spi: fsl-(e)spi: migrate to generic master queueing
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>
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@ -411,7 +411,8 @@ static void fsl_espi_rw_trans(struct spi_message *m,
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kfree(local_buf);
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}
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static void fsl_espi_do_one_msg(struct spi_message *m)
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static int fsl_espi_do_one_msg(struct spi_master *master,
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struct spi_message *m)
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{
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struct spi_transfer *t;
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u8 *rx_buf = NULL;
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@ -441,8 +442,8 @@ static void fsl_espi_do_one_msg(struct spi_message *m)
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m->actual_length = espi_trans.actual_length;
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m->status = espi_trans.status;
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if (m->complete)
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m->complete(m->context);
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spi_finalize_current_message(master);
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return 0;
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}
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static int fsl_espi_setup(struct spi_device *spi)
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@ -607,16 +608,14 @@ static struct spi_master * fsl_espi_probe(struct device *dev,
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dev_set_drvdata(dev, master);
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ret = mpc8xxx_spi_probe(dev, mem, irq);
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if (ret)
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goto err_probe;
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mpc8xxx_spi_probe(dev, mem, irq);
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master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 16);
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master->setup = fsl_espi_setup;
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master->cleanup = fsl_espi_cleanup;
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master->transfer_one_message = fsl_espi_do_one_msg;
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mpc8xxx_spi = spi_master_get_devdata(master);
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mpc8xxx_spi->spi_do_one_msg = fsl_espi_do_one_msg;
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mpc8xxx_spi->spi_remove = fsl_espi_remove;
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mpc8xxx_spi->reg_base = ioremap(mem->start, resource_size(mem));
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@ -61,44 +61,6 @@ struct mpc8xxx_spi_probe_info *to_of_pinfo(struct fsl_spi_platform_data *pdata)
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return container_of(pdata, struct mpc8xxx_spi_probe_info, pdata);
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}
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static void mpc8xxx_spi_work(struct work_struct *work)
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{
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struct mpc8xxx_spi *mpc8xxx_spi = container_of(work, struct mpc8xxx_spi,
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work);
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spin_lock_irq(&mpc8xxx_spi->lock);
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while (!list_empty(&mpc8xxx_spi->queue)) {
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struct spi_message *m = container_of(mpc8xxx_spi->queue.next,
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struct spi_message, queue);
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list_del_init(&m->queue);
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spin_unlock_irq(&mpc8xxx_spi->lock);
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if (mpc8xxx_spi->spi_do_one_msg)
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mpc8xxx_spi->spi_do_one_msg(m);
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spin_lock_irq(&mpc8xxx_spi->lock);
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}
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spin_unlock_irq(&mpc8xxx_spi->lock);
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}
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int mpc8xxx_spi_transfer(struct spi_device *spi,
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struct spi_message *m)
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{
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struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(spi->master);
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unsigned long flags;
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m->actual_length = 0;
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m->status = -EINPROGRESS;
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spin_lock_irqsave(&mpc8xxx_spi->lock, flags);
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list_add_tail(&m->queue, &mpc8xxx_spi->queue);
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queue_work(mpc8xxx_spi->workqueue, &mpc8xxx_spi->work);
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spin_unlock_irqrestore(&mpc8xxx_spi->lock, flags);
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return 0;
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}
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const char *mpc8xxx_spi_strmode(unsigned int flags)
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{
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if (flags & SPI_QE_CPU_MODE) {
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@ -114,13 +76,12 @@ const char *mpc8xxx_spi_strmode(unsigned int flags)
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return "CPU";
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}
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int mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
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void mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
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unsigned int irq)
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{
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struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
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struct spi_master *master;
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struct mpc8xxx_spi *mpc8xxx_spi;
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int ret = 0;
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master = dev_get_drvdata(dev);
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@ -128,7 +89,6 @@ int mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
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master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH
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| SPI_LSB_FIRST | SPI_LOOP;
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master->transfer = mpc8xxx_spi_transfer;
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master->dev.of_node = dev->of_node;
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mpc8xxx_spi = spi_master_get_devdata(master);
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@ -147,22 +107,7 @@ int mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
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master->bus_num = pdata->bus_num;
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master->num_chipselect = pdata->max_chipselect;
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spin_lock_init(&mpc8xxx_spi->lock);
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init_completion(&mpc8xxx_spi->done);
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INIT_WORK(&mpc8xxx_spi->work, mpc8xxx_spi_work);
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INIT_LIST_HEAD(&mpc8xxx_spi->queue);
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mpc8xxx_spi->workqueue = create_singlethread_workqueue(
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dev_name(master->dev.parent));
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if (mpc8xxx_spi->workqueue == NULL) {
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ret = -EBUSY;
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goto err;
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}
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return 0;
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err:
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return ret;
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}
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int mpc8xxx_spi_remove(struct device *dev)
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@ -173,8 +118,6 @@ int mpc8xxx_spi_remove(struct device *dev)
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master = dev_get_drvdata(dev);
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mpc8xxx_spi = spi_master_get_devdata(master);
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flush_workqueue(mpc8xxx_spi->workqueue);
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destroy_workqueue(mpc8xxx_spi->workqueue);
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spi_unregister_master(master);
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free_irq(mpc8xxx_spi->irq, mpc8xxx_spi);
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@ -55,7 +55,6 @@ struct mpc8xxx_spi {
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u32(*get_tx) (struct mpc8xxx_spi *);
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/* hooks for different controller driver */
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void (*spi_do_one_msg) (struct spi_message *m);
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void (*spi_remove) (struct mpc8xxx_spi *mspi);
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unsigned int count;
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@ -78,12 +77,6 @@ struct mpc8xxx_spi {
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int bits_per_word, int msb_first);
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#endif
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struct workqueue_struct *workqueue;
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struct work_struct work;
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struct list_head queue;
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spinlock_t lock;
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struct completion done;
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};
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@ -123,9 +116,8 @@ extern struct mpc8xxx_spi_probe_info *to_of_pinfo(
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struct fsl_spi_platform_data *pdata);
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extern int mpc8xxx_spi_bufs(struct mpc8xxx_spi *mspi,
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struct spi_transfer *t, unsigned int len);
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extern int mpc8xxx_spi_transfer(struct spi_device *spi, struct spi_message *m);
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extern const char *mpc8xxx_spi_strmode(unsigned int flags);
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extern int mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
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extern void mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
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unsigned int irq);
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extern int mpc8xxx_spi_remove(struct device *dev);
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extern int of_mpc8xxx_spi_probe(struct platform_device *ofdev);
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@ -353,7 +353,8 @@ static int fsl_spi_bufs(struct spi_device *spi, struct spi_transfer *t,
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return mpc8xxx_spi->count;
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}
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static void fsl_spi_do_one_msg(struct spi_message *m)
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static int fsl_spi_do_one_msg(struct spi_master *master,
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struct spi_message *m)
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{
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struct spi_device *spi = m->spi;
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struct spi_transfer *t, *first;
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@ -408,8 +409,7 @@ static void fsl_spi_do_one_msg(struct spi_message *m)
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}
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m->status = status;
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if (m->complete)
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m->complete(m->context);
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spi_finalize_current_message(master);
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if (status || !cs_change) {
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ndelay(nsecs);
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@ -417,6 +417,7 @@ static void fsl_spi_do_one_msg(struct spi_message *m)
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}
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fsl_spi_setup_transfer(spi, NULL);
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return 0;
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}
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static int fsl_spi_setup(struct spi_device *spi)
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@ -624,15 +625,13 @@ static struct spi_master * fsl_spi_probe(struct device *dev,
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dev_set_drvdata(dev, master);
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ret = mpc8xxx_spi_probe(dev, mem, irq);
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if (ret)
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goto err_probe;
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mpc8xxx_spi_probe(dev, mem, irq);
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master->setup = fsl_spi_setup;
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master->cleanup = fsl_spi_cleanup;
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master->transfer_one_message = fsl_spi_do_one_msg;
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mpc8xxx_spi = spi_master_get_devdata(master);
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mpc8xxx_spi->spi_do_one_msg = fsl_spi_do_one_msg;
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mpc8xxx_spi->spi_remove = fsl_spi_remove;
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mpc8xxx_spi->max_bits_per_word = 32;
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mpc8xxx_spi->type = fsl_spi_get_type(dev);
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@ -704,7 +703,6 @@ free_irq:
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err_ioremap:
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fsl_spi_cpm_free(mpc8xxx_spi);
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err_cpm_init:
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err_probe:
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spi_master_put(master);
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err:
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return ERR_PTR(ret);
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