Geert Uytterhoeven 902e7e6008 gpio: 74x164: Use a single SPI transfer instead of multiple transfers ... Currently the 74x164 driver assembles an SPI message from an array of one-byte SPI transfers, one for each daisy-chained shift register, as the first byte sent will end up in the last register. This array is allocated and deallocated on each GPIO write access. By storing the data in the internal buffer in reverse order, we can use a single SPI transfer with the internal buffer directly, simplifying the code a lot, and avoiding memory (de)allocations. This also avoids transient values on the GPIO outputs when using an SPI master that cannot keep the hardware chip select asserted in between multiple transfers (and would need cs-gpios for proper operation). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Mark Brown <broonie@kernel.org> [Rebased changing .dev to .parent] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>		2015-12-10 17:21:02 +01:00
..
devres.c	gpio: make flags mandatory for gpiod_get functions	2015-07-06 10:39:24 +02:00
gpio-74x164.c	gpio: 74x164: Use a single SPI transfer instead of multiple transfers	2015-12-10 17:21:02 +01:00
gpio-74xx-mmio.c	gpio: 74xx: Fix build warning about void to integer cast	2015-07-16 13:59:47 +02:00
gpio-104-idi-48.c	gpio: Add GPIO support for the ACCES 104-IDI-48	2015-12-01 09:56:36 +01:00
gpio-104-idio-16.c	gpio: 104-idio-16: Disable IRQ on device probe	2015-11-30 14:42:06 +01:00
gpio-adnp.c	gpio: Drop owner assignment from i2c_driver	2015-11-30 09:31:00 +01:00
gpio-adp5520.c	gpio: drop owner assignment from platform_drivers	2014-10-20 16:20:31 +02:00
gpio-adp5588.c	gpio: kill off set_irq_flags usage	2015-07-28 09:45:39 +02:00
gpio-altera.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-amd8111.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-amdpt.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-arizona.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-ath79.c	gpio: use dev_get_platdata()	2015-11-30 16:41:26 +01:00
gpio-bcm-kona.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-brcmstb.c	genirq: Remove irq argument from irq flow handlers	2015-09-16 15:47:51 +02:00
gpio-bt8xx.c	gpio: bt8xx: fix release of managed resources	2014-08-29 14:31:43 +02:00
gpio-clps711x.c	gpio: drop owner assignment from platform_drivers	2014-10-20 16:20:31 +02:00
gpio-crystalcove.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-cs5535.c	Driver core patches for 3.19-rc1	2014-12-14 16:10:09 -08:00
gpio-da9052.c	gpio: use (!foo) instead of (foo == NULL)	2015-04-08 09:54:21 +02:00
gpio-da9055.c	gpio: use (!foo) instead of (foo == NULL)	2015-04-08 09:54:21 +02:00
gpio-davinci.c	gpio: davinci: fix missed parent conversion	2015-12-04 14:15:05 +01:00
gpio-dln2.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-dwapb.c	genirq: Remove irq argument from irq flow handlers	2015-09-16 15:47:51 +02:00
gpio-em.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-ep93xx.c	genirq: Remove irq argument from irq flow handlers	2015-09-16 15:47:51 +02:00
gpio-etraxfs.c	gpio: etraxfs: use container_of() to get state container	2015-10-02 04:19:31 -07:00
gpio-f7188x.c	gpio: use dev_get_platdata()	2015-11-30 16:41:26 +01:00
gpio-ge.c	gpio: ge: Convert to use devm_kstrdup	2015-01-29 10:33:15 +01:00
gpio-generic.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-grgpio.c	gpio/grgpio: fix deadlock in grgpio_irq_unmap()	2015-08-17 10:56:24 +02:00
gpio-ich.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-intel-mid.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-iop.c	gpio: drop owner assignment from platform_drivers	2014-10-20 16:20:31 +02:00
gpio-it87.c	gpio: add GPIO support for IT87xx, replacing gpio-it8761e	2015-10-02 04:19:35 -07:00
gpio-janz-ttl.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-kempld.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-ks8695.c	gpio: ks8695: fix 'else should follow close brace '}''	2014-10-02 16:07:00 +02:00
gpio-loongson.c	gpio: loongson: Add Loongson-3A/3B GPIO driver support	2015-04-08 09:53:42 +02:00
gpio-lp3943.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-lpc18xx.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-lpc32xx.c	gpio: drop owner assignment from platform_drivers	2014-10-20 16:20:31 +02:00
gpio-lynxpoint.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-max730x.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-max732x.c	gpio: Drop owner assignment from i2c_driver	2015-11-30 09:31:00 +01:00
gpio-max7300.c	gpio: Drop owner assignment from i2c_driver	2015-11-30 09:31:00 +01:00
gpio-max7301.c	spi: Drop owner assignment from spi_drivers	2015-10-28 10:30:17 +09:00
gpio-mb86s7x.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-mc9s08dz60.c	gpio: Drop owner assignment from i2c_driver	2015-11-30 09:31:00 +01:00
gpio-mc33880.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-mcp23s08.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-ml-ioh.c	gpio: remove all usage of gpio_remove retval in driver/gpio	2014-07-22 16:39:26 +02:00
gpio-mm-lantiq.c	gpio: gpio-mm-lantiq: Use of_mm_gpiochip_remove	2015-01-20 11:18:51 +01:00
gpio-moxart.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-mpc8xxx.c	genirq: Remove irq argument from irq flow handlers	2015-09-16 15:47:51 +02:00
gpio-mpc5200.c	gpio: mpc5200: Use of_mm_gpiochip_remove	2015-01-20 11:18:28 +01:00
gpio-msic.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-mvebu.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-mxc.c	gpio-mxc: stop including <asm-generic/bug>	2015-10-15 00:21:12 +02:00
gpio-mxs.c	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-09-18 08:11:42 -07:00
gpio-octeon.c	gpio: use dev_get_platdata()	2015-11-30 16:41:26 +01:00
gpio-omap.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-palmas.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-pca953x.c	gpio: pca953x: make inclusion of <linux/of_platform.h> unconditional	2015-12-09 11:05:59 +01:00
gpio-pcf857x.c	gpio: Drop owner assignment from i2c_driver	2015-11-30 09:31:00 +01:00
gpio-pch.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-pl061.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-pxa.c	gpio: pxa: change the interrupt management	2015-12-10 16:05:44 +01:00
gpio-rc5t583.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-rcar.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-rdc321x.c	gpio: remove all usage of gpio_remove retval in driver/gpio	2014-07-22 16:39:26 +02:00
gpio-sa1100.c	genirq: Remove irq argument from irq flow handlers	2015-09-16 15:47:51 +02:00
gpio-samsung.c	gpio: samsung: Remove remaining check for CONFIG_S5P_GPIO_DRVSTR	2014-09-23 17:51:39 +02:00
gpio-sch311x.c	gpio: use dev_get_platdata()	2015-11-30 16:41:26 +01:00
gpio-sch.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-sodaville.c	irqdomain: Use irq_domain_get_of_node() instead of direct field access	2015-10-13 19:01:23 +02:00
gpio-spear-spics.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-sta2x11.c	gpio: kill off set_irq_flags usage	2015-07-28 09:45:39 +02:00
gpio-stmpe.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-stp-xway.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-sx150x.c	gpio: Drop owner assignment from i2c_driver	2015-11-30 09:31:00 +01:00
gpio-syscon.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-tb10x.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-tc3589x.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-tegra.c	genirq: Remove irq argument from irq flow handlers	2015-09-16 15:47:51 +02:00
gpio-timberdale.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-tps6586x.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-tps65910.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-tps65912.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-ts5500.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-twl4030.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-twl6040.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-tz1090-pdc.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-tz1090.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-ucb1400.c	gpio: remove all usage of gpio_remove retval in driver/gpio	2014-07-22 16:39:26 +02:00
gpio-vf610.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-viperboard.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-vr41xx.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-vx855.c	gpio: vx855: Switch to use managed resources APIs	2015-01-15 17:23:18 +01:00
gpio-wm831x.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-wm8350.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-wm8994.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-xgene-sb.c	gpio: xgene: add ACPI support for APM X-Gene GPIO standby driver	2015-06-02 14:52:00 +02:00
gpio-xgene.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-xilinx.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-xlp.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-xtensa.c	gpio: drop owner assignment from platform_drivers	2014-10-20 16:20:31 +02:00
gpio-zevio.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-zx.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpio-zynq.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpiolib-acpi.c	gpiolib: tighten up ACPI legacy gpio lookups	2015-11-19 09:24:37 +01:00
gpiolib-legacy.c	gpiolib: Split GPIO flags parsing and GPIO configuration	2015-10-16 22:46:46 +02:00
gpiolib-of.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpiolib-sysfs.c	gpio: change member .dev to .parent	2015-11-19 09:24:35 +01:00
gpiolib.c	gpiolib: make comment consistent with code	2015-11-29 22:37:10 +01:00
gpiolib.h	gpiolib: tighten up ACPI legacy gpio lookups	2015-11-19 09:24:37 +01:00
Kconfig	gpio: Add GPIO support for the ACCES 104-IDI-48	2015-12-01 09:56:36 +01:00
Makefile	gpio: Add GPIO support for the ACCES 104-IDI-48	2015-12-01 09:56:36 +01:00