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Commit 60c1beef authored by Mark Brown's avatar Mark Brown
Browse files

Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/doc', 'spi/fix/dw',... 

Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/doc', 'spi/fix/dw', 'spi/fix/img-spfi', 'spi/fix/pl022' and 'spi/fix/ti-qspi' into spi-linus
parents 13a7a6ac 76e1d14b c6331ba3 c9dafb27 f165ed63 cd6fa8d2 00611047

drivers/spi/spi-atmel.c

+6 −6
Original line number Diff line number Diff line
@@ -764,17 +764,17 @@ static void atmel_spi_pdc_next_xfer(struct spi_master *master, 
			(unsigned long long)xfer->rx_dma);

	}



	/* REVISIT: We're waiting for ENDRX before we start the next

	/* REVISIT: We're waiting for RXBUFF before we start the next

	 * transfer because we need to handle some difficult timing

	 * issues otherwise. If we wait for ENDTX in one transfer and

	 * then starts waiting for ENDRX in the next, it's difficult

	 * to tell the difference between the ENDRX interrupt we're

	 * actually waiting for and the ENDRX interrupt of the

	 * issues otherwise. If we wait for TXBUFE in one transfer and

	 * then starts waiting for RXBUFF in the next, it's difficult

	 * to tell the difference between the RXBUFF interrupt we're

	 * actually waiting for and the RXBUFF interrupt of the

	 * previous transfer.

	 *

	 * It should be doable, though. Just not now...

	 */

	spi_writel(as, IER, SPI_BIT(ENDRX) | SPI_BIT(OVRES));

	spi_writel(as, IER, SPI_BIT(RXBUFF) | SPI_BIT(OVRES));

	spi_writel(as, PTCR, SPI_BIT(TXTEN) | SPI_BIT(RXTEN));

}

drivers/spi/spi-dw-mid.c

+6 −0
Original line number Diff line number Diff line
@@ -139,6 +139,9 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_tx(struct dw_spi *dws) 
				1,

				DMA_MEM_TO_DEV,

				DMA_PREP_INTERRUPT | DMA_CTRL_ACK);

	if (!txdesc)

		return NULL;



	txdesc->callback = dw_spi_dma_tx_done;

	txdesc->callback_param = dws;
@@ -184,6 +187,9 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_rx(struct dw_spi *dws) 
				1,

				DMA_DEV_TO_MEM,

				DMA_PREP_INTERRUPT | DMA_CTRL_ACK);

	if (!rxdesc)

		return NULL;



	rxdesc->callback = dw_spi_dma_rx_done;

	rxdesc->callback_param = dws;

drivers/spi/spi-dw-pci.c

+2 −2
Original line number Diff line number Diff line
@@ -36,13 +36,13 @@ struct spi_pci_desc { 


static struct spi_pci_desc spi_pci_mid_desc_1 = {

	.setup = dw_spi_mid_init,

	.num_cs = 32,

	.num_cs = 5,

	.bus_num = 0,

};



static struct spi_pci_desc spi_pci_mid_desc_2 = {

	.setup = dw_spi_mid_init,

	.num_cs = 4,

	.num_cs = 2,

	.bus_num = 1,

};

drivers/spi/spi-dw.c

+2 −2
Original line number Diff line number Diff line
@@ -621,14 +621,14 @@ static void spi_hw_init(struct device *dev, struct dw_spi *dws) 
	if (!dws->fifo_len) {

		u32 fifo;



		for (fifo = 2; fifo <= 256; fifo++) {

		for (fifo = 1; fifo < 256; fifo++) {

			dw_writew(dws, DW_SPI_TXFLTR, fifo);

			if (fifo != dw_readw(dws, DW_SPI_TXFLTR))

				break;

		}

		dw_writew(dws, DW_SPI_TXFLTR, 0);



		dws->fifo_len = (fifo == 2) ? 0 : fifo - 1;

		dws->fifo_len = (fifo == 1) ? 0 : fifo;

		dev_dbg(dev, "Detected FIFO size: %u bytes\n", dws->fifo_len);

	}

}

drivers/spi/spi-img-spfi.c

+7 −0
Original line number Diff line number Diff line
@@ -459,6 +459,13 @@ static int img_spfi_transfer_one(struct spi_master *master, 
	unsigned long flags;

	int ret;



	if (xfer->len > SPFI_TRANSACTION_TSIZE_MASK) {

		dev_err(spfi->dev,

			"Transfer length (%d) is greater than the max supported (%d)",

			xfer->len, SPFI_TRANSACTION_TSIZE_MASK);

		return -EINVAL;

	}



	/*

	 * Stop all DMA and reset the controller if the previous transaction

	 * timed-out and never completed it's DMA.