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-rw-r--r--drivers/gpio/74x164.c27
-rw-r--r--drivers/gpio/Kconfig32
-rw-r--r--drivers/gpio/Makefile1
-rw-r--r--drivers/gpio/gpio-ep93xx.c410
-rw-r--r--drivers/gpio/pca953x.c1
5 files changed, 434 insertions, 37 deletions
diff --git a/drivers/gpio/74x164.c b/drivers/gpio/74x164.c
index 84e070219839..7fb60b6bf523 100644
--- a/drivers/gpio/74x164.c
+++ b/drivers/gpio/74x164.c
@@ -16,9 +16,6 @@
16#include <linux/gpio.h> 16#include <linux/gpio.h>
17#include <linux/slab.h> 17#include <linux/slab.h>
18 18
19#define GEN_74X164_GPIO_COUNT 8
20
21
22struct gen_74x164_chip { 19struct gen_74x164_chip {
23 struct spi_device *spi; 20 struct spi_device *spi;
24 struct gpio_chip gpio_chip; 21 struct gpio_chip gpio_chip;
@@ -26,8 +23,6 @@ struct gen_74x164_chip {
26 u8 port_config; 23 u8 port_config;
27}; 24};
28 25
29static void gen_74x164_set_value(struct gpio_chip *, unsigned, int);
30
31static struct gen_74x164_chip *gpio_to_chip(struct gpio_chip *gc) 26static struct gen_74x164_chip *gpio_to_chip(struct gpio_chip *gc)
32{ 27{
33 return container_of(gc, struct gen_74x164_chip, gpio_chip); 28 return container_of(gc, struct gen_74x164_chip, gpio_chip);
@@ -39,13 +34,6 @@ static int __gen_74x164_write_config(struct gen_74x164_chip *chip)
39 &chip->port_config, sizeof(chip->port_config)); 34 &chip->port_config, sizeof(chip->port_config));
40} 35}
41 36
42static int gen_74x164_direction_output(struct gpio_chip *gc,
43 unsigned offset, int val)
44{
45 gen_74x164_set_value(gc, offset, val);
46 return 0;
47}
48
49static int gen_74x164_get_value(struct gpio_chip *gc, unsigned offset) 37static int gen_74x164_get_value(struct gpio_chip *gc, unsigned offset)
50{ 38{
51 struct gen_74x164_chip *chip = gpio_to_chip(gc); 39 struct gen_74x164_chip *chip = gpio_to_chip(gc);
@@ -73,6 +61,13 @@ static void gen_74x164_set_value(struct gpio_chip *gc,
73 mutex_unlock(&chip->lock); 61 mutex_unlock(&chip->lock);
74} 62}
75 63
64static int gen_74x164_direction_output(struct gpio_chip *gc,
65 unsigned offset, int val)
66{
67 gen_74x164_set_value(gc, offset, val);
68 return 0;
69}
70
76static int __devinit gen_74x164_probe(struct spi_device *spi) 71static int __devinit gen_74x164_probe(struct spi_device *spi)
77{ 72{
78 struct gen_74x164_chip *chip; 73 struct gen_74x164_chip *chip;
@@ -104,12 +99,12 @@ static int __devinit gen_74x164_probe(struct spi_device *spi)
104 99
105 chip->spi = spi; 100 chip->spi = spi;
106 101
107 chip->gpio_chip.label = GEN_74X164_DRIVER_NAME, 102 chip->gpio_chip.label = spi->modalias;
108 chip->gpio_chip.direction_output = gen_74x164_direction_output; 103 chip->gpio_chip.direction_output = gen_74x164_direction_output;
109 chip->gpio_chip.get = gen_74x164_get_value; 104 chip->gpio_chip.get = gen_74x164_get_value;
110 chip->gpio_chip.set = gen_74x164_set_value; 105 chip->gpio_chip.set = gen_74x164_set_value;
111 chip->gpio_chip.base = pdata->base; 106 chip->gpio_chip.base = pdata->base;
112 chip->gpio_chip.ngpio = GEN_74X164_GPIO_COUNT; 107 chip->gpio_chip.ngpio = 8;
113 chip->gpio_chip.can_sleep = 1; 108 chip->gpio_chip.can_sleep = 1;
114 chip->gpio_chip.dev = &spi->dev; 109 chip->gpio_chip.dev = &spi->dev;
115 chip->gpio_chip.owner = THIS_MODULE; 110 chip->gpio_chip.owner = THIS_MODULE;
@@ -157,7 +152,7 @@ static int __devexit gen_74x164_remove(struct spi_device *spi)
157 152
158static struct spi_driver gen_74x164_driver = { 153static struct spi_driver gen_74x164_driver = {
159 .driver = { 154 .driver = {
160 .name = GEN_74X164_DRIVER_NAME, 155 .name = "74x164",
161 .owner = THIS_MODULE, 156 .owner = THIS_MODULE,
162 }, 157 },
163 .probe = gen_74x164_probe, 158 .probe = gen_74x164_probe,
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 57d7bc547f4b..f8b6e7d27e4c 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -86,12 +86,13 @@ config GPIO_IT8761E
86 help 86 help
87 Say yes here to support GPIO functionality of IT8761E super I/O chip. 87 Say yes here to support GPIO functionality of IT8761E super I/O chip.
88 88
89config GPIO_EP93XX
90 def_bool y
91 depends on ARCH_EP93XX
92
89config GPIO_EXYNOS4 93config GPIO_EXYNOS4
90 bool "Samsung Exynos4 GPIO library support" 94 def_bool y
91 default y if CPU_EXYNOS4210 95 depends on CPU_EXYNOS4210
92 depends on ARM
93 help
94 Say yes here to support Samsung Exynos4 series SoCs GPIO library
95 96
96config GPIO_MXS 97config GPIO_MXS
97 def_bool y 98 def_bool y
@@ -103,25 +104,16 @@ config GPIO_MXC
103 select GPIO_BASIC_MMIO_CORE 104 select GPIO_BASIC_MMIO_CORE
104 105
105config GPIO_PLAT_SAMSUNG 106config GPIO_PLAT_SAMSUNG
106 bool "Samsung SoCs GPIO library support" 107 def_bool y
107 default y if SAMSUNG_GPIOLIB_4BIT 108 depends on SAMSUNG_GPIOLIB_4BIT
108 depends on ARM
109 help
110 Say yes here to support Samsung SoCs GPIO library
111 109
112config GPIO_S5PC100 110config GPIO_S5PC100
113 bool "Samsung S5PC100 GPIO library support" 111 def_bool y
114 default y if CPU_S5PC100 112 depends on CPU_S5PC100
115 depends on ARM
116 help
117 Say yes here to support Samsung S5PC100 SoCs GPIO library
118 113
119config GPIO_S5PV210 114config GPIO_S5PV210
120 bool "Samsung S5PV210/S5PC110 GPIO library support" 115 def_bool y
121 default y if CPU_S5PV210 116 depends on CPU_S5PV210
122 depends on ARM
123 help
124 Say yes here to support Samsung S5PV210/S5PC110 SoCs GPIO library
125 117
126config GPIO_PL061 118config GPIO_PL061
127 bool "PrimeCell PL061 GPIO support" 119 bool "PrimeCell PL061 GPIO support"
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 9c37339a57a7..66923cf3ad6a 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_GPIO_ADP5520) += adp5520-gpio.o
8obj-$(CONFIG_GPIO_ADP5588) += adp5588-gpio.o 8obj-$(CONFIG_GPIO_ADP5588) += adp5588-gpio.o
9obj-$(CONFIG_GPIO_BASIC_MMIO_CORE) += basic_mmio_gpio.o 9obj-$(CONFIG_GPIO_BASIC_MMIO_CORE) += basic_mmio_gpio.o
10obj-$(CONFIG_GPIO_BASIC_MMIO) += basic_mmio_gpio.o 10obj-$(CONFIG_GPIO_BASIC_MMIO) += basic_mmio_gpio.o
11obj-$(CONFIG_GPIO_EP93XX) += gpio-ep93xx.o
11obj-$(CONFIG_GPIO_EXYNOS4) += gpio-exynos4.o 12obj-$(CONFIG_GPIO_EXYNOS4) += gpio-exynos4.o
12obj-$(CONFIG_GPIO_MXC) += gpio-mxc.o 13obj-$(CONFIG_GPIO_MXC) += gpio-mxc.o
13obj-$(CONFIG_GPIO_MXS) += gpio-mxs.o 14obj-$(CONFIG_GPIO_MXS) += gpio-mxs.o
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
new file mode 100644
index 000000000000..415dce37b88c
--- /dev/null
+++ b/drivers/gpio/gpio-ep93xx.c
@@ -0,0 +1,410 @@
1/*
2 * linux/arch/arm/mach-ep93xx/gpio.c
3 *
4 * Generic EP93xx GPIO handling
5 *
6 * Copyright (c) 2008 Ryan Mallon <ryan@bluewatersys.com>
7 *
8 * Based on code originally from:
9 * linux/arch/arm/mach-ep93xx/core.c
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 */
15
16#define pr_fmt(fmt) "ep93xx " KBUILD_MODNAME ": " fmt
17
18#include <linux/init.h>
19#include <linux/module.h>
20#include <linux/seq_file.h>
21#include <linux/io.h>
22#include <linux/gpio.h>
23#include <linux/irq.h>
24
25#include <mach/hardware.h>
26
27/*************************************************************************
28 * Interrupt handling for EP93xx on-chip GPIOs
29 *************************************************************************/
30static unsigned char gpio_int_unmasked[3];
31static unsigned char gpio_int_enabled[3];
32static unsigned char gpio_int_type1[3];
33static unsigned char gpio_int_type2[3];
34static unsigned char gpio_int_debounce[3];
35
36/* Port ordering is: A B F */
37static const u8 int_type1_register_offset[3] = { 0x90, 0xac, 0x4c };
38static const u8 int_type2_register_offset[3] = { 0x94, 0xb0, 0x50 };
39static const u8 eoi_register_offset[3] = { 0x98, 0xb4, 0x54 };
40static const u8 int_en_register_offset[3] = { 0x9c, 0xb8, 0x58 };
41static const u8 int_debounce_register_offset[3] = { 0xa8, 0xc4, 0x64 };
42
43static void ep93xx_gpio_update_int_params(unsigned port)
44{
45 BUG_ON(port > 2);
46
47 __raw_writeb(0, EP93XX_GPIO_REG(int_en_register_offset[port]));
48
49 __raw_writeb(gpio_int_type2[port],
50 EP93XX_GPIO_REG(int_type2_register_offset[port]));
51
52 __raw_writeb(gpio_int_type1[port],
53 EP93XX_GPIO_REG(int_type1_register_offset[port]));
54
55 __raw_writeb(gpio_int_unmasked[port] & gpio_int_enabled[port],
56 EP93XX_GPIO_REG(int_en_register_offset[port]));
57}
58
59static inline void ep93xx_gpio_int_mask(unsigned line)
60{
61 gpio_int_unmasked[line >> 3] &= ~(1 << (line & 7));
62}
63
64static void ep93xx_gpio_int_debounce(unsigned int irq, bool enable)
65{
66 int line = irq_to_gpio(irq);
67 int port = line >> 3;
68 int port_mask = 1 << (line & 7);
69
70 if (enable)
71 gpio_int_debounce[port] |= port_mask;
72 else
73 gpio_int_debounce[port] &= ~port_mask;
74
75 __raw_writeb(gpio_int_debounce[port],
76 EP93XX_GPIO_REG(int_debounce_register_offset[port]));
77}
78
79static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
80{
81 unsigned char status;
82 int i;
83
84 status = __raw_readb(EP93XX_GPIO_A_INT_STATUS);
85 for (i = 0; i < 8; i++) {
86 if (status & (1 << i)) {
87 int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_A(0)) + i;
88 generic_handle_irq(gpio_irq);
89 }
90 }
91
92 status = __raw_readb(EP93XX_GPIO_B_INT_STATUS);
93 for (i = 0; i < 8; i++) {
94 if (status & (1 << i)) {
95 int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_B(0)) + i;
96 generic_handle_irq(gpio_irq);
97 }
98 }
99}
100
101static void ep93xx_gpio_f_irq_handler(unsigned int irq, struct irq_desc *desc)
102{
103 /*
104 * map discontiguous hw irq range to continuous sw irq range:
105 *
106 * IRQ_EP93XX_GPIO{0..7}MUX -> gpio_to_irq(EP93XX_GPIO_LINE_F({0..7})
107 */
108 int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */
109 int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_F(0)) + port_f_idx;
110
111 generic_handle_irq(gpio_irq);
112}
113
114static void ep93xx_gpio_irq_ack(struct irq_data *d)
115{
116 int line = irq_to_gpio(d->irq);
117 int port = line >> 3;
118 int port_mask = 1 << (line & 7);
119
120 if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
121 gpio_int_type2[port] ^= port_mask; /* switch edge direction */
122 ep93xx_gpio_update_int_params(port);
123 }
124
125 __raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
126}
127
128static void ep93xx_gpio_irq_mask_ack(struct irq_data *d)
129{
130 int line = irq_to_gpio(d->irq);
131 int port = line >> 3;
132 int port_mask = 1 << (line & 7);
133
134 if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH)
135 gpio_int_type2[port] ^= port_mask; /* switch edge direction */
136
137 gpio_int_unmasked[port] &= ~port_mask;
138 ep93xx_gpio_update_int_params(port);
139
140 __raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
141}
142
143static void ep93xx_gpio_irq_mask(struct irq_data *d)
144{
145 int line = irq_to_gpio(d->irq);
146 int port = line >> 3;
147
148 gpio_int_unmasked[port] &= ~(1 << (line & 7));
149 ep93xx_gpio_update_int_params(port);
150}
151
152static void ep93xx_gpio_irq_unmask(struct irq_data *d)
153{
154 int line = irq_to_gpio(d->irq);
155 int port = line >> 3;
156
157 gpio_int_unmasked[port] |= 1 << (line & 7);
158 ep93xx_gpio_update_int_params(port);
159}
160
161/*
162 * gpio_int_type1 controls whether the interrupt is level (0) or
163 * edge (1) triggered, while gpio_int_type2 controls whether it
164 * triggers on low/falling (0) or high/rising (1).
165 */
166static int ep93xx_gpio_irq_type(struct irq_data *d, unsigned int type)
167{
168 const int gpio = irq_to_gpio(d->irq);
169 const int port = gpio >> 3;
170 const int port_mask = 1 << (gpio & 7);
171 irq_flow_handler_t handler;
172
173 gpio_direction_input(gpio);
174
175 switch (type) {
176 case IRQ_TYPE_EDGE_RISING:
177 gpio_int_type1[port] |= port_mask;
178 gpio_int_type2[port] |= port_mask;
179 handler = handle_edge_irq;
180 break;
181 case IRQ_TYPE_EDGE_FALLING:
182 gpio_int_type1[port] |= port_mask;
183 gpio_int_type2[port] &= ~port_mask;
184 handler = handle_edge_irq;
185 break;
186 case IRQ_TYPE_LEVEL_HIGH:
187 gpio_int_type1[port] &= ~port_mask;
188 gpio_int_type2[port] |= port_mask;
189 handler = handle_level_irq;
190 break;
191 case IRQ_TYPE_LEVEL_LOW:
192 gpio_int_type1[port] &= ~port_mask;
193 gpio_int_type2[port] &= ~port_mask;
194 handler = handle_level_irq;
195 break;
196 case IRQ_TYPE_EDGE_BOTH:
197 gpio_int_type1[port] |= port_mask;
198 /* set initial polarity based on current input level */
199 if (gpio_get_value(gpio))
200 gpio_int_type2[port] &= ~port_mask; /* falling */
201 else
202 gpio_int_type2[port] |= port_mask; /* rising */
203 handler = handle_edge_irq;
204 break;
205 default:
206 pr_err("failed to set irq type %d for gpio %d\n", type, gpio);
207 return -EINVAL;
208 }
209
210 __irq_set_handler_locked(d->irq, handler);
211
212 gpio_int_enabled[port] |= port_mask;
213
214 ep93xx_gpio_update_int_params(port);
215
216 return 0;
217}
218
219static struct irq_chip ep93xx_gpio_irq_chip = {
220 .name = "GPIO",
221 .irq_ack = ep93xx_gpio_irq_ack,
222 .irq_mask_ack = ep93xx_gpio_irq_mask_ack,
223 .irq_mask = ep93xx_gpio_irq_mask,
224 .irq_unmask = ep93xx_gpio_irq_unmask,
225 .irq_set_type = ep93xx_gpio_irq_type,
226};
227
228void __init ep93xx_gpio_init_irq(void)
229{
230 int gpio_irq;
231
232 for (gpio_irq = gpio_to_irq(0);
233 gpio_irq <= gpio_to_irq(EP93XX_GPIO_LINE_MAX_IRQ); ++gpio_irq) {
234 irq_set_chip_and_handler(gpio_irq, &ep93xx_gpio_irq_chip,
235 handle_level_irq);
236 set_irq_flags(gpio_irq, IRQF_VALID);
237 }
238
239 irq_set_chained_handler(IRQ_EP93XX_GPIO_AB,
240 ep93xx_gpio_ab_irq_handler);
241 irq_set_chained_handler(IRQ_EP93XX_GPIO0MUX,
242 ep93xx_gpio_f_irq_handler);
243 irq_set_chained_handler(IRQ_EP93XX_GPIO1MUX,
244 ep93xx_gpio_f_irq_handler);
245 irq_set_chained_handler(IRQ_EP93XX_GPIO2MUX,
246 ep93xx_gpio_f_irq_handler);
247 irq_set_chained_handler(IRQ_EP93XX_GPIO3MUX,
248 ep93xx_gpio_f_irq_handler);
249 irq_set_chained_handler(IRQ_EP93XX_GPIO4MUX,
250 ep93xx_gpio_f_irq_handler);
251 irq_set_chained_handler(IRQ_EP93XX_GPIO5MUX,
252 ep93xx_gpio_f_irq_handler);
253 irq_set_chained_handler(IRQ_EP93XX_GPIO6MUX,
254 ep93xx_gpio_f_irq_handler);
255 irq_set_chained_handler(IRQ_EP93XX_GPIO7MUX,
256 ep93xx_gpio_f_irq_handler);
257}
258
259
260/*************************************************************************
261 * gpiolib interface for EP93xx on-chip GPIOs
262 *************************************************************************/
263struct ep93xx_gpio_chip {
264 struct gpio_chip chip;
265
266 void __iomem *data_reg;
267 void __iomem *data_dir_reg;
268};
269
270#define to_ep93xx_gpio_chip(c) container_of(c, struct ep93xx_gpio_chip, chip)
271
272static int ep93xx_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
273{
274 struct ep93xx_gpio_chip *ep93xx_chip = to_ep93xx_gpio_chip(chip);
275 unsigned long flags;
276 u8 v;
277
278 local_irq_save(flags);
279 v = __raw_readb(ep93xx_chip->data_dir_reg);
280 v &= ~(1 << offset);
281 __raw_writeb(v, ep93xx_chip->data_dir_reg);
282 local_irq_restore(flags);
283
284 return 0;
285}
286
287static int ep93xx_gpio_direction_output(struct gpio_chip *chip,
288 unsigned offset, int val)
289{
290 struct ep93xx_gpio_chip *ep93xx_chip = to_ep93xx_gpio_chip(chip);
291 unsigned long flags;
292 int line;
293 u8 v;
294
295 local_irq_save(flags);
296
297 /* Set the value */
298 v = __raw_readb(ep93xx_chip->data_reg);
299 if (val)
300 v |= (1 << offset);
301 else
302 v &= ~(1 << offset);
303 __raw_writeb(v, ep93xx_chip->data_reg);
304
305 /* Drive as an output */
306 line = chip->base + offset;
307 if (line <= EP93XX_GPIO_LINE_MAX_IRQ) {
308 /* Ports A/B/F */
309 ep93xx_gpio_int_mask(line);
310 ep93xx_gpio_update_int_params(line >> 3);
311 }
312
313 v = __raw_readb(ep93xx_chip->data_dir_reg);
314 v |= (1 << offset);
315 __raw_writeb(v, ep93xx_chip->data_dir_reg);
316
317 local_irq_restore(flags);
318
319 return 0;
320}
321
322static int ep93xx_gpio_get(struct gpio_chip *chip, unsigned offset)
323{
324 struct ep93xx_gpio_chip *ep93xx_chip = to_ep93xx_gpio_chip(chip);
325
326 return !!(__raw_readb(ep93xx_chip->data_reg) & (1 << offset));
327}
328
329static void ep93xx_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
330{
331 struct ep93xx_gpio_chip *ep93xx_chip = to_ep93xx_gpio_chip(chip);
332 unsigned long flags;
333 u8 v;
334
335 local_irq_save(flags);
336 v = __raw_readb(ep93xx_chip->data_reg);
337 if (val)
338 v |= (1 << offset);
339 else
340 v &= ~(1 << offset);
341 __raw_writeb(v, ep93xx_chip->data_reg);
342 local_irq_restore(flags);
343}
344
345static int ep93xx_gpio_set_debounce(struct gpio_chip *chip,
346 unsigned offset, unsigned debounce)
347{
348 int gpio = chip->base + offset;
349 int irq = gpio_to_irq(gpio);
350
351 if (irq < 0)
352 return -EINVAL;
353
354 ep93xx_gpio_int_debounce(irq, debounce ? true : false);
355
356 return 0;
357}
358
359#define EP93XX_GPIO_BANK(name, dr, ddr, base_gpio) \
360 { \
361 .chip = { \
362 .label = name, \
363 .direction_input = ep93xx_gpio_direction_input, \
364 .direction_output = ep93xx_gpio_direction_output, \
365 .get = ep93xx_gpio_get, \
366 .set = ep93xx_gpio_set, \
367 .base = base_gpio, \
368 .ngpio = 8, \
369 }, \
370 .data_reg = EP93XX_GPIO_REG(dr), \
371 .data_dir_reg = EP93XX_GPIO_REG(ddr), \
372 }
373
374static struct ep93xx_gpio_chip ep93xx_gpio_banks[] = {
375 EP93XX_GPIO_BANK("A", 0x00, 0x10, 0),
376 EP93XX_GPIO_BANK("B", 0x04, 0x14, 8),
377 EP93XX_GPIO_BANK("C", 0x08, 0x18, 40),
378 EP93XX_GPIO_BANK("D", 0x0c, 0x1c, 24),
379 EP93XX_GPIO_BANK("E", 0x20, 0x24, 32),
380 EP93XX_GPIO_BANK("F", 0x30, 0x34, 16),
381 EP93XX_GPIO_BANK("G", 0x38, 0x3c, 48),
382 EP93XX_GPIO_BANK("H", 0x40, 0x44, 56),
383};
384
385void __init ep93xx_gpio_init(void)
386{
387 int i;
388
389 /* Set Ports C, D, E, G, and H for GPIO use */
390 ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_KEYS |
391 EP93XX_SYSCON_DEVCFG_GONK |
392 EP93XX_SYSCON_DEVCFG_EONIDE |
393 EP93XX_SYSCON_DEVCFG_GONIDE |
394 EP93XX_SYSCON_DEVCFG_HONIDE);
395
396 for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) {
397 struct gpio_chip *chip = &ep93xx_gpio_banks[i].chip;
398
399 /*
400 * Ports A, B, and F support input debouncing when
401 * used as interrupts.
402 */
403 if (!strcmp(chip->label, "A") ||
404 !strcmp(chip->label, "B") ||
405 !strcmp(chip->label, "F"))
406 chip->set_debounce = ep93xx_gpio_set_debounce;
407
408 gpiochip_add(chip);
409 }
410}
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index 0451d7ac94ac..63022b17014a 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -493,7 +493,6 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
493 ret = request_threaded_irq(client->irq, 493 ret = request_threaded_irq(client->irq,
494 NULL, 494 NULL,
495 pca953x_irq_handler, 495 pca953x_irq_handler,
496 IRQF_TRIGGER_RISING |
497 IRQF_TRIGGER_FALLING | IRQF_ONESHOT, 496 IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
498 dev_name(&client->dev), chip); 497 dev_name(&client->dev), chip);
499 if (ret) { 498 if (ret) {
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-13 13:27:25 -0500