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-rw-r--r--drivers/tty/serial/Kconfig9
-rw-r--r--drivers/tty/serial/Makefile1
-rw-r--r--drivers/tty/serial/max3107-aava.c344
3 files changed, 0 insertions, 354 deletions
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 0bff23897509..2de99248dfae 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -264,15 +264,6 @@ config SERIAL_MAX3107
264 help 264 help
265 MAX3107 chip support 265 MAX3107 chip support
266 266
267config SERIAL_MAX3107_AAVA
268 tristate "MAX3107 AAVA platform support"
269 depends on X86_MRST && SERIAL_MAX3107 && GPIOLIB
270 select SERIAL_CORE
271 help
272 Support for the MAX3107 chip configuration found on the AAVA
273 platform. Includes the extra initialisation and GPIO support
274 neded for this device.
275
276config SERIAL_DZ 267config SERIAL_DZ
277 bool "DECstation DZ serial driver" 268 bool "DECstation DZ serial driver"
278 depends on MACH_DECSTATION && 32BIT 269 depends on MACH_DECSTATION && 32BIT
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index a6d1ac049965..fef32e10c851 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -29,7 +29,6 @@ obj-$(CONFIG_SERIAL_BFIN_SPORT) += bfin_sport_uart.o
29obj-$(CONFIG_SERIAL_SAMSUNG) += samsung.o 29obj-$(CONFIG_SERIAL_SAMSUNG) += samsung.o
30obj-$(CONFIG_SERIAL_MAX3100) += max3100.o 30obj-$(CONFIG_SERIAL_MAX3100) += max3100.o
31obj-$(CONFIG_SERIAL_MAX3107) += max3107.o 31obj-$(CONFIG_SERIAL_MAX3107) += max3107.o
32obj-$(CONFIG_SERIAL_MAX3107_AAVA) += max3107-aava.o
33obj-$(CONFIG_SERIAL_IP22_ZILOG) += ip22zilog.o 32obj-$(CONFIG_SERIAL_IP22_ZILOG) += ip22zilog.o
34obj-$(CONFIG_SERIAL_MUX) += mux.o 33obj-$(CONFIG_SERIAL_MUX) += mux.o
35obj-$(CONFIG_SERIAL_68328) += 68328serial.o 34obj-$(CONFIG_SERIAL_68328) += 68328serial.o
diff --git a/drivers/tty/serial/max3107-aava.c b/drivers/tty/serial/max3107-aava.c
deleted file mode 100644
index aae772a71de6..000000000000
--- a/drivers/tty/serial/max3107-aava.c
+++ /dev/null
@@ -1,344 +0,0 @@
1/*
2 * max3107.c - spi uart protocol driver for Maxim 3107
3 * Based on max3100.c
4 * by Christian Pellegrin <chripell@evolware.org>
5 * and max3110.c
6 * by Feng Tang <feng.tang@intel.com>
7 *
8 * Copyright (C) Aavamobile 2009
9 *
10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 *
26 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
27 *
28 */
29
30#include <linux/delay.h>
31#include <linux/device.h>
32#include <linux/serial_core.h>
33#include <linux/serial.h>
34#include <linux/spi/spi.h>
35#include <linux/freezer.h>
36#include <linux/platform_device.h>
37#include <linux/gpio.h>
38#include <linux/sfi.h>
39#include <linux/module.h>
40#include <asm/mrst.h>
41#include "max3107.h"
42
43/* GPIO direction to input function */
44static int max3107_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
45{
46 struct max3107_port *s = container_of(chip, struct max3107_port, chip);
47 u16 buf[1]; /* Buffer for SPI transfer */
48
49 if (offset >= MAX3107_GPIO_COUNT) {
50 dev_err(&s->spi->dev, "Invalid GPIO\n");
51 return -EINVAL;
52 }
53
54 /* Read current GPIO configuration register */
55 buf[0] = MAX3107_GPIOCFG_REG;
56 /* Perform SPI transfer */
57 if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 2)) {
58 dev_err(&s->spi->dev, "SPI transfer GPIO read failed\n");
59 return -EIO;
60 }
61 buf[0] &= MAX3107_SPI_RX_DATA_MASK;
62
63 /* Set GPIO to input */
64 buf[0] &= ~(0x0001 << offset);
65
66 /* Write new GPIO configuration register value */
67 buf[0] |= (MAX3107_WRITE_BIT | MAX3107_GPIOCFG_REG);
68 /* Perform SPI transfer */
69 if (max3107_rw(s, (u8 *)buf, NULL, 2)) {
70 dev_err(&s->spi->dev, "SPI transfer GPIO write failed\n");
71 return -EIO;
72 }
73 return 0;
74}
75
76/* GPIO direction to output function */
77static int max3107_gpio_direction_out(struct gpio_chip *chip, unsigned offset,
78 int value)
79{
80 struct max3107_port *s = container_of(chip, struct max3107_port, chip);
81 u16 buf[2]; /* Buffer for SPI transfers */
82
83 if (offset >= MAX3107_GPIO_COUNT) {
84 dev_err(&s->spi->dev, "Invalid GPIO\n");
85 return -EINVAL;
86 }
87
88 /* Read current GPIO configuration and data registers */
89 buf[0] = MAX3107_GPIOCFG_REG;
90 buf[1] = MAX3107_GPIODATA_REG;
91 /* Perform SPI transfer */
92 if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 4)) {
93 dev_err(&s->spi->dev, "SPI transfer gpio failed\n");
94 return -EIO;
95 }
96 buf[0] &= MAX3107_SPI_RX_DATA_MASK;
97 buf[1] &= MAX3107_SPI_RX_DATA_MASK;
98
99 /* Set GPIO to output */
100 buf[0] |= (0x0001 << offset);
101 /* Set value */
102 if (value)
103 buf[1] |= (0x0001 << offset);
104 else
105 buf[1] &= ~(0x0001 << offset);
106
107 /* Write new GPIO configuration and data register values */
108 buf[0] |= (MAX3107_WRITE_BIT | MAX3107_GPIOCFG_REG);
109 buf[1] |= (MAX3107_WRITE_BIT | MAX3107_GPIODATA_REG);
110 /* Perform SPI transfer */
111 if (max3107_rw(s, (u8 *)buf, NULL, 4)) {
112 dev_err(&s->spi->dev,
113 "SPI transfer for GPIO conf data w failed\n");
114 return -EIO;
115 }
116 return 0;
117}
118
119/* GPIO value query function */
120static int max3107_gpio_get(struct gpio_chip *chip, unsigned offset)
121{
122 struct max3107_port *s = container_of(chip, struct max3107_port, chip);
123 u16 buf[1]; /* Buffer for SPI transfer */
124
125 if (offset >= MAX3107_GPIO_COUNT) {
126 dev_err(&s->spi->dev, "Invalid GPIO\n");
127 return -EINVAL;
128 }
129
130 /* Read current GPIO data register */
131 buf[0] = MAX3107_GPIODATA_REG;
132 /* Perform SPI transfer */
133 if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 2)) {
134 dev_err(&s->spi->dev, "SPI transfer GPIO data r failed\n");
135 return -EIO;
136 }
137 buf[0] &= MAX3107_SPI_RX_DATA_MASK;
138
139 /* Return value */
140 return buf[0] & (0x0001 << offset);
141}
142
143/* GPIO value set function */
144static void max3107_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
145{
146 struct max3107_port *s = container_of(chip, struct max3107_port, chip);
147 u16 buf[2]; /* Buffer for SPI transfers */
148
149 if (offset >= MAX3107_GPIO_COUNT) {
150 dev_err(&s->spi->dev, "Invalid GPIO\n");
151 return;
152 }
153
154 /* Read current GPIO configuration registers*/
155 buf[0] = MAX3107_GPIODATA_REG;
156 buf[1] = MAX3107_GPIOCFG_REG;
157 /* Perform SPI transfer */
158 if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 4)) {
159 dev_err(&s->spi->dev,
160 "SPI transfer for GPIO data and config read failed\n");
161 return;
162 }
163 buf[0] &= MAX3107_SPI_RX_DATA_MASK;
164 buf[1] &= MAX3107_SPI_RX_DATA_MASK;
165
166 if (!(buf[1] & (0x0001 << offset))) {
167 /* Configured as input, can't set value */
168 dev_warn(&s->spi->dev,
169 "Trying to set value for input GPIO\n");
170 return;
171 }
172
173 /* Set value */
174 if (value)
175 buf[0] |= (0x0001 << offset);
176 else
177 buf[0] &= ~(0x0001 << offset);
178
179 /* Write new GPIO data register value */
180 buf[0] |= (MAX3107_WRITE_BIT | MAX3107_GPIODATA_REG);
181 /* Perform SPI transfer */
182 if (max3107_rw(s, (u8 *)buf, NULL, 2))
183 dev_err(&s->spi->dev, "SPI transfer GPIO data w failed\n");
184}
185
186/* GPIO chip data */
187static struct gpio_chip max3107_gpio_chip = {
188 .owner = THIS_MODULE,
189 .direction_input = max3107_gpio_direction_in,
190 .direction_output = max3107_gpio_direction_out,
191 .get = max3107_gpio_get,
192 .set = max3107_gpio_set,
193 .can_sleep = 1,
194 .base = MAX3107_GPIO_BASE,
195 .ngpio = MAX3107_GPIO_COUNT,
196};
197
198/**
199 * max3107_aava_reset - reset on AAVA systems
200 * @spi: The SPI device we are probing
201 *
202 * Reset the device ready for probing.
203 */
204
205static int max3107_aava_reset(struct spi_device *spi)
206{
207 /* Reset the chip */
208 if (gpio_request(MAX3107_RESET_GPIO, "max3107")) {
209 pr_err("Requesting RESET GPIO failed\n");
210 return -EIO;
211 }
212 if (gpio_direction_output(MAX3107_RESET_GPIO, 0)) {
213 pr_err("Setting RESET GPIO to 0 failed\n");
214 gpio_free(MAX3107_RESET_GPIO);
215 return -EIO;
216 }
217 msleep(MAX3107_RESET_DELAY);
218 if (gpio_direction_output(MAX3107_RESET_GPIO, 1)) {
219 pr_err("Setting RESET GPIO to 1 failed\n");
220 gpio_free(MAX3107_RESET_GPIO);
221 return -EIO;
222 }
223 gpio_free(MAX3107_RESET_GPIO);
224 msleep(MAX3107_WAKEUP_DELAY);
225 return 0;
226}
227
228static int max3107_aava_configure(struct max3107_port *s)
229{
230 int retval;
231
232 /* Initialize GPIO chip data */
233 s->chip = max3107_gpio_chip;
234 s->chip.label = s->spi->modalias;
235 s->chip.dev = &s->spi->dev;
236
237 /* Add GPIO chip */
238 retval = gpiochip_add(&s->chip);
239 if (retval) {
240 dev_err(&s->spi->dev, "Adding GPIO chip failed\n");
241 return retval;
242 }
243
244 /* Temporary fix for EV2 boot problems, set modem reset to 0 */
245 max3107_gpio_direction_out(&s->chip, 3, 0);
246 return 0;
247}
248
249#if 0
250/* This will get enabled once we have the board stuff merged for this
251 specific case */
252
253static const struct baud_table brg13_ext[] = {
254 { 300, MAX3107_BRG13_B300 },
255 { 600, MAX3107_BRG13_B600 },
256 { 1200, MAX3107_BRG13_B1200 },
257 { 2400, MAX3107_BRG13_B2400 },
258 { 4800, MAX3107_BRG13_B4800 },
259 { 9600, MAX3107_BRG13_B9600 },
260 { 19200, MAX3107_BRG13_B19200 },
261 { 57600, MAX3107_BRG13_B57600 },
262 { 115200, MAX3107_BRG13_B115200 },
263 { 230400, MAX3107_BRG13_B230400 },
264 { 460800, MAX3107_BRG13_B460800 },
265 { 921600, MAX3107_BRG13_B921600 },
266 { 0, 0 }
267};
268
269static void max3107_aava_init(struct max3107_port *s)
270{
271 /*override for AAVA SC specific*/
272 if (mrst_platform_id() == MRST_PLATFORM_AAVA_SC) {
273 if (get_koski_build_id() <= KOSKI_EV2)
274 if (s->ext_clk) {
275 s->brg_cfg = MAX3107_BRG13_B9600;
276 s->baud_tbl = (struct baud_table *)brg13_ext;
277 }
278 }
279}
280#endif
281
282static int __devexit max3107_aava_remove(struct spi_device *spi)
283{
284 struct max3107_port *s = dev_get_drvdata(&spi->dev);
285
286 /* Remove GPIO chip */
287 if (gpiochip_remove(&s->chip))
288 dev_warn(&spi->dev, "Removing GPIO chip failed\n");
289
290 /* Then do the default remove */
291 return max3107_remove(spi);
292}
293
294/* Platform data */
295static struct max3107_plat aava_plat_data = {
296 .loopback = 0,
297 .ext_clk = 1,
298/* .init = max3107_aava_init, */
299 .configure = max3107_aava_configure,
300 .hw_suspend = max3107_hw_susp,
301 .polled_mode = 0,
302 .poll_time = 0,
303};
304
305
306static int __devinit max3107_probe_aava(struct spi_device *spi)
307{
308 int err = max3107_aava_reset(spi);
309 if (err < 0)
310 return err;
311 return max3107_probe(spi, &aava_plat_data);
312}
313
314/* Spi driver data */
315static struct spi_driver max3107_driver = {
316 .driver = {
317 .name = "aava-max3107",
318 .owner = THIS_MODULE,
319 },
320 .probe = max3107_probe_aava,
321 .remove = __devexit_p(max3107_aava_remove),
322 .suspend = max3107_suspend,
323 .resume = max3107_resume,
324};
325
326/* Driver init function */
327static int __init max3107_init(void)
328{
329 return spi_register_driver(&max3107_driver);
330}
331
332/* Driver exit function */
333static void __exit max3107_exit(void)
334{
335 spi_unregister_driver(&max3107_driver);
336}
337
338module_init(max3107_init);
339module_exit(max3107_exit);
340
341MODULE_DESCRIPTION("MAX3107 driver");
342MODULE_AUTHOR("Aavamobile");
343MODULE_ALIAS("spi:aava-max3107");
344MODULE_LICENSE("GPL v2");
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-29 14:20:45 -0500