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Subject[PATCH v2] spi: orion: cosmetics - alias long direct_access variables
Date
This change increases the source code readability.
Instead of using `spi->child[cs].direct_access.XXX` use `dacc->XXX`.
Instead of using `orion_spi->child[cs].direct_access.vaddr` use `vaddr`.

Signed-off-by: Kosta Zertsekel <zertsekel@gmail.com>
---
drivers/spi/spi-orion.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c
index d01a6adc726e..184ba91abeee 100644
--- a/drivers/spi/spi-orion.c
+++ b/drivers/spi/spi-orion.c
@@ -430,6 +430,7 @@ 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;
@@ -440,8 +441,9 @@ 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;

@@ -449,13 +451,11 @@ 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)

/* Scan all SPI devices of this controller for direct mapped devices */
for_each_available_child_of_node(pdev->dev.of_node, np) {
+ struct orion_direct_acc *dir_acc;
u32 cs;

/* Get chip-select number from the "reg" property */
@@ -711,14 +712,13 @@ 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);
}
--
2.17.1
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