mirror of
https://git.proxmox.com/git/mirror_ubuntu-kernels.git
synced 2026-08-03 09:34:18 +00:00
This will allow to use gpio for chip select with no modification in the driver binding When use the cs-gpios, the gpio number will be passed via the cs_gpio field and the number of chip select will automatically increased with max(hw cs, gpio cs). So if for example the controller has 2 CS lines, and the cs-gpios property looks like this: cs-gpios = <&gpio1 0 0> <0> <&gpio1 1 0> <&gpio1 2 0>; Then it should be configured so that num_chipselect = 4 with the following mapping: cs0 : &gpio1 0 0 cs1 : native cs2 : &gpio1 1 0 cs3 : &gpio1 2 0 Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: devicetree-discuss@lists.ozlabs.org Cc: spi-devel-general@lists.sourceforge.net Signed-off-by: Richard Genoud <richard.genoud@gmail.com> [grant.likely: fixed up type of cs count so min() can do type checking] Signed-off-by: Grant Likely <grant.likely@secretlab.ca> |
||
|---|---|---|
| .. | ||
| 74x164.h | ||
| ad7877.h | ||
| ad7879.h | ||
| ads7846.h | ||
| at73c213.h | ||
| at86rf230.h | ||
| corgi_lcd.h | ||
| ds1305.h | ||
| eeprom.h | ||
| flash.h | ||
| ifx_modem.h | ||
| l4f00242t03.h | ||
| libertas_spi.h | ||
| lms283gf05.h | ||
| max7301.h | ||
| mc33880.h | ||
| mcp23s08.h | ||
| mmc_spi.h | ||
| mxs-spi.h | ||
| pxa2xx_spi.h | ||
| rspi.h | ||
| s3c24xx.h | ||
| sh_hspi.h | ||
| sh_msiof.h | ||
| spi_bitbang.h | ||
| spi_gpio.h | ||
| spi_oc_tiny.h | ||
| spi.h | ||
| tdo24m.h | ||
| tle62x0.h | ||
| tsc2005.h | ||
| xilinx_spi.h | ||