| Commit message (Collapse) | Author | Age | Files | Lines |
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Convert the driver to immutable irq-chip with a bit of
intuition.
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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The remove callback is only called after probe completed successfully.
In this case platform_set_drvdata() was called with a non-NULL argument
and so chip is never NULL.
Also note that returning an error code from a remove callback doesn't
result in the device staying bound. It's still removed and devm
callbacks are called.
This is a preparation for making platform remove callbacks return void.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
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of_property_read_u32 returns 0 on success, not true, so we need to
invert the check to actually take over the provided ngpio value.
Fixes: 6a41b6c5fc20 ("gpio: Add xgs-iproc driver")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
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Wherever possible, replace constructs that match either
generic_handle_irq(irq_find_mapping()) or
generic_handle_irq(irq_linear_revmap()) to a single call to
generic_handle_domain_irq().
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes, nothing too exciting about
this.
Some changes hit arch/sh and arch/arm but are well isolated and
acknowledged by the respective arch maintainers.
Core changes:
- Dropped the chained IRQ setup callback into GPIOLIB as we got rid
of the last users of that in this changeset.
New drivers:
- New driver for Ingenic X1830.
- New driver for Freescale i.MX8MP.
Driver enhancements:
- Fix all remaining Intel drivers to pass their IRQ chips along with
the GPIO chips.
- Intel Baytrail allocates its irqchip dynamically.
- Intel Lynxpoint is thoroughly rewritten and modernized.
- Aspeed AST2600 pin muxing and configuration is much improved.
- Qualcomm SC7180 functions are updated and wakeup interrupt map is
provided.
- A whole slew of Renesas SH-PFC cleanups and improvements.
- Fix up the Intel DT bindings to use the generic YAML DT bindings
schema (a first user of this)"
* tag 'pinctrl-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (99 commits)
pinctrl: madera: Remove extra blank line
pinctrl: qcom: Don't lock around irq_set_irq_wake()
pinctrl: mvebu: armada-37xx: use use platform api
gpio: Drop the chained IRQ handler assign function
pinctrl: freescale: Add i.MX8MP pinctrl driver support
dt-bindings: imx: Add pinctrl binding doc for i.MX8MP
pinctrl: tigerlake: Tiger Lake uses _HID enumeration
pinctrl: sunrisepoint: Add Coffee Lake-S ACPI ID
pinctrl: iproc: Use platform_get_irq_optional() to avoid error message
pinctrl: dt-bindings: Fix some errors in the lgm and pinmux schema
pinctrl: intel: Pass irqchip when adding gpiochip
pinctrl: intel: Add GPIO <-> pin mapping ranges via callback
pinctrl: baytrail: Replace WARN with dev_info_once when setting direct-irq pin to output
pinctrl: baytrail: Do not clear IRQ flags on direct-irq enabled pins
pinctrl: sunrisepoint: Add missing Interrupt Status register offset
pinctrl: sh-pfc: Split R-Car H3 support in two independent drivers
pinctrl: artpec6: fix __iomem on reg in set
pinctrl: ingenic: Use devm_platform_ioremap_resource()
pinctrl: ingenic: Factorize irq_set_type function
pinctrl: ingenic: Remove duplicated ingenic_chip_info structures
...
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gpiochip_set_chained_irqchip() would assign a chained handler
to a GPIO chip. We now populate struct gpio_irq_chip for all
chained GPIO irqchips so drop this function.
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200113220800.77817-1-linus.walleij@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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When built into the kernel, the driver causes a link problem:
`iproc_gpio_remove' referenced in section `.data' of drivers/gpio/gpio-xgs-iproc.o: defined in discarded section `.exit.text' of drivers/gpio/gpio-xgs-iproc.o
Remove the incorrect annotation.
Fixes: 6a41b6c5fc20 ("gpio: Add xgs-iproc driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
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Remove .owner field if calls are used which set it automatically
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The table of devicetree identifiers is annotated as __initconst
indicating that it can be discarded after kernel boot but it is
referenced from the driver struct which has no init annotation leading
to a linker warning:
WARNING: vmlinux.o(.data+0x82d58): Section mismatch in reference from the variable bcm_iproc_gpio_driver to the variable .init.rodata:bcm_iproc_gpio_of_match
The variable bcm_iproc_gpio_driver references
the variable __initconst bcm_iproc_gpio_of_match
Since drivers can be probed after init the lack of annotation on the
driver struct is correct so remove the annotation from the match table.
Fixes: 6a41b6c5fc20 ("gpio: Add xgs-iproc driver")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This driver supports the Chip Common A GPIO controller present on a
number of Broadcom switch ASICs with integrated SoCs. The controller is
similar to the pinctrl-nsp-gpio and pinctrl-iproc-gpio blocks but
different enough that a separate driver is required.
This has been ported from Broadcom's XLDK 5.0.3 retaining only the CCA
support (pinctrl-iproc-gpio covers CCB).
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/r/20191024202703.8017-3-chris.packham@alliedtelesis.co.nz
Acked-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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