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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2014-10-03 14:24:46 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2014-10-03 14:24:46 -0400
commit447a8b858e4bda41c394b1bc7fdbc9dc0bdf44f6 (patch)
tree676e741f2552c9cb301e1e49c557b92bf8940f55 /drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c
parent3049683eafdbbbd7350b0e5ca02a2d8c026a3362 (diff)
parent042e1c79166b9250edd8262bea84e1703f27ad2e (diff)
Merge branch 'next' into for-linus
Prepare first round of input updates for 3.18.
Diffstat (limited to 'drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c')
-rw-r--r--drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c142
1 files changed, 142 insertions, 0 deletions
diff --git a/drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c b/drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c
new file mode 100644
index 000000000000..90f3b3a7c51e
--- /dev/null
+++ b/drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c
@@ -0,0 +1,142 @@
1/*
2 * Allwinner A23 SoCs special pins pinctrl driver.
3 *
4 * Copyright (C) 2014 Chen-Yu Tsai
5 * Chen-Yu Tsai <wens@csie.org>
6 *
7 * Copyright (C) 2014 Boris Brezillon
8 * Boris Brezillon <boris.brezillon@free-electrons.com>
9 *
10 * Copyright (C) 2014 Maxime Ripard
11 * Maxime Ripard <maxime.ripard@free-electrons.com>
12 *
13 * This file is licensed under the terms of the GNU General Public
14 * License version 2. This program is licensed "as is" without any
15 * warranty of any kind, whether express or implied.
16 */
17
18#include <linux/module.h>
19#include <linux/platform_device.h>
20#include <linux/of.h>
21#include <linux/of_device.h>
22#include <linux/pinctrl/pinctrl.h>
23#include <linux/reset.h>
24
25#include "pinctrl-sunxi.h"
26
27static const struct sunxi_desc_pin sun8i_a23_r_pins[] = {
28 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
29 SUNXI_FUNCTION(0x0, "gpio_in"),
30 SUNXI_FUNCTION(0x1, "gpio_out"),
31 SUNXI_FUNCTION(0x2, "s_rsb"), /* SCK */
32 SUNXI_FUNCTION(0x3, "s_twi"), /* SCK */
33 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 0)), /* PL_EINT0 */
34 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
35 SUNXI_FUNCTION(0x0, "gpio_in"),
36 SUNXI_FUNCTION(0x1, "gpio_out"),
37 SUNXI_FUNCTION(0x2, "s_rsb"), /* SDA */
38 SUNXI_FUNCTION(0x3, "s_twi"), /* SDA */
39 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 1)), /* PL_EINT1 */
40 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
41 SUNXI_FUNCTION(0x0, "gpio_in"),
42 SUNXI_FUNCTION(0x1, "gpio_out"),
43 SUNXI_FUNCTION(0x2, "s_uart"), /* TX */
44 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 2)), /* PL_EINT2 */
45 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
46 SUNXI_FUNCTION(0x0, "gpio_in"),
47 SUNXI_FUNCTION(0x1, "gpio_out"),
48 SUNXI_FUNCTION(0x2, "s_uart"), /* RX */
49 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 3)), /* PL_EINT3 */
50 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
51 SUNXI_FUNCTION(0x0, "gpio_in"),
52 SUNXI_FUNCTION(0x1, "gpio_out"),
53 SUNXI_FUNCTION(0x3, "s_jtag"), /* MS */
54 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 4)), /* PL_EINT4 */
55 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
56 SUNXI_FUNCTION(0x0, "gpio_in"),
57 SUNXI_FUNCTION(0x1, "gpio_out"),
58 SUNXI_FUNCTION(0x3, "s_jtag"), /* CK */
59 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 5)), /* PL_EINT5 */
60 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
61 SUNXI_FUNCTION(0x0, "gpio_in"),
62 SUNXI_FUNCTION(0x1, "gpio_out"),
63 SUNXI_FUNCTION(0x3, "s_jtag"), /* DO */
64 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 6)), /* PL_EINT6 */
65 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
66 SUNXI_FUNCTION(0x0, "gpio_in"),
67 SUNXI_FUNCTION(0x1, "gpio_out"),
68 SUNXI_FUNCTION(0x3, "s_jtag"), /* DI */
69 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 7)), /* PL_EINT7 */
70 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 8),
71 SUNXI_FUNCTION(0x0, "gpio_in"),
72 SUNXI_FUNCTION(0x1, "gpio_out"),
73 SUNXI_FUNCTION(0x2, "s_twi"), /* SCK */
74 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 8)), /* PL_EINT8 */
75 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 9),
76 SUNXI_FUNCTION(0x0, "gpio_in"),
77 SUNXI_FUNCTION(0x1, "gpio_out"),
78 SUNXI_FUNCTION(0x2, "s_twi"), /* SDA */
79 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 9)), /* PL_EINT9 */
80 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 10),
81 SUNXI_FUNCTION(0x0, "gpio_in"),
82 SUNXI_FUNCTION(0x1, "gpio_out"),
83 SUNXI_FUNCTION(0x2, "s_pwm"),
84 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 10)), /* PL_EINT10 */
85 SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 11),
86 SUNXI_FUNCTION(0x0, "gpio_in"),
87 SUNXI_FUNCTION(0x1, "gpio_out"),
88 SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 11)), /* PL_EINT11 */
89};
90
91static const struct sunxi_pinctrl_desc sun8i_a23_r_pinctrl_data = {
92 .pins = sun8i_a23_r_pins,
93 .npins = ARRAY_SIZE(sun8i_a23_r_pins),
94 .pin_base = PL_BASE,
95 .irq_banks = 1,
96};
97
98static int sun8i_a23_r_pinctrl_probe(struct platform_device *pdev)
99{
100 struct reset_control *rstc;
101 int ret;
102
103 rstc = devm_reset_control_get(&pdev->dev, NULL);
104 if (IS_ERR(rstc)) {
105 dev_err(&pdev->dev, "Reset controller missing\n");
106 return PTR_ERR(rstc);
107 }
108
109 ret = reset_control_deassert(rstc);
110 if (ret)
111 return ret;
112
113 ret = sunxi_pinctrl_init(pdev,
114 &sun8i_a23_r_pinctrl_data);
115
116 if (ret)
117 reset_control_assert(rstc);
118
119 return ret;
120}
121
122static struct of_device_id sun8i_a23_r_pinctrl_match[] = {
123 { .compatible = "allwinner,sun8i-a23-r-pinctrl", },
124 {}
125};
126MODULE_DEVICE_TABLE(of, sun8i_a23_r_pinctrl_match);
127
128static struct platform_driver sun8i_a23_r_pinctrl_driver = {
129 .probe = sun8i_a23_r_pinctrl_probe,
130 .driver = {
131 .name = "sun8i-a23-r-pinctrl",
132 .owner = THIS_MODULE,
133 .of_match_table = sun8i_a23_r_pinctrl_match,
134 },
135};
136module_platform_driver(sun8i_a23_r_pinctrl_driver);
137
138MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
139MODULE_AUTHOR("Boris Brezillon <boris.brezillon@free-electrons.com");
140MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com");
141MODULE_DESCRIPTION("Allwinner A23 R_PIO pinctrl driver");
142MODULE_LICENSE("GPL");
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