AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-01 11:46:49 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
0379b2a33a
linux_dsm_epyc7002/drivers/spi
History
Viresh Kumar 0379b2a33a spi/spi-pl022: calculate_effective_freq() must set rate <= requested rate 
There were few issues with calculate_effective_freq() routine:
- It was returning first rate found >= requested rate. Now, if system have spi's
  rate as 83 MHz, with possible prescaled rates as 83, 41.5, 20.75, 13.83 (as we
  can prescale with multiples of 2). If user has given rate to be programmed as
  22 MHz, then driver programmes it to 41.5 MHz. This looks to be incorrect, as
  user might have given the upper limit of the device, and we are programming it
  above it.
- Driver finds the first satisfying rate and programmes it, but with other
  values of scr & cpsdvsr, it is possible to get more closer rate.

This patch fixes these two issues, with some reformatting inside the code.  This
also creates a inline routine to calculate prescaled rate based on spi's rate,
cpsdvsr and scr.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-09-21 09:41:47 -06:00
..
Kconfig spi/imx: use soc name in spi device type naming scheme 2011-07-14 13:47:02 -06:00
Makefile spi: remove obsolete spi-s3c24xx-gpio driver 2011-07-04 10:52:58 -06:00
spi-altera.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-ath79.c spi: Convert uses of struct resource * to resource_size(ptr) 2011-06-10 23:43:41 -06:00
spi-atmel.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-au1550.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-bfin5xx.c spi/bfin_spi: uninline fat queue funcs 2011-06-17 08:35:58 -06:00
spi-bfin-sport.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-bitbang-txrx.h spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-bitbang.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-butterfly.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-coldfire-qspi.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-davinci.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-dw-mid.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-dw-mmio.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-dw-pci.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-dw.c spi/dw: Add spi number into spi irq desc 2011-07-08 13:09:00 -06:00
spi-dw.h spi/dw: Add spi number into spi irq desc 2011-07-08 13:09:00 -06:00
spi-ep93xx.c Merge branch 'ep93xx-dma' into spi/next 2011-06-09 12:42:57 -06:00
spi-fsl-espi.c spi: reorganize drivers 2011-06-06 01:16:30 -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/fsl_spi: fix CPM spi driver 2011-07-05 11:59:17 -06:00
spi-gpio.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-imx.c spi/imx: add device tree probe support 2011-07-14 13:47:18 -06:00
spi-lm70llp.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-mpc52xx-psc.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-mpc52xx.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-mpc512x-psc.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-nuc900.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-oc-tiny.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-omap2-mcspi.c spi: Convert uses of struct resource * to resource_size(ptr) 2011-06-10 23:43:41 -06:00
spi-omap-100k.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-omap-uwire.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-orion.c spi: Convert uses of struct resource * to resource_size(ptr) 2011-06-10 23:43:41 -06:00
spi-pl022.c spi/spi-pl022: calculate_effective_freq() must set rate <= requested rate 2011-09-21 09:41:47 -06:00
spi-ppc4xx.c spi: Convert uses of struct resource * to resource_size(ptr) 2011-06-10 23:43:41 -06:00
spi-pxa2xx-pci.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-pxa2xx.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
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 spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-s3c64xx.c Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6 2011-07-22 14:52:44 -07:00
spi-sh-msiof.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-sh-sci.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-sh.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-stmp.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-tegra.c spi/tegra: Use engineering names in DT compatible property 2011-07-05 23:38:30 -06:00
spi-ti-ssp.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-tle62x0.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-topcliff-pch.c spi/topcliff-pch: Support new device ML7223 IOH 2011-06-16 18:49:23 -06:00
spi-txx9.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-xilinx.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spidev.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00