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linux/arch/arm/mach-imx
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Linus Walleij 8cdcd8aeee
spi: imx/fsl-lpspi: Convert to GPIO descriptors 
This converts the two Freescale i.MX SPI drivers
Freescale i.MX (CONFIG_SPI_IMX) and Freescale i.MX LPSPI
(CONFIG_SPI_FSL_LPSPI) to use GPIO descriptors handled in
the SPI core for GPIO chip selects whether defined in
the device tree or a board file.

The reason why both are converted at the same time is
that they were both using the same platform data and
platform device population helpers when using
board files intertwining the code so this gives a cleaner
cut.

The platform device creation was passing a platform data
container from each boardfile down to the driver using
struct spi_imx_master from <linux/platform_data/spi-imx.h>,
but this was only conveying the number of chipselects and
an int * array of the chipselect GPIO numbers.

The imx27 and imx31 platforms had code passing the
now-unused platform data when creating the platform devices,
this has been repurposed to pass around GPIO descriptor
tables. The platform data struct that was just passing an
array of integers and number of chip selects for the GPIO
lines has been removed.

The number of chipselects used to be passed from the board
file, because this number also limits the number of native
chipselects that the platform can use. To deal with this we
just augment the i.MX (CONFIG_SPI_IMX) driver to support 3
chipselects if the platform does not define "num-cs" as a
device property (such as from the device tree). This covers
all the legacy boards as these use <= 3 native chip selects
(or GPIO lines, and in that case the number of chip selects
is determined by the core from the number of available
GPIO lines). Any new boards should use device tree, so
this is a reasonable simplification to cover all old
boards.

The LPSPI driver never assigned the number of chipselects
and thus always fall back to the core default of 1 chip
select if no GPIOs are defined in the device tree.

The Freescale i.MX driver was already partly utilizing
the SPI core to obtain the GPIO numbers from the device tree,
so this completes the transtion to let the core handle all
of it.

All board files and the core i.MX boardfile registration
code is augmented to account for these changes.

This has been compile-tested with the imx_v4_v5_defconfig
and the imx_v6_v7_defconfig.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Robin Gong <yibin.gong@nxp.com>
Cc: Trent Piepho <tpiepho@impinj.com>
Cc: Clark Wang <xiaoning.wang@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Link: https://lore.kernel.org/r/20200625200252.207614-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
 		2020-07-13 18:27:06 +01:00
..
devices spi: imx/fsl-lpspi: Convert to GPIO descriptors 2020-07-13 18:27:06 +01:00
3ds_debugboard.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
3ds_debugboard.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
Kconfig ARM: imx: limit errata selection to Cortex-A9 based designs 2020-02-14 11:37:57 +08:00
Makefile ARM: imx: provide v7_cpu_resume() only on ARM_CPU_SUSPEND=y 2020-04-17 16:29:59 +02:00
Makefile.boot ARM: vf610: enable Cortex-M4 configuration on Vybrid SoC 2015-05-20 23:10:14 +02:00
anatop.c ARM: imx: Remove unnecessary blank lines 2020-03-11 15:17:02 +08:00
avic.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
board-mx31lilly.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
board-mx31lite.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
board-mx31moboard.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
common.h ARM: imx: use device_initcall for imx_soc_device_init 2020-05-20 23:03:42 +08:00
cpu-imx5.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
cpu-imx25.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cpu-imx27.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
cpu-imx31.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cpu-imx35.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cpu.c soc: imx: move cpu code to drivers/soc/imx 2020-05-20 23:03:50 +08:00
cpuidle-imx5.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cpuidle-imx6q.c cpuidle: Introduce cpuidle_driver_state_disabled() for driver quirks 2019-11-19 10:35:13 +01:00
cpuidle-imx6sl.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cpuidle-imx6sx.c SPDX update for 5.2-rc6 2019-06-21 09:58:42 -07:00
cpuidle-imx7ulp.c ARM: imx: add i.MX7ULP cpuidle support 2019-01-15 23:03:40 +08:00
cpuidle.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
crmregs-imx3.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
devices-imx21.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
devices-imx27.h spi: imx/fsl-lpspi: Convert to GPIO descriptors 2020-07-13 18:27:06 +01:00
devices-imx31.h spi: imx/fsl-lpspi: Convert to GPIO descriptors 2020-07-13 18:27:06 +01:00
devices-imx35.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ehci-imx27.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ehci-imx31.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ehci-imx35.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ehci.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gpc.c ARM: imx: Remove unnecessary blank lines 2020-03-11 15:17:02 +08:00
hardware.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
headsmp.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
hotplug.c ARM: imx: use generic function to exit coherency 2019-11-04 08:25:56 +08:00
iim.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
imx27-dt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
imx31-dt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
imx35-dt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
iomux-imx31.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
iomux-mx2x.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
iomux-mx3.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
iomux-mx21.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
iomux-mx27.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
iomux-mx35.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
iomux-v1.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
iomux-v1.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
iomux-v3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
iomux-v3.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
irq-common.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
irq-common.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
mach-armadillo5x0.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
mach-bug.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mach-imx1.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mach-imx6q.c ARM: imx: use device_initcall for imx_soc_device_init 2020-05-20 23:03:42 +08:00
mach-imx6sl.c ARM: imx: use device_initcall for imx_soc_device_init 2020-05-20 23:03:42 +08:00
mach-imx6sx.c ARM: imx: use device_initcall for imx_soc_device_init 2020-05-20 23:03:42 +08:00
mach-imx6ul.c ARM: imx: use device_initcall for imx_soc_device_init 2020-05-20 23:03:42 +08:00
mach-imx7d-cm4.c ARM: imx: Provide support for NXP i.MX7D Cortex-M4 2018-07-03 15:17:57 +08:00
mach-imx7d.c ARM: imx: use device_initcall for imx_soc_device_init 2020-05-20 23:03:42 +08:00
mach-imx7ulp.c ARM: imx: use device_initcall for imx_soc_device_init 2020-05-20 23:03:42 +08:00
mach-imx25.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
mach-imx27_visstrim_m10.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
mach-imx50.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
mach-imx51.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
mach-imx53.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
mach-kzm_arm11_01.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mach-ls1021a.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mach-mx21ads.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mach-mx27_3ds.c spi: imx/fsl-lpspi: Convert to GPIO descriptors 2020-07-13 18:27:06 +01:00
mach-mx27ads.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mach-mx31_3ds.c spi: imx/fsl-lpspi: Convert to GPIO descriptors 2020-07-13 18:27:06 +01:00
mach-mx31ads.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mach-mx31lilly.c spi: imx/fsl-lpspi: Convert to GPIO descriptors 2020-07-13 18:27:06 +01:00
mach-mx31lite.c spi: imx/fsl-lpspi: Convert to GPIO descriptors 2020-07-13 18:27:06 +01:00
mach-mx31moboard.c spi: imx/fsl-lpspi: Convert to GPIO descriptors 2020-07-13 18:27:06 +01:00
mach-mx35_3ds.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mach-pca100.c spi: imx/fsl-lpspi: Convert to GPIO descriptors 2020-07-13 18:27:06 +01:00
mach-pcm037.c ARM: imx: pcm037: make pcm970_sja1000_platform_data static 2020-05-20 09:38:37 +08:00
mach-pcm037_eet.c spi: imx/fsl-lpspi: Convert to GPIO descriptors 2020-07-13 18:27:06 +01:00
mach-pcm043.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mach-qong.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mach-vf610.c ARM: imx: use device_initcall for imx_soc_device_init 2020-05-20 23:03:42 +08:00
mach-vpr200.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mm-imx3.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
mm-imx21.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
mm-imx27.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
mmdc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
mx2x.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
mx3x.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mx21.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
mx27.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
mx31.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mx31lilly-db.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mx31lite-db.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mx31moboard-devboard.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mx31moboard-marxbot.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mx31moboard-smartbot.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mx35.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mxc.h ARM: imx: move cpu definitions into a header 2020-05-20 23:03:47 +08:00
pcm037.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
platsmp.c ARM: imx: Add missing of_node_put() 2020-02-18 17:46:08 +08:00
pm-imx5.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
pm-imx6.c ARM: imx: Add missing of_node_put() 2020-02-18 17:46:08 +08:00
pm-imx7ulp.c ARM: imx: Add missing of_node_put() 2020-02-18 17:46:08 +08:00
pm-imx25.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pm-imx27.c ARM: imx: rework mx27_pm_init() call 2016-06-28 10:26:40 +08:00
resume-imx6.S ARM: imx: build v7_cpu_resume() unconditionally 2020-02-13 21:21:44 +08:00
src.c ARM: imx: Drop unnecessary src_base check 2020-03-11 15:18:17 +08:00
ssi-fiq-ksym.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ssi-fiq.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
suspend-imx6.S ARM: imx: build v7_cpu_resume() unconditionally 2020-02-13 21:21:44 +08:00
suspend-imx53.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
system.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
tzic.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
ulpi.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00