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authorLinus Walleij <linus.walleij@linaro.org>2022-01-25 01:58:36 +0100
committerMark Brown <broonie@kernel.org>2022-01-31 15:17:27 +0000
commit31455bbda2081af83f72bb4636348b12b82c37c1 (patch)
treeb5a6bfb26ac2ccbd2c52a71d220b708250010337 /Documentation/spi
parent20dc69ca1023b7e4c4af3c3495aa5a91e1a9be39 (diff)
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spi: pxa2xx_spi: Convert to use GPIO descriptors
This converts the PXA2xx SPI driver to use GPIO descriptors exclusively to retrieve GPIO chip select lines. The device tree and ACPI paths of the driver already use descriptors, hence ->use_gpio_descriptors is already set and this codepath is well tested. Convert all the PXA boards providing chip select GPIOs as platform data and drop the old GPIO chipselect handling in favor of the core managing it exclusively. Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: linux-arm-kernel@lists.infradead.org Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220125005836.494807-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/spi')
-rw-r--r--Documentation/spi/pxa2xx.rst3
1 files changed, 0 insertions, 3 deletions
diff --git a/Documentation/spi/pxa2xx.rst b/Documentation/spi/pxa2xx.rst
index 6347580826be..716f65d87d04 100644
--- a/Documentation/spi/pxa2xx.rst
+++ b/Documentation/spi/pxa2xx.rst
@@ -101,7 +101,6 @@ device. All fields are optional.
u8 rx_threshold;
u8 dma_burst_size;
u32 timeout;
- int gpio_cs;
};
The "pxa2xx_spi_chip.tx_threshold" and "pxa2xx_spi_chip.rx_threshold" fields are
@@ -146,7 +145,6 @@ field. Below is a sample configuration using the PXA255 NSSP.
.rx_threshold = 8, /* SSP hardward FIFO threshold */
.dma_burst_size = 8, /* Byte wide transfers used so 8 byte bursts */
.timeout = 235, /* See Intel documentation */
- .gpio_cs = 2, /* Use external chip select */
};
static struct pxa2xx_spi_chip cs8405a_chip_info = {
@@ -154,7 +152,6 @@ field. Below is a sample configuration using the PXA255 NSSP.
.rx_threshold = 8, /* SSP hardward FIFO threshold */
.dma_burst_size = 8, /* Byte wide transfers used so 8 byte bursts */
.timeout = 235, /* See Intel documentation */
- .gpio_cs = 3, /* Use external chip select */
};
static struct spi_board_info streetracer_spi_board_info[] __initdata = {