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| author | Linus Walleij <linus.walleij@linaro.org> | 2022-01-25 01:58:36 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-01-31 16:17:27 +0100 |
| commit | 31455bbda2081af83f72bb4636348b12b82c37c1 (patch) | |
| tree | b5a6bfb26ac2ccbd2c52a71d220b708250010337 /Documentation/spi/pxa2xx.rst | |
| parent | spi: Fix missing unlock on error in sp7021_spi_master_transfer_one() (diff) | |
| download | linux-31455bbda2081af83f72bb4636348b12b82c37c1.tar.xz linux-31455bbda2081af83f72bb4636348b12b82c37c1.zip | |
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/pxa2xx.rst')
| -rw-r--r-- | Documentation/spi/pxa2xx.rst | 3 |
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 = { |