:
>+              description:
>+                List of gpio pin groups affected by the drive-strength
>property
>+                specified in this subnode.
>+              items:
>+                oneOf:
>+                  - enum: [sirq_drv, rmii_txd01_txen_drv,
>rmii_rxer_drv,
>+                      rmii_crs_drv, rmii_rxd10_drv, rmii_ref_clk_drv,
>+                      smi_mdc_mdio_drv, i2s_d0_drv, i2s_bclk0_drv,
>i2s3_drv,
>+                      i2s13_drv, pcm1_drv, ks_in_drv, ks_out_drv,
>lvds_all_drv,
>+                      lcd_dsi_drv, dsi_drv, sd0_d0_d3_drv,
>sd1_d0_d3_drv,
>+                      sd0_cmd_drv, sd0_clk_drv, sd1_cmd_drv,
>sd1_clk_drv,
>+                      spi0_all_drv, uart0_rx_drv, uart0_tx_drv,
>uart2_all_drv,
>+                      i2c0_all_drv, i2c12_all_drv, sens0_pclk_drv,
>+                      sens0_ckout_drv, uart3_all_drv]
>+              minItems: 1
>+              maxItems: 32
>+
>+            pins:
>+              description:
>+                List of gpio pins affected by the bias-pull-* and
>+                input-schmitt-* properties specified in this subnode.
>+              items:
>+                oneOf:
>+                  - enum: [dnand_dqs, dnand_dqsn, eth_txd0, eth_txd1,
>eth_txen,
>+                      eth_rxer, eth_crs_dv, eth_rxd1, eth_rxd0,
>eth_ref_clk,
>+                      eth_mdc, eth_mdio, sirq0, sirq1, sirq2, i2s_d0,
>i2s_bclk0,
>+                      i2s_lrclk0, i2s_mclk0, i2s_d1, i2s_bclk1,
>i2s_lrclk1,
>+                      i2s_mclk1, ks_in0, ks_in1, ks_in2, ks_in3,
>ks_out0,
>+                      ks_out1, ks_out2, lvds_oep, lvds_oen, lvds_odp,
>lvds_odn,
>+                      lvds_ocp, lvds_ocn, lvds_obp, lvds_obn,
>lvds_oap,
>+                      lvds_oan, lvds_eep, lvds_een, lvds_edp,
>lvds_edn,
>+                      lvds_ecp, lvds_ecn, lvds_ebp, lvds_ebn,
>lvds_eap,
>+                      lvds_ean, lcd0_d18, lcd0_d17, dsi_dp3, dsi_dn3,
>dsi_dp1,
>+                      dsi_dn1, dsi_cp, dsi_cn, dsi_dp0, dsi_dn0,
>dsi_dp2,
>+                      dsi_dn2, sd0_d0, sd0_d1, sd0_d2, sd0_d3, sd1_d0,
>sd1_d1,
>+                      sd1_d2, sd1_d3, sd0_cmd, sd0_clk, sd1_cmd,
>sd1_clk,
>+                      spi0_sclk, spi0_ss, spi0_miso, spi0_mosi,
>uart0_rx,
>+                      uart0_tx, i2c0_sclk, i2c0_sdata, sensor0_pclk,
>+                      sensor0_ckout, dnand_ale, dnand_cle, dnand_ceb0,
>+                      dnand_ceb1, dnand_ceb2, dnand_ceb3, uart2_rx,
>uart2_tx,
>+                      uart2_rtsb, uart2_ctsb, uart3_rx, uart3_tx,
>uart3_rtsb,
>+                      uart3_ctsb, pcm1_in, pcm1_clk, pcm1_sync,
>pcm1_out,
>+                      i2c1_sclk, i2c1_sdata, i2c2_sclk, i2c2_sdata,
>csi_dn0,
>+                      csi_dp0, csi_dn1, csi_dp1, csi_dn2, csi_dp2,
>csi_dn3,
>+                      csi_dp3, csi_cn, csi_cp, dnand_d0, dnand_d1,
>dnand_d2,
>+                      dnand_d3, dnand_d4, dnand_d5, dnand_d6,
>dnand_d7,
>+                      dnand_rb, dnand_rdb, dnand_rdbn, dnand_wrb,
>porb,
>+                      clko_25m, bsel, pkg0, pkg1, pkg2, pkg3]
>+              minItems: 1
>+              maxItems: 64
>+
>+            bias-pull-up: true
>+            bias-pull-down: true
>+
>+            drive-strength:
>+              description:
>+                Selects the drive strength for the specified pins, in
>mA.
>+              enum: [2, 4, 8, 12]
>+
>+            input-schmitt-enable: true
>+            input-schmitt-disable: true
>+
>+          additionalProperties: false
>+
>+required:
>+  - compatible
>+  - reg
>+  - clocks
>+  - gpio-controller
>+  - gpio-ranges
>+  - '#gpio-cells'
>+  - interrupt-controller
>+  - '#interrupt-cells'
>+  - interrupts
>+
>+additionalProperties: false
>+
>+examples:
>+  - |
>+    #include <dt-bindings/interrupt-controller/arm-gic.h>
>+    pinctrl: pinctrl@b01b0000 {
>+        compatible = "actions,s500-pinctrl";
>+        reg = <0xe01b0000 0x1000>;
>+        clocks = <&cmu 20>;
>+        gpio-controller;
>+        gpio-ranges = <&pinctrl 0 0 132>;
>+        #gpio-cells = <2>;
>+        interrupt-controller;
>+        #interrupt-cells = <2>;
>+        interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>,
>+                     <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>,
>+                     <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>,
>+                     <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
>+                     <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
>+
>+        i2c0_default: i2c0_default {
>+            pinmux {
>+                groups = "i2c0_mfp";
>+                function = "i2c0";
>+            };
>+
>+            pinconf {
>+                pins = "i2c0_sclk", "i2c0_sdata";
>+                bias-pull-up;
>+            };
>+        };
>+    };
>+
>+...

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