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path: root/drivers/pinctrl/sunxi/pinctrl-sun6i-a31-r.c
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Diffstat (limited to 'drivers/pinctrl/sunxi/pinctrl-sun6i-a31-r.c')
-rw-r--r--drivers/pinctrl/sunxi/pinctrl-sun6i-a31-r.c141
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/pinctrl/sunxi/pinctrl-sun6i-a31-r.c b/drivers/pinctrl/sunxi/pinctrl-sun6i-a31-r.c
new file mode 100644
index 000000000000..8fcba48e0a42
--- /dev/null
+++ b/drivers/pinctrl/sunxi/pinctrl-sun6i-a31-r.c
@@ -0,0 +1,141 @@
+/*
+ * Allwinner A31 SoCs special pins pinctrl driver.
+ *
+ * Copyright (C) 2014 Boris Brezillon
+ * Boris Brezillon <boris.brezillon@free-electrons.com>
+ *
+ * Copyright (C) 2014 Maxime Ripard
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/reset.h>
+
+#include "pinctrl-sunxi.h"
+
+static const struct sunxi_desc_pin sun6i_a31_r_pins[] = {
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_twi"), /* SCK */
+ SUNXI_FUNCTION(0x3, "s_p2wi")), /* SCK */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_twi"), /* SDA */
+ SUNXI_FUNCTION(0x3, "s_p2wi")), /* SDA */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_uart")), /* TX */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_uart")), /* RX */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_ir")), /* RX */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x3, "s_jtag")), /* MS */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x3, "s_jtag")), /* CK */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x3, "s_jtag")), /* DO */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 8),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x3, "s_jtag")), /* DI */
+ /* Hole */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 0),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out")),
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 1),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out")),
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 2),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x3, "1wire")),
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 3),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out")),
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 4),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out")),
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 5),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out")),
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 6),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out")),
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 7),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x3, "rtc")), /* CLKO */
+};
+
+static const struct sunxi_pinctrl_desc sun6i_a31_r_pinctrl_data = {
+ .pins = sun6i_a31_r_pins,
+ .npins = ARRAY_SIZE(sun6i_a31_r_pins),
+ .pin_base = PL_BASE,
+};
+
+static int sun6i_a31_r_pinctrl_probe(struct platform_device *pdev)
+{
+ struct reset_control *rstc;
+ int ret;
+
+ rstc = devm_reset_control_get(&pdev->dev, NULL);
+ if (IS_ERR(rstc)) {
+ dev_err(&pdev->dev, "Reset controller missing\n");
+ return PTR_ERR(rstc);
+ }
+
+ ret = reset_control_deassert(rstc);
+ if (ret)
+ return ret;
+
+ ret = sunxi_pinctrl_init(pdev,
+ &sun6i_a31_r_pinctrl_data);
+
+ if (ret)
+ reset_control_assert(rstc);
+
+ return ret;
+}
+
+static struct of_device_id sun6i_a31_r_pinctrl_match[] = {
+ { .compatible = "allwinner,sun6i-a31-r-pinctrl", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, sun6i_a31_r_pinctrl_match);
+
+static struct platform_driver sun6i_a31_r_pinctrl_driver = {
+ .probe = sun6i_a31_r_pinctrl_probe,
+ .driver = {
+ .name = "sun6i-a31-r-pinctrl",
+ .owner = THIS_MODULE,
+ .of_match_table = sun6i_a31_r_pinctrl_match,
+ },
+};
+module_platform_driver(sun6i_a31_r_pinctrl_driver);
+
+MODULE_AUTHOR("Boris Brezillon <boris.brezillon@free-electrons.com");
+MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com");
+MODULE_DESCRIPTION("Allwinner A31 R_PIO pinctrl driver");
+MODULE_LICENSE("GPL");