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Core in spi_register_driver() already sets the .owner, so driver
does not need to.
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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This updates the driver to gpiod API, and removes yet another use of
of_get_named_gpio().
Signed-off-by: Andy Shevchenko <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The value returned by an spi driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)
So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.
Signed-off-by: Uwe Kleine-König <[email protected]>
Acked-by: Marc Kleine-Budde <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Acked-by: Jérôme Pouiller <[email protected]>
Acked-by: Miquel Raynal <[email protected]>
Acked-by: Jonathan Cameron <[email protected]>
Acked-by: Claudius Heine <[email protected]>
Acked-by: Stefan Schmidt <[email protected]>
Acked-by: Alexandre Belloni <[email protected]>
Acked-by: Ulf Hansson <[email protected]> # For MMC
Acked-by: Marcus Folkesson <[email protected]>
Acked-by: Łukasz Stelmach <[email protected]>
Acked-by: Lee Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
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If something goes wrong in the remove callback, returning an error code
just results in an error message. The device still disappears.
So don't skip disabling the regulator in st95hf_remove() if resetting
the controller via spi fails. Also don't return an error code which just
results in two error messages.
Signed-off-by: Uwe Kleine-König <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Do not include unnecessary headers.
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Neither the core nor the drivers modify the passed pointer to struct
nfc_digital_ops, so make it a pointer to const for correctness and safety.
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Use tabs to indent instead of spaces. No functional change.
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The driver can match either via OF or ACPI ID tables. If one
configuration is disabled, the table will be unused:
drivers/nfc/st95hf/core.c:1059:34: warning:
‘st95hf_spi_of_match’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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In function st95hf_in_send_cmd, the variable rc is assigned then goto
error label, which just returns rc, so we use return to replace it.
Since error label only used once in the function, so we remove error label.
Signed-off-by: wengjianfeng <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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When down_killable() fails, skb_resp should be freed
just like when st95hf_spi_send() fails.
Signed-off-by: Dinghao Liu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The return statement is indented incorrectly, add in a missing
tab and remove an extraneous space after the return
Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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There is a spelling mistake in a dev_err message. Fix it.
Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation this program
is distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not see http www gnu org
licenses
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 33 file(s).
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Allison Randal <[email protected]>
Reviewed-by: Kate Stewart <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Fixes gcc '-Wunused-but-set-variable' warning:
drivers/nfc/st95hf/core.c: In function 'st95hf_irq_thread_handler':
drivers/nfc/st95hf/core.c:786:26: warning:
variable 'nfcddev' set but not used [-Wunused-but-set-variable]
drivers/nfc/st95hf/core.c:784:17: warning:
variable 'dev' set but not used [-Wunused-but-set-variable]
They are never used since introduction in
commit cab47333f0f7 ("NFC: Add STMicroelectronics ST95HF driver")
Signed-off-by: YueHaibing <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Add missing <of_device_id> table for SPI driver relying on SPI
device match since compatible is in a DT binding or in a DTS.
Before this patch:
modinfo drivers/nfc/st95hf/st95hf.ko | grep alias
alias: spi:st95hf
After this patch:
modinfo drivers/nfc/st95hf/st95hf.ko | grep alias
alias: spi:st95hf
alias: of:N*T*Cst,st95hfC*
alias: of:N*T*Cst,st95hf
Reported-by: Javier Martinez Canillas <[email protected]>
Signed-off-by: Daniel Gomez <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Joe and Bjørn suggested that it'd be nicer to not have the
cast in the fairly common case of doing
*(u8 *)skb_put(skb, 1) = c;
Add skb_put_u8() for this case, and use it across the code,
using the following spatch:
@@
expression SKB, C, S;
typedef u8;
identifier fn = {skb_put};
fresh identifier fn2 = fn ## "_u8";
@@
- *(u8 *)fn(SKB, S) = C;
+ fn2(SKB, C);
Note that due to the "S", the spatch isn't perfect, it should
have checked that S is 1, but there's also places that use a
sizeof expression like sizeof(var) or sizeof(u8) etc. Turns
out that nobody ever did something like
*(u8 *)skb_put(skb, 2) = c;
which would be wrong anyway since the second byte wouldn't be
initialized.
Suggested-by: Joe Perches <[email protected]>
Suggested-by: Bjørn Mork <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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It seems like a historic accident that these return unsigned char *,
and in many places that means casts are required, more often than not.
Make these functions (skb_put, __skb_put and pskb_put) return void *
and remove all the casts across the tree, adding a (u8 *) cast only
where the unsigned char pointer was used directly, all done with the
following spatch:
@@
expression SKB, LEN;
typedef u8;
identifier fn = { skb_put, __skb_put };
@@
- *(fn(SKB, LEN))
+ *(u8 *)fn(SKB, LEN)
@@
expression E, SKB, LEN;
identifier fn = { skb_put, __skb_put };
type T;
@@
- E = ((T *)(fn(SKB, LEN)))
+ E = fn(SKB, LEN)
which actually doesn't cover pskb_put since there are only three
users overall.
A handful of stragglers were converted manually, notably a macro in
drivers/isdn/i4l/isdn_bsdcomp.c and, oddly enough, one of the many
instances in net/bluetooth/hci_sock.c. In the former file, I also
had to fix one whitespace problem spatch introduced.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This fixes a build error on the mn10300 architecture:
drivers/nfc/st95hf/core.c:765:20: error: conflicting types for 'irq_handler'
static irqreturn_t irq_handler(int irq, void *st95hfcontext)
^
In file included from arch/mn10300/include/asm/reset-regs.h:16:0,
from arch/mn10300/include/asm/irq.h:18,
from include/linux/irq.h:26,
from arch/mn10300/include/asm/hardirq.h:16,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from drivers/nfc/st95hf/core.c:23:
arch/mn10300/include/asm/exceptions.h:107:24: note: previous declaration of 'irq_handler' was here
extern asmlinkage void irq_handler(void);
Signed-off-by: Shikha Singh <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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This driver supports STMicroelectronics NFC Transceiver
"ST95HF", in in initiator role to read/write ISO14443 Type 4A,
ISO14443 Type 4B and ISO15693 Type5 tags.
The ST95HF datasheet is available here:
http://www.st.com/web/en/resource/technical/document/datasheet/DM00102056.pdf
Signed-off-by: Shikha Singh <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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