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authorAmit Kumar Mahapatra <[email protected]>2023-03-10 23:02:07 +0530
committerMark Brown <[email protected]>2023-03-11 12:34:05 +0000
commitcaa9d3475b1c5566f0272273c147cc9b72f2be28 (patch)
tree654156e6e1d39fcf6391276998e278ad5359dcf6
parent0817bcef53e4e3df23c023eddaa2b35b7288400e (diff)
staging: Replace all spi->chip_select and spi->cs_gpiod references with function call
Supporting multi-cs in spi drivers would require the chip_select & cs_gpiod members of struct spi_device to be an array. But changing the type of these members to array would break the spi driver functionality. To make the transition smoother introduced four new APIs to get/set the spi->chip_select & spi->cs_gpiod and replaced all spi->chip_select and spi->cs_gpiod references with get or set API calls. While adding multi-cs support in further patches the chip_select & cs_gpiod members of the spi_device structure would be converted to arrays & the "idx" parameter of the APIs would be used as array index i.e., spi->chip_select[idx] & spi->cs_gpiod[idx] respectively. Signed-off-by: Amit Kumar Mahapatra <[email protected]> Reviewed-by: Greg Kroah-Hartman <[email protected]> Reviewed-by: Michal Simek <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]>
-rw-r--r--drivers/staging/fbtft/fbtft-core.c2
-rw-r--r--drivers/staging/greybus/spilib.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index afaba94d1d1c..3a4abf3bae40 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -840,7 +840,7 @@ int fbtft_register_framebuffer(struct fb_info *fb_info)
sprintf(text1, ", %zu KiB buffer memory", par->txbuf.len >> 10);
if (spi)
sprintf(text2, ", spi%d.%d at %d MHz", spi->master->bus_num,
- spi->chip_select, spi->max_speed_hz / 1000000);
+ spi_get_chipselect(spi, 0), spi->max_speed_hz / 1000000);
dev_info(fb_info->dev,
"%s frame buffer, %dx%d, %d KiB video memory%s, fps=%lu%s\n",
fb_info->fix.id, fb_info->var.xres, fb_info->var.yres,
diff --git a/drivers/staging/greybus/spilib.c b/drivers/staging/greybus/spilib.c
index ad0700a0bb81..efb3bec58e15 100644
--- a/drivers/staging/greybus/spilib.c
+++ b/drivers/staging/greybus/spilib.c
@@ -237,7 +237,7 @@ static struct gb_operation *gb_spi_operation_create(struct gb_spilib *spi,
request = operation->request->payload;
request->count = cpu_to_le16(count);
request->mode = dev->mode;
- request->chip_select = dev->chip_select;
+ request->chip_select = spi_get_chipselect(dev, 0);
gb_xfer = &request->transfers[0];
tx_data = gb_xfer + count; /* place tx data after last gb_xfer */