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gpio: Use callback presence to determine need of valid_mask 

After we switched the two drivers that have .need_valid_mask
set to use the callback for setting up the .valid_mask,
we can just use the presence of the .init_valid_mask()
callback (or the OF reserved ranges, nota bene) to determine
whether to allocate the mask or not and we can drop the
.need_valid_mask field altogether.

Cc: Benjamin Gaignard <benjamin.gaignard@st.com>
Cc: Amelie Delaunay <amelie.delaunay@st.com>
Cc: Stephen Boyd <swboyd@chromium.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190819093058.10863-1-linus.walleij@linaro.org
This commit is contained in:
Linus Walleij 2019-08-19 11:30:58 +02:00
parent da9b142ab2
commit eb1e8bd6e3
4 changed files with 3 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpio/gpiolib.c
View File

@ -363,9 +363,7 @@ static unsigned long *gpiochip_allocate_mask(struct gpio_chip *chip)
static int gpiochip_alloc_valid_mask(struct gpio_chip *gc)
{
if (of_gpio_need_valid_mask(gc))
gc->need_valid_mask = true;
if (!gc->need_valid_mask)
if (!(of_gpio_need_valid_mask(gc) || gc->init_valid_mask))
return 0;
gc->valid_mask = gpiochip_allocate_mask(gc);

1
drivers/pinctrl/pinctrl-stmfx.c
View File

@ -662,7 +662,6 @@ static int stmfx_pinctrl_probe(struct platform_device *pdev)
pctl->gpio_chip.ngpio = pctl->pctl_desc.npins;
pctl->gpio_chip.can_sleep = true;
pctl->gpio_chip.of_node = np;
pctl->gpio_chip.need_valid_mask = true;
pctl->gpio_chip.init_valid_mask = stmfx_pinctrl_gpio_init_valid_mask;
ret = devm_gpiochip_add_data(pctl->dev, &pctl->gpio_chip, pctl);

4
drivers/pinctrl/qcom/pinctrl-msm.c
View File

@ -654,7 +654,6 @@ static const struct gpio_chip msm_gpio_template = {
.request = gpiochip_generic_request,
.free = gpiochip_generic_free,
.dbg_show = msm_gpio_dbg_show,
.init_valid_mask = msm_gpio_init_valid_mask,
};
/* For dual-edge interrupts in software, since some hardware has no
@ -1016,7 +1015,8 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
chip->parent = pctrl->dev;
chip->owner = THIS_MODULE;
chip->of_node = pctrl->dev->of_node;
chip->need_valid_mask = msm_gpio_needs_valid_mask(pctrl);
if (msm_gpio_needs_valid_mask(pctrl))
chip->init_valid_mask = msm_gpio_init_valid_mask;
pctrl->irq_chip.name = "msmgpio";
pctrl->irq_chip.irq_enable = msm_gpio_irq_enable;

9
include/linux/gpio/driver.h
View File

@ -403,15 +403,6 @@ struct gpio_chip {
struct gpio_irq_chip irq;
#endif /* CONFIG_GPIOLIB_IRQCHIP */
/**
* @need_valid_mask:
*
* If set core allocates @valid_mask with all its values initialized
* with init_valid_mask() or set to one if init_valid_mask() is not
* defined
*/
bool need_valid_mask;
/**
* @valid_mask:
*