The fixed regulator driver doesn't specify any con_id for gpio lookup
so it must be NULL in the table entry.

Fixes: 274e4c33 ("ARM: davinci: da830-evm: add a fixed regulator for ohci-da8xx")
Cc: stable@vger.kernel.org
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

We need to enable status changes for the fixed power supply for the USB
controller.

Fixes: 274e4c33 ("ARM: davinci: da830-evm: add a fixed regulator for ohci-da8xx")
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Instead of directly using the vbus GPIO we should model it as a fixed
regulator. Add all necessary fix-ups for the regulator to be registered
and configure the vbus GPIO as its enable pin.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Some GPIO lookup tables defined in davinci board files are missing
array sentinels. If an entry for given device cannot be found, this
will cause a kernel panic.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

We're going to extend the cp_intc_init() function with a config
structure so we can drop the intc-related fields from davinci_soc_info.

Once we do it, we won't be able to use this routine directly as the
init_irq callback. Wrap the calls in additional helpers that don't
take parameters and can be assigned to init_irq.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: NDavid Lechner <david@lechnology.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

There's no need to have a local header for cp-intc. Move the only
declaration for a public function to common.h. Move all register
offsets into the driver source file and drop all unused defines.
Make cp_intc_of_init() static.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: NDavid Lechner <david@lechnology.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

The existence of irqs.h in mach-davinci/include/mach only makes sense
without SPARSE_IRQ as it's then expected to define NR_IRQS and is
included from asm/irq.h. As we now support SPARSE_IRQ, this header can
be moved to mach-davinci and used as the source of HW interrupt numbers.

While updating the includes in various files - also rearrange the
headers by directory (linux/asm/mach).
Reviewed-by: NDavid Lechner <david@lechnology.com>
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Everything is in place now for SPARSE_IRQ. Select it and set
DAVINCI_INTC_START to NR_IRQS.

We now need to include mach/irqs.h in a couple places as it is no
longer indirectly included after selecting SPARSE_IRQ.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: NDavid Lechner <david@lechnology.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

The logic implemented by these routines now lives in the da8xx-ohci
driver. Remove dead code.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Add lookup entries for vbus and overcurrent gpios for da830-evm.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

We want to work towards phasing out the at24_platform_data structure.
There are few users and its contents can be represented using generic
device properties. Using device properties only will allow us to
significantly simplify the at24 configuration code.

Remove the at24_platform_data structure and replace it with an array
of property entries. Drop the byte_len/size property, as the model name
already implies the EEPROM's size.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Since commit 587f7a69 ("gpio: davinci: Use dev name for label and
automatic base selection") the gpiochip label no longer has an ID
suffix. Update the GPIO lookup entries.

Fixes: 587f7a69 ("gpio: davinci: Use dev name for label and automatic base selection")
Cc: stable@vger.kernel.org
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

We now support nvmem lookups and cell definitions for machine code.
Add relevant data structures for the mac-address stored in at24 EEPROM.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

We now support board files in the aemif driver. Register a platform
device instead of using the handcrafted API in da830-evm.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

This removes the unused legacy clock init code from
arch/arm/mach-davinci/da830.c.
Signed-off-by: NDavid Lechner <david@lechnology.com>
Reviewed-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

This adds the new USB PHY clock init in mach-davinci/usb-da8xx.c using
the new common clock framework drivers.

The #ifdefs are needed to prevent compile errors until the entire
ARCH_DAVINCI is converted.
Signed-off-by: NDavid Lechner <david@lechnology.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

This adds the new board-specific clock init in mach-davinci/da830.c
using the new common clock framework drivers.

The #ifdefs are needed to prevent compile errors until the entire
ARCH_DAVINCI is converted.

Also clean up the #includes since we are adding some here.
Reviewed-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NDavid Lechner <david@lechnology.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

We now have the core_chipsel field in davinci_nand_pdata. Use it
instead of the platform_device id number.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

The GPIO chip is called davinci_gpio.0 in legacy mode. Fix it, so that
mmc can correctly lookup the wp and cp gpios. Also fix the GPIO numbers
as they are not offsets within a bank.

Note that it is the gpio-davinci driver that sets the gpiochip label to
davinci_gpio.0.

Fixes: b5e1438c ("ARM: davinci: da830-evm: use gpio descriptor for mmc pins")
Reported-by: NDavid Lechner <david@lechnology.com>
Reviewed-by: NDavid Lechner <david@lechnology.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

This moves the call of davinci_clk_init() from map_io to init_time for all
boards.

This is the proper place to init clocks. This is also done in preparation
for moving to the common clock framework.

dm646x is a special case because we need to handle different ref_clk rates
depending on which board is being used. The clock init in this case is
modified to set the rate before registering the clocks instead of using
davinci_set_refclk_rate() to recalculate the entire clock tree after all
of the clocks are registered.

Also, the cpu_clks field is removed from struct davinci_soc_info since it
is no longer needed.
Signed-off-by: NDavid Lechner <david@lechnology.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

da830_evm_emif25_pins[] is used only when CONFIG_DA830_UI_NAND
is enabled. It gives the following warning when the config is
switched off. Fix it.

arch/arm/mach-davinci/board-da830-evm.c:245:20: warning: ‘da830_evm_emif25_pins’ defined but not used [-Wunused-const-variable=]
 static const short da830_evm_emif25_pins[] = {
                    ^~~~~~~~~~~~~~~~~~~~~
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

This removes the watchdog reset code. The reset has been moved to
drivers/watchdog/davinci_wdt.c. The watchdog driver registers the reset
with the kernel so defining a reset for each machine is no longer needed.
Signed-off-by: NDavid Lechner <david@lechnology.com>
Acked-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

This converts from using a platform device for the CFGCHIP syscon
regmap to using platform data to pass the regmap to consumers.

A lazy getter function is used so that the regmap will only be
created if it is actually used. This function will also be used
in the clock init when we convert to the common clock framework.

The USB PHY driver is currently the only consumer. This driver is
updated to use platform data to get the CFGCHIP regmap instead of
syscon_regmap_lookup_by_pdevname().
Signed-off-by: NDavid Lechner <david@lechnology.com>
Acked-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

include/linux/i2c is not for client devices. Move the header file to a
more appropriate location.
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Currently the mmc driver is polling the gpio to know if the
card was removed.

By using a gpio descriptor instead of the platform callbacks,
the driver will be able to register the gpio using the mmc core
APIs designed for this purpose.

This has the advantage that an irq will be registered, and
polling is no longer needed. Also, a dependency on platform
callbacks is removed for this board.
Signed-off-by: NAxel Haslam <ahaslam@baylibre.com>
[nsekhar@ti.com: minor commit message edit]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Up to this point, the USB phy clock configuration was handled manually in
the board files and in the usb drivers. This adds proper clocks so that
the usb drivers can use clk_get and clk_enable and not have to worry about
the details. Also, the related code is removed from the board files and
replaced with the new clock registration functions.

This also removes the #if IS_ENABLED(CONFIG_USB_MUSB_HDRC) around the musb
declaration and renames the musb platform device so that we can reference
it from the usb20 clock even if the musb device is not used.
Signed-off-by: NDavid Lechner <david@lechnology.com>
Signed-off-by: NAxel Haslam <ahaslam@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

There is now a proper phy driver for the DA8xx SoC USB PHY. This adds the
platform device declarations needed to use it.
Signed-off-by: NDavid Lechner <david@lechnology.com>
[nsekhar@ti.com: keep usb-davinci.h included in board-da830-evm.c
		 minor subject line adjustment]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

The phy framework requests an optional "phy" regulator. If it does
not find one, it returns -EPROBE_DEFER. In the case of non-DT boot
for the omap138-lcdk board, this would prevent the usb11 phy to probe
correctly and ohci would not enumerate.

By calling regulator_has_full_constraints(), An error would be returned
instead of -EPROBE_DEFER for the regulator, and the probe of the phy driver
can continue normally without a regulator.
Signed-off-by: NAxel Haslam <ahaslam@baylibre.com>
[nsekhar@ti.com: minor commit message updates]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

The CFGCHIP registers are used by a number of devices, so use a syscon
device to share them. The first consumer of this will be the phy-da8xx-usb
driver.

Add the syscon device and register it.
Signed-off-by: NDavid Lechner <david@lechnology.com>
[nsekhar@ti.com: minor commit message fixes]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Some macro for DA8xx CFGCHIP are defined in usb-davinci.h,
but da8xx-cfgchip.h intend to replace them.
Remove duplicated defines between da8xx-cfgchip.h and usb-davinci.h
Signed-off-by: NAlexandre Bailon <abailon@baylibre.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Some header files are never included outside of a mach-davinci
directory and do not need to be made visible in include/mach,
so let's just move them all down one level.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NSekhar Nori <nsekhar@ti.com>

Convert printks to pr_<level> and pr_warning to pr_warn.

Other miscellanea:

o Coalesce formats
o Realign arguments
o Use %s, __func__ instead of embedded function names
o Add pr_fmt to mityomapl138 and mux
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

The problem that the set timings code contains the call of Davinci
platform function davinci_aemif_setup_timing() which is not
accessible if kernel is built for another platform like Keystone.

The Keysone platform is going to use TI AEMIF driver.
If TI AEMIF is used we don't need to set timings and bus width.
It is done by AEMIF driver.

To get rid of davinci-nand driver dependency on aemif platform code
we moved aemif code to davinci platform.

The platform AEMIF code (aemif.c) has to be removed once Davinci
will be converted to DT and use ti-aemif.c driver.
Acked-by: NBrian Norris <computersforpeace@gmail.com>
Signed-off-by: NIvan Khoronzhuk <ivan.khoronzhuk@ti.com>
[nsekhar@ti.com: fixed checkpatch error and a build breakage due to
		 missing include, rebased onto l2-mtd/master]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

This patch proposes to remove the IRQF_DISABLED flag from Davinci code ;)
It's a NOOP since 2.6.35, and will be removed one day
Signed-off-by: NMichael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

This patch moves the at24.h header from include/linux/i2c to
include/linux/platform_data and updates existing support accordingly.

It also fixes the following checkpatch warning:

    WARNING: please, no space before tabs
    #436: FILE: include/linux/platform_data/at24.h:31:
    + * ^Iu8 *mac_addr = ethernet_pdata->mac_addr;$
Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

Register  gpio platform device on DA8XX boards.

While at it, group related include files together.
Signed-off-by: NPhilip Avinash <avinashphilip@ti.com>
[nsekhar@ti.com: remove SoC specific parts from this file.
		 fix compile warnings]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NLad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>

"struct davinci_uart_config" was introduced to specify
UART ports brought out or enabled on the board. But
none of the boards use it for that purpose and we are
not going to add anymore board files, so remove the
structure.
Signed-off-by: NManjunathappa, Prakash <prakash.pm@ti.com>
Suggested-by: NSekhar Nori <nsekhar@ti.com>
[nsekhar@ti.com: split patch to remove davinci_serial_setup_clk()
		 changes.]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Remove specifying mmc controller IP version information via platform
data, instead specify device name so that driver derives it from
platform_device_id table. Also change the clock node name to match
the changed dev_id.
Tested on da850-evm to make sure driver loads without clk_get failures.
Signed-off-by: NManjunathappa, Prakash <prakash.pm@ti.com>
Reviewed-by: NSekhar Nori <nsekhar@ti.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NChris Ball <cjb@laptop.org>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

This patches replaces #if defined() by IS_ENABLED macro, which provides
better readability.
Signed-off-by: NLad, Prabhakar <prabhakar.csengg@gmail.com>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Without this patch, da8xx_register_spi() registers the SPI board info,
the SPI controller, and sets its number of chipselect to the size of the
static spi_board_info array. This is bad because a SPI board info may
declare devices for different SPI buses, and because other code can also
call spi_register_board_info() (e.g. a daughter board might provide
additional SPI devices).

This patch removes the spi_register_board_info() call from
da8xx_register_spi(), renames this last one to da8xx_register_spi_bus()
to be more explicit, takes the number of chipselect as a function
parameter, and updates the impacted board-da8{3,5}0-evm.c, and
board-mityomapl138.c files accordingly. It also sets the SPI platform
data static, as it doesn't need to be exported.
Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com>
[nsekhar@ti.com: fixed conflicts with v3.7-rc7, converted to use pr_warn(),
modified print messages to use __func__]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>