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authorLinus Torvalds <torvalds@linux-foundation.org>2014-10-09 14:58:15 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-09 14:58:15 -0400
commitea584595fc85e65796335033dfca25ed655cd0ed (patch)
tree79d444c507472f6c66d887ad332e7c1784eeb4de /drivers/pinctrl/samsung
parent782d59c5dfc5ac39ac8cfb4c6dd40597938dde9c (diff)
parenta092e19b688be88f7329bd05f90cb92ebe1a4f5b (diff)
downloadop-kernel-dev-ea584595fc85e65796335033dfca25ed655cd0ed.zip
op-kernel-dev-ea584595fc85e65796335033dfca25ed655cd0ed.tar.gz
Merge tag 'gpio-v3.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO changes from Linus Walleij: "This is the bulk of GPIO changes for the v3.18 development cycle: - Increase the default ARCH_NR_GPIO from 256 to 512. This was done to avoid having a custom <asm/gpio.h> header for the x86 architecture - GPIO is custom and complicated enough as it is already! We want to move to a radix to store the descriptors going forward, and finally get rid of this fixed array size altogether. - Endgame patching of the gpio_remove() semantics initiated by Abdoulaye Berthe. It is not accepted by the system that the removal of a GPIO chip fails during eg reboot or shutdown, and therefore the return value has now painfully been refactored away. For special cases like GPIO expanders on a hot-pluggable bus like USB, we may later add some gpiochip_try_remove() call, but for the cases we have now, return values are moot. - Some incremental refactoring of the gpiolib core and ACPI GPIO library for more descriptor usage. - Refactor the chained IRQ handler set-up method to handle also threaded, nested interrupts and set up the parent IRQ correctly. Switch STMPE and TC3589x drivers to use this registration method. - Add a .irq_not_threaded flag to the struct gpio_chip, so that also GPIO expanders that block but are still not using threaded IRQ handlers. - New drivers for the ARM64 X-Gene SoC GPIO controller. - The syscon GPIO driver has been improved to handle the "DSP GPIO" found on the TI Keystone 2 SoC:s. - ADNP driver switched to use gpiolib irqchip helpers. - Refactor the DWAPB driver to support being instantiated from and MFD cell (platform device). - Incremental feature improvement in the Zynq, MCP23S08, DWAPB, OMAP, Xilinx and Crystalcove drivers. - Various minor fixes" * tag 'gpio-v3.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (52 commits) gpio: pch: Build context save/restore only for PM pinctrl: abx500: get rid of unused variable gpio: ks8695: fix 'else should follow close brace '}'' gpio: stmpe: add verbose debug code gpio: stmpe: fix up interrupt enable logic gpio: staticize xway_stp_init() gpio: handle also nested irqchips in the chained handler set-up gpio: set parent irq on chained handlers gpiolib: irqchip: use irq_find_mapping while removing irqchip gpio: crystalcove: support virtual GPIO pinctrl: bcm281xx: make Kconfig dependency more strict gpio: kona: enable only on BCM_MOBILE or for compile testing gpio, bcm-kona, LLVMLinux: Remove use of __initconst gpio: Fix ngpio in gpio-xilinx driver gpio: dwapb: fix pointer to integer cast gpio: xgene: Remove unneeded #ifdef CONFIG_OF guard gpio: xgene: Remove unneeded forward declation for struct xgene_gpio gpio: xgene: Fix missing spin_lock_init() gpio: ks8695: fix switch case indentation gpiolib: add irq_not_threaded flag to gpio_chip ...
Diffstat (limited to 'drivers/pinctrl/samsung')
-rw-r--r--drivers/pinctrl/samsung/pinctrl-exynos5440.c6
-rw-r--r--drivers/pinctrl/samsung/pinctrl-samsung.c15
2 files changed, 5 insertions, 16 deletions
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos5440.c b/drivers/pinctrl/samsung/pinctrl-exynos5440.c
index b995ec2..88acfc0 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos5440.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos5440.c
@@ -874,11 +874,7 @@ static int exynos5440_gpiolib_register(struct platform_device *pdev,
static int exynos5440_gpiolib_unregister(struct platform_device *pdev,
struct exynos5440_pinctrl_priv_data *priv)
{
- int ret = gpiochip_remove(priv->gc);
- if (ret) {
- dev_err(&pdev->dev, "gpio chip remove failed\n");
- return ret;
- }
+ gpiochip_remove(priv->gc);
return 0;
}
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c
index 4a47691..2d37c8f 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.c
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.c
@@ -946,9 +946,7 @@ static int samsung_gpiolib_register(struct platform_device *pdev,
fail:
for (--i, --bank; i >= 0; --i, --bank)
- if (gpiochip_remove(&bank->gpio_chip))
- dev_err(&pdev->dev, "gpio chip %s remove failed\n",
- bank->gpio_chip.label);
+ gpiochip_remove(&bank->gpio_chip);
return ret;
}
@@ -958,16 +956,11 @@ static int samsung_gpiolib_unregister(struct platform_device *pdev,
{
struct samsung_pin_ctrl *ctrl = drvdata->ctrl;
struct samsung_pin_bank *bank = ctrl->pin_banks;
- int ret = 0;
int i;
- for (i = 0; !ret && i < ctrl->nr_banks; ++i, ++bank)
- ret = gpiochip_remove(&bank->gpio_chip);
-
- if (ret)
- dev_err(&pdev->dev, "gpio chip remove failed\n");
-
- return ret;
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank)
+ gpiochip_remove(&bank->gpio_chip);
+ return 0;
}
static const struct of_device_id samsung_pinctrl_dt_match[];
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