summaryrefslogtreecommitdiff
path: root/target/device/Atmel/atngw100-expanded/kernel-patches/linux-2.6.24-500-avr32-ac97-reset.patch
blob: eed5f2814a7328afbed99ce4580dd736d78d44bc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
diff --git a/sound/avr32/ac97c.c b/sound/avr32/ac97c.c
index 0ec0b1c..3a58375 100644
--- a/sound/avr32/ac97c.c
+++ b/sound/avr32/ac97c.c
@@ -25,6 +25,8 @@
 #include <sound/ac97_codec.h>
 #include <sound/memalloc.h>
 
+#include <asm/gpio.h>
+#include <asm/arch/board.h>
 #include <asm/dma-controller.h>
 
 #include "ac97c.h"
@@ -37,6 +39,7 @@ struct atmel_ac97_dma_info {
 	struct dma_request_cyclic req_rx;
 	unsigned short rx_periph_id;
 	unsigned short tx_periph_id;
+	unsigned short controller;
 };
 
 struct atmel_ac97 {
@@ -51,6 +54,7 @@ struct atmel_ac97 {
 	struct snd_ac97_bus *ac97_bus;
 	int opened;
 	int period;
+	int reset_pin;
 	u64 cur_format;
 	unsigned int cur_rate;
 	struct clk *mck;
@@ -692,6 +696,12 @@ timed_out:
 
 static void snd_atmel_ac97_reset(struct atmel_ac97 *chip)
 {
+	if (chip->reset_pin >= 0) {
+		gpio_set_value(chip->reset_pin, 0);
+		udelay(5);
+		gpio_set_value(chip->reset_pin, 1);
+	}
+
 	ac97c_writel(chip, MR, AC97C_MR_WRST);
 	mdelay(1);
 	ac97c_writel(chip, MR, AC97C_MR_ENA);
@@ -727,6 +737,7 @@ static int __devinit snd_atmel_ac97_create(struct snd_card *card,
 		.read	= snd_atmel_ac97_read,
 	};
 	struct atmel_ac97 *chip = get_chip(card);
+	struct ac97c_platform_data *pdata;
 	struct resource *regs;
 	struct clk *mck;
 	int err;
@@ -735,6 +746,29 @@ static int __devinit snd_atmel_ac97_create(struct snd_card *card,
 	if (!regs)
 		return -ENXIO;
 
+	pdata = pdev->dev.platform_data;
+	if (pdata) {
+		chip->reset_pin = pdata->reset_pin;
+
+		if (chip->reset_pin >= 0) {
+			if (gpio_request(chip->reset_pin,
+						chip->card->shortname)) {
+				dev_dbg(&pdev->dev,
+						"ac97: reset pin "
+						"not available\n");
+				chip->reset_pin = -1;
+			} else {
+				gpio_direction_output(chip->reset_pin, 1);
+			}
+		}
+
+		chip->dma.rx_periph_id = pdata->dma_rx_periph_id;
+		chip->dma.tx_periph_id = pdata->dma_tx_periph_id;
+		chip->dma.controller = pdata->dma_controller_id;
+	} else {
+		return -ENXIO;
+	}
+
 	mck = clk_get(&pdev->dev, "pclk");
 	if (IS_ERR(mck))
 		return PTR_ERR(mck);
@@ -789,23 +823,19 @@ static int __devinit snd_atmel_ac97_probe(struct platform_device *pdev)
 	if (err)
 		goto out_free_card;
 
-	/* TODO: Get this information from the platform device */
-	chip->dma.req_tx.req.dmac = find_dma_controller(0);
+	chip->dma.req_tx.req.dmac = find_dma_controller(chip->dma.controller);
 	if (!chip->dma.req_tx.req.dmac) {
 		dev_dbg(&chip->pdev->dev, "DMA controller for TX missing\n");
 		err = -ENODEV;
 		goto out_free_card;
 	}
-	chip->dma.req_rx.req.dmac = find_dma_controller(0);
+	chip->dma.req_rx.req.dmac = find_dma_controller(chip->dma.controller);
 	if (!chip->dma.req_rx.req.dmac) {
 		dev_dbg(&chip->pdev->dev, "DMA controller for RX missing\n");
 		err = -ENODEV;
 		goto out_free_card;
 	}
 
-	chip->dma.rx_periph_id = 3;
-	chip->dma.tx_periph_id = 4;
-
 	ch = dma_alloc_channel(chip->dma.req_tx.req.dmac);
 	if (ch < 0) {
 		dev_dbg(&chip->pdev->dev,
-- 
1.5.2.5
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 06795d0..58f3841 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -1552,12 +1552,15 @@ static struct clk atmel_ac97c0_pclk = {
 	.index		= 10,
 };
 
-struct platform_device *__init at32_add_device_ac97c(unsigned int id)
+struct platform_device *__init
+at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data)
 {
 	struct platform_device *pdev;
 
 	if (id != 0)
 		return NULL;
+	if (!data)
+		return NULL;
 
 	pdev = platform_device_alloc("atmel_ac97c", id);
 	if (!pdev)
@@ -1567,10 +1570,17 @@ struct platform_device *__init at32_add_device_ac97c(unsigned int id)
 				ARRAY_SIZE(atmel_ac97c0_resource)))
 		goto err_add_resources;
 
-	select_peripheral(PB(20), PERIPH_B, 0);	/* SYNC	*/
-	select_peripheral(PB(21), PERIPH_B, 0);	/* SDO	*/
-	select_peripheral(PB(22), PERIPH_B, 0);	/* SDI	*/
-	select_peripheral(PB(23), PERIPH_B, 0);	/* SCLK	*/
+	if (platform_device_add_data(pdev, data,
+				sizeof(struct ac97c_platform_data)))
+		goto err_add_resources;
+
+	select_peripheral(PB(20), PERIPH_B, 0);	/* SDO	*/
+	select_peripheral(PB(21), PERIPH_B, 0);	/* SYNC	*/
+	select_peripheral(PB(22), PERIPH_B, 0);	/* SCLK	*/
+	select_peripheral(PB(23), PERIPH_B, 0);	/* SDI	*/
+
+	if (data->reset_pin != GPIO_PIN_NONE)
+		at32_select_gpio(data->reset_pin, 0);
 
 	atmel_ac97c0_pclk.dev = &pdev->dev;
 
diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h
index 8816b66..0386a0e 100644
--- a/include/asm-avr32/arch-at32ap/board.h
+++ b/include/asm-avr32/arch-at32ap/board.h
@@ -76,7 +76,16 @@ struct mci_platform_data {
 };
 struct platform_device *
 at32_add_device_mci(unsigned int id, struct mci_platform_data *data);
-struct platform_device *at32_add_device_ac97c(unsigned int id);
+
+struct ac97c_platform_data {
+	unsigned short dma_rx_periph_id;
+	unsigned short dma_tx_periph_id;
+	unsigned short dma_controller_id;
+	int reset_pin;
+};
+struct platform_device *
+at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data);
+
 struct platform_device *at32_add_device_abdac(unsigned int id);
 
 struct cf_platform_data {
-- 
1.5.2.5
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index 90436fa..eba6f89 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -151,6 +151,15 @@ static void __init set_hw_addr(struct platform_device *pdev)
 	clk_put(pclk);
 }
 
+#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
+static struct ac97c_platform_data __initdata ac97c0_data = {
+	.dma_rx_periph_id	= 3,
+	.dma_tx_periph_id	= 4,
+	.dma_controller_id	= 0,
+	.reset_pin		= GPIO_PIN_NONE,
+};
+#endif
+
 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
 static void __init atstk1002_setup_extdac(void)
 {
@@ -253,7 +262,7 @@ static int __init atstk1002_init(void)
 #endif
 	at32_add_device_usba(0, NULL);
 #ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
-	at32_add_device_ac97c(0);
+	at32_add_device_ac97c(0, &ac97c0_data);
 #else
 	at32_add_device_abdac(0);
 #endif
diff --git a/arch/avr32/boards/atstk1000/atstk1003.c b/arch/avr32/boards/atstk1000/atstk1003.c
index 768d204..2564e3c 100644
--- a/arch/avr32/boards/atstk1000/atstk1003.c
+++ b/arch/avr32/boards/atstk1000/atstk1003.c
@@ -72,6 +72,15 @@ static struct cf_platform_data __initdata cf0_data = {
 	.cs		= 4,
 };
 
+#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
+static struct ac97c_platform_data __initdata ac97c0_data = {
+	.dma_rx_periph_id	= 3,
+	.dma_tx_periph_id	= 4,
+	.dma_controller_id	= 0,
+	.reset_pin		= GPIO_PIN_NONE,
+};
+#endif
+
 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
 static void __init atstk1003_setup_extdac(void)
 {
@@ -164,7 +173,7 @@ static int __init atstk1003_init(void)
 #endif
 	at32_add_device_usba(0, NULL);
 #ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
-	at32_add_device_ac97c(0);
+	at32_add_device_ac97c(0, &ac97c0_data);
 #else
 	at32_add_device_abdac(0);
 #endif
diff --git a/arch/avr32/boards/atstk1000/atstk1004.c b/arch/avr32/boards/atstk1000/atstk1004.c
index 96015dd..3c25a6f 100644
--- a/arch/avr32/boards/atstk1000/atstk1004.c
+++ b/arch/avr32/boards/atstk1000/atstk1004.c
@@ -64,6 +64,15 @@ static struct spi_board_info spi1_board_info[] __initdata = { {
 } };
 #endif
 
+#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
+static struct ac97c_platform_data __initdata ac97c0_data = {
+	.dma_rx_periph_id	= 3,
+	.dma_tx_periph_id	= 4,
+	.dma_controller_id	= 0,
+	.reset_pin		= GPIO_PIN_NONE,
+};
+#endif
+
 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
 static void __init atstk1004_setup_extdac(void)
 {
@@ -136,7 +145,7 @@ static int __init atstk1004_init(void)
 			     fbmem_start, fbmem_size);
 	at32_add_device_usba(0, NULL);
 #ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
-	at32_add_device_ac97c(0);
+	at32_add_device_ac97c(0, &ac97c0_data);
 #else
 	at32_add_device_abdac(0);
 #endif
-- 
1.5.2.5
--- a/arch/avr32/boards/atngw100/setup.c	2008-02-26 12:27:37.000000000 -0500
+++ b/arch/avr32/boards/atngw100/setup.c	2008-02-26 12:26:08.000000000 -0500
@@ -201,6 +201,13 @@ static struct platform_device i2c_gpio_d
 };
 #endif
 
+static struct ac97c_platform_data __initdata ac97c0_data = {
+	.dma_rx_periph_id	= 3,
+	.dma_tx_periph_id	= 4,
+	.dma_controller_id	= 0,
+	.reset_pin		= GPIO_PIN_NONE, // change to whatever pin you want, i.e. GPIO_PIN_PB(18)
+};
+
 static int __init atngw100_init(void)
 {
 	unsigned	i;
@@ -222,7 +229,7 @@ static int __init atngw100_init(void)
 	at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
 	at32_add_device_mci(0, &mci0_data);
 	at32_add_device_usba(0, NULL);
-	at32_add_device_ac97c(0);
+	at32_add_device_ac97c(0, &ac97c0_data);
 
 	for (i = 0; i < ARRAY_SIZE(ngw_leds); i++) {
 		at32_select_gpio(ngw_leds[i].gpio,