diff options
| author | Jan Kundrát <jan.kundrat@cesnet.cz> | 2018-02-10 12:20:23 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-02-15 15:19:58 +0000 |
| commit | 5c22af7eeb265413b80eb8e03ae708e1b222728c (patch) | |
| tree | 60f602d5a632cbbf050715017c563ab7a1f321da /drivers/spi/spi-orion.c | |
| parent | 64aa3bd32c2679ed51401cb32fe6b387a1e6b51b (diff) | |
| download | linux-5c22af7eeb265413b80eb8e03ae708e1b222728c.tar.bz2 | |
spi: orion: Prepare space for per-child options
Aggregating all options for a particular child underneath a common
struct looks cleaner compared to having a separate array for each
per-child option.
Signed-off-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-orion.c')
| -rw-r--r-- | drivers/spi/spi-orion.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c index ca52300baeb1..d01a6adc726e 100644 --- a/drivers/spi/spi-orion.c +++ b/drivers/spi/spi-orion.c @@ -90,6 +90,10 @@ struct orion_direct_acc { u32 size; }; +struct orion_child_options { + struct orion_direct_acc direct_access; +}; + struct orion_spi { struct spi_master *master; void __iomem *base; @@ -98,7 +102,7 @@ struct orion_spi { const struct orion_spi_dev *devdata; int unused_hw_gpio; - struct orion_direct_acc direct_access[ORION_NUM_CHIPSELECTS]; + struct orion_child_options child[ORION_NUM_CHIPSELECTS]; }; static inline void __iomem *spi_reg(struct orion_spi *orion_spi, u32 reg) @@ -436,7 +440,7 @@ 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->direct_access[cs].vaddr) && (xfer->tx_buf) && + if ((orion_spi->child[cs].direct_access.vaddr) && (xfer->tx_buf) && (word_len == 8)) { unsigned int cnt = count / 4; unsigned int rem = count % 4; @@ -445,12 +449,12 @@ 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->direct_access[cs].vaddr, + iowrite32_rep(orion_spi->child[cs].direct_access.vaddr, xfer->tx_buf, cnt); if (rem) { u32 *buf = (u32 *)xfer->tx_buf; - iowrite8_rep(orion_spi->direct_access[cs].vaddr, + iowrite8_rep(orion_spi->child[cs].direct_access.vaddr, &buf[cnt], rem); } @@ -707,14 +711,14 @@ 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->direct_access[cs].vaddr = devm_ioremap(&pdev->dev, + spi->child[cs].direct_access.vaddr = devm_ioremap(&pdev->dev, r->start, PAGE_SIZE); - if (!spi->direct_access[cs].vaddr) { + if (!spi->child[cs].direct_access.vaddr) { status = -ENOMEM; goto out_rel_axi_clk; } - spi->direct_access[cs].size = PAGE_SIZE; + spi->child[cs].direct_access.size = PAGE_SIZE; dev_info(&pdev->dev, "CS%d configured for direct access\n", cs); } |