bcm4908: backport BCM4908 pinctrl driver
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit b014589167)
This commit is contained in:
Rafał Miłecki
parent
59e7ae8d65
commit
e6aaa061d0
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@ -98,6 +98,9 @@ CONFIG_GENERIC_MSI_IRQ=y
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CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
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CONFIG_GENERIC_PCI_IOMAP=y
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CONFIG_GENERIC_PHY=y
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CONFIG_GENERIC_PINCONF=y
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CONFIG_GENERIC_PINCTRL_GROUPS=y
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CONFIG_GENERIC_PINMUX_FUNCTIONS=y
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CONFIG_GENERIC_SCHED_CLOCK=y
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CONFIG_GENERIC_SMP_IDLE_THREAD=y
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CONFIG_GENERIC_STRNCPY_FROM_USER=y
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@ -177,6 +180,9 @@ CONFIG_PHYLIB=y
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CONFIG_PHYLINK=y
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CONFIG_PHYS_ADDR_T_64BIT=y
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CONFIG_PHY_BRCM_USB=y
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CONFIG_PINCTRL=y
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CONFIG_PINCTRL_BCM4908=y
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# CONFIG_PINCTRL_SINGLE is not set
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CONFIG_PM=y
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CONFIG_PM_CLK=y
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CONFIG_PM_GENERIC_DOMAINS=y
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@ -0,0 +1,111 @@
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From 7b5730f0ff24b0d7d1cb660a482384a807618a46 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Mon, 24 Jan 2022 11:22:42 +0100
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Subject: [PATCH] dt-bindings: pinctrl: Add binding for BCM4908 pinctrl
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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It's hardware block that is part of every SoC from BCM4908 family.
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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Reviewed-by: Rob Herring <robh@kernel.org>
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Link: https://lore.kernel.org/r/20220124102243.14912-1-zajec5@gmail.com
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Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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---
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.../pinctrl/brcm,bcm4908-pinctrl.yaml | 72 +++++++++++++++++++
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MAINTAINERS | 7 ++
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2 files changed, 79 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml
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@@ -0,0 +1,72 @@
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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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+%YAML 1.2
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+---
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+$id: http://devicetree.org/schemas/pinctrl/brcm,bcm4908-pinctrl.yaml#
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+$schema: http://devicetree.org/meta-schemas/core.yaml#
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+
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+title: Broadcom BCM4908 pin controller
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+
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+maintainers:
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+ - Rafał Miłecki <rafal@milecki.pl>
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+
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+description:
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+ Binding for pin controller present on BCM4908 family SoCs.
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+
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+properties:
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+ compatible:
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+ const: brcm,bcm4908-pinctrl
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+
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+ reg:
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+ maxItems: 1
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+
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+patternProperties:
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+ '-pins$':
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+ type: object
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+ $ref: pinmux-node.yaml#
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+
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+ properties:
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+ function:
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+ enum: [ led_0, led_1, led_2, led_3, led_4, led_5, led_6, led_7, led_8,
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+ led_9, led_10, led_11, led_12, led_13, led_14, led_15, led_16,
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+ led_17, led_18, led_19, led_20, led_21, led_22, led_23, led_24,
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+ led_25, led_26, led_27, led_28, led_29, led_30, led_31,
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+ hs_uart, i2c, i2s, nand_ctrl, nand_data, emmc_ctrl, usb0_pwr,
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+ usb1_pwr ]
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+
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+ groups:
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+ minItems: 1
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+ maxItems: 2
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+ items:
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+ enum: [ led_0_grp_a, led_1_grp_a, led_2_grp_a, led_3_grp_a,
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+ led_4_grp_a, led_5_grp_a, led_6_grp_a, led_7_grp_a,
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+ led_8_grp_a, led_9_grp_a, led_10_grp_a, led_10_grp_b,
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+ led_11_grp_a, led_11_grp_b, led_12_grp_a, led_12_grp_b,
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+ led_13_grp_a, led_13_grp_b, led_14_grp_a, led_15_grp_a,
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+ led_16_grp_a, led_17_grp_a, led_18_grp_a, led_19_grp_a,
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+ led_20_grp_a, led_21_grp_a, led_22_grp_a, led_23_grp_a,
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+ led_24_grp_a, led_25_grp_a, led_26_grp_a, led_27_grp_a,
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+ led_28_grp_a, led_29_grp_a, led_30_grp_a, led_31_grp_a,
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+ led_31_grp_b, hs_uart_grp, i2c_grp_a, i2c_grp_b, i2s_grp,
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+ nand_ctrl_grp, nand_data_grp, emmc_ctrl_grp, usb0_pwr_grp,
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+ usb1_pwr_grp ]
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+
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+allOf:
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+ - $ref: pinctrl.yaml#
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+
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+required:
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+ - compatible
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+ - reg
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+
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+unevaluatedProperties: false
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+
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+examples:
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+ - |
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+ pinctrl@ff800560 {
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+ compatible = "brcm,bcm4908-pinctrl";
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+ reg = <0xff800560 0x10>;
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+
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+ led_0-a-pins {
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+ function = "led_0";
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+ groups = "led_0_grp_a";
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+ };
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+ };
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--- a/MAINTAINERS
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+++ b/MAINTAINERS
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@@ -3216,6 +3216,13 @@ F: Documentation/devicetree/bindings/net
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F: drivers/net/ethernet/broadcom/bcm4908_enet.*
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F: drivers/net/ethernet/broadcom/unimac.h
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+BROADCOM BCM4908 PINMUX DRIVER
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+M: Rafał Miłecki <rafal@milecki.pl>
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+M: bcm-kernel-feedback-list@broadcom.com
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+L: linux-gpio@vger.kernel.org
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+S: Maintained
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+F: Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml
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+
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BROADCOM BCM5301X ARM ARCHITECTURE
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M: Hauke Mehrtens <hauke@hauke-m.de>
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M: Rafał Miłecki <zajec5@gmail.com>
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@ -0,0 +1,630 @@
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From f7e322d99f1180270fb4a3e1ae992b3116cfcf34 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Mon, 24 Jan 2022 11:22:43 +0100
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Subject: [PATCH] pinctrl: bcm: add driver for BCM4908 pinmux
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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BCM4908 has its own pins layout so it needs a custom binding and a Linux
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driver.
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
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Link: https://lore.kernel.org/r/20220124102243.14912-2-zajec5@gmail.com
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Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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---
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MAINTAINERS | 1 +
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drivers/pinctrl/bcm/Kconfig | 14 +
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drivers/pinctrl/bcm/Makefile | 1 +
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drivers/pinctrl/bcm/pinctrl-bcm4908.c | 563 ++++++++++++++++++++++++++
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4 files changed, 579 insertions(+)
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create mode 100644 drivers/pinctrl/bcm/pinctrl-bcm4908.c
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--- a/MAINTAINERS
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+++ b/MAINTAINERS
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@@ -3222,6 +3222,7 @@ M: bcm-kernel-feedback-list@broadcom.com
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L: linux-gpio@vger.kernel.org
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S: Maintained
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F: Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml
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+F: drivers/pinctrl/bcm/pinctrl-bcm4908.c
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BROADCOM BCM5301X ARM ARCHITECTURE
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M: Hauke Mehrtens <hauke@hauke-m.de>
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--- a/drivers/pinctrl/bcm/Kconfig
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+++ b/drivers/pinctrl/bcm/Kconfig
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@@ -29,6 +29,20 @@ config PINCTRL_BCM2835
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help
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Say Y here to enable the Broadcom BCM2835 GPIO driver.
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+config PINCTRL_BCM4908
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+ tristate "Broadcom BCM4908 pinmux driver"
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+ depends on OF && (ARCH_BCM4908 || COMPILE_TEST)
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+ select PINMUX
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+ select PINCONF
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+ select GENERIC_PINCONF
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+ select GENERIC_PINCTRL_GROUPS
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+ select GENERIC_PINMUX_FUNCTIONS
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+ default ARCH_BCM4908
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+ help
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+ Driver for BCM4908 family SoCs with integrated pin controller.
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+
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+ If compiled as module it will be called pinctrl-bcm4908.
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+
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config PINCTRL_IPROC_GPIO
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bool "Broadcom iProc GPIO (with PINCONF) driver"
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depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
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--- a/drivers/pinctrl/bcm/Makefile
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+++ b/drivers/pinctrl/bcm/Makefile
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@@ -3,6 +3,7 @@
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obj-$(CONFIG_PINCTRL_BCM281XX) += pinctrl-bcm281xx.o
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obj-$(CONFIG_PINCTRL_BCM2835) += pinctrl-bcm2835.o
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+obj-$(CONFIG_PINCTRL_BCM4908) += pinctrl-bcm4908.o
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obj-$(CONFIG_PINCTRL_IPROC_GPIO) += pinctrl-iproc-gpio.o
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obj-$(CONFIG_PINCTRL_CYGNUS_MUX) += pinctrl-cygnus-mux.o
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obj-$(CONFIG_PINCTRL_NS) += pinctrl-ns.o
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--- /dev/null
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+++ b/drivers/pinctrl/bcm/pinctrl-bcm4908.c
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@@ -0,0 +1,561 @@
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+// SPDX-License-Identifier: GPL-2.0
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+/* Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl> */
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+
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+#include <linux/err.h>
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+#include <linux/io.h>
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+#include <linux/mod_devicetable.h>
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+#include <linux/module.h>
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+#include <linux/pinctrl/pinconf-generic.h>
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+#include <linux/pinctrl/pinctrl.h>
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+#include <linux/pinctrl/pinmux.h>
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+#include <linux/platform_device.h>
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+#include <linux/slab.h>
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+#include <linux/string_helpers.h>
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+
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+#include "../core.h"
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+#include "../pinmux.h"
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+
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+#define BCM4908_NUM_PINS 86
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+
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+#define BCM4908_TEST_PORT_BLOCK_EN_LSB 0x00
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+#define BCM4908_TEST_PORT_BLOCK_DATA_MSB 0x04
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+#define BCM4908_TEST_PORT_BLOCK_DATA_LSB 0x08
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+#define BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT 12
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+#define BCM4908_TEST_PORT_COMMAND 0x0c
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+#define BCM4908_TEST_PORT_CMD_LOAD_MUX_REG 0x00000021
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+
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+struct bcm4908_pinctrl {
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+ struct device *dev;
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+ void __iomem *base;
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+ struct mutex mutex;
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+ struct pinctrl_dev *pctldev;
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+ struct pinctrl_desc pctldesc;
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+};
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+
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+/*
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+ * Groups
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+ */
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+
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+struct bcm4908_pinctrl_pin_setup {
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+ unsigned int number;
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+ unsigned int function;
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_0_pins_a[] = {
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+ { 0, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_1_pins_a[] = {
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+ { 1, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_2_pins_a[] = {
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+ { 2, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_3_pins_a[] = {
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+ { 3, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_4_pins_a[] = {
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+ { 4, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_5_pins_a[] = {
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+ { 5, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_6_pins_a[] = {
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+ { 6, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_7_pins_a[] = {
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+ { 7, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_8_pins_a[] = {
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+ { 8, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_9_pins_a[] = {
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+ { 9, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_10_pins_a[] = {
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+ { 10, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_11_pins_a[] = {
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+ { 11, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_12_pins_a[] = {
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+ { 12, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_13_pins_a[] = {
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+ { 13, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_14_pins_a[] = {
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+ { 14, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_15_pins_a[] = {
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+ { 15, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_16_pins_a[] = {
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+ { 16, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_17_pins_a[] = {
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+ { 17, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_18_pins_a[] = {
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+ { 18, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_19_pins_a[] = {
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+ { 19, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_20_pins_a[] = {
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+ { 20, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_21_pins_a[] = {
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+ { 21, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_22_pins_a[] = {
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+ { 22, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_23_pins_a[] = {
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+ { 23, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_24_pins_a[] = {
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+ { 24, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_25_pins_a[] = {
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+ { 25, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_26_pins_a[] = {
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+ { 26, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_27_pins_a[] = {
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+ { 27, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_28_pins_a[] = {
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+ { 28, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_29_pins_a[] = {
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+ { 29, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_30_pins_a[] = {
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+ { 30, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_31_pins_a[] = {
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+ { 31, 3 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_10_pins_b[] = {
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+ { 8, 2 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_11_pins_b[] = {
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+ { 9, 2 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_12_pins_b[] = {
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+ { 0, 2 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_13_pins_b[] = {
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+ { 1, 2 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup led_31_pins_b[] = {
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+ { 30, 2 },
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+};
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+
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+static const struct bcm4908_pinctrl_pin_setup hs_uart_pins[] = {
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+ { 10, 0 }, /* CTS */
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+ { 11, 0 }, /* RTS */
|
||||
+ { 12, 0 }, /* RXD */
|
||||
+ { 13, 0 }, /* TXD */
|
||||
+};
|
||||
+
|
||||
+static const struct bcm4908_pinctrl_pin_setup i2c_pins_a[] = {
|
||||
+ { 18, 0 }, /* SDA */
|
||||
+ { 19, 0 }, /* SCL */
|
||||
+};
|
||||
+
|
||||
+static const struct bcm4908_pinctrl_pin_setup i2c_pins_b[] = {
|
||||
+ { 22, 0 }, /* SDA */
|
||||
+ { 23, 0 }, /* SCL */
|
||||
+};
|
||||
+
|
||||
+static const struct bcm4908_pinctrl_pin_setup i2s_pins[] = {
|
||||
+ { 27, 0 }, /* MCLK */
|
||||
+ { 28, 0 }, /* LRCK */
|
||||
+ { 29, 0 }, /* SDATA */
|
||||
+ { 30, 0 }, /* SCLK */
|
||||
+};
|
||||
+
|
||||
+static const struct bcm4908_pinctrl_pin_setup nand_ctrl_pins[] = {
|
||||
+ { 32, 0 },
|
||||
+ { 33, 0 },
|
||||
+ { 34, 0 },
|
||||
+ { 43, 0 },
|
||||
+ { 44, 0 },
|
||||
+ { 45, 0 },
|
||||
+ { 56, 1 },
|
||||
+};
|
||||
+
|
||||
+static const struct bcm4908_pinctrl_pin_setup nand_data_pins[] = {
|
||||
+ { 35, 0 },
|
||||
+ { 36, 0 },
|
||||
+ { 37, 0 },
|
||||
+ { 38, 0 },
|
||||
+ { 39, 0 },
|
||||
+ { 40, 0 },
|
||||
+ { 41, 0 },
|
||||
+ { 42, 0 },
|
||||
+};
|
||||
+
|
||||
+static const struct bcm4908_pinctrl_pin_setup emmc_ctrl_pins[] = {
|
||||
+ { 46, 0 },
|
||||
+ { 47, 0 },
|
||||
+};
|
||||
+
|
||||
+static const struct bcm4908_pinctrl_pin_setup usb0_pwr_pins[] = {
|
||||
+ { 63, 0 },
|
||||
+ { 64, 0 },
|
||||
+};
|
||||
+
|
||||
+static const struct bcm4908_pinctrl_pin_setup usb1_pwr_pins[] = {
|
||||
+ { 66, 0 },
|
||||
+ { 67, 0 },
|
||||
+};
|
||||
+
|
||||
+struct bcm4908_pinctrl_grp {
|
||||
+ const char *name;
|
||||
+ const struct bcm4908_pinctrl_pin_setup *pins;
|
||||
+ const unsigned int num_pins;
|
||||
+};
|
||||
+
|
||||
+static const struct bcm4908_pinctrl_grp bcm4908_pinctrl_grps[] = {
|
||||
+ { "led_0_grp_a", led_0_pins_a, ARRAY_SIZE(led_0_pins_a) },
|
||||
+ { "led_1_grp_a", led_1_pins_a, ARRAY_SIZE(led_1_pins_a) },
|
||||
+ { "led_2_grp_a", led_2_pins_a, ARRAY_SIZE(led_2_pins_a) },
|
||||
+ { "led_3_grp_a", led_3_pins_a, ARRAY_SIZE(led_3_pins_a) },
|
||||
+ { "led_4_grp_a", led_4_pins_a, ARRAY_SIZE(led_4_pins_a) },
|
||||
+ { "led_5_grp_a", led_5_pins_a, ARRAY_SIZE(led_5_pins_a) },
|
||||
+ { "led_6_grp_a", led_6_pins_a, ARRAY_SIZE(led_6_pins_a) },
|
||||
+ { "led_7_grp_a", led_7_pins_a, ARRAY_SIZE(led_7_pins_a) },
|
||||
+ { "led_8_grp_a", led_8_pins_a, ARRAY_SIZE(led_8_pins_a) },
|
||||
+ { "led_9_grp_a", led_9_pins_a, ARRAY_SIZE(led_9_pins_a) },
|
||||
+ { "led_10_grp_a", led_10_pins_a, ARRAY_SIZE(led_10_pins_a) },
|
||||
+ { "led_11_grp_a", led_11_pins_a, ARRAY_SIZE(led_11_pins_a) },
|
||||
+ { "led_12_grp_a", led_12_pins_a, ARRAY_SIZE(led_12_pins_a) },
|
||||
+ { "led_13_grp_a", led_13_pins_a, ARRAY_SIZE(led_13_pins_a) },
|
||||
+ { "led_14_grp_a", led_14_pins_a, ARRAY_SIZE(led_14_pins_a) },
|
||||
+ { "led_15_grp_a", led_15_pins_a, ARRAY_SIZE(led_15_pins_a) },
|
||||
+ { "led_16_grp_a", led_16_pins_a, ARRAY_SIZE(led_16_pins_a) },
|
||||
+ { "led_17_grp_a", led_17_pins_a, ARRAY_SIZE(led_17_pins_a) },
|
||||
+ { "led_18_grp_a", led_18_pins_a, ARRAY_SIZE(led_18_pins_a) },
|
||||
+ { "led_19_grp_a", led_19_pins_a, ARRAY_SIZE(led_19_pins_a) },
|
||||
+ { "led_20_grp_a", led_20_pins_a, ARRAY_SIZE(led_20_pins_a) },
|
||||
+ { "led_21_grp_a", led_21_pins_a, ARRAY_SIZE(led_21_pins_a) },
|
||||
+ { "led_22_grp_a", led_22_pins_a, ARRAY_SIZE(led_22_pins_a) },
|
||||
+ { "led_23_grp_a", led_23_pins_a, ARRAY_SIZE(led_23_pins_a) },
|
||||
+ { "led_24_grp_a", led_24_pins_a, ARRAY_SIZE(led_24_pins_a) },
|
||||
+ { "led_25_grp_a", led_25_pins_a, ARRAY_SIZE(led_25_pins_a) },
|
||||
+ { "led_26_grp_a", led_26_pins_a, ARRAY_SIZE(led_26_pins_a) },
|
||||
+ { "led_27_grp_a", led_27_pins_a, ARRAY_SIZE(led_27_pins_a) },
|
||||
+ { "led_28_grp_a", led_28_pins_a, ARRAY_SIZE(led_28_pins_a) },
|
||||
+ { "led_29_grp_a", led_29_pins_a, ARRAY_SIZE(led_29_pins_a) },
|
||||
+ { "led_30_grp_a", led_30_pins_a, ARRAY_SIZE(led_30_pins_a) },
|
||||
+ { "led_31_grp_a", led_31_pins_a, ARRAY_SIZE(led_31_pins_a) },
|
||||
+ { "led_10_grp_b", led_10_pins_b, ARRAY_SIZE(led_10_pins_b) },
|
||||
+ { "led_11_grp_b", led_11_pins_b, ARRAY_SIZE(led_11_pins_b) },
|
||||
+ { "led_12_grp_b", led_12_pins_b, ARRAY_SIZE(led_12_pins_b) },
|
||||
+ { "led_13_grp_b", led_13_pins_b, ARRAY_SIZE(led_13_pins_b) },
|
||||
+ { "led_31_grp_b", led_31_pins_b, ARRAY_SIZE(led_31_pins_b) },
|
||||
+ { "hs_uart_grp", hs_uart_pins, ARRAY_SIZE(hs_uart_pins) },
|
||||
+ { "i2c_grp_a", i2c_pins_a, ARRAY_SIZE(i2c_pins_a) },
|
||||
+ { "i2c_grp_b", i2c_pins_b, ARRAY_SIZE(i2c_pins_b) },
|
||||
+ { "i2s_grp", i2s_pins, ARRAY_SIZE(i2s_pins) },
|
||||
+ { "nand_ctrl_grp", nand_ctrl_pins, ARRAY_SIZE(nand_ctrl_pins) },
|
||||
+ { "nand_data_grp", nand_data_pins, ARRAY_SIZE(nand_data_pins) },
|
||||
+ { "emmc_ctrl_grp", emmc_ctrl_pins, ARRAY_SIZE(emmc_ctrl_pins) },
|
||||
+ { "usb0_pwr_grp", usb0_pwr_pins, ARRAY_SIZE(usb0_pwr_pins) },
|
||||
+ { "usb1_pwr_grp", usb1_pwr_pins, ARRAY_SIZE(usb1_pwr_pins) },
|
||||
+};
|
||||
+
|
||||
+/*
|
||||
+ * Functions
|
||||
+ */
|
||||
+
|
||||
+struct bcm4908_pinctrl_function {
|
||||
+ const char *name;
|
||||
+ const char * const *groups;
|
||||
+ const unsigned int num_groups;
|
||||
+};
|
||||
+
|
||||
+static const char * const led_0_groups[] = { "led_0_grp_a" };
|
||||
+static const char * const led_1_groups[] = { "led_1_grp_a" };
|
||||
+static const char * const led_2_groups[] = { "led_2_grp_a" };
|
||||
+static const char * const led_3_groups[] = { "led_3_grp_a" };
|
||||
+static const char * const led_4_groups[] = { "led_4_grp_a" };
|
||||
+static const char * const led_5_groups[] = { "led_5_grp_a" };
|
||||
+static const char * const led_6_groups[] = { "led_6_grp_a" };
|
||||
+static const char * const led_7_groups[] = { "led_7_grp_a" };
|
||||
+static const char * const led_8_groups[] = { "led_8_grp_a" };
|
||||
+static const char * const led_9_groups[] = { "led_9_grp_a" };
|
||||
+static const char * const led_10_groups[] = { "led_10_grp_a", "led_10_grp_b" };
|
||||
+static const char * const led_11_groups[] = { "led_11_grp_a", "led_11_grp_b" };
|
||||
+static const char * const led_12_groups[] = { "led_12_grp_a", "led_12_grp_b" };
|
||||
+static const char * const led_13_groups[] = { "led_13_grp_a", "led_13_grp_b" };
|
||||
+static const char * const led_14_groups[] = { "led_14_grp_a" };
|
||||
+static const char * const led_15_groups[] = { "led_15_grp_a" };
|
||||
+static const char * const led_16_groups[] = { "led_16_grp_a" };
|
||||
+static const char * const led_17_groups[] = { "led_17_grp_a" };
|
||||
+static const char * const led_18_groups[] = { "led_18_grp_a" };
|
||||
+static const char * const led_19_groups[] = { "led_19_grp_a" };
|
||||
+static const char * const led_20_groups[] = { "led_20_grp_a" };
|
||||
+static const char * const led_21_groups[] = { "led_21_grp_a" };
|
||||
+static const char * const led_22_groups[] = { "led_22_grp_a" };
|
||||
+static const char * const led_23_groups[] = { "led_23_grp_a" };
|
||||
+static const char * const led_24_groups[] = { "led_24_grp_a" };
|
||||
+static const char * const led_25_groups[] = { "led_25_grp_a" };
|
||||
+static const char * const led_26_groups[] = { "led_26_grp_a" };
|
||||
+static const char * const led_27_groups[] = { "led_27_grp_a" };
|
||||
+static const char * const led_28_groups[] = { "led_28_grp_a" };
|
||||
+static const char * const led_29_groups[] = { "led_29_grp_a" };
|
||||
+static const char * const led_30_groups[] = { "led_30_grp_a" };
|
||||
+static const char * const led_31_groups[] = { "led_31_grp_a", "led_31_grp_b" };
|
||||
+static const char * const hs_uart_groups[] = { "hs_uart_grp" };
|
||||
+static const char * const i2c_groups[] = { "i2c_grp_a", "i2c_grp_b" };
|
||||
+static const char * const i2s_groups[] = { "i2s_grp" };
|
||||
+static const char * const nand_ctrl_groups[] = { "nand_ctrl_grp" };
|
||||
+static const char * const nand_data_groups[] = { "nand_data_grp" };
|
||||
+static const char * const emmc_ctrl_groups[] = { "emmc_ctrl_grp" };
|
||||
+static const char * const usb0_pwr_groups[] = { "usb0_pwr_grp" };
|
||||
+static const char * const usb1_pwr_groups[] = { "usb1_pwr_grp" };
|
||||
+
|
||||
+static const struct bcm4908_pinctrl_function bcm4908_pinctrl_functions[] = {
|
||||
+ { "led_0", led_0_groups, ARRAY_SIZE(led_0_groups) },
|
||||
+ { "led_1", led_1_groups, ARRAY_SIZE(led_1_groups) },
|
||||
+ { "led_2", led_2_groups, ARRAY_SIZE(led_2_groups) },
|
||||
+ { "led_3", led_3_groups, ARRAY_SIZE(led_3_groups) },
|
||||
+ { "led_4", led_4_groups, ARRAY_SIZE(led_4_groups) },
|
||||
+ { "led_5", led_5_groups, ARRAY_SIZE(led_5_groups) },
|
||||
+ { "led_6", led_6_groups, ARRAY_SIZE(led_6_groups) },
|
||||
+ { "led_7", led_7_groups, ARRAY_SIZE(led_7_groups) },
|
||||
+ { "led_8", led_8_groups, ARRAY_SIZE(led_8_groups) },
|
||||
+ { "led_9", led_9_groups, ARRAY_SIZE(led_9_groups) },
|
||||
+ { "led_10", led_10_groups, ARRAY_SIZE(led_10_groups) },
|
||||
+ { "led_11", led_11_groups, ARRAY_SIZE(led_11_groups) },
|
||||
+ { "led_12", led_12_groups, ARRAY_SIZE(led_12_groups) },
|
||||
+ { "led_13", led_13_groups, ARRAY_SIZE(led_13_groups) },
|
||||
+ { "led_14", led_14_groups, ARRAY_SIZE(led_14_groups) },
|
||||
+ { "led_15", led_15_groups, ARRAY_SIZE(led_15_groups) },
|
||||
+ { "led_16", led_16_groups, ARRAY_SIZE(led_16_groups) },
|
||||
+ { "led_17", led_17_groups, ARRAY_SIZE(led_17_groups) },
|
||||
+ { "led_18", led_18_groups, ARRAY_SIZE(led_18_groups) },
|
||||
+ { "led_19", led_19_groups, ARRAY_SIZE(led_19_groups) },
|
||||
+ { "led_20", led_20_groups, ARRAY_SIZE(led_20_groups) },
|
||||
+ { "led_21", led_21_groups, ARRAY_SIZE(led_21_groups) },
|
||||
+ { "led_22", led_22_groups, ARRAY_SIZE(led_22_groups) },
|
||||
+ { "led_23", led_23_groups, ARRAY_SIZE(led_23_groups) },
|
||||
+ { "led_24", led_24_groups, ARRAY_SIZE(led_24_groups) },
|
||||
+ { "led_25", led_25_groups, ARRAY_SIZE(led_25_groups) },
|
||||
+ { "led_26", led_26_groups, ARRAY_SIZE(led_26_groups) },
|
||||
+ { "led_27", led_27_groups, ARRAY_SIZE(led_27_groups) },
|
||||
+ { "led_28", led_28_groups, ARRAY_SIZE(led_28_groups) },
|
||||
+ { "led_29", led_29_groups, ARRAY_SIZE(led_29_groups) },
|
||||
+ { "led_30", led_30_groups, ARRAY_SIZE(led_30_groups) },
|
||||
+ { "led_31", led_31_groups, ARRAY_SIZE(led_31_groups) },
|
||||
+ { "hs_uart", hs_uart_groups, ARRAY_SIZE(hs_uart_groups) },
|
||||
+ { "i2c", i2c_groups, ARRAY_SIZE(i2c_groups) },
|
||||
+ { "i2s", i2s_groups, ARRAY_SIZE(i2s_groups) },
|
||||
+ { "nand_ctrl", nand_ctrl_groups, ARRAY_SIZE(nand_ctrl_groups) },
|
||||
+ { "nand_data", nand_data_groups, ARRAY_SIZE(nand_data_groups) },
|
||||
+ { "emmc_ctrl", emmc_ctrl_groups, ARRAY_SIZE(emmc_ctrl_groups) },
|
||||
+ { "usb0_pwr", usb0_pwr_groups, ARRAY_SIZE(usb0_pwr_groups) },
|
||||
+ { "usb1_pwr", usb1_pwr_groups, ARRAY_SIZE(usb1_pwr_groups) },
|
||||
+};
|
||||
+
|
||||
+/*
|
||||
+ * Groups code
|
||||
+ */
|
||||
+
|
||||
+static const struct pinctrl_ops bcm4908_pinctrl_ops = {
|
||||
+ .get_groups_count = pinctrl_generic_get_group_count,
|
||||
+ .get_group_name = pinctrl_generic_get_group_name,
|
||||
+ .get_group_pins = pinctrl_generic_get_group_pins,
|
||||
+ .dt_node_to_map = pinconf_generic_dt_node_to_map_group,
|
||||
+ .dt_free_map = pinconf_generic_dt_free_map,
|
||||
+};
|
||||
+
|
||||
+/*
|
||||
+ * Functions code
|
||||
+ */
|
||||
+
|
||||
+static int bcm4908_pinctrl_set_mux(struct pinctrl_dev *pctrl_dev,
|
||||
+ unsigned int func_selector,
|
||||
+ unsigned int group_selector)
|
||||
+{
|
||||
+ struct bcm4908_pinctrl *bcm4908_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev);
|
||||
+ const struct bcm4908_pinctrl_grp *group;
|
||||
+ struct group_desc *group_desc;
|
||||
+ int i;
|
||||
+
|
||||
+ group_desc = pinctrl_generic_get_group(pctrl_dev, group_selector);
|
||||
+ if (!group_desc)
|
||||
+ return -EINVAL;
|
||||
+ group = group_desc->data;
|
||||
+
|
||||
+ mutex_lock(&bcm4908_pinctrl->mutex);
|
||||
+ for (i = 0; i < group->num_pins; i++) {
|
||||
+ u32 lsb = 0;
|
||||
+
|
||||
+ lsb |= group->pins[i].number;
|
||||
+ lsb |= group->pins[i].function << BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT;
|
||||
+
|
||||
+ writel(0x0, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_MSB);
|
||||
+ writel(lsb, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_LSB);
|
||||
+ writel(BCM4908_TEST_PORT_CMD_LOAD_MUX_REG,
|
||||
+ bcm4908_pinctrl->base + BCM4908_TEST_PORT_COMMAND);
|
||||
+ }
|
||||
+ mutex_unlock(&bcm4908_pinctrl->mutex);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct pinmux_ops bcm4908_pinctrl_pmxops = {
|
||||
+ .get_functions_count = pinmux_generic_get_function_count,
|
||||
+ .get_function_name = pinmux_generic_get_function_name,
|
||||
+ .get_function_groups = pinmux_generic_get_function_groups,
|
||||
+ .set_mux = bcm4908_pinctrl_set_mux,
|
||||
+};
|
||||
+
|
||||
+/*
|
||||
+ * Controller code
|
||||
+ */
|
||||
+
|
||||
+static struct pinctrl_desc bcm4908_pinctrl_desc = {
|
||||
+ .name = "bcm4908-pinctrl",
|
||||
+ .pctlops = &bcm4908_pinctrl_ops,
|
||||
+ .pmxops = &bcm4908_pinctrl_pmxops,
|
||||
+};
|
||||
+
|
||||
+static const struct of_device_id bcm4908_pinctrl_of_match_table[] = {
|
||||
+ { .compatible = "brcm,bcm4908-pinctrl", },
|
||||
+ { }
|
||||
+};
|
||||
+
|
||||
+static int bcm4908_pinctrl_probe(struct platform_device *pdev)
|
||||
+{
|
||||
+ struct device *dev = &pdev->dev;
|
||||
+ struct bcm4908_pinctrl *bcm4908_pinctrl;
|
||||
+ struct pinctrl_desc *pctldesc;
|
||||
+ struct pinctrl_pin_desc *pins;
|
||||
+ int i;
|
||||
+
|
||||
+ bcm4908_pinctrl = devm_kzalloc(dev, sizeof(*bcm4908_pinctrl), GFP_KERNEL);
|
||||
+ if (!bcm4908_pinctrl)
|
||||
+ return -ENOMEM;
|
||||
+ pctldesc = &bcm4908_pinctrl->pctldesc;
|
||||
+ platform_set_drvdata(pdev, bcm4908_pinctrl);
|
||||
+
|
||||
+ /* Set basic properties */
|
||||
+
|
||||
+ bcm4908_pinctrl->dev = dev;
|
||||
+
|
||||
+ bcm4908_pinctrl->base = devm_platform_ioremap_resource(pdev, 0);
|
||||
+ if (IS_ERR(bcm4908_pinctrl->base))
|
||||
+ return PTR_ERR(bcm4908_pinctrl->base);
|
||||
+
|
||||
+ mutex_init(&bcm4908_pinctrl->mutex);
|
||||
+
|
||||
+ memcpy(pctldesc, &bcm4908_pinctrl_desc, sizeof(*pctldesc));
|
||||
+
|
||||
+ /* Set pinctrl properties */
|
||||
+
|
||||
+ pins = devm_kcalloc(dev, BCM4908_NUM_PINS, sizeof(*pins), GFP_KERNEL);
|
||||
+ if (!pins)
|
||||
+ return -ENOMEM;
|
||||
+ for (i = 0; i < BCM4908_NUM_PINS; i++) {
|
||||
+ pins[i].number = i;
|
||||
+ pins[i].name = devm_kasprintf(dev, GFP_KERNEL, "pin-%d", i);
|
||||
+ if (!pins[i].name)
|
||||
+ return -ENOMEM;
|
||||
+ }
|
||||
+ pctldesc->pins = pins;
|
||||
+ pctldesc->npins = BCM4908_NUM_PINS;
|
||||
+
|
||||
+ /* Register */
|
||||
+
|
||||
+ bcm4908_pinctrl->pctldev = devm_pinctrl_register(dev, pctldesc, bcm4908_pinctrl);
|
||||
+ if (IS_ERR(bcm4908_pinctrl->pctldev)) {
|
||||
+ dev_err(dev, "Failed to register pinctrl\n");
|
||||
+ return PTR_ERR(bcm4908_pinctrl->pctldev);
|
||||
+ }
|
||||
+
|
||||
+ /* Groups */
|
||||
+
|
||||
+ for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_grps); i++) {
|
||||
+ const struct bcm4908_pinctrl_grp *group = &bcm4908_pinctrl_grps[i];
|
||||
+ int *pins;
|
||||
+ int j;
|
||||
+
|
||||
+ pins = devm_kcalloc(dev, group->num_pins, sizeof(*pins), GFP_KERNEL);
|
||||
+ if (!pins)
|
||||
+ return -ENOMEM;
|
||||
+ for (j = 0; j < group->num_pins; j++)
|
||||
+ pins[j] = group->pins[j].number;
|
||||
+
|
||||
+ pinctrl_generic_add_group(bcm4908_pinctrl->pctldev, group->name,
|
||||
+ pins, group->num_pins, (void *)group);
|
||||
+ }
|
||||
+
|
||||
+ /* Functions */
|
||||
+
|
||||
+ for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_functions); i++) {
|
||||
+ const struct bcm4908_pinctrl_function *function = &bcm4908_pinctrl_functions[i];
|
||||
+
|
||||
+ pinmux_generic_add_function(bcm4908_pinctrl->pctldev,
|
||||
+ function->name,
|
||||
+ function->groups,
|
||||
+ function->num_groups, NULL);
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static struct platform_driver bcm4908_pinctrl_driver = {
|
||||
+ .probe = bcm4908_pinctrl_probe,
|
||||
+ .driver = {
|
||||
+ .name = "bcm4908-pinctrl",
|
||||
+ .of_match_table = bcm4908_pinctrl_of_match_table,
|
||||
+ },
|
||||
+};
|
||||
+
|
||||
+module_platform_driver(bcm4908_pinctrl_driver);
|
||||
+
|
||||
+MODULE_AUTHOR("Rafał Miłecki");
|
||||
+MODULE_LICENSE("GPL v2");
|
||||
+MODULE_DEVICE_TABLE(of, bcm4908_pinctrl_of_match_table);
|
||||
Loading…
Reference in New Issue