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| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2017-08-08 22:51:30 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-08-09 18:53:06 +0200 |
| commit | c7a909cf25c6e1198f5a261d2af0503985871e1a (patch) | |
| tree | f4a643fed5eebf734ff6c39a5a1c0d368d355c00 /drivers/spi/spi-ep93xx.c | |
| parent | spi: spi-ep93xx: pass the spi_master pointer around (diff) | |
| download | linux-c7a909cf25c6e1198f5a261d2af0503985871e1a.tar.xz linux-c7a909cf25c6e1198f5a261d2af0503985871e1a.zip | |
spi: spi-ep93xx: remove private data 'current_msg'
The currently in-flight message can be found from the spi master.
Use that instead and remove the private data pointer.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-ep93xx.c')
| -rw-r--r-- | drivers/spi/spi-ep93xx.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c index 2d80e36f5015..cf7d8175bf79 100644 --- a/drivers/spi/spi-ep93xx.c +++ b/drivers/spi/spi-ep93xx.c @@ -74,7 +74,6 @@ * @mmio: pointer to ioremap()'d registers * @sspdr_phys: physical address of the SSPDR register * @wait: wait here until given transfer is completed - * @current_msg: message that is currently processed (or %NULL if none) * @tx: current byte in transfer to transmit * @rx: current byte in transfer to receive * @fifo_level: how full is FIFO (%0..%SPI_FIFO_SIZE - %1). Receiving one @@ -93,7 +92,6 @@ struct ep93xx_spi { void __iomem *mmio; unsigned long sspdr_phys; struct completion wait; - struct spi_message *current_msg; size_t tx; size_t rx; size_t fifo_level; @@ -236,8 +234,7 @@ static void ep93xx_do_read(struct ep93xx_spi *espi, struct spi_transfer *t) static int ep93xx_spi_read_write(struct spi_master *master) { struct ep93xx_spi *espi = spi_master_get_devdata(master); - struct spi_message *msg = espi->current_msg; - struct spi_transfer *t = msg->state; + struct spi_transfer *t = master->cur_msg->state; /* read as long as RX FIFO has frames in it */ while ((readl(espi->mmio + SSPSR) & SSPSR_RNE)) { @@ -290,7 +287,7 @@ ep93xx_spi_dma_prepare(struct spi_master *master, enum dma_transfer_direction dir) { struct ep93xx_spi *espi = spi_master_get_devdata(master); - struct spi_transfer *t = espi->current_msg->state; + struct spi_transfer *t = master->cur_msg->state; struct dma_async_tx_descriptor *txd; enum dma_slave_buswidth buswidth; struct dma_slave_config conf; @@ -415,13 +412,12 @@ static void ep93xx_spi_dma_callback(void *callback_param) static void ep93xx_spi_dma_transfer(struct spi_master *master) { struct ep93xx_spi *espi = spi_master_get_devdata(master); - struct spi_message *msg = espi->current_msg; struct dma_async_tx_descriptor *rxd, *txd; rxd = ep93xx_spi_dma_prepare(master, DMA_DEV_TO_MEM); if (IS_ERR(rxd)) { dev_err(&master->dev, "DMA RX failed: %ld\n", PTR_ERR(rxd)); - msg->status = PTR_ERR(rxd); + master->cur_msg->status = PTR_ERR(rxd); return; } @@ -429,7 +425,7 @@ static void ep93xx_spi_dma_transfer(struct spi_master *master) if (IS_ERR(txd)) { ep93xx_spi_dma_finish(master, DMA_DEV_TO_MEM); dev_err(&master->dev, "DMA TX failed: %ld\n", PTR_ERR(txd)); - msg->status = PTR_ERR(txd); + master->cur_msg->status = PTR_ERR(txd); return; } @@ -587,9 +583,7 @@ static int ep93xx_spi_transfer_one_message(struct spi_master *master, msg->status = 0; msg->actual_length = 0; - espi->current_msg = msg; ep93xx_spi_process_message(master, msg); - espi->current_msg = NULL; spi_finalize_current_message(master); @@ -611,7 +605,7 @@ static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id) writel(0, espi->mmio + SSPICR); dev_warn(&master->dev, "receive overrun, aborting the message\n"); - espi->current_msg->status = -EIO; + master->cur_msg->status = -EIO; } else { /* * Interrupt is either RX (RIS) or TX (TIS). For both cases we |