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authorLinus Torvalds <torvalds@linux-foundation.org>2018-10-23 01:26:05 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2018-10-23 01:26:05 +0100
commitb537149a2fb45ef9936b7a55aa801fbab8ea2a8a (patch)
treeb0e53f0805bb5f943b8307d4389792ae24482883 /drivers/spi/spi-orion.c
parent6214a9fe2aeca5e22184b20954774424e2efc1f6 (diff)
parent7b9734dbc5b042bb8d8d930797f346b280057c4e (diff)
Merge tag 'spi-v5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown: "One new core feature here, a small collection of new drivers and a bunch of small improvements in existing drivers: - A new CS_WORD flag for transfers where the chip select is toggled at every word, with both a generic implementation and the ability for controllers to do this automatically (including a DaVinci one). - New drivers for Mediatek MT2712, Qualcomm GENI and QSPI, Spreadtrum SPI and ST STM32 QSPI plus new IDs for several existing ones" * tag 'spi-v5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (86 commits) spi: lpspi: add imx8qxp compatible string spi: Allow building SPI_BCM63XX_HSSPI on ARM-based SoCs spi: omap2-mcspi: Add slave mode support spi: omap2-mcspi: Set FIFO DMA trigger level to word length spi: omap2-mcspi: Switch to readl_poll_timeout() spi: spi-mem: add stm32 qspi controller dt-bindings: spi: add stm32 qspi controller spi: sh-msiof: document R8A779{7|8}0 bindings spi: pic32-sqi: don't pass GFP_DMA32 to dma_alloc_coherent MAINTAINERS: Add entry for Broadcom SPI controller spi: sh-msiof: fix deferred probing spi: imx: use PIO mode if size is small spi: imx: correct wml as the last sg length spi: imx: move wml setting to later than setup_transfer PCI: Provide pci_match_id() with CONFIG_PCI=n spi: Make GPIO CSs honour the SPI_NO_CS flag spi/spi-pxa2xx: add PXA2xx SSP SPI Controller spi: pxa2xx: Add devicetree support spi: pxa2xx: Use an enum for type spi: spi-geni-qcom: Add SPI driver support for GENI based QUP ...
Diffstat (limited to 'drivers/spi/spi-orion.c')
-rw-r--r--drivers/spi/spi-orion.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c
index 47ef6b1a2e76..7f280567093e 100644
--- a/drivers/spi/spi-orion.c
+++ b/drivers/spi/spi-orion.c
@@ -431,6 +431,7 @@ orion_spi_write_read(struct spi_device *spi, struct spi_transfer *xfer)
int word_len;
struct orion_spi *orion_spi;
int cs = spi->chip_select;
+ void __iomem *vaddr;
word_len = spi->bits_per_word;
count = xfer->len;
@@ -441,8 +442,9 @@ orion_spi_write_read(struct spi_device *spi, struct spi_transfer *xfer)
* Use SPI direct write mode if base address is available. Otherwise
* fall back to PIO mode for this transfer.
*/
- if ((orion_spi->child[cs].direct_access.vaddr) && (xfer->tx_buf) &&
- (word_len == 8)) {
+ vaddr = orion_spi->child[cs].direct_access.vaddr;
+
+ if (vaddr && xfer->tx_buf && word_len == 8) {
unsigned int cnt = count / 4;
unsigned int rem = count % 4;
@@ -450,13 +452,11 @@ orion_spi_write_read(struct spi_device *spi, struct spi_transfer *xfer)
* Send the TX-data to the SPI device via the direct
* mapped address window
*/
- iowrite32_rep(orion_spi->child[cs].direct_access.vaddr,
- xfer->tx_buf, cnt);
+ iowrite32_rep(vaddr, xfer->tx_buf, cnt);
if (rem) {
u32 *buf = (u32 *)xfer->tx_buf;
- iowrite8_rep(orion_spi->child[cs].direct_access.vaddr,
- &buf[cnt], rem);
+ iowrite8_rep(vaddr, &buf[cnt], rem);
}
return count;
@@ -683,6 +683,7 @@ static int orion_spi_probe(struct platform_device *pdev)
}
for_each_available_child_of_node(pdev->dev.of_node, np) {
+ struct orion_direct_acc *dir_acc;
u32 cs;
int cs_gpio;
@@ -750,14 +751,13 @@ static int orion_spi_probe(struct platform_device *pdev)
* This needs to get extended for the direct SPI-NOR / SPI-NAND
* support, once this gets implemented.
*/
- spi->child[cs].direct_access.vaddr = devm_ioremap(&pdev->dev,
- r->start,
- PAGE_SIZE);
- if (!spi->child[cs].direct_access.vaddr) {
+ dir_acc = &spi->child[cs].direct_access;
+ dir_acc->vaddr = devm_ioremap(&pdev->dev, r->start, PAGE_SIZE);
+ if (!dir_acc->vaddr) {
status = -ENOMEM;
goto out_rel_axi_clk;
}
- spi->child[cs].direct_access.size = PAGE_SIZE;
+ dir_acc->size = PAGE_SIZE;
dev_info(&pdev->dev, "CS%d configured for direct access\n", cs);
}