diff options
| author | Roland Stigge <stigge@antcom.de> | 2012-08-22 15:49:17 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-08-22 20:00:44 +0100 |
| commit | f6f46de1063c8829713cd9d5b960dd8cb66cde8b (patch) | |
| tree | 3367d20d24223f9e149188eb2997b66111237633 /include/linux/amba | |
| parent | 3ce8859e2e72713d3619285cab609d05c3591fc4 (diff) | |
spi/pl022: Add chip select handling via GPIO
This patch adds the ability for the driver to control the chip select directly.
This enables independence from cs_control callbacks. Configurable via
platform_data, to be extended as DT in the following patch.
Based on the initial patch by Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Signed-off-by: Roland Stigge <stigge@antcom.de>
Acked-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/linux/amba')
| -rw-r--r-- | include/linux/amba/pl022.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/amba/pl022.h b/include/linux/amba/pl022.h index fe1d7b283cb..854b7294f6c 100644 --- a/include/linux/amba/pl022.h +++ b/include/linux/amba/pl022.h @@ -244,6 +244,7 @@ struct dma_chan; * indicates no delay and the device will be suspended immediately. * @rt: indicates the controller should run the message pump with realtime * priority to minimise the transfer latency on the bus. + * @chipselects: list of <num_chipselects> chip select gpios */ struct pl022_ssp_controller { u16 bus_id; @@ -254,6 +255,7 @@ struct pl022_ssp_controller { void *dma_tx_param; int autosuspend_delay; bool rt; + int *chipselects; }; /** |