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This switches the PL022 worker to a kthread in order to get hold of a mechanism to control the message pump priority. On low-latency systems elevating the message kthread to realtime priority give a real sleek response curve. This has been confirmed by measurements. Realtime priority elevation for a certain PL022 port can be requested from platform data. Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Chris Blair <chris.blair@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| spi-altera.c | ||
| spi-ath79.c | ||
| spi-atmel.c | ||
| spi-au1550.c | ||
| spi-bfin5xx.c | ||
| spi-bfin-sport.c | ||
| spi-bitbang-txrx.h | ||
| spi-bitbang.c | ||
| spi-butterfly.c | ||
| spi-coldfire-qspi.c | ||
| spi-davinci.c | ||
| spi-dw-mid.c | ||
| spi-dw-mmio.c | ||
| spi-dw-pci.c | ||
| spi-dw.c | ||
| spi-dw.h | ||
| spi-ep93xx.c | ||
| spi-fsl-espi.c | ||
| spi-fsl-lib.c | ||
| spi-fsl-lib.h | ||
| spi-fsl-spi.c | ||
| spi-gpio.c | ||
| spi-imx.c | ||
| spi-lm70llp.c | ||
| spi-mpc52xx-psc.c | ||
| spi-mpc52xx.c | ||
| spi-mpc512x-psc.c | ||
| spi-nuc900.c | ||
| spi-oc-tiny.c | ||
| spi-omap2-mcspi.c | ||
| spi-omap-100k.c | ||
| spi-omap-uwire.c | ||
| spi-orion.c | ||
| spi-pl022.c | ||
| spi-ppc4xx.c | ||
| spi-pxa2xx-pci.c | ||
| spi-pxa2xx.c | ||
| spi-s3c24xx-fiq.h | ||
| spi-s3c24xx-fiq.S | ||
| spi-s3c24xx.c | ||
| spi-s3c64xx.c | ||
| spi-sh-msiof.c | ||
| spi-sh-sci.c | ||
| spi-sh.c | ||
| spi-stmp.c | ||
| spi-tegra.c | ||
| spi-ti-ssp.c | ||
| spi-tle62x0.c | ||
| spi-topcliff-pch.c | ||
| spi-txx9.c | ||
| spi-xilinx.c | ||
| spi.c | ||
| spidev.c | ||