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ea505bc99f
linux/drivers/spi
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Viresh Kumar ea505bc99f spi/pl022: Allow request for higher frequency than maximum possible 
Currently, if we request for frequency greater than maximum possible, spi driver
returns error.

For example, if the spi block src frequency is 333/4 MHz, i.e. 83.33.. MHz,
maximum frequency programmable would be src/2. Which would come around 41.6...

It is difficult to pass frequency in these figures. We normally try to program
in round figures, like 42 MHz and it should get programmed to <=
requested_frequency, i.e. 41.6...

For this to happen, we must not return error even if requested freq is higher
than max possible. But should program it to max possible.

Reported-by: Vinit Kamalaksha Shenoy <vinit.shenoy@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-04-27 12:07:40 -06:00
..
Kconfig ARM: global cleanups 2012-03-27 16:03:32 -07:00
Makefile spi: add Broadcom BCM63xx SPI controller driver 2012-03-09 15:03:03 -07:00
spi-altera.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-ath79.c spi/ath79: fix compile error due to missing include 2011-12-07 21:57:49 +01:00
spi-atmel.c atmel/spi: fix missing probe 2011-11-09 23:02:12 +08:00
spi-au1550.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-bcm63xx.c spi/bcm63xx: set master driver mode_bits. 2012-04-27 11:19:15 -06:00
spi-bfin5xx.c spi: irq: Remove IRQF_DISABLED 2011-10-24 14:14:40 +02:00
spi-bfin-sport.c drivercore: Add helper macro for platform_driver boilerplate 2011-10-25 00:35:47 +02:00
spi-bitbang-txrx.h spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-bitbang.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-butterfly.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-coldfire-qspi.c drivercore: Add helper macro for platform_driver boilerplate 2011-10-25 00:35:47 +02:00
spi-davinci.c spi/davinci: Fix DMA API usage in davinci 2012-03-30 16:46:22 -06:00
spi-dw-mid.c dmaengine/dma_slave: introduce inline wrappers 2012-03-21 19:20:22 +05:30
spi-dw-mmio.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-dw-pci.c spi: Convert to DEFINE_PCI_DEVICE_TABLE 2012-03-09 15:33:15 -07:00
spi-dw.c simple_open: automatically convert to simple_open() 2012-04-05 15:25:50 -07:00
spi-dw.h spi: spi-dw: fix all sparse warnings 2011-09-21 09:41:48 -06:00
spi-ep93xx.c spi/spi-ep93xx.c: use dma_transfer_direction instead of dma_data_direction 2012-04-27 11:11:28 -06:00
spi-fsl-espi.c spi/fsl-espi: Make sure pm is within 2..32 2012-03-15 15:14:24 -06:00
spi-fsl-lib.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-fsl-lib.h spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-fsl-spi.c spi/mpc83xx: fix NULL pdata dereference bug 2012-03-30 16:46:22 -06:00
spi-gpio.c spi/gpio: fix section mismatch warning 2011-12-07 22:17:39 +01:00
spi-imx.c spi/imx: prevent NULL pointer dereference in spi_imx_probe() 2012-04-10 22:17:15 -06:00
spi-lm70llp.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-mpc52xx-psc.c drivercore: Add helper macro for platform_driver boilerplate 2011-10-25 00:35:47 +02:00
spi-mpc52xx.c drivercore: Add helper macro for platform_driver boilerplate 2011-10-25 00:35:47 +02:00
spi-mpc512x-psc.c drivercore: Add helper macro for platform_driver boilerplate 2011-10-25 00:35:47 +02:00
spi-nuc900.c spi/nuc900: Remove unnecessary memset of struct nuc900_spi 2012-02-01 17:10:52 -07:00
spi-oc-tiny.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-omap2-mcspi.c spi/omap: Add DT support to McSPI driver 2012-02-15 12:57:00 -07:00
spi-omap-100k.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-omap-uwire.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
spi-orion.c ARM: orion: spi: remove enable_clock_fix which is not used 2012-03-16 04:28:40 +00:00
spi-pl022.c spi/pl022: Allow request for higher frequency than maximum possible 2012-04-27 12:07:40 -06:00
spi-ppc4xx.c drivercore: Add helper macro for platform_driver boilerplate 2011-10-25 00:35:47 +02:00
spi-pxa2xx-pci.c spi: Convert to DEFINE_PCI_DEVICE_TABLE 2012-03-09 15:33:15 -07:00
spi-pxa2xx.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-rspi.c spi: add support for Renesas RSPI 2012-03-07 19:18:49 -07:00
spi-s3c24xx-fiq.h spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-s3c24xx-fiq.S spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-s3c24xx.c ARM: S3C24XX: move spi-s3c24xx platdata out of mach 2012-01-31 20:06:27 +09:00
spi-s3c64xx.c spi: s3c64xx: Fix build 2012-03-15 03:32:17 -06:00
spi-sh-hspi.c spi: sh-hspi: modify write/read method 2012-03-15 03:41:50 -06:00
spi-sh-msiof.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-sh-sci.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-sh.c spi/spi-sh: add IORESOURCE_MEM_TYPE_MASK decoding for access size 2012-03-07 19:18:45 -07:00
spi-sirf.c SPI: add CSR SiRFprimaII SPI controller driver 2012-03-09 14:51:11 -07:00
spi-stmp.c drivercore: Add helper macro for platform_driver boilerplate 2011-10-25 00:35:47 +02:00
spi-tegra.c drivercore: Add helper macro for platform_driver boilerplate 2011-10-25 00:35:47 +02:00
spi-ti-ssp.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-tle62x0.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-topcliff-pch.c Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-03-29 15:34:57 -07:00
spi-txx9.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-xilinx.c drivercore: Add helper macro for platform_driver boilerplate 2011-10-25 00:35:47 +02:00
spi.c spi: remove redundant variable assignment 2012-03-15 03:30:33 -06:00
spidev.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00