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If func->pins could not be allocated, one must also free
func variable that was allocated previously.
Signed-off-by: Francois Berder <[email protected]>
Reviewed-by: Quentin Schulz <[email protected]>
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In single_read there is a switch block with a default label. All cases
in the switch block, including the default, return directly. So any code
following the switch block is unreachable. Remove the unreachable code.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <[email protected]>
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As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.
This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Remove <common.h> from this driver directory and when needed
add missing include files directly.
Reviewed-by: Peter Robinson <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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pinctrl-single uses fdt_addr_t and phys_addr_t inconsistently, but both
are wrong to be passed to readb() etc., which expect a pointer or
pointer-sized integer. Change the driver to use
dev_read_addr_size_index_ptr(), so we consistently deal with void*
(except for the sandbox case and single_get_pin_muxing()).
Signed-off-by: Matthias Schiffer <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Add missing mapmem.h header:
Signed-off-by: Simon Glass <[email protected]>
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This converts 1 usage of this option to the non-SPL form, since there is
no SPL_SANDBOX defined in Kconfig
Signed-off-by: Simon Glass <[email protected]>
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Changes to the am33xx device (33e9021a) trees have been merged in from
the upstream linux kernel which now means the device tree uses the new
pins format (as of 5.10) where the confinguration can be stores as a
separate configuration value and pin mux mode which are then OR'd
together.
This patch adds support for the new format to u-boot so that
pinctrl-cells is now respected when reading in pinctrl-single,pins
Signed-off-by: Anthony Bagwell <[email protected]>
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Add pinctrl_ops->request api to configure pctrl
pad register in gpio mode.
Signed-off-by: Rayagonda Kokatanur <[email protected]>
Signed-off-by: Bharat Gooty <[email protected]>
Acked-by: Rayagonda Kokatanur <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Parse different gpio properties from dt as part of probe
function. This detail is required to enable pinctrl pad
later when gpio lines are requested.
Signed-off-by: Rayagonda Kokatanur <[email protected]>
Signed-off-by: Bharat Gooty <[email protected]>
Acked-by: Rayagonda Kokatanur <[email protected]>
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The width is set up in single_of_to_plat() and can only have three values,
all of which result in a non-zero divisor. Add a comment.
Signed-off-by: Simon Glass <[email protected]>
Reported-by: Coverity (CID: 331154)
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If reg property of pinctrl-single node requires address translation then
probe fails with following message:
single-pinctrl pinctrl@4301c000: failed to get base register size
This is because driver uses dev_read_addr_size() to get size which also
tries to fetch untranslated addr and fails.
Fix this by using dev_read_addr_size_index() which takes care of address
translation and also makes following dev_read_addr() call redundant.
This fixes Ethernet failures on TI's AM654 based EVMs due to lack of
pinmux configuration.
Fixes: 9fd8a430f3 ("pinctrl: single: get register area size by device API")
Signed-off-by: Vignesh Raghavendra <[email protected]>
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As reported by Coverity Scan for Das U-Boot, the 'less-than-zero'
comparison of an unsigned value is never true.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Pratyush Yadav <[email protected]>
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Otherwise it can generate a division by zero, which has an undefined
behavior.
Signed-off-by: Dario Binacchi <[email protected]>
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The test adds two pinmux nodes to the device tree, one to test when a
register changes only one pin's mux (pinctrl-single,pins), and the other
to test when more than one pin's mux is changed (pinctrl-single,bits).
This required replacing the controller's register access functions when
the driver is used on sandbox.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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It allows to display the muxing of a given pin. Inspired by more recent
versions of the Linux driver, in addition to the address and the value
of the configuration register I added the pin function retrieved from
the DT. In doing so, the information displayed does not depend on the
platform, being a generic type driver, and it can be useful for debug
purposes.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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It returns the name of the requested pin.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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It returns the number of selectable pins.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The configuration of pinmux registers was implemented with duplicate
code which can be removed by adding two functions for read/write access.
Access to 8-bit registers has also been added.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The patch is inspired by more recent versions of the Linux driver.
Replacing the default value 0xffffffff of the function mask with 0 is
certainly more conservative in case the "pinctrl-single,function-mask"
DT property is missing.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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In more recent versions of the Linux kernel the driver's probe function
returns an error if the "pinctrl-single,register-width" DT property is
missing. The lack of this information, in fact, does not allow to know
whether to access the registers of the controller at 8, 16, ... bits.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Use dev_read_addr_size to get size of the controller's register area.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Pratyush Yadav <[email protected]>
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The dev_dbg(dev, " reg/val 0x%pa/0x%08x\n", ®, val); prints the 'reg'
address preceded by the prefix 0x0x instead of 0x. This because the
printf '%pa' format specifier already prepends the prefix '0x' to the
address displayed.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Pratyush Yadav <[email protected]>
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The pinmux configuration DT node of a peripheral does not define a
physical address but an offset. Only by adding it to the base address of
the controller it is possible to calculate the physical address of the
register to be configured. Printing an offset also requires a different
formatting option than a physical address.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Pratyush Yadav <[email protected]>
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The 'n' variable is used as a loop counter, not as a physical address,
and is used in a comparison with an int. So it makes sense to change
its type from phys_addr_t to int.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Pratyush Yadav <[email protected]>
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U-Boot adopted the kernel-doc annotation style.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Most drivers use these access methods but a few do not. Update them.
In some cases the access is not permitted, so mark those with a FIXME tag
for the maintainer to check.
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Acked-by: Pratyush Yadav <[email protected]>
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This name is far too long. Rename it to remove the 'data' bits. This makes
it consistent with the platdata->plat rename.
Signed-off-by: Simon Glass <[email protected]>
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We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).
Rename some of the latter variables to end with 'plat' for consistency.
Signed-off-by: Simon Glass <[email protected]>
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This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.
Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.
Signed-off-by: Simon Glass <[email protected]>
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commit 719cab6d2e2bf ("dm: pinctrl: convert pinctrl-single to livetree")
converted pinctrl driver to livetree. In this conversion, the call to
read pinctrl-single,pins/bits property is provided with pinctrl device
pointer instead of pinctrl config pointer. Because of this none of the
pins gets configured. Fix it by passing the right udevice pointer.
Fixes: 719cab6d2e2bf ("dm: pinctrl: convert pinctrl-single to livetree")
Reported-by: Tom Rini <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
Signed-off-by: Lokesh Vutla <[email protected]>
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Convert 'pinctrl-single' using livetree functions
- dev_read_prop
- dev_read_u32_default
- dev_read_u32_array
- dev_read_bool
- dev_read_addr
and get rid of DECLARE_GLOBAL_DATA_PTR.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Patrick Delaunay <[email protected]>
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At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.
Move the compatibility features into a separate header file.
Signed-off-by: Simon Glass <[email protected]>
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The TI Davinci (da850/l138/am1808) use pinctrl-single,bits for
pinmuxing peripherals. This patch allosw the pinctrl-single
driver to parse the pinctrl-single,bits options and correctly
setup devices.
Signed-off-by: Adam Ford <[email protected]>
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When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Following build warning appears when pinctrl-single is built for ARM64:
In file included from drivers/pinctrl/pinctrl-single.c:10:0:
drivers/pinctrl/pinctrl-single.c: In function ‘single_configure_pins’:
./arch/arm/include/asm/io.h:43:28: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
#define __arch_getw(a) (*(volatile unsigned short *)(a))
Fix this by using phys_addr_t for variable reg instead of u32
Signed-off-by: Lokesh Vutla <[email protected]>
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When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <[email protected]>
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Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.
This commit moves the header code:
include/libfdt.h -> include/linux/libfdt.h
include/libfdt_env.h -> include/linux/libfdt_env.h
and replaces include directives:
#include <libfdt.h> -> #include <linux/libfdt.h>
#include <libfdt_env.h> -> #include <linux/libfdt_env.h>
Reported-by: Thomas Petazzoni <[email protected]>
Signed-off-by: Masahiro Yamada <[email protected]>
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At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.
Signed-off-by: Simon Glass <[email protected]>
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These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.
In the end we will have:
1. dev_read_addr...() - works on devices, supports flat/live tree
2. devfdt_get_addr...() - current functions, flat tree only
3. of_get_address() etc. - new functions, live tree only
All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.
Note this involves changing some dead code - the imx_lpi2c.c file.
Signed-off-by: Simon Glass <[email protected]>
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This header includes things that are needed to make driver build. Adjust
existing users to include that always, even if other dm/ includes are
present
Signed-off-by: Simon Glass <[email protected]>
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Enables the pinctrl-single driver to support 16-bit registers. Only
32-bit registers were supported previously. Reduced width registers are
required for some platforms, such as OMAP.
Signed-off-by: James Balean <[email protected]>
Cc: Felix Brack <[email protected]>
Cc: Simon Glass <[email protected]>
Reviewed-by: Felix Brack <[email protected]>
Tested-by: Felix Brack <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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This patch adds a pin controller driver supporting devices
using a single configuration register per pin.
Signed-off-by: Felix Brack <[email protected]>
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