summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorPetter Mabäcker <petter@technux.se>2015-05-08 23:49:03 +0200
committerAndrei Gherzan <andrei@gherzan.ro>2015-05-18 00:48:49 +0200
commite1c5efc658c34ba97869032cf891168e4124ffbe (patch)
tree489a7d091ada4ff84e639c5c0b4c0b8470425efa
parentc9f29df249b80ab488e4ea6eddc01a6522a28c09 (diff)
downloadmeta-raspberrypi-e1c5efc658c34ba97869032cf891168e4124ffbe.tar.gz
linux-raspberrypi: Add 3.14 support
Add basic support for Linux 3.14, cherry-pick changes from 3.18.y in order to solve some debugfs warnings and get better support for i2s for BCM2708. - 3.14 lacks BCM2709 support and will not by default be able to use for raspberry pi 2. Below warnings still exists they are harmless and exists due to that snd_soc_pcm512x is triggered to be loaded twice. The problem is solved after device tree support for the driver was introduced in 3.18.y and no easy solution exists to solve this problem on older kernel versions (see https://github.com/raspberrypi/linux/issues/662 for more info). pcm512x 1-004c: Failed to reset device: -5 pcm512x: probe of 1-004c failed with error Remove sl030raspberrypii2ckernel.patch since it will not apply anymore and its content seems to be obsolite after cherry-picking '558d0bf Fix grabbing lock from atomic context in i2c driver'. [Support #57] Signed-off-by: Petter Mabäcker <petter@technux.se> Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
Diffstat
-rw-r--r--recipes-kernel/linux/linux-raspberrypi/0001-ASoC-Add-BCM2708-fixes.patch263
-rw-r--r--recipes-kernel/linux/linux-raspberrypi/0002-Fix-grabbing-lock-from-atomic-context-in-i2c-driver.patch235
-rw-r--r--recipes-kernel/linux/linux-raspberrypi_3.14.bb9
3 files changed, 507 insertions, 0 deletions
diff --git a/recipes-kernel/linux/linux-raspberrypi/0001-ASoC-Add-BCM2708-fixes.patch b/recipes-kernel/linux/linux-raspberrypi/0001-ASoC-Add-BCM2708-fixes.patch
new file mode 100644
index 0000000..26c71b8
--- /dev/null
+++ b/recipes-kernel/linux/linux-raspberrypi/0001-ASoC-Add-BCM2708-fixes.patch
@@ -0,0 +1,263 @@
1From e73a69601c65103b0e032e6093af0f00a1e1af3a Mon Sep 17 00:00:00 2001
2From: Florian Meier <florian.meier@koalo.de>
3Date: Fri, 22 Nov 2013 14:33:38 +0100
4Subject: [PATCH 1/2] ASoC: Add BCM2708 fixes
5MIME-Version: 1.0
6Content-Type: text/plain; charset=UTF-8
7Content-Transfer-Encoding: 8bit
8
9(cherry-pick remaining parts of
10730cb8a1216f9da3d097072cd9bb06e0db348172)
11
12bcm2708-i2s: Update bclk_ratio to more correct values
13
14Move GPIO setup to hw_params.
15
16This is used to stop the I2S driver from breaking
17the GPIO setup for other uses of the PCM interface
18
19Configure GPIOs for I2S based on revision/card settings
20
21With RPi model B+, assignment of the I2S GPIO pins has changed.
22This patch uses the board revision to auto-detect the GPIOs used
23for I2S. It also allows sound card drivers to set the GPIOs that
24should be used. This is especially important with the Compute
25Module.
26
27bcm2708-i2s: Avoid leak from iomap when accessing gpio
28
29bcm2708: Eliminate i2s debugfs directory error
30
31Qualify the two regmap ranges uses by bcm2708-i2s ('-i2s' and '-clk')
32to avoid the name clash when registering debugfs entries.
33
34Upstream-Status: Pending
35
36Signed-off-by: Petter Mabäcker <petter@technux.se>
37
38Conflicts:
39 sound/soc/bcm/Kconfig
40 sound/soc/bcm/Makefile
41 sound/soc/bcm/bcm2708-i2s.c
42---
43 sound/soc/bcm/bcm2708-i2s.c | 82 ++++++++++++++++++++++++++++++++++++---------
44 sound/soc/bcm/bcm2708-i2s.h | 35 +++++++++++++++++++
45 2 files changed, 102 insertions(+), 15 deletions(-)
46 create mode 100644 sound/soc/bcm/bcm2708-i2s.h
47
48diff --git a/sound/soc/bcm/bcm2708-i2s.c b/sound/soc/bcm/bcm2708-i2s.c
49index 9976571..3fcb740 100644
50--- a/sound/soc/bcm/bcm2708-i2s.c
51+++ b/sound/soc/bcm/bcm2708-i2s.c
52@@ -31,6 +31,8 @@
53 * General Public License for more details.
54 */
55
56+#include "bcm2708-i2s.h"
57+
58 #include <linux/init.h>
59 #include <linux/module.h>
60 #include <linux/device.h>
61@@ -38,6 +40,7 @@
62 #include <linux/delay.h>
63 #include <linux/io.h>
64 #include <linux/clk.h>
65+#include <mach/gpio.h>
66
67 #include <sound/core.h>
68 #include <sound/pcm.h>
69@@ -46,6 +49,8 @@
70 #include <sound/soc.h>
71 #include <sound/dmaengine_pcm.h>
72
73+#include <asm/system_info.h>
74+
75 /* Clock registers */
76 #define BCM2708_CLK_PCMCTL_REG 0x00
77 #define BCM2708_CLK_PCMDIV_REG 0x04
78@@ -163,6 +168,9 @@ static const unsigned int bcm2708_clk_freq[BCM2708_CLK_SRC_HDMI+1] = {
79 #define BCM2708_DMA_DREQ_PCM_TX 2
80 #define BCM2708_DMA_DREQ_PCM_RX 3
81
82+/* I2S pin configuration */
83+static int bcm2708_i2s_gpio=BCM2708_I2S_GPIO_AUTO;
84+
85 /* General device struct */
86 struct bcm2708_i2s_dev {
87 struct device *dev;
88@@ -174,6 +182,12 @@ struct bcm2708_i2s_dev {
89 struct regmap *clk_regmap;
90 };
91
92+void bcm2708_i2s_set_gpio(int gpio) {
93+ bcm2708_i2s_gpio=gpio;
94+}
95+EXPORT_SYMBOL(bcm2708_i2s_set_gpio);
96+
97+
98 static void bcm2708_i2s_start_clock(struct bcm2708_i2s_dev *dev)
99 {
100 /* Start the clock if in master mode */
101@@ -306,6 +320,25 @@ static int bcm2708_i2s_set_dai_bclk_ratio(struct snd_soc_dai *dai,
102 }
103
104
105+static int bcm2708_i2s_set_function(unsigned offset, int function)
106+{
107+ #define GPIOFSEL(x) (0x00+(x)*4)
108+ void __iomem *gpio = __io_address(GPIO_BASE);
109+ unsigned alt = function <= 3 ? function + 4: function == 4 ? 3 : 2;
110+ unsigned gpiodir;
111+ unsigned gpio_bank = offset / 10;
112+ unsigned gpio_field_offset = (offset - 10 * gpio_bank) * 3;
113+
114+ if (offset >= BCM2708_NR_GPIOS)
115+ return -EINVAL;
116+
117+ gpiodir = readl(gpio + GPIOFSEL(gpio_bank));
118+ gpiodir &= ~(7 << gpio_field_offset);
119+ gpiodir |= alt << gpio_field_offset;
120+ writel(gpiodir, gpio + GPIOFSEL(gpio_bank));
121+ return 0;
122+}
123+
124 static void bcm2708_i2s_setup_gpio(void)
125 {
126 /*
127@@ -314,20 +347,37 @@ static void bcm2708_i2s_setup_gpio(void)
128 * TODO Better way would be to handle
129 * this in the device tree!
130 */
131-#define INP_GPIO(g) *(gpio+((g)/10)) &= ~(7<<(((g)%10)*3))
132-#define SET_GPIO_ALT(g,a) *(gpio+(((g)/10))) |= (((a)<=3?(a)+4:(a)==4?3:2)<<(((g)%10)*3))
133+ int pin,pinconfig,startpin,alt;
134+
135+ /* SPI is on different GPIOs on different boards */
136+ /* for Raspberry Pi B+, this is pin GPIO18-21, for original on 28-31 */
137+ if (bcm2708_i2s_gpio==BCM2708_I2S_GPIO_AUTO) {
138+ if ((system_rev & 0xffffff) >= 0x10) {
139+ /* Model B+ */
140+ pinconfig=BCM2708_I2S_GPIO_PIN18;
141+ } else {
142+ /* original */
143+ pinconfig=BCM2708_I2S_GPIO_PIN28;
144+ }
145+ } else {
146+ pinconfig=bcm2708_i2s_gpio;
147+ }
148
149- unsigned int *gpio;
150- int pin;
151- gpio = ioremap(GPIO_BASE, SZ_16K);
152+ if (pinconfig==BCM2708_I2S_GPIO_PIN18) {
153+ startpin=18;
154+ alt=BCM2708_I2S_GPIO_PIN18_ALT;
155+ } else if (pinconfig==BCM2708_I2S_GPIO_PIN28) {
156+ startpin=28;
157+ alt=BCM2708_I2S_GPIO_PIN28_ALT;
158+ } else {
159+ printk(KERN_INFO "Can't configure I2S GPIOs, unknown pin mode for I2S: %i\n",pinconfig);
160+ return;
161+ }
162
163- /* SPI is on GPIO 7..11 */
164- for (pin = 28; pin <= 31; pin++) {
165- INP_GPIO(pin); /* set mode to GPIO input first */
166- SET_GPIO_ALT(pin, 2); /* set mode to ALT 0 */
167+ /* configure I2S pins to correct ALT mode */
168+ for (pin = startpin; pin <= startpin+3; pin++) {
169+ bcm2708_i2s_set_function(pin, alt);
170 }
171-#undef INP_GPIO
172-#undef SET_GPIO_ALT
173 }
174
175 static int bcm2708_i2s_hw_params(struct snd_pcm_substream *substream,
176@@ -372,15 +422,15 @@ static int bcm2708_i2s_hw_params(struct snd_pcm_substream *substream,
177 switch (params_format(params)) {
178 case SNDRV_PCM_FORMAT_S16_LE:
179 data_length = 16;
180- bclk_ratio = 40;
181+ bclk_ratio = 50;
182 break;
183 case SNDRV_PCM_FORMAT_S24_LE:
184 data_length = 24;
185- bclk_ratio = 40;
186+ bclk_ratio = 50;
187 break;
188 case SNDRV_PCM_FORMAT_S32_LE:
189 data_length = 32;
190- bclk_ratio = 80;
191+ bclk_ratio = 100;
192 break;
193 default:
194 return -EINVAL;
195@@ -746,7 +796,7 @@ static struct snd_soc_dai_driver bcm2708_i2s_dai = {
196 .channels_max = 2,
197 .rates = SNDRV_PCM_RATE_8000_192000,
198 .formats = SNDRV_PCM_FMTBIT_S16_LE
199- // | SNDRV_PCM_FMTBIT_S24_LE : disable for now, it causes white noise with xbmc
200+ | SNDRV_PCM_FMTBIT_S24_LE
201 | SNDRV_PCM_FMTBIT_S32_LE
202 },
203 .capture = {
204@@ -803,6 +853,7 @@ static const struct regmap_config bcm2708_regmap_config[] = {
205 .precious_reg = bcm2708_i2s_precious_reg,
206 .volatile_reg = bcm2708_i2s_volatile_reg,
207 .cache_type = REGCACHE_RBTREE,
208+ .name = "i2s",
209 },
210 {
211 .reg_bits = 32,
212@@ -811,6 +862,7 @@ static const struct regmap_config bcm2708_regmap_config[] = {
213 .max_register = BCM2708_CLK_PCMDIV_REG,
214 .volatile_reg = bcm2708_clk_volatile_reg,
215 .cache_type = REGCACHE_RBTREE,
216+ .name = "clk",
217 },
218 };
219
220diff --git a/sound/soc/bcm/bcm2708-i2s.h b/sound/soc/bcm/bcm2708-i2s.h
221new file mode 100644
222index 0000000..94fed6a
223--- /dev/null
224+++ b/sound/soc/bcm/bcm2708-i2s.h
225@@ -0,0 +1,35 @@
226+/*
227+ * I2S configuration for sound cards.
228+ *
229+ * Copyright (c) 2014 Daniel Matuschek <daniel@hifiberry.com>
230+ *
231+ * This program is free software; you can redistribute it and/or modify
232+ * it under the terms of the GNU General Public License as published by
233+ * the Free Software Foundation; either version 2 of the License, or
234+ * (at your option) any later version.
235+ *
236+ * This program is distributed in the hope that it will be useful,
237+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
238+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
239+ * GNU General Public License for more details.
240+ *
241+ * You should have received a copy of the GNU General Public License
242+ * along with this program; if not, write to the Free Software
243+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
244+ */
245+
246+#ifndef BCM2708_I2S_H
247+#define BCM2708_I2S_H
248+
249+/* I2S pin assignment */
250+#define BCM2708_I2S_GPIO_AUTO 0
251+#define BCM2708_I2S_GPIO_PIN18 1
252+#define BCM2708_I2S_GPIO_PIN28 2
253+
254+/* Alt mode to enable I2S */
255+#define BCM2708_I2S_GPIO_PIN18_ALT 0
256+#define BCM2708_I2S_GPIO_PIN28_ALT 2
257+
258+extern void bcm2708_i2s_set_gpio(int gpio);
259+
260+#endif
261--
2621.9.1
263
diff --git a/recipes-kernel/linux/linux-raspberrypi/0002-Fix-grabbing-lock-from-atomic-context-in-i2c-driver.patch b/recipes-kernel/linux/linux-raspberrypi/0002-Fix-grabbing-lock-from-atomic-context-in-i2c-driver.patch
new file mode 100644
index 0000000..907ed7b
--- /dev/null
+++ b/recipes-kernel/linux/linux-raspberrypi/0002-Fix-grabbing-lock-from-atomic-context-in-i2c-driver.patch
@@ -0,0 +1,235 @@
1From 2c84355bf200f4d19d7078dee2c63011ad715395 Mon Sep 17 00:00:00 2001
2From: jeanleflambeur <catalin.vasile@gmail.com>
3Date: Sun, 1 Feb 2015 12:35:38 +0100
4Subject: [PATCH 2/2] Fix grabbing lock from atomic context in i2c driver
5MIME-Version: 1.0
6Content-Type: text/plain; charset=UTF-8
7Content-Transfer-Encoding: 8bit
8
9(cherry-pick from 558d0bfc8fe80ccdccee7f03e881a80965ec987c)
10
112 main changes:
12- check for timeouts in the bcm2708_bsc_setup function as indicated by this comment:
13 /* poll for transfer start bit (should only take 1-20 polls) */
14 This implies that the setup function can now fail so account for this everywhere it's called
15- Removed the clk_get_rate call from inside the setup function as it locks a mutex and that's not ok since we call it from under a spin lock.
16
17removed dead code and update comment
18
19fixed typo in comment
20
21Upstream-Status: Pending
22
23Signed-off-by: Petter Mabäcker <petter@technux.se>
24
25Conflicts:
26 drivers/i2c/busses/i2c-bcm2708.c
27---
28 drivers/i2c/busses/i2c-bcm2708.c | 88 +++++++++++++++++++++++++++++-----------
29 1 file changed, 65 insertions(+), 23 deletions(-)
30
31diff --git a/drivers/i2c/busses/i2c-bcm2708.c b/drivers/i2c/busses/i2c-bcm2708.c
32index 05531db..886672c 100644
33--- a/drivers/i2c/busses/i2c-bcm2708.c
34+++ b/drivers/i2c/busses/i2c-bcm2708.c
35@@ -67,6 +67,7 @@
36 #define BSC_S_TA 0x00000001
37
38 #define I2C_TIMEOUT_MS 150
39+#define I2C_WAIT_LOOP_COUNT 40
40
41 #define DRV_NAME "bcm2708_i2c"
42
43@@ -85,6 +86,7 @@ struct bcm2708_i2c {
44 void __iomem *base;
45 int irq;
46 struct clk *clk;
47+ u32 cdiv;
48
49 struct completion done;
50
51@@ -108,10 +110,10 @@ static void bcm2708_i2c_init_pinmode(int id)
52 int pin;
53 u32 *gpio = ioremap(0x20200000, SZ_16K);
54
55- BUG_ON(id != 0 && id != 1);
56+ BUG_ON(id != 0 && id != 1);
57 /* BSC0 is on GPIO 0 & 1, BSC1 is on GPIO 2 & 3 */
58 for (pin = id*2+0; pin <= id*2+1; pin++) {
59-printk("bcm2708_i2c_init_pinmode(%d,%d)\n", id, pin);
60+ printk("bcm2708_i2c_init_pinmode(%d,%d)\n", id, pin);
61 INP_GPIO(pin); /* set mode to GPIO input first */
62 SET_GPIO_ALT(pin, 0); /* set mode to ALT 0 */
63 }
64@@ -150,16 +152,16 @@ static inline void bcm2708_bsc_fifo_fill(struct bcm2708_i2c *bi)
65 bcm2708_wr(bi, BSC_FIFO, bi->msg->buf[bi->pos++]);
66 }
67
68-static inline void bcm2708_bsc_setup(struct bcm2708_i2c *bi)
69+static inline int bcm2708_bsc_setup(struct bcm2708_i2c *bi)
70 {
71- unsigned long bus_hz;
72 u32 cdiv, s;
73 u32 c = BSC_C_I2CEN | BSC_C_INTD | BSC_C_ST | BSC_C_CLEAR_1;
74+ int wait_loops = I2C_WAIT_LOOP_COUNT;
75
76- bus_hz = clk_get_rate(bi->clk);
77- cdiv = bus_hz / baudrate;
78- if (cdiv > 0xffff)
79- cdiv = 0xffff;
80+ /* Can't call clk_get_rate as it locks a mutex and here we are spinlocked.
81+ * Use the value that we cached in the probe.
82+ */
83+ cdiv = bi->cdiv;
84
85 if (bi->msg->flags & I2C_M_RD)
86 c |= BSC_C_INTR | BSC_C_READ;
87@@ -176,17 +178,25 @@ static inline void bcm2708_bsc_setup(struct bcm2708_i2c *bi)
88 - Both messages to same slave address
89 - Write message can fit inside FIFO (16 bytes or less) */
90 if ( (bi->nmsgs > 1) &&
91- !(bi->msg[0].flags & I2C_M_RD) && (bi->msg[1].flags & I2C_M_RD) &&
92- (bi->msg[0].addr == bi->msg[1].addr) && (bi->msg[0].len <= 16)) {
93+ !(bi->msg[0].flags & I2C_M_RD) && (bi->msg[1].flags & I2C_M_RD) &&
94+ (bi->msg[0].addr == bi->msg[1].addr) && (bi->msg[0].len <= 16)) {
95 /* Fill FIFO with entire write message (16 byte FIFO) */
96- while (bi->pos < bi->msg->len)
97+ while (bi->pos < bi->msg->len) {
98 bcm2708_wr(bi, BSC_FIFO, bi->msg->buf[bi->pos++]);
99+ }
100 /* Start write transfer (no interrupts, don't clear FIFO) */
101 bcm2708_wr(bi, BSC_C, BSC_C_I2CEN | BSC_C_ST);
102+
103 /* poll for transfer start bit (should only take 1-20 polls) */
104 do {
105 s = bcm2708_rd(bi, BSC_S);
106- } while (!(s & (BSC_S_TA | BSC_S_ERR | BSC_S_CLKT | BSC_S_DONE)));
107+ } while (!(s & (BSC_S_TA | BSC_S_ERR | BSC_S_CLKT | BSC_S_DONE)) && --wait_loops >= 0);
108+
109+ /* did we time out or some error occured? */
110+ if (wait_loops < 0 || (s & (BSC_S_ERR | BSC_S_CLKT))) {
111+ return -1;
112+ }
113+
114 /* Send next read message before the write transfer finishes. */
115 bi->nmsgs--;
116 bi->msg++;
117@@ -196,6 +206,8 @@ static inline void bcm2708_bsc_setup(struct bcm2708_i2c *bi)
118 }
119 }
120 bcm2708_wr(bi, BSC_C, c);
121+
122+ return 0;
123 }
124
125 static irqreturn_t bcm2708_i2c_interrupt(int irq, void *dev_id)
126@@ -203,13 +215,15 @@ static irqreturn_t bcm2708_i2c_interrupt(int irq, void *dev_id)
127 struct bcm2708_i2c *bi = dev_id;
128 bool handled = true;
129 u32 s;
130+ int ret;
131
132 spin_lock(&bi->lock);
133
134 /* we may see camera interrupts on the "other" I2C channel
135- Just return if we've not sent anything */
136- if (!bi->nmsgs || !bi->msg )
137+ Just return if we've not sent anything */
138+ if (!bi->nmsgs || !bi->msg) {
139 goto early_exit;
140+ }
141
142 s = bcm2708_rd(bi, BSC_S);
143
144@@ -217,13 +231,16 @@ static irqreturn_t bcm2708_i2c_interrupt(int irq, void *dev_id)
145 bcm2708_bsc_reset(bi);
146 bi->error = true;
147
148+ bi->msg = 0; /* to inform the that all work is done */
149+ bi->nmsgs = 0;
150 /* wake up our bh */
151 complete(&bi->done);
152 } else if (s & BSC_S_DONE) {
153 bi->nmsgs--;
154
155- if (bi->msg->flags & I2C_M_RD)
156+ if (bi->msg->flags & I2C_M_RD) {
157 bcm2708_bsc_fifo_drain(bi);
158+ }
159
160 bcm2708_bsc_reset(bi);
161
162@@ -231,8 +248,19 @@ static irqreturn_t bcm2708_i2c_interrupt(int irq, void *dev_id)
163 /* advance to next message */
164 bi->msg++;
165 bi->pos = 0;
166- bcm2708_bsc_setup(bi);
167+ ret = bcm2708_bsc_setup(bi);
168+ if (ret < 0) {
169+ bcm2708_bsc_reset(bi);
170+ bi->error = true;
171+ bi->msg = 0; /* to inform the that all work is done */
172+ bi->nmsgs = 0;
173+ /* wake up our bh */
174+ complete(&bi->done);
175+ goto early_exit;
176+ }
177 } else {
178+ bi->msg = 0; /* to inform the that all work is done */
179+ bi->nmsgs = 0;
180 /* wake up our bh */
181 complete(&bi->done);
182 }
183@@ -265,21 +293,34 @@ static int bcm2708_i2c_master_xfer(struct i2c_adapter *adap,
184 bi->nmsgs = num;
185 bi->error = false;
186
187+ ret = bcm2708_bsc_setup(bi);
188 spin_unlock_irqrestore(&bi->lock, flags);
189
190 bcm2708_bsc_setup(bi);
191
192- ret = wait_for_completion_timeout(&bi->done,
193- msecs_to_jiffies(I2C_TIMEOUT_MS));
194+ /* check the result of the setup */
195+ if (ret < 0)
196+ {
197+ dev_err(&adap->dev, "transfer setup timed out\n");
198+ goto error_timeout;
199+ }
200+
201+ ret = wait_for_completion_timeout(&bi->done, msecs_to_jiffies(I2C_TIMEOUT_MS));
202 if (ret == 0) {
203 dev_err(&adap->dev, "transfer timed out\n");
204- spin_lock_irqsave(&bi->lock, flags);
205- bcm2708_bsc_reset(bi);
206- spin_unlock_irqrestore(&bi->lock, flags);
207- return -ETIMEDOUT;
208+ goto error_timeout;
209 }
210
211- return bi->error ? -EIO : num;
212+ ret = bi->error ? -EIO : num;
213+ return ret;
214+
215+error_timeout:
216+ spin_lock_irqsave(&bi->lock, flags);
217+ bcm2708_bsc_reset(bi);
218+ bi->msg = 0; /* to inform the interrupt handler that there's nothing else to be done */
219+ bi->nmsgs = 0;
220+ spin_unlock_irqrestore(&bi->lock, flags);
221+ return -ETIMEDOUT;
222 }
223
224 static u32 bcm2708_i2c_functionality(struct i2c_adapter *adap)
225@@ -382,6 +423,7 @@ static int bcm2708_i2c_probe(struct platform_device *pdev)
226 cdiv = 0xffff;
227 baudrate = bus_hz / cdiv;
228 }
229+ bi->cdiv = cdiv;
230
231 dev_info(&pdev->dev, "BSC%d Controller at 0x%08lx (irq %d) (baudrate %d)\n",
232 pdev->id, (unsigned long)regs->start, irq, baudrate);
233--
2341.9.1
235
diff --git a/recipes-kernel/linux/linux-raspberrypi_3.14.bb b/recipes-kernel/linux/linux-raspberrypi_3.14.bb
new file mode 100644
index 0000000..2edba32
--- /dev/null
+++ b/recipes-kernel/linux/linux-raspberrypi_3.14.bb
@@ -0,0 +1,9 @@
1LINUX_VERSION ?= "3.14.28"
2
3SRCREV = "e294028d7733a30f3befacc41d473c251096a515"
4SRC_URI = "git://github.com/raspberrypi/linux.git;protocol=git;branch=rpi-3.14.y \
5 file://0001-ASoC-Add-BCM2708-fixes.patch \
6 file://0002-Fix-grabbing-lock-from-atomic-context-in-i2c-driver.patch \
7 "
8
9require linux-raspberrypi.inc
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-07-07 13:04:48 +0000