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>

diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index a7f94b6..90be640 100644 (file)
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -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));

diff --git a/drivers/spi/spi-fsl-lib.c b/drivers/spi/spi-fsl-lib.c
index 5ddb5b0..446b737 100644 (file)
--- a/drivers/spi/spi-fsl-lib.c
+++ b/drivers/spi/spi-fsl-lib.c
@@ -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);

diff --git a/drivers/spi/spi-fsl-lib.h b/drivers/spi/spi-fsl-lib.h
index 2fcbfd0..b4ed04e 100644 (file)
--- a/drivers/spi/spi-fsl-lib.h
+++ b/drivers/spi/spi-fsl-lib.h
@@ -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);

diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c
index ed79288..6b94428 100644 (file)
--- a/drivers/spi/spi-fsl-spi.c
+++ b/drivers/spi/spi-fsl-spi.c
@@ -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 @@ free_irq:
 err_ioremap:
        fsl_spi_cpm_free(mpc8xxx_spi);
 err_cpm_init:
-err_probe:
        spi_master_put(master);
 err:
        return ERR_PTR(ret);