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-rw-r--r--arch/arm/plat-omap/dmtimer.c1
-rw-r--r--arch/arm/plat-omap/i2c.c2
-rw-r--r--arch/arm/plat-omap/include/plat/cpu.h17
-rw-r--r--arch/arm/plat-omap/include/plat/dmtimer.h4
-rw-r--r--arch/arm/plat-omap/include/plat/omap-alsa.h123
-rw-r--r--arch/arm/plat-omap/include/plat/omap-pm.h4
-rw-r--r--arch/arm/plat-omap/include/plat/omap_device.h2
-rw-r--r--arch/arm/plat-omap/include/plat/omap_hwmod.h2
-rw-r--r--arch/arm/plat-omap/omap-pm-noop.c24
-rw-r--r--arch/arm/plat-omap/omap_device.c3
10 files changed, 39 insertions, 143 deletions
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 2def4e1990ed..af3b92be8459 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -35,6 +35,7 @@
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/module.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/err.h>
diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c
index 679cbd49c019..db071bc71c4d 100644
--- a/arch/arm/plat-omap/i2c.c
+++ b/arch/arm/plat-omap/i2c.c
@@ -184,7 +184,7 @@ static inline int omap2_i2c_add_bus(int bus_id)
NULL, 0, 0);
WARN(IS_ERR(pdev), "Could not build omap_device for %s\n", name);
- return PTR_ERR(pdev);
+ return PTR_RET(pdev);
}
#else
static inline int omap2_i2c_add_bus(int bus_id)
diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h
index 2f9026942229..408a12f79205 100644
--- a/arch/arm/plat-omap/include/plat/cpu.h
+++ b/arch/arm/plat-omap/include/plat/cpu.h
@@ -399,6 +399,13 @@ void omap2_check_revision(void);
/*
* Runtime detection of OMAP3 features
+ *
+ * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
+ * family have OS-level control over the I/O chain clock. This is
+ * to avoid a window during which wakeups could potentially be lost
+ * during powerdomain transitions. If this bit is set, it
+ * indicates that the chip does support OS-level control of this
+ * feature.
*/
extern u32 omap_features;
@@ -410,9 +417,10 @@ extern u32 omap_features;
#define OMAP3_HAS_192MHZ_CLK BIT(5)
#define OMAP3_HAS_IO_WAKEUP BIT(6)
#define OMAP3_HAS_SDRC BIT(7)
-#define OMAP4_HAS_MPU_1GHZ BIT(8)
-#define OMAP4_HAS_MPU_1_2GHZ BIT(9)
-#define OMAP4_HAS_MPU_1_5GHZ BIT(10)
+#define OMAP3_HAS_IO_CHAIN_CTRL BIT(8)
+#define OMAP4_HAS_MPU_1GHZ BIT(9)
+#define OMAP4_HAS_MPU_1_2GHZ BIT(10)
+#define OMAP4_HAS_MPU_1_5GHZ BIT(11)
#define OMAP3_HAS_FEATURE(feat,flag) \
@@ -429,12 +437,11 @@ OMAP3_HAS_FEATURE(isp, ISP)
OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
OMAP3_HAS_FEATURE(sdrc, SDRC)
+OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
/*
* Runtime detection of OMAP4 features
*/
-extern u32 omap_features;
-
#define OMAP4_HAS_FEATURE(feat, flag) \
static inline unsigned int omap4_has_ ##feat(void) \
{ \
diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h
index d11025e6e7a4..9418f00b6c38 100644
--- a/arch/arm/plat-omap/include/plat/dmtimer.h
+++ b/arch/arm/plat-omap/include/plat/dmtimer.h
@@ -104,7 +104,7 @@ struct dmtimer_platform_data {
bool loses_context;
- u32 (*get_context_loss_count)(struct device *dev);
+ int (*get_context_loss_count)(struct device *dev);
};
struct omap_dm_timer *omap_dm_timer_request(void);
@@ -279,7 +279,7 @@ struct omap_dm_timer {
struct platform_device *pdev;
struct list_head node;
- u32 (*get_context_loss_count)(struct device *dev);
+ int (*get_context_loss_count)(struct device *dev);
};
int omap_dm_timer_prepare(struct omap_dm_timer *timer);
diff --git a/arch/arm/plat-omap/include/plat/omap-alsa.h b/arch/arm/plat-omap/include/plat/omap-alsa.h
deleted file mode 100644
index b53055b390d0..000000000000
--- a/arch/arm/plat-omap/include/plat/omap-alsa.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * arch/arm/plat-omap/include/mach/omap-alsa.h
- *
- * Alsa Driver for AIC23 and TSC2101 codecs on OMAP platform boards.
- *
- * Copyright (C) 2006 Mika Laitio <lamikr@cc.jyu.fi>
- *
- * Copyright (C) 2005 Instituto Nokia de Tecnologia - INdT - Manaus Brazil
- * Written by Daniel Petrini, David Cohen, Anderson Briglia
- * {daniel.petrini, david.cohen, anderson.briglia}@indt.org.br
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * History
- * -------
- *
- * 2005/07/25 INdT-10LE Kernel Team - Alsa driver for omap osk,
- * original version based in sa1100 driver
- * and omap oss driver.
- */
-
-#ifndef __OMAP_ALSA_H
-#define __OMAP_ALSA_H
-
-#include <plat/dma.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <plat/mcbsp.h>
-#include <linux/platform_device.h>
-
-#define DMA_BUF_SIZE (1024 * 8)
-
-/*
- * Buffer management for alsa and dma
- */
-struct audio_stream {
- char *id; /* identification string */
- int stream_id; /* numeric identification */
- int dma_dev; /* dma number of that device */
- int *lch; /* Chain of channels this stream is linked to */
- char started; /* to store if the chain was started or not */
- int dma_q_head; /* DMA Channel Q Head */
- int dma_q_tail; /* DMA Channel Q Tail */
- char dma_q_count; /* DMA Channel Q Count */
- int active:1; /* we are using this stream for transfer now */
- int period; /* current transfer period */
- int periods; /* current count of periods registerd in the DMA engine */
- spinlock_t dma_lock; /* for locking in DMA operations */
- struct snd_pcm_substream *stream; /* the pcm stream */
- unsigned linked:1; /* dma channels linked */
- int offset; /* store start position of the last period in the alsa buffer */
- int (*hw_start)(void); /* interface to start HW interface, e.g. McBSP */
- int (*hw_stop)(void); /* interface to stop HW interface, e.g. McBSP */
-};
-
-/*
- * Alsa card structure for aic23
- */
-struct snd_card_omap_codec {
- struct snd_card *card;
- struct snd_pcm *pcm;
- long samplerate;
- struct audio_stream s[2]; /* playback & capture */
-};
-
-/* Codec specific information and function pointers.
- * Codec (omap-alsa-aic23.c and omap-alsa-tsc2101.c)
- * are responsible for defining the function pointers.
- */
-struct omap_alsa_codec_config {
- char *name;
- struct omap_mcbsp_reg_cfg *mcbsp_regs_alsa;
- struct snd_pcm_hw_constraint_list *hw_constraints_rates;
- struct snd_pcm_hardware *snd_omap_alsa_playback;
- struct snd_pcm_hardware *snd_omap_alsa_capture;
- void (*codec_configure_dev)(void);
- void (*codec_set_samplerate)(long);
- void (*codec_clock_setup)(void);
- int (*codec_clock_on)(void);
- int (*codec_clock_off)(void);
- int (*get_default_samplerate)(void);
-};
-
-/*********** Mixer function prototypes *************************/
-int snd_omap_mixer(struct snd_card_omap_codec *);
-void snd_omap_init_mixer(void);
-
-#ifdef CONFIG_PM
-void snd_omap_suspend_mixer(void);
-void snd_omap_resume_mixer(void);
-#endif
-
-int snd_omap_alsa_post_probe(struct platform_device *pdev, struct omap_alsa_codec_config *config);
-int snd_omap_alsa_remove(struct platform_device *pdev);
-#ifdef CONFIG_PM
-int snd_omap_alsa_suspend(struct platform_device *pdev, pm_message_t state);
-int snd_omap_alsa_resume(struct platform_device *pdev);
-#else
-#define snd_omap_alsa_suspend NULL
-#define snd_omap_alsa_resume NULL
-#endif
-
-void callback_omap_alsa_sound_dma(void *);
-
-#endif
diff --git a/arch/arm/plat-omap/include/plat/omap-pm.h b/arch/arm/plat-omap/include/plat/omap-pm.h
index 0840df813f4f..67faa7b8fe92 100644
--- a/arch/arm/plat-omap/include/plat/omap-pm.h
+++ b/arch/arm/plat-omap/include/plat/omap-pm.h
@@ -342,9 +342,9 @@ unsigned long omap_pm_cpu_get_freq(void);
* driver must restore device context. If the number of context losses
* exceeds the maximum positive integer, the function will wrap to 0 and
* continue counting. Returns the number of context losses for this device,
- * or zero upon error.
+ * or negative value upon error.
*/
-u32 omap_pm_get_dev_context_loss_count(struct device *dev);
+int omap_pm_get_dev_context_loss_count(struct device *dev);
void omap_pm_enable_off_mode(void);
void omap_pm_disable_off_mode(void);
diff --git a/arch/arm/plat-omap/include/plat/omap_device.h b/arch/arm/plat-omap/include/plat/omap_device.h
index 12c5b0c345bf..51423d2727a5 100644
--- a/arch/arm/plat-omap/include/plat/omap_device.h
+++ b/arch/arm/plat-omap/include/plat/omap_device.h
@@ -107,7 +107,7 @@ struct device *omap_device_get_by_hwmod_name(const char *oh_name);
int omap_device_align_pm_lat(struct platform_device *pdev,
u32 new_wakeup_lat_limit);
struct powerdomain *omap_device_get_pwrdm(struct omap_device *od);
-u32 omap_device_get_context_loss_count(struct platform_device *pdev);
+int omap_device_get_context_loss_count(struct platform_device *pdev);
/* Other */
diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h
index 5419f1a2aaa4..8b372ede17c1 100644
--- a/arch/arm/plat-omap/include/plat/omap_hwmod.h
+++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h
@@ -600,7 +600,7 @@ int omap_hwmod_for_each_by_class(const char *classname,
void *user);
int omap_hwmod_set_postsetup_state(struct omap_hwmod *oh, u8 state);
-u32 omap_hwmod_get_context_loss_count(struct omap_hwmod *oh);
+int omap_hwmod_get_context_loss_count(struct omap_hwmod *oh);
int omap_hwmod_no_setup_reset(struct omap_hwmod *oh);
diff --git a/arch/arm/plat-omap/omap-pm-noop.c b/arch/arm/plat-omap/omap-pm-noop.c
index b0471bb2d47d..3dc3801aace4 100644
--- a/arch/arm/plat-omap/omap-pm-noop.c
+++ b/arch/arm/plat-omap/omap-pm-noop.c
@@ -27,7 +27,7 @@
#include <plat/omap_device.h>
static bool off_mode_enabled;
-static u32 dummy_context_loss_counter;
+static int dummy_context_loss_counter;
/*
* Device-driver-originated constraints (via board-*.c files)
@@ -311,22 +311,32 @@ void omap_pm_disable_off_mode(void)
#ifdef CONFIG_ARCH_OMAP2PLUS
-u32 omap_pm_get_dev_context_loss_count(struct device *dev)
+int omap_pm_get_dev_context_loss_count(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
- u32 count;
+ int count;
if (WARN_ON(!dev))
- return 0;
+ return -ENODEV;
if (dev->parent == &omap_device_parent) {
count = omap_device_get_context_loss_count(pdev);
} else {
WARN_ONCE(off_mode_enabled, "omap_pm: using dummy context loss counter; device %s should be converted to omap_device",
dev_name(dev));
- if (off_mode_enabled)
- dummy_context_loss_counter++;
+
count = dummy_context_loss_counter;
+
+ if (off_mode_enabled) {
+ count++;
+ /*
+ * Context loss count has to be a non-negative value.
+ * Clear the sign bit to get a value range from 0 to
+ * INT_MAX.
+ */
+ count &= INT_MAX;
+ dummy_context_loss_counter = count;
+ }
}
pr_debug("OMAP PM: context loss count for dev %s = %d\n",
@@ -337,7 +347,7 @@ u32 omap_pm_get_dev_context_loss_count(struct device *dev)
#else
-u32 omap_pm_get_dev_context_loss_count(struct device *dev)
+int omap_pm_get_dev_context_loss_count(struct device *dev)
{
return dummy_context_loss_counter;
}
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index cd90bedd9306..e8d98693d2dd 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -78,6 +78,7 @@
#undef DEBUG
#include <linux/kernel.h>
+#include <linux/export.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/err.h>
@@ -426,7 +427,7 @@ static int _omap_device_notifier_call(struct notifier_block *nb,
* return the context loss counter for that hwmod, otherwise return
* zero.
*/
-u32 omap_device_get_context_loss_count(struct platform_device *pdev)
+int omap_device_get_context_loss_count(struct platform_device *pdev)
{
struct omap_device *od;
u32 ret = 0;