Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754349Ab3JDAaw (ORCPT ); Thu, 3 Oct 2013 20:30:52 -0400 Received: from mms3.broadcom.com ([216.31.210.19]:1653 "EHLO mms3.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752920Ab3JDAap (ORCPT ); Thu, 3 Oct 2013 20:30:45 -0400 X-Server-Uuid: B86B6450-0931-4310-942E-F00ED04CA7AF From: "Sherman Yin" To: "Rob Herring" , "Pawel Moll" , "Mark Rutland" , "Stephen Warren" , "Ian Campbell" , "Rob Landley" , "Christian Daudt" , "Russell King" , "Linus Walleij" , "Grant Likely" , "Matt Porter" cc: devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, "Sherman Yin" Subject: [PATCH 2/4] pinctrl: Add pinctrl binding for Broadcom Capri SoCs Date: Thu, 3 Oct 2013 17:23:17 -0700 Message-ID: <1380846199-12829-3-git-send-email-syin@broadcom.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1380846199-12829-1-git-send-email-syin@broadcom.com> References: <1380846199-12829-1-git-send-email-syin@broadcom.com> MIME-Version: 1.0 X-WSS-ID: 7E50D3AD2L891410616-01-01 Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 11159 Lines: 444 Adds pinctrl driver devicetree binding for Broadcom Capri (BCM281xx) SoCs. Signed-off-by: Sherman Yin Reviewed-by: Christian Daudt Reviewed-by: Matt Porter --- .../bindings/pinctrl/brcm,capri-pinctrl.txt | 419 ++++++++++++++++++++ 1 file changed, 419 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/brcm,capri-pinctrl.txt diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,capri-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/brcm,capri-pinctrl.txt new file mode 100644 index 0000000..79e0e5a --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/brcm,capri-pinctrl.txt @@ -0,0 +1,419 @@ +Broadcom Capri Pin Controller + +This is a pin controller for the Broadcom BCM281xx SoC family, which includes +BCM11130, BCM11140, BCM11351, BCM28145, and BCM28155 SoCs. + +=== Pin Controller Node === + +Required Properties: + +- compatible: Must be "brcm,capri-pinctrl". +- reg: Base address of the PAD Controller register block and the size + of the block. + +For example, the following is the bare minimum node: + + pinctrl@35004800 { + compatible = "brcm,capri-pinctrl"; + reg = <0x35004800 0x430>; + }; + +As a Pin Controller Device, in addition to the required properties, this node +should also contain the pin configuration nodes that client devices reference, +if any. + +=== Pin Configuration Node === + +Each pin configuration node is a sub-node of the pin controller node and is a +container of an arbitrary number of subnodes, called group nodes. + +Please refer to the pinctrl-bindings.txt in this directory for details of the +common pinctrl bindings used by client devices, including the definition of a +"pin configuration node". + +=== Group Node === + +A group node specifies the desired pin mux and/or pin configuration for an +arbitrary number of pins. The group node only affect the properties specified +in the node, and has no effect on any properties that are omitted. + +The names of the group nodes are optional and not used. The group nodes have +the following properties: + +Required Properties: + +- brcm,pins: Multiple strings. Specifies the name(s) of one or more pins to + be configured by this node. + +Optional Properties: + +- brcm,function: Multiple strings. Specifies the pin mux selection. Values are: + "alt1", "alt2", "alt3", "alt4" +- brcm,hysteresis: Multiple integers, applicable to standard pins only. Turns + on hysteresis of input. + 0: TTL input, 1: Schmitt Trigger input +- brcm,pull: Multiple integers, applicable to standard pins only. Specifies + pull-up or pull-down. + 0: neither, 1: pull-up, 2: pull-down, 3: both +- brcm,input_dis: Multiple integers, applicable to all pins. Input disable + control. + 0: off, 1: input disabled +- brcm,slew: Multiple integers. Slew rate of output. + 0: fast output, 1: normal output (most pins) + 0: normal output, 1: fast output (IC_DM and IC_DP) + 0: Fast mode, 1: High speed mode (I2C) +- brcm,drive_str: Multiple integers. Drive strength. + 0: 2 mA + 1: 4 mA + 2: 6 mA + 3: 8 mA + 4: 10 mA + 5: 12 mA + 6: 14 mA + 7: 16 mA +- brcm,pull_up_str: Multiple integers. Pull Up strength. + 0: No pull-up + 1: 1.2 kOhm + 2: 1.8 kOhm + 3: 720 Ohm + 4: 2.7 kOhm + 5: 831 Ohm + 6: 1.08 kOhm + 7: 568 Ohm +- brcm,mode: Multiple integers. Mode select. + 0: Fast mode, 1: High Speed mode (I2C) + +Any optional property must have 1 or n values, where n is the number of pins +specified in the brcm,pins property: +- If 1 value is specified for a property, this value is applied to all pins + listed in the brcm,pins property. +- If n values are specified, the i th value is applied to the i th pin, where + i is the index in the array of values and pins, and (0 <= i < n). This + provides an easy way to set different values for different pins in the same + group. + +Example: + + // pin configuration node + dev_a_active { + //group node + grp_1 { + brcm,pins = "pin1", "pin2", "pin3"; + brcm,function = "alt1"; + brcm,drive_str = <2 4 6>; + brcm,slew = <1>; + }; + + grp_2 { + ... + }; + + ... + }; + +In the example above, "dev_a_active" is a pin configuration node and has a +number of sub-nodes. In the group node "grp_1", 3 pins are defined in the +"brcm,pins" property. Thus, any optional properties must have either 1 or 3 +values. The "brcm,function" property has only one value, "alt1", therefore the +pin mux selection for all 3 pins is "alt1". Similarly, "brcm,slew" has only one +value, <1>, so all 3 pins are configured with a slew rate setting of <1>. +"brcm,drive_str" has 3 values, and they are applied in the same order of the pins +listed in "brcm,pins": the drive strength of "pin1" is set to <2>, <4> for +"pin2", and <6> for "pin3". Finally, no other parameters are sepcified, +implying no changes to any other parameters for these pins. + +=== Pin Names and Type === + +There are 3 types of pins in the BCM281xx SoC family, each type can be +configured by different properties in a group node. The following is a list of +node properties applicable to different pin types. + +Standard pins: +- brcm,function +- brcm,hysteresis +- brcm,pull +- brcm,input_dis +- brcm,slew +- brcm,drive_str + +I2C pins: +- brcm,function +- brcm,input_dis +- brcm,slew +- brcm,pull_up_str + +HDMI pins: +- brcm,function +- brcm,input_dis +- brcm,mode + +The following are valid pin names and their pin types: + + "adcsync", std + "bat_rm", std + "bsc1_scl", i2c + "bsc1_sda", i2c + "bsc2_scl", i2c + "bsc2_sda", i2c + "classgpwr", std + "clk_cx8", std + "clkout_0", std + "clkout_1", std + "clkout_2", std + "clkout_3", std + "clkreq_in_0", std + "clkreq_in_1", std + "cws_sys_req1", std + "cws_sys_req2", std + "cws_sys_req3", std + "digmic1_clk", std + "digmic1_dq", std + "digmic2_clk", std + "digmic2_dq", std + "gpen13", std + "gpen14", std + "gpen15", std + "gpio00", std + "gpio01", std + "gpio02", std + "gpio03", std + "gpio04", std + "gpio05", std + "gpio06", std + "gpio07", std + "gpio08", std + "gpio09", std + "gpio10", std + "gpio11", std + "gpio12", std + "gpio13", std + "gpio14", std + "gps_pablank", std + "gps_tmark", std + "hdmi_scl", hdmi + "hdmi_sda", hdmi + "ic_dm", std + "ic_dp", std + "kp_col_ip_0", std + "kp_col_ip_1", std + "kp_col_ip_2", std + "kp_col_ip_3", std + "kp_row_op_0", std + "kp_row_op_1", std + "kp_row_op_2", std + "kp_row_op_3", std + "lcd_b_0", std + "lcd_b_1", std + "lcd_b_2", std + "lcd_b_3", std + "lcd_b_4", std + "lcd_b_5", std + "lcd_b_6", std + "lcd_b_7", std + "lcd_g_0", std + "lcd_g_1", std + "lcd_g_2", std + "lcd_g_3", std + "lcd_g_4", std + "lcd_g_5", std + "lcd_g_6", std + "lcd_g_7", std + "lcd_hsync", std + "lcd_oe", std + "lcd_pclk", std + "lcd_r_0", std + "lcd_r_1", std + "lcd_r_2", std + "lcd_r_3", std + "lcd_r_4", std + "lcd_r_5", std + "lcd_r_6", std + "lcd_r_7", std + "lcd_vsync", std + "mdmgpio0", std + "mdmgpio1", std + "mdmgpio2", std + "mdmgpio3", std + "mdmgpio4", std + "mdmgpio5", std + "mdmgpio6", std + "mdmgpio7", std + "mdmgpio8", std + "mphi_data_0", std + "mphi_data_1", std + "mphi_data_2", std + "mphi_data_3", std + "mphi_data_4", std + "mphi_data_5", std + "mphi_data_6", std + "mphi_data_7", std + "mphi_data_8", std + "mphi_data_9", std + "mphi_data_10", std + "mphi_data_11", std + "mphi_data_12", std + "mphi_data_13", std + "mphi_data_14", std + "mphi_data_15", std + "mphi_ha0", std + "mphi_hat0", std + "mphi_hat1", std + "mphi_hce0_n", std + "mphi_hce1_n", std + "mphi_hrd_n", std + "mphi_hwr_n", std + "mphi_run0", std + "mphi_run1", std + "mtx_scan_clk", std + "mtx_scan_data", std + "nand_ad_0", std + "nand_ad_1", std + "nand_ad_2", std + "nand_ad_3", std + "nand_ad_4", std + "nand_ad_5", std + "nand_ad_6", std + "nand_ad_7", std + "nand_ale", std + "nand_cen_0", std + "nand_cen_1", std + "nand_cle", std + "nand_oen", std + "nand_rdy_0", std + "nand_rdy_1", std + "nand_wen", std + "nand_wp", std + "pc1", std + "pc2", std + "pmu_int", std + "pmu_scl", i2c + "pmu_sda", i2c + "rfst2g_mtsloten3g", std + "rgmii_0_rx_ctl", std + "rgmii_0_rxc", std + "rgmii_0_rxd_0", std + "rgmii_0_rxd_1", std + "rgmii_0_rxd_2", std + "rgmii_0_rxd_3", std + "rgmii_0_tx_ctl", std + "rgmii_0_txc", std + "rgmii_0_txd_0", std + "rgmii_0_txd_1", std + "rgmii_0_txd_2", std + "rgmii_0_txd_3", std + "rgmii_1_rx_ctl", std + "rgmii_1_rxc", std + "rgmii_1_rxd_0", std + "rgmii_1_rxd_1", std + "rgmii_1_rxd_2", std + "rgmii_1_rxd_3", std + "rgmii_1_tx_ctl", std + "rgmii_1_txc", std + "rgmii_1_txd_0", std + "rgmii_1_txd_1", std + "rgmii_1_txd_2", std + "rgmii_1_txd_3", std + "rgmii_gpio_0", std + "rgmii_gpio_1", std + "rgmii_gpio_2", std + "rgmii_gpio_3", std + "rtxdata2g_txdata3g1", std + "rtxen2g_txdata3g2", std + "rxdata3g0", std + "rxdata3g1", std + "rxdata3g2", std + "sdio1_clk", std + "sdio1_cmd", std + "sdio1_data_0", std + "sdio1_data_1", std + "sdio1_data_2", std + "sdio1_data_3", std + "sdio4_clk", std + "sdio4_cmd", std + "sdio4_data_0", std + "sdio4_data_1", std + "sdio4_data_2", std + "sdio4_data_3", std + "sim_clk", std + "sim_data", std + "sim_det", std + "sim_resetn", std + "sim2_clk", std + "sim2_data", std + "sim2_det", std + "sim2_resetn", std + "sri_c", std + "sri_d", std + "sri_e", std + "ssp_extclk", std + "ssp0_clk", std + "ssp0_fs", std + "ssp0_rxd", std + "ssp0_txd", std + "ssp2_clk", std + "ssp2_fs_0", std + "ssp2_fs_1", std + "ssp2_fs_2", std + "ssp2_fs_3", std + "ssp2_rxd_0", std + "ssp2_rxd_1", std + "ssp2_txd_0", std + "ssp2_txd_1", std + "ssp3_clk", std + "ssp3_fs", std + "ssp3_rxd", std + "ssp3_txd", std + "ssp4_clk", std + "ssp4_fs", std + "ssp4_rxd", std + "ssp4_txd", std + "ssp5_clk", std + "ssp5_fs", std + "ssp5_rxd", std + "ssp5_txd", std + "ssp6_clk", std + "ssp6_fs", std + "ssp6_rxd", std + "ssp6_txd", std + "stat_1", std + "stat_2", std + "sysclken", std + "traceclk", std + "tracedt00", std + "tracedt01", std + "tracedt02", std + "tracedt03", std + "tracedt04", std + "tracedt05", std + "tracedt06", std + "tracedt07", std + "tracedt08", std + "tracedt09", std + "tracedt10", std + "tracedt11", std + "tracedt12", std + "tracedt13", std + "tracedt14", std + "tracedt15", std + "txdata3g0", std + "txpwrind", std + "uartb1_ucts", std + "uartb1_urts", std + "uartb1_urxd", std + "uartb1_utxd", std + "uartb2_urxd", std + "uartb2_utxd", std + "uartb3_ucts", std + "uartb3_urts", std + "uartb3_urxd", std + "uartb3_utxd", std + "uartb4_ucts", std + "uartb4_urts", std + "uartb4_urxd", std + "uartb4_utxd", std + "vc_cam1_scl", i2c + "vc_cam1_sda", i2c + "vc_cam2_scl", i2c + "vc_cam2_sda", i2c + "vc_cam3_scl", i2c + "vc_cam3_sda", i2c -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/