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2020-08-20ARM: s3c: move into a common directoryArnd Bergmann
s3c24xx and s3c64xx have a lot in common, but are split across three separate directories, which makes the interaction of the header files more complicated than necessary. Move all three directories into a new mach-s3c, with a minimal set of changes to each file. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [krzk: Rebase, add s3c24xx and s3c64xx suffix to several files, add SPDX headers to new files, remove plat-samsung from MAINTAINERS] Co-developed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> https://lore.kernel.org/r/20200806182059.2431-39-krzk@kernel.org
2020-08-20ARM: s3c24xx: stop including mach/hardware.h from mach/io.hArnd Bergmann
A number of other files rely on mach/map.h to be indirectly included from mach/io.h through mach/hardware.h. Reduce this to the minimal plat/map-base.h and add explicit includes everywhere else. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200806182059.2431-38-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-20cpufreq: s3c24xx: move low-level clk reg access into platform codeArnd Bergmann
Rather than have the cpufreq drivers touch include the common headers to get the constants, add a small indirection. This is still not the proper way that would do this through the common clk API, but it lets us kill off the header file usage. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://lore.kernel.org/r/20200806182059.2431-37-krzk@kernel.org [krzk: Rebase and fix -Wold-style-definition] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-20ARM: s3c: remove cpufreq header dependenciesArnd Bergmann
The cpufreq drivers are split between the machine directory and the drivers/cpufreq directory. In order to share header files after we convert s3c to multiplatform, those headers have to live in a different global location. Move them to linux/soc/samsung/ in lack of a better place. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://lore.kernel.org/r/20200806182059.2431-35-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-20fbdev: s3c2410fb: remove mach header dependencyArnd Bergmann
The s3c2410fb driver is too deeply intertwined with the s3c24xx platform code. Change it in a way that avoids the use of platform header files but having all interface data in a platform_data header, and the private register definitions next to the driver itself. One ugly bit here is that the driver pokes directly into gpio registers, which are owned by another driver. Passing the mapped addresses in platform_data is somewhat suboptimal, but it is a small improvement over the previous version. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200806182059.2431-33-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-20ARM: s3c24xx: bast: avoid irq_desc array usageArnd Bergmann
Once we move to sparse irqs, the irq_desc[] array is no longer accessible, so replace the two uses in bast-irq.c. The first one can use irq_to_desc(), the second one seems completely unneeded as we already have a pointer to the correct descriptor. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200806182059.2431-32-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-20ARM: s3c24xx: spi: avoid hardcoding fiq number in driverArnd Bergmann
The IRQ_EINT0 constant is a platform detail that is defined in mach/irqs.h and not visible to drivers once that header is made private. Since the same calculation already happens in s3c24xx_set_fiq, just return the value from there. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20200806182059.2431-31-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-20ARM: s3c24xx: include mach/irqs.h where neededArnd Bergmann
Preparing for a later conversion to sparse IRQs, this ensures that the mach/irqs.h header is still visible in files that reference an IRQ number. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200806182059.2431-30-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-20ARM: s3c24xx: move s3cmci pinctrl handling into board filesArnd Bergmann
Rather than call the internal s3c_gpio_cfgall_range() function through a platform header, move the code into the set_power callback that is already exported by the board, and add a default implementation. In DT mode, the code already does not set the pin config, so nothing changes there. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20200806182059.2431-29-krzk@kernel.org [krzk: Rebase and correct set_power in mach-h1940.c] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-20ARM: s3c24xx: move iis pinctrl config into boardsArnd Bergmann
The s3c_gpio_cfgall_range() function is an internal interface of the samsung gpio driver and should not be called directly by drivers, so move the iis pin initialization into the boards. This means the pin configuration is only run once at early boot, rather than each time the driver binds, but the effect should be the same. Note that the s3c2412-i2s driver has no boards using it in mainline linux, the driver gets selected for the jive machine but is never instantiated. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20200806182059.2431-28-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-20Merge tag 'samsung-platdrv-boards' of ↵Krzysztof Kozlowski
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into next/soc-s3c-cleanup Pull Samsung S3C ASoC cleanup patches from Mark Brown. These patches are part of the entire cleanup series so all further work depends on them.
2020-08-19ARM: s3c24xx: move spi fiq handler into platformArnd Bergmann
The fiq handler needs access to some register definitions that should not be used directly by device drivers. Since this is closely related to the irqchip driver anyway, move it into the same place. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [krzk: Add a header guard in include/linux/spi/s3c24xx-fiq.h, fix SPDX comment style, update maintainer's entry] Co-developed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200806182059.2431-23-krzk%40kernel.org Acked-by: Mark Brown <broonie@kernel.org>
2020-08-19ARM: s3c24xx: move irqchip driver back into platformArnd Bergmann
It was a good idea to move it out at first, but the irqchip code is still tightly connected to the s3c24xx platform code and uses multiple internal header files, so just move it back for the time being to avoid those dependencies. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200806182059.2431-21-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19ARM: s3c24xx: move regs-spi.h into spi driverArnd Bergmann
The file is mostly specific to the driver, the few bits that are actually used by the platform code get moved to mach/map.h instead. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20200806182059.2431-20-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19ASoC: samsung: rx1950: turn into platform driverArnd Bergmann
Avoid machine specific headers by using a gpio lookup table combined with a platform_driver for this board. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200806182059.2431-26-krzk@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-19ASoC: samsung: neo1973: turn into platform driverArnd Bergmann
Avoid machine specific headers by using a gpio lookup table combined with a platform_driver for this board. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200806182059.2431-25-krzk@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-19ASoC: samsung: h1940: turn into platform driverArnd Bergmann
Avoid machine specific headers by using a gpio lookup table combined with a platform_driver for this board. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200806182059.2431-24-krzk@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-19ARM: samsung: make pm-debug platform independentArnd Bergmann
The pm-debug code is one of the few things shared between s3c24xx/s3c64xx and the newer s5pv210. In order to make s5pv210 independent of plat-samsung, change the common bits of this code to no longer reference the s3c specific bits. In particular, all the CPU checks need to be moved out of the common code into platform specific files. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200806182059.2431-12-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19ARM: samsung: remove s3c_pm_debug_init()Arnd Bergmann
On s3c24xx and s3c64xx, this is just a wrapper around s3c_pm_debug_init_uart(), but this function does not exist on s5pv210, which always uses an empty stub as CONFIG_SAMSUNG_ATAGS is normally not set. In a configuration that supports both s5pv210 and s3c64xx, we would always call the s3c64xx function, which is probably incorrect when running on s5pv210. Remove the function call completely on s5pv210 and skip the wrapper on s3c as a cleanup. As a side-effect, the s3c64xx behavior is now always the same, regardless of whether it is a DT-only configuration or both DT and ATAGS are supported for booting. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200806182059.2431-11-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19usb: gadget: s3c-hsudc: remove platform header dependencyArnd Bergmann
There is no real phy driver, so s3c-hsudc just pokes the registers itself. Improve this a little by making it a platform data callback like we do for gpios. There is only one board using this driver, and it's unlikely that another would be added, so this is a minimal workaround. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200806182059.2431-9-krzk@kernel.org [krzk: Include regs-s3c2443-clock.h in ifdef to fixup build on s3c6400] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19ARM: s3c24xx: simplify mach/io.hArnd Bergmann
s3c24xx has a custom implementation of the inb/outb family of I/O accessors, implementing both general register access and ISA I/O port through a multiplexer. As far as I can tell, the first case has never been needed, and certainly is not used now, as drivers only use inb/outb to actually driver ISA or PCI port I/O. Similarly, the special ISA support is limited to a single machine, the Simtec Electronics BAST (EB2410ITX) with its PC/104 expansion connector, all other machines could simply use the generic implementation from asm/io.h that expects a single memory-mapped address range for byte, word and dword access. As no other machines besides BAST actually selects CONFIG_ISA, this is likely not even necessary. As a cleanup, remove support for the non-ISA access from the helpers, and make the ISA access use the virtual address window that we use elsewhere for PCI I/O ports. In configurations without the BAST machine, this now falls back on the generic implementation from asm/io.h, but the mach/io.h header is still relied on to include a number of other header files implicitly. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200806182059.2431-7-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19ARM: s3c24xx: pass pointer to clk driver via platform dataKrzysztof Kozlowski
Passing pointers directly as platform data is fragile and undocumented. Better to create a platform data structure which explicitly documents what is passed to the driver. Suggested-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20200806182059.2431-6-krzk@kernel.org
2020-08-19ARM: s3c24xx: make S3C24XX_MISCCR access indirectArnd Bergmann
The clk driver uses both a function call into an exported platform file and a direct register access to a hardcoded virtual address for accessing the MISCCR register, both become are a problem for a multiplatform kernel because of the header file dependency. Make this an indirect function call through platform data instead. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20200806182059.2431-5-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19ARM: s3c24xx: iotiming: make functions staticArnd Bergmann
There are two functions in this file that are never called from anywhere else, so they should be static to allow the compiler to optimize it better and not pollute the global namespace. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200806182059.2431-4-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19ARM: s3c24xx: fix mmc gpio lookup tablesArnd Bergmann
The gpio controller names differ between s3c24xx and s3c64xx, and it seems that these all got the wrong names, using GPx instead of GPIOx. Fixes: d2951dfa070d ("mmc: s3cmci: Use the slot GPIO descriptor") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200806182059.2431-3-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19ARM: s3c24xx: drop s3c-camif setup platform codeKrzysztof Kozlowski
The s3c-camif driver setup platform code does not have any users so it can be safely removed. Along with the code W=1 compile warnings go away: arch/arm/mach-s3c24xx/setup-camif.c:28:5: warning: no previous prototype for 's3c_camif_gpio_get' [-Wmissing-prototypes] arch/arm/mach-s3c24xx/setup-camif.c:56:6: warning: no previous prototype for 's3c_camif_gpio_put' [-Wmissing-prototypes] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-17ARM: s3c: remove unneeded machine header includesKrzysztof Kozlowski
Not all units use the contents of mach/hardware.h and mach/dma.h. Remove these includes when not needed. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de>
2020-08-17ARM: s3c24xx: ts: document function argumentKrzysztof Kozlowski
Document function argument in kerneldoc comment to fix W=1 compile warning: arch/arm/mach-s3c24xx/setup-ts.c:27: warning: Function parameter or member 'dev' not described in 's3c24xx_ts_cfg_gpio' Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-17ARM: s3c24xx: ts: include platform data headerKrzysztof Kozlowski
Include platform_data/touchscreen-s3c2410.h header in the touchscreen code to bring the prototypes of defined functions and fix W=1 compile warning: arch/arm/mach-s3c24xx/setup-ts.c:24:6: warning: no previous prototype for 's3c24xx_ts_cfg_gpio' [-Wmissing-prototypes] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-17ARM: s3c24xx: sdhci: include plat/sdhci.h headerKrzysztof Kozlowski
Include plat/sdhci.h header in the sdhci code to bring the prototypes of defined functions and fix W=1 compile warnings: arch/arm/mach-s3c24xx/setup-sdhci-gpio.c:21:6: warning: no previous prototype for 's3c2416_setup_sdhci0_cfg_gpio' [-Wmissing-prototypes] arch/arm/mach-s3c24xx/setup-sdhci-gpio.c:26:6: warning: no previous prototype for 's3c2416_setup_sdhci1_cfg_gpio' [-Wmissing-prototypes] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-17ARM: s3c24xx: include common.h header in s3c2443.cKrzysztof Kozlowski
Include common.h header in the s3c2443.c to bring the prototypes of defined functions and fix W=1 compile warnings: arch/arm/mach-s3c24xx/s3c2443.c:60:12: warning: no previous prototype for 's3c2443_init' [-Wmissing-prototypes] arch/arm/mach-s3c24xx/s3c2443.c:77:13: warning: no previous prototype for 's3c2443_init_uarts' [-Wmissing-prototypes] arch/arm/mach-s3c24xx/s3c2443.c:88:13: warning: no previous prototype for 's3c2443_map_io' [-Wmissing-prototypes] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-17ARM: s3c: remove plat-samsung/.../samsung-time.hKrzysztof Kozlowski
Remove the arch/arm/plat-samsung/include/plat/samsung-time.h header and move the contents to common.h headers in mach-s3c24xx and mach-s3c64xx. The definition of declared functions is already in common.c in mach directories, so it is logically to put declaration next to them. This is also one step further towards removal of plat-samsung directory and it fixes W=1 build warnings: arch/arm/mach-s3c64xx/common.c:174:13: warning: no previous prototype for 'samsung_set_timer_source' [-Wmissing-prototypes] arch/arm/mach-s3c64xx/common.c:180:13: warning: no previous prototype for 'samsung_timer_init' [-Wmissing-prototypes] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
2020-08-17clk: samsung: s3c24xx: declare s3c24xx_common_clk_init() in shared headerKrzysztof Kozlowski
The s3c2410_common_clk_init() and others are defined and used by the clk-s3c24xx driver and also used in the mach-s3c24xx machine code. Move the declaration to a header to fix W=1 build warnings: drivers/clk/samsung/clk-s3c2410.c:320:13: warning: no previous prototype for 's3c2410_common_clk_init' [-Wmissing-prototypes] 320 | void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f, drivers/clk/samsung/clk-s3c2412.c:205:13: warning: no previous prototype for 's3c2412_common_clk_init' [-Wmissing-prototypes] 205 | void __init s3c2412_common_clk_init(struct device_node *np, unsigned long xti_f, drivers/clk/samsung/clk-s3c2443.c:341:13: warning: no previous prototype for 's3c2443_common_clk_init' [-Wmissing-prototypes] 341 | void __init s3c2443_common_clk_init(struct device_node *np, unsigned long xti_f, Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org>
2020-08-17ARM: s3c24xx: demote kerneldoc commentKrzysztof Kozlowski
Remove kerneldoc annotation to fix warning: arch/arm/mach-s3c24xx/mach-h1940.c:185: warning: cannot understand function prototype: 'struct s3c2410fb_display h1940_lcd __initdata = ' Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Randy Dunlap <rdunlap@infradead.org>
2020-07-20ARM: s3c24xx: Replace HTTP links with HTTPS onesAlexander A. Klimov
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-09ARM: s3c24xx: leds: Convert to use GPIO descriptorsLinus Walleij
This converts the s3c24xx LED driver to use GPIO descriptors and also modify all board files to account for these changes by registering the appropriate GPIO tables for each board. The driver was using a custom flag to indicate open drain (tristate) but this can be handled by standard descriptor machine tables. The driver was setting non-pull-up for the pin using the custom S3C24xx GPIO API, but this is a custom pin control system used by the S3C24xx and no generic GPIO function, so this has simply been pushed back into the respective board files. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-03-18backlight: pwm_bl: Switch to full GPIO descriptorLinus Walleij
The PWM backlight still supports passing a enable GPIO line as platform data using the legacy <linux/gpio.h> API. It turns out that ever board using this mechanism except one is pass .enable_gpio = -1. So we drop all these cargo-culted -1's from all instances of this platform data in the kernel. The remaning board, Palm TC, is converted to pass a machine descriptior table with the "enable" GPIO instead, and delete the platform data entry for enable_gpio and the code handling it and things should work smoothly with the new API. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Krzysztof Kozlowski <krzk@kernel.org Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-21ARM: s3c24xx: Switch to atomic pwm API in rx1950Uwe Kleine-König
Stop using the legacy PWM API which only still exists because there are some users left. Note this change make use of the fact that the value of struct pwm_state::duty_cycle doesn't matter for a disabled PWM and so its value can stay constant simplifying the code a bit. A side effect of the conversion is that the pwm isn't stopped in rx1950_backlight_init() by the call to pwm_apply_args() just before reenabling it when rx1950_lcd_power(1) is called. Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org> Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-01-07ARM: samsung: Rename Samsung and Exynos to lowercaseKrzysztof Kozlowski
Fix up inconsistent usage of upper and lowercase letters in "Samsung" and "Exynos" names. "SAMSUNG" and "EXYNOS" are not abbreviations but regular trademarked names. Therefore they should be written with lowercase letters starting with capital letter. The lowercase "Exynos" name is promoted by its manufacturer Samsung Electronics Co., Ltd., in advertisement materials and on website. Although advertisement materials usually use uppercase "SAMSUNG", the lowercase version is used in all legal aspects (e.g. on Wikipedia and in privacy/legal statements on https://www.samsung.com/semiconductor/privacy-global/). Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-10-28ARM: s3c: Rename s3c64xx_spi_setname() functionKrzysztof Kozlowski
The name s3c64xx_spi_setname() suggests it is shared with S3C64xx platform, but except of contents it is not. It is called only by S3C24xx code, so make it clear in the name. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-07-15docs: arm: convert docs to ReST and rename to *.rstMauro Carvalho Chehab
Converts ARM the text files to ReST, preparing them to be an architecture book. The conversion is actually: - add blank lines and identation in order to identify paragraphs; - fix tables markups; - add some lists markups; - mark literal blocks; - adjust title markups. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Reviewed-by Corentin Labbe <clabbe.montjoie@gmail.com> # For sun4i-ss
2019-05-14treewide: replace #include <asm/sizes.h> with #include <linux/sizes.h>Masahiro Yamada
Since commit dccd2304cc90 ("ARM: 7430/1: sizes.h: move from asm-generic to <linux/sizes.h>"), <asm/sizes.h> and <asm-generic/sizes.h> are just wrappers of <linux/sizes.h>. This commit replaces all <asm/sizes.h> and <asm-generic/sizes.h> to prepare for the removal. Link: http://lkml.kernel.org/r/1553267665-27228-1-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-07ARM: s3c24xx: Fix boolean expressions in osiris_dvs_notifyGustavo A. R. Silva
Fix boolean expressions by using logical AND operator '&&' instead of bitwise operator '&'. This issue was detected with the help of Coccinelle. Fixes: 4fa084af28ca ("ARM: OSIRIS: DVS (Dynamic Voltage Scaling) supoort.") Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> [krzk: Fix -Wparentheses warning] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-12-17mmc: s3cmci: Use the slot GPIO descriptorLinus Walleij
Simplify things by making the S3CMCI driver just use slot GPIO with descriptors instead of passing around the global GPIO numbers that we want to get rid of. Getting the names of the GPIO chips into the machine descriptor tables was a bit of a challenge but I think I have them right. The platform data supports passing in inversion flags, but no platform is using them, and it is highly unlikely that we will add more, so drop them. The long term plan is to let the inversion flags on the GPIO machine descriptor do the job. The lines are flagged as GPIO_ACTIVE_[LOW|HIGH] as that is what they are, and since we can now rely on the descriptors to have the right polarity, we set the "override_active_level" to false in mmc_gpiod_request_cd() and mmc_gpiod_request_ro(). Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Sergio Prado <sergio.prado@e-labworks.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-09-19ARM: s3c24xx: Restore proper usage of pr_info/pr_contCedric Roux
Fix wrong usage of pr_info introduced by the commit e728e4f20100 ("ARM: s3c24xx: formatting cleanup in mach-mini2440.c"). Since the idea is to print on a single line, pr_cont has to be used. Signed-off-by: Cedric Roux <sed@free.fr> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-09-10ARM: s3c24xx: Correct SD card write protect detection on Mini2440Cedric Roux
The mini2440 computer uses "active high" to signal that the "write protect" of the inserted MMC is set. The current code uses the opposite, leading to a wrong detection of write protection. The solution is simply to use ".wprotect_invert = 1" in the description of the MMC. Signed-off-by: Cedric Roux <sed@free.fr> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-09-10ARM: s3c24xx: Consistently use tab for indenting member assignmentsKrzysztof Kozlowski
Code was mixing spaces and tabs for indenting members in structures. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-09-10ARM: s3c24xx: formatting cleanup in mach-mini2440.cCedric Roux
Running: scripts/checkpatch.pl -f arch/arm/mach-s3c24xx/mach-mini2440.c revealed several errors and warnings. They were all removed, except one which is an #if 0 around the declaration of a gpio pin. This needs some more investigation and I prefer to let it here. This is not some dead code. 'printk' was replaced by 'pr_info'. Signed-off-by: Cedric Roux <sed@free.fr> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-08-30ARM: s3c24xx: Remove empty gta02_pmu children probeKrzysztof Kozlowski
Since commit 67e67df8da72 ("gta02: Use pcf50633 backlight driver instead of platform backlight driver.") the list of gta02 pmu children is empty therefore looping through it and adding devices is a no-op. This also fixes the GCC v8.1 W=1 warning: arch/arm/mach-s3c24xx/mach-gta02.c: In function 'gta02_pmu_attach_child_devices': arch/arm/mach-s3c24xx/mach-gta02.c:538:16: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++) ^ Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-06-25ARM: s3c24xx: Fix typo in guard macro of s3c2412.hDenis Efremov
The guard macro __ARCH_ARM_REGS_S3C24XX_S3C2412_H in header s3c2412.h doesn't match the #ifndef macro __ARCH_ARM_MACH_S3C24XX_S3C2412_H. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Denis Efremov <efremov@linux.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>