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spi: fsl-(e)spi: migrate to generic master queueing

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Migrates the fsl-(e)spi driver to use the generic master queuing.
Avoids the "master is unqueued, this is deprecated" warning.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Heiner Kallweit 2014-12-03 07:56:17 +01:00 committed by Mark Brown
parent f114040e3e
commit c592becbe7
4 changed files with 14 additions and 82 deletions
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13
drivers/spi/spi-fsl-espi.c
View file

@ -411,7 +411,8 @@ static void fsl_espi_rw_trans(struct spi_message *m,
kfree(local_buf);
}
static void fsl_espi_do_one_msg(struct spi_message *m)
static int fsl_espi_do_one_msg(struct spi_master *master,
struct spi_message *m)
{
struct spi_transfer *t;
u8 *rx_buf = NULL;
@ -441,8 +442,8 @@ static void fsl_espi_do_one_msg(struct spi_message *m)
m->actual_length = espi_trans.actual_length;
m->status = espi_trans.status;
if (m->complete)
m->complete(m->context);
spi_finalize_current_message(master);
return 0;
}
static int fsl_espi_setup(struct spi_device *spi)
@ -607,16 +608,14 @@ static struct spi_master * fsl_espi_probe(struct device *dev,
dev_set_drvdata(dev, master);
ret = mpc8xxx_spi_probe(dev, mem, irq);
if (ret)
goto err_probe;
mpc8xxx_spi_probe(dev, mem, irq);
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 16);
master->setup = fsl_espi_setup;
master->cleanup = fsl_espi_cleanup;
master->transfer_one_message = fsl_espi_do_one_msg;
mpc8xxx_spi = spi_master_get_devdata(master);
mpc8xxx_spi->spi_do_one_msg = fsl_espi_do_one_msg;
mpc8xxx_spi->spi_remove = fsl_espi_remove;
mpc8xxx_spi->reg_base = ioremap(mem->start, resource_size(mem));

59
drivers/spi/spi-fsl-lib.c
View file

@ -61,44 +61,6 @@ struct mpc8xxx_spi_probe_info *to_of_pinfo(struct fsl_spi_platform_data *pdata)
return container_of(pdata, struct mpc8xxx_spi_probe_info, pdata);
}
static void mpc8xxx_spi_work(struct work_struct *work)
{
struct mpc8xxx_spi *mpc8xxx_spi = container_of(work, struct mpc8xxx_spi,
work);
spin_lock_irq(&mpc8xxx_spi->lock);
while (!list_empty(&mpc8xxx_spi->queue)) {
struct spi_message *m = container_of(mpc8xxx_spi->queue.next,
struct spi_message, queue);
list_del_init(&m->queue);
spin_unlock_irq(&mpc8xxx_spi->lock);
if (mpc8xxx_spi->spi_do_one_msg)
mpc8xxx_spi->spi_do_one_msg(m);
spin_lock_irq(&mpc8xxx_spi->lock);
}
spin_unlock_irq(&mpc8xxx_spi->lock);
}
int mpc8xxx_spi_transfer(struct spi_device *spi,
struct spi_message *m)
{
struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(spi->master);
unsigned long flags;
m->actual_length = 0;
m->status = -EINPROGRESS;
spin_lock_irqsave(&mpc8xxx_spi->lock, flags);
list_add_tail(&m->queue, &mpc8xxx_spi->queue);
queue_work(mpc8xxx_spi->workqueue, &mpc8xxx_spi->work);
spin_unlock_irqrestore(&mpc8xxx_spi->lock, flags);
return 0;
}
const char *mpc8xxx_spi_strmode(unsigned int flags)
{
if (flags & SPI_QE_CPU_MODE) {
@ -114,13 +76,12 @@ const char *mpc8xxx_spi_strmode(unsigned int flags)
return "CPU";
}
int mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
void mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
unsigned int irq)
{
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct spi_master *master;
struct mpc8xxx_spi *mpc8xxx_spi;
int ret = 0;
master = dev_get_drvdata(dev);
@ -128,7 +89,6 @@ int mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH
| SPI_LSB_FIRST | SPI_LOOP;
master->transfer = mpc8xxx_spi_transfer;
master->dev.of_node = dev->of_node;
mpc8xxx_spi = spi_master_get_devdata(master);
@ -147,22 +107,7 @@ int mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
master->bus_num = pdata->bus_num;
master->num_chipselect = pdata->max_chipselect;
spin_lock_init(&mpc8xxx_spi->lock);
init_completion(&mpc8xxx_spi->done);
INIT_WORK(&mpc8xxx_spi->work, mpc8xxx_spi_work);
INIT_LIST_HEAD(&mpc8xxx_spi->queue);
mpc8xxx_spi->workqueue = create_singlethread_workqueue(
dev_name(master->dev.parent));
if (mpc8xxx_spi->workqueue == NULL) {
ret = -EBUSY;
goto err;
}
return 0;
err:
return ret;
}
int mpc8xxx_spi_remove(struct device *dev)
@ -173,8 +118,6 @@ int mpc8xxx_spi_remove(struct device *dev)
master = dev_get_drvdata(dev);
mpc8xxx_spi = spi_master_get_devdata(master);
flush_workqueue(mpc8xxx_spi->workqueue);
destroy_workqueue(mpc8xxx_spi->workqueue);
spi_unregister_master(master);
free_irq(mpc8xxx_spi->irq, mpc8xxx_spi);

10
drivers/spi/spi-fsl-lib.h
View file

@ -55,7 +55,6 @@ struct mpc8xxx_spi {
u32(*get_tx) (struct mpc8xxx_spi *);
/* hooks for different controller driver */
void (*spi_do_one_msg) (struct spi_message *m);
void (*spi_remove) (struct mpc8xxx_spi *mspi);
unsigned int count;
@ -78,12 +77,6 @@ struct mpc8xxx_spi {
int bits_per_word, int msb_first);
#endif
struct workqueue_struct *workqueue;
struct work_struct work;
struct list_head queue;
spinlock_t lock;
struct completion done;
};
@ -123,9 +116,8 @@ extern struct mpc8xxx_spi_probe_info *to_of_pinfo(
struct fsl_spi_platform_data *pdata);
extern int mpc8xxx_spi_bufs(struct mpc8xxx_spi *mspi,
struct spi_transfer *t, unsigned int len);
extern int mpc8xxx_spi_transfer(struct spi_device *spi, struct spi_message *m);
extern const char *mpc8xxx_spi_strmode(unsigned int flags);
extern int mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
extern void mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
unsigned int irq);
extern int mpc8xxx_spi_remove(struct device *dev);
extern int of_mpc8xxx_spi_probe(struct platform_device *ofdev);

14
drivers/spi/spi-fsl-spi.c
View file

@ -353,7 +353,8 @@ static int fsl_spi_bufs(struct spi_device *spi, struct spi_transfer *t,
return mpc8xxx_spi->count;
}
static void fsl_spi_do_one_msg(struct spi_message *m)
static int fsl_spi_do_one_msg(struct spi_master *master,
struct spi_message *m)
{
struct spi_device *spi = m->spi;
struct spi_transfer *t, *first;
@ -408,8 +409,7 @@ static void fsl_spi_do_one_msg(struct spi_message *m)
}
m->status = status;
if (m->complete)
m->complete(m->context);
spi_finalize_current_message(master);
if (status || !cs_change) {
ndelay(nsecs);
@ -417,6 +417,7 @@ static void fsl_spi_do_one_msg(struct spi_message *m)
}
fsl_spi_setup_transfer(spi, NULL);
return 0;
}
static int fsl_spi_setup(struct spi_device *spi)
@ -624,15 +625,13 @@ static struct spi_master * fsl_spi_probe(struct device *dev,
dev_set_drvdata(dev, master);
ret = mpc8xxx_spi_probe(dev, mem, irq);
if (ret)
goto err_probe;
mpc8xxx_spi_probe(dev, mem, irq);
master->setup = fsl_spi_setup;
master->cleanup = fsl_spi_cleanup;
master->transfer_one_message = fsl_spi_do_one_msg;
mpc8xxx_spi = spi_master_get_devdata(master);
mpc8xxx_spi->spi_do_one_msg = fsl_spi_do_one_msg;
mpc8xxx_spi->spi_remove = fsl_spi_remove;
mpc8xxx_spi->max_bits_per_word = 32;
mpc8xxx_spi->type = fsl_spi_get_type(dev);
@ -704,7 +703,6 @@ static struct spi_master * fsl_spi_probe(struct device *dev,
err_ioremap:
fsl_spi_cpm_free(mpc8xxx_spi);
err_cpm_init:
err_probe:
spi_master_put(master);
err:
return ERR_PTR(ret);