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authorLinus Walleij <linus.walleij@linaro.org>2022-05-22 22:54:23 +0200
committerLinus Walleij <linus.walleij@linaro.org>2022-05-22 22:54:23 +0200
commit374e72d721d1b0c545d98d8767a346b9007278ef (patch)
treeab7a0c20710d1319683269405cfa54f32e3dca30 /drivers/pinctrl
parent80a504669c93b3c25e8f705d876bf9fd92ddab47 (diff)
parent7b923e67a4a76b8e0d7f5eb7688e4546fd9954bc (diff)
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Merge tag 'intel-pinctrl-v5.19-2' of gitolite.kernel.org:pub/scm/linux/kernel/git/pinctrl/intel into devel
intel-pinctrl for v5.19-2 * Fix immutable IRQ chip examples in the GPIO documentation * Make use of immutable IRQ chip in Intel pin control drivers * Add module alias for Intel Apollo Lake The following is an automated git shortlog grouped by driver: baytrail: - make irq_chip immutable broxton: - Add module alias for Intel Apollo Lake cherryview: - Use GPIO chip pointer in chv_gpio_irq_mask_unmask() - make irq_chip immutable Documentation: - gpio: Advertise irqd_to_hwirq() helper in the examples - gpio: Fix IRQ mask and unmask examples intel: - Fix kernel doc format, i.e. add return sections - Drop unused irqchip member in struct intel_pinctrl - make irq_chip immutable lynxpoint: - make irq_chip immutable
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/intel/pinctrl-baytrail.c42
-rw-r--r--drivers/pinctrl/intel/pinctrl-broxton.c1
-rw-r--r--drivers/pinctrl/intel/pinctrl-cherryview.c66
-rw-r--r--drivers/pinctrl/intel/pinctrl-intel.c45
-rw-r--r--drivers/pinctrl/intel/pinctrl-intel.h2
-rw-r--r--drivers/pinctrl/intel/pinctrl-lynxpoint.c26
6 files changed, 110 insertions, 72 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index f89c9fcd4e1b..31f8f271628c 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -1350,15 +1350,15 @@ static void byt_irq_ack(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *vg = gpiochip_get_data(gc);
- unsigned int offset = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
void __iomem *reg;
- reg = byt_gpio_reg(vg, offset, BYT_INT_STAT_REG);
+ reg = byt_gpio_reg(vg, hwirq, BYT_INT_STAT_REG);
if (!reg)
return;
raw_spin_lock(&byt_lock);
- writel(BIT(offset % 32), reg);
+ writel(BIT(hwirq % 32), reg);
raw_spin_unlock(&byt_lock);
}
@@ -1366,20 +1366,24 @@ static void byt_irq_mask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *vg = gpiochip_get_data(gc);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
- byt_gpio_clear_triggering(vg, irqd_to_hwirq(d));
+ byt_gpio_clear_triggering(vg, hwirq);
+ gpiochip_disable_irq(gc, hwirq);
}
static void byt_irq_unmask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *vg = gpiochip_get_data(gc);
- unsigned int offset = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
unsigned long flags;
void __iomem *reg;
u32 value;
- reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
+ gpiochip_enable_irq(gc, hwirq);
+
+ reg = byt_gpio_reg(vg, hwirq, BYT_CONF0_REG);
if (!reg)
return;
@@ -1412,12 +1416,13 @@ static void byt_irq_unmask(struct irq_data *d)
static int byt_irq_type(struct irq_data *d, unsigned int type)
{
struct intel_pinctrl *vg = gpiochip_get_data(irq_data_get_irq_chip_data(d));
- u32 offset = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
u32 value;
unsigned long flags;
- void __iomem *reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
+ void __iomem *reg;
- if (!reg || offset >= vg->chip.ngpio)
+ reg = byt_gpio_reg(vg, hwirq, BYT_CONF0_REG);
+ if (!reg)
return -EINVAL;
raw_spin_lock_irqsave(&byt_lock, flags);
@@ -1447,6 +1452,16 @@ static int byt_irq_type(struct irq_data *d, unsigned int type)
return 0;
}
+static const struct irq_chip byt_gpio_irq_chip = {
+ .name = "BYT-GPIO",
+ .irq_ack = byt_irq_ack,
+ .irq_mask = byt_irq_mask,
+ .irq_unmask = byt_irq_unmask,
+ .irq_set_type = byt_irq_type,
+ .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED | IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
static void byt_gpio_irq_handler(struct irq_desc *desc)
{
struct irq_data *data = irq_desc_get_irq_data(desc);
@@ -1633,15 +1648,8 @@ static int byt_gpio_probe(struct intel_pinctrl *vg)
if (irq > 0) {
struct gpio_irq_chip *girq;
- vg->irqchip.name = "BYT-GPIO",
- vg->irqchip.irq_ack = byt_irq_ack,
- vg->irqchip.irq_mask = byt_irq_mask,
- vg->irqchip.irq_unmask = byt_irq_unmask,
- vg->irqchip.irq_set_type = byt_irq_type,
- vg->irqchip.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED,
-
girq = &gc->irq;
- girq->chip = &vg->irqchip;
+ gpio_irq_chip_set_chip(girq, &byt_gpio_irq_chip);
girq->init_hw = byt_gpio_irq_init_hw;
girq->init_valid_mask = byt_init_irq_valid_mask;
girq->parent_handler = byt_gpio_irq_handler;
diff --git a/drivers/pinctrl/intel/pinctrl-broxton.c b/drivers/pinctrl/intel/pinctrl-broxton.c
index 2be7e414f803..fb15cd10a32f 100644
--- a/drivers/pinctrl/intel/pinctrl-broxton.c
+++ b/drivers/pinctrl/intel/pinctrl-broxton.c
@@ -1035,4 +1035,5 @@ module_exit(bxt_pinctrl_exit);
MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
MODULE_DESCRIPTION("Intel Broxton SoC pinctrl/GPIO driver");
MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:apollolake-pinctrl");
MODULE_ALIAS("platform:broxton-pinctrl");
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index 1d5818269076..26b2a425d201 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -1242,12 +1242,12 @@ static void chv_gpio_irq_ack(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
- int pin = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
u32 intr_line;
raw_spin_lock(&chv_lock);
- intr_line = chv_readl(pctrl, pin, CHV_PADCTRL0);
+ intr_line = chv_readl(pctrl, hwirq, CHV_PADCTRL0);
intr_line &= CHV_PADCTRL0_INTSEL_MASK;
intr_line >>= CHV_PADCTRL0_INTSEL_SHIFT;
chv_pctrl_writel(pctrl, CHV_INTSTAT, BIT(intr_line));
@@ -1255,17 +1255,15 @@ static void chv_gpio_irq_ack(struct irq_data *d)
raw_spin_unlock(&chv_lock);
}
-static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
+static void chv_gpio_irq_mask_unmask(struct gpio_chip *gc, irq_hw_number_t hwirq, bool mask)
{
- struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
- int pin = irqd_to_hwirq(d);
u32 value, intr_line;
unsigned long flags;
raw_spin_lock_irqsave(&chv_lock, flags);
- intr_line = chv_readl(pctrl, pin, CHV_PADCTRL0);
+ intr_line = chv_readl(pctrl, hwirq, CHV_PADCTRL0);
intr_line &= CHV_PADCTRL0_INTSEL_MASK;
intr_line >>= CHV_PADCTRL0_INTSEL_SHIFT;
@@ -1281,12 +1279,20 @@ static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
static void chv_gpio_irq_mask(struct irq_data *d)
{
- chv_gpio_irq_mask_unmask(d, true);
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
+
+ chv_gpio_irq_mask_unmask(gc, hwirq, true);
+ gpiochip_disable_irq(gc, hwirq);
}
static void chv_gpio_irq_unmask(struct irq_data *d)
{
- chv_gpio_irq_mask_unmask(d, false);
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
+
+ gpiochip_enable_irq(gc, hwirq);
+ chv_gpio_irq_mask_unmask(gc, hwirq, false);
}
static unsigned chv_gpio_irq_startup(struct irq_data *d)
@@ -1306,17 +1312,17 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d)
struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
struct device *dev = pctrl->dev;
struct intel_community_context *cctx = &pctrl->context.communities[0];
- unsigned int pin = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
irq_flow_handler_t handler;
unsigned long flags;
u32 intsel, value;
raw_spin_lock_irqsave(&chv_lock, flags);
- intsel = chv_readl(pctrl, pin, CHV_PADCTRL0);
+ intsel = chv_readl(pctrl, hwirq, CHV_PADCTRL0);
intsel &= CHV_PADCTRL0_INTSEL_MASK;
intsel >>= CHV_PADCTRL0_INTSEL_SHIFT;
- value = chv_readl(pctrl, pin, CHV_PADCTRL1);
+ value = chv_readl(pctrl, hwirq, CHV_PADCTRL1);
if (value & CHV_PADCTRL1_INTWAKECFG_LEVEL)
handler = handle_level_irq;
else
@@ -1324,9 +1330,9 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d)
if (cctx->intr_lines[intsel] == CHV_INVALID_HWIRQ) {
irq_set_handler_locked(d, handler);
- dev_dbg(dev, "using interrupt line %u for IRQ_TYPE_NONE on pin %u\n",
- intsel, pin);
- cctx->intr_lines[intsel] = pin;
+ dev_dbg(dev, "using interrupt line %u for IRQ_TYPE_NONE on pin %lu\n",
+ intsel, hwirq);
+ cctx->intr_lines[intsel] = hwirq;
}
raw_spin_unlock_irqrestore(&chv_lock, flags);
}
@@ -1392,14 +1398,14 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned int type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
- unsigned int pin = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
unsigned long flags;
u32 value;
int ret;
raw_spin_lock_irqsave(&chv_lock, flags);
- ret = chv_gpio_set_intr_line(pctrl, pin);
+ ret = chv_gpio_set_intr_line(pctrl, hwirq);
if (ret)
goto out_unlock;
@@ -1416,8 +1422,8 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned int type)
* 2. If the pin cfg is not locked in BIOS:
* Driver programs the IntWakeCfg bits and save the mapping.
*/
- if (!chv_pad_locked(pctrl, pin)) {
- value = chv_readl(pctrl, pin, CHV_PADCTRL1);
+ if (!chv_pad_locked(pctrl, hwirq)) {
+ value = chv_readl(pctrl, hwirq, CHV_PADCTRL1);
value &= ~CHV_PADCTRL1_INTWAKECFG_MASK;
value &= ~CHV_PADCTRL1_INVRXTX_MASK;
@@ -1434,7 +1440,7 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned int type)
value |= CHV_PADCTRL1_INVRXTX_RXDATA;
}
- chv_writel(pctrl, pin, CHV_PADCTRL1, value);
+ chv_writel(pctrl, hwirq, CHV_PADCTRL1, value);
}
if (type & IRQ_TYPE_EDGE_BOTH)
@@ -1448,6 +1454,17 @@ out_unlock:
return ret;
}
+static const struct irq_chip chv_gpio_irq_chip = {
+ .name = "chv-gpio",
+ .irq_startup = chv_gpio_irq_startup,
+ .irq_ack = chv_gpio_irq_ack,
+ .irq_mask = chv_gpio_irq_mask,
+ .irq_unmask = chv_gpio_irq_unmask,
+ .irq_set_type = chv_gpio_irq_type,
+ .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
static void chv_gpio_irq_handler(struct irq_desc *desc)
{
struct gpio_chip *gc = irq_desc_get_handler_data(desc);
@@ -1611,15 +1628,8 @@ static int chv_gpio_probe(struct intel_pinctrl *pctrl, int irq)
chip->base = -1;
pctrl->irq = irq;
- pctrl->irqchip.name = "chv-gpio";
- pctrl->irqchip.irq_startup = chv_gpio_irq_startup;
- pctrl->irqchip.irq_ack = chv_gpio_irq_ack;
- pctrl->irqchip.irq_mask = chv_gpio_irq_mask;
- pctrl->irqchip.irq_unmask = chv_gpio_irq_unmask;
- pctrl->irqchip.irq_set_type = chv_gpio_irq_type;
- pctrl->irqchip.flags = IRQCHIP_SKIP_SET_WAKE;
-
- chip->irq.chip = &pctrl->irqchip;
+
+ gpio_irq_chip_set_chip(&chip->irq, &chv_gpio_irq_chip);
chip->irq.init_hw = chv_gpio_irq_init_hw;
chip->irq.parent_handler = chv_gpio_irq_handler;
chip->irq.num_parents = 1;
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 826d494f3cc6..ffc045f7bf00 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -858,6 +858,9 @@ static const struct pinctrl_desc intel_pinctrl_desc = {
* When coming through gpiolib irqchip, the GPIO offset is not
* automatically translated to pinctrl pin number. This function can be
* used to find out the corresponding pinctrl pin.
+ *
+ * Return: a pin number and pointers to the community and pad group, which
+ * the pin belongs to, or negative error code if translation can't be done.
*/
static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned int offset,
const struct intel_community **community,
@@ -899,6 +902,8 @@ static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned int offset,
* @pin: pin number
*
* Translate the pin number of pinctrl to GPIO offset
+ *
+ * Return: a GPIO offset, or negative error code if translation can't be done.
*/
static __maybe_unused int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin)
{
@@ -1039,15 +1044,14 @@ static void intel_gpio_irq_ack(struct irq_data *d)
}
}
-static void intel_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
+static void intel_gpio_irq_mask_unmask(struct gpio_chip *gc, irq_hw_number_t hwirq, bool mask)
{
- struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
const struct intel_community *community;
const struct intel_padgroup *padgrp;
int pin;
- pin = intel_gpio_to_pin(pctrl, irqd_to_hwirq(d), &community, &padgrp);
+ pin = intel_gpio_to_pin(pctrl, hwirq, &community, &padgrp);
if (pin >= 0) {
unsigned int gpp, gpp_offset;
unsigned long flags;
@@ -1077,12 +1081,20 @@ static void intel_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
static void intel_gpio_irq_mask(struct irq_data *d)
{
- intel_gpio_irq_mask_unmask(d, true);
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
+
+ intel_gpio_irq_mask_unmask(gc, hwirq, true);
+ gpiochip_disable_irq(gc, hwirq);
}
static void intel_gpio_irq_unmask(struct irq_data *d)
{
- intel_gpio_irq_mask_unmask(d, false);
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
+
+ gpiochip_enable_irq(gc, hwirq);
+ intel_gpio_irq_mask_unmask(gc, hwirq, false);
}
static int intel_gpio_irq_type(struct irq_data *d, unsigned int type)
@@ -1157,6 +1169,17 @@ static int intel_gpio_irq_wake(struct irq_data *d, unsigned int on)
return 0;
}
+static const struct irq_chip intel_gpio_irq_chip = {
+ .name = "intel-gpio",
+ .irq_ack = intel_gpio_irq_ack,
+ .irq_mask = intel_gpio_irq_mask,
+ .irq_unmask = intel_gpio_irq_unmask,
+ .irq_set_type = intel_gpio_irq_type,
+ .irq_set_wake = intel_gpio_irq_wake,
+ .flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
static int intel_gpio_community_irq_handler(struct intel_pinctrl *pctrl,
const struct intel_community *community)
{
@@ -1319,15 +1342,6 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
pctrl->chip.add_pin_ranges = intel_gpio_add_pin_ranges;
pctrl->irq = irq;
- /* Setup IRQ chip */
- pctrl->irqchip.name = dev_name(pctrl->dev);
- pctrl->irqchip.irq_ack = intel_gpio_irq_ack;
- pctrl->irqchip.irq_mask = intel_gpio_irq_mask;
- pctrl->irqchip.irq_unmask = intel_gpio_irq_unmask;
- pctrl->irqchip.irq_set_type = intel_gpio_irq_type;
- pctrl->irqchip.irq_set_wake = intel_gpio_irq_wake;
- pctrl->irqchip.flags = IRQCHIP_MASK_ON_SUSPEND;
-
/*
* On some platforms several GPIO controllers share the same interrupt
* line.
@@ -1340,8 +1354,9 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
return ret;
}
+ /* Setup IRQ chip */
girq = &pctrl->chip.irq;
- girq->chip = &pctrl->irqchip;
+ gpio_irq_chip_set_chip(girq, &intel_gpio_irq_chip);
/* This will let us handle the IRQ in the driver */
girq->parent_handler = NULL;
girq->num_parents = 0;
diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h
index c4fef03b663f..710341bb67cc 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.h
+++ b/drivers/pinctrl/intel/pinctrl-intel.h
@@ -223,7 +223,6 @@ struct intel_pinctrl_context {
* @pctldesc: Pin controller description
* @pctldev: Pointer to the pin controller device
* @chip: GPIO chip in this pin controller
- * @irqchip: IRQ chip in this pin controller
* @soc: SoC/PCH specific pin configuration data
* @communities: All communities in this pin controller
* @ncommunities: Number of communities in this pin controller
@@ -236,7 +235,6 @@ struct intel_pinctrl {
struct pinctrl_desc pctldesc;
struct pinctrl_dev *pctldev;
struct gpio_chip chip;
- struct irq_chip irqchip;
const struct intel_pinctrl_soc_data *soc;
struct intel_community *communities;
size_t ncommunities;
diff --git a/drivers/pinctrl/intel/pinctrl-lynxpoint.c b/drivers/pinctrl/intel/pinctrl-lynxpoint.c
index 561fa322b0b4..4fb39eb30902 100644
--- a/drivers/pinctrl/intel/pinctrl-lynxpoint.c
+++ b/drivers/pinctrl/intel/pinctrl-lynxpoint.c
@@ -663,7 +663,7 @@ static void lp_irq_ack(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *lg = gpiochip_get_data(gc);
- u32 hwirq = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
void __iomem *reg = lp_gpio_reg(&lg->chip, hwirq, LP_INT_STAT);
unsigned long flags;
@@ -684,10 +684,12 @@ static void lp_irq_enable(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *lg = gpiochip_get_data(gc);
- u32 hwirq = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
void __iomem *reg = lp_gpio_reg(&lg->chip, hwirq, LP_INT_ENABLE);
unsigned long flags;
+ gpiochip_enable_irq(gc, hwirq);
+
raw_spin_lock_irqsave(&lg->lock, flags);
iowrite32(ioread32(reg) | BIT(hwirq % 32), reg);
raw_spin_unlock_irqrestore(&lg->lock, flags);
@@ -697,30 +699,33 @@ static void lp_irq_disable(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *lg = gpiochip_get_data(gc);
- u32 hwirq = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
void __iomem *reg = lp_gpio_reg(&lg->chip, hwirq, LP_INT_ENABLE);
unsigned long flags;
raw_spin_lock_irqsave(&lg->lock, flags);
iowrite32(ioread32(reg) & ~BIT(hwirq % 32), reg);
raw_spin_unlock_irqrestore(&lg->lock, flags);
+
+ gpiochip_disable_irq(gc, hwirq);
}
static int lp_irq_set_type(struct irq_data *d, unsigned int type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *lg = gpiochip_get_data(gc);
- u32 hwirq = irqd_to_hwirq(d);
- void __iomem *reg = lp_gpio_reg(&lg->chip, hwirq, LP_CONFIG1);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
unsigned long flags;
+ void __iomem *reg;
u32 value;
- if (hwirq >= lg->chip.ngpio)
+ reg = lp_gpio_reg(&lg->chip, hwirq, LP_CONFIG1);
+ if (!reg)
return -EINVAL;
/* Fail if BIOS reserved pin for ACPI use */
if (lp_gpio_acpi_use(lg, hwirq)) {
- dev_err(lg->dev, "pin %u can't be used as IRQ\n", hwirq);
+ dev_err(lg->dev, "pin %lu can't be used as IRQ\n", hwirq);
return -EBUSY;
}
@@ -755,7 +760,7 @@ static int lp_irq_set_type(struct irq_data *d, unsigned int type)
return 0;
}
-static struct irq_chip lp_irqchip = {
+static const struct irq_chip lp_irqchip = {
.name = "LP-GPIO",
.irq_ack = lp_irq_ack,
.irq_mask = lp_irq_mask,
@@ -763,7 +768,8 @@ static struct irq_chip lp_irqchip = {
.irq_enable = lp_irq_enable,
.irq_disable = lp_irq_disable,
.irq_set_type = lp_irq_set_type,
- .flags = IRQCHIP_SKIP_SET_WAKE,
+ .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
static int lp_gpio_irq_init_hw(struct gpio_chip *chip)
@@ -884,7 +890,7 @@ static int lp_gpio_probe(struct platform_device *pdev)
struct gpio_irq_chip *girq;
girq = &gc->irq;
- girq->chip = &lp_irqchip;
+ gpio_irq_chip_set_chip(girq, &lp_irqchip);
girq->init_hw = lp_gpio_irq_init_hw;
girq->parent_handler = lp_gpio_irq_handler;
girq->num_parents = 1;