[PATCH v4 1/2] pinctrl: samsung: Add the support the multiple IORESOURCE_MEM for one pin-bank
From: Chanwoo Choi
Date: Wed Nov 09 2016 - 03:40:33 EST
This patch supports the multiple IORESOURCE_MEM resources for one pin-bank.
In the pre-existing Exynos series, the registers of the gpio bank are included
in the one memory map. But, some gpio bank need to support the one more memory
map (IORESOURCE_MEM) because the registers of gpio bank are separated into
the different memory map.
For example,
The both ALIVE and IMEM domain have the different memory base address.
The GFP[1-5] of exynos5433 are composed as following:
- ALIVE domain : WEINT_* registers
- IMEM domain : CON/DAT/PUD/DRV/CONPDN/PUDPDN register
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Tomasz Figa <tomasz.figa@xxxxxxxxx>
Cc: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Cc: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Cc: Kukjin Kim <kgene@xxxxxxxxxx>
Cc: linux-gpio@xxxxxxxxxxxxxxx
Suggested-by: Tomasz Figa <tomasz.figa@xxxxxxxxx>
Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
drivers/pinctrl/samsung/pinctrl-exynos.c | 39 +++++++++++++-----------------
drivers/pinctrl/samsung/pinctrl-exynos.h | 11 +++++++++
drivers/pinctrl/samsung/pinctrl-s3c24xx.c | 37 +++++++++++++---------------
drivers/pinctrl/samsung/pinctrl-s3c64xx.c | 40 +++++++++++++++++--------------
drivers/pinctrl/samsung/pinctrl-samsung.c | 40 ++++++++++++++++++++-----------
drivers/pinctrl/samsung/pinctrl-samsung.h | 10 ++++++--
6 files changed, 99 insertions(+), 78 deletions(-)
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index d32fa2b5ff82..d657b52dfdb5 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -61,16 +61,15 @@ static void exynos_irq_mask(struct irq_data *irqd)
struct irq_chip *chip = irq_data_get_irq_chip(irqd);
struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip);
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned long reg_mask = our_chip->eint_mask + bank->eint_offset;
unsigned long mask;
unsigned long flags;
spin_lock_irqsave(&bank->slock, flags);
- mask = readl(d->virt_base + reg_mask);
+ mask = readl(bank->eint_base + reg_mask);
mask |= 1 << irqd->hwirq;
- writel(mask, d->virt_base + reg_mask);
+ writel(mask, bank->eint_base + reg_mask);
spin_unlock_irqrestore(&bank->slock, flags);
}
@@ -80,10 +79,9 @@ static void exynos_irq_ack(struct irq_data *irqd)
struct irq_chip *chip = irq_data_get_irq_chip(irqd);
struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip);
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned long reg_pend = our_chip->eint_pend + bank->eint_offset;
- writel(1 << irqd->hwirq, d->virt_base + reg_pend);
+ writel(1 << irqd->hwirq, bank->eint_base + reg_pend);
}
static void exynos_irq_unmask(struct irq_data *irqd)
@@ -91,7 +89,6 @@ static void exynos_irq_unmask(struct irq_data *irqd)
struct irq_chip *chip = irq_data_get_irq_chip(irqd);
struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip);
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned long reg_mask = our_chip->eint_mask + bank->eint_offset;
unsigned long mask;
unsigned long flags;
@@ -109,9 +106,9 @@ static void exynos_irq_unmask(struct irq_data *irqd)
spin_lock_irqsave(&bank->slock, flags);
- mask = readl(d->virt_base + reg_mask);
+ mask = readl(bank->eint_base + reg_mask);
mask &= ~(1 << irqd->hwirq);
- writel(mask, d->virt_base + reg_mask);
+ writel(mask, bank->eint_base + reg_mask);
spin_unlock_irqrestore(&bank->slock, flags);
}
@@ -121,7 +118,6 @@ static int exynos_irq_set_type(struct irq_data *irqd, unsigned int type)
struct irq_chip *chip = irq_data_get_irq_chip(irqd);
struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip);
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned int shift = EXYNOS_EINT_CON_LEN * irqd->hwirq;
unsigned int con, trig_type;
unsigned long reg_con = our_chip->eint_con + bank->eint_offset;
@@ -152,10 +148,10 @@ static int exynos_irq_set_type(struct irq_data *irqd, unsigned int type)
else
irq_set_handler_locked(irqd, handle_level_irq);
- con = readl(d->virt_base + reg_con);
+ con = readl(bank->eint_base + reg_con);
con &= ~(EXYNOS_EINT_CON_MASK << shift);
con |= trig_type << shift;
- writel(con, d->virt_base + reg_con);
+ writel(con, bank->eint_base + reg_con);
return 0;
}
@@ -166,7 +162,6 @@ static int exynos_irq_request_resources(struct irq_data *irqd)
struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip);
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
const struct samsung_pin_bank_type *bank_type = bank->type;
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned int shift = EXYNOS_EINT_CON_LEN * irqd->hwirq;
unsigned long reg_con = our_chip->eint_con + bank->eint_offset;
unsigned long flags;
@@ -188,10 +183,10 @@ static int exynos_irq_request_resources(struct irq_data *irqd)
spin_lock_irqsave(&bank->slock, flags);
- con = readl(d->virt_base + reg_con);
+ con = readl(bank->eint_base + reg_con);
con &= ~(mask << shift);
con |= EXYNOS_EINT_FUNC << shift;
- writel(con, d->virt_base + reg_con);
+ writel(con, bank->eint_base + reg_con);
spin_unlock_irqrestore(&bank->slock, flags);
@@ -206,7 +201,6 @@ static void exynos_irq_release_resources(struct irq_data *irqd)
struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip);
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
const struct samsung_pin_bank_type *bank_type = bank->type;
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned int shift = EXYNOS_EINT_CON_LEN * irqd->hwirq;
unsigned long reg_con = our_chip->eint_con + bank->eint_offset;
unsigned long flags;
@@ -221,10 +215,10 @@ static void exynos_irq_release_resources(struct irq_data *irqd)
spin_lock_irqsave(&bank->slock, flags);
- con = readl(d->virt_base + reg_con);
+ con = readl(bank->eint_base + reg_con);
con &= ~(mask << shift);
con |= FUNC_INPUT << shift;
- writel(con, d->virt_base + reg_con);
+ writel(con, bank->eint_base + reg_con);
spin_unlock_irqrestore(&bank->slock, flags);
@@ -274,7 +268,7 @@ static irqreturn_t exynos_eint_gpio_irq(int irq, void *data)
struct samsung_pin_bank *bank = d->pin_banks;
unsigned int svc, group, pin, virq;
- svc = readl(d->virt_base + EXYNOS_SVC_OFFSET);
+ svc = readl(bank->eint_base + EXYNOS_SVC_OFFSET);
group = EXYNOS_SVC_GROUP(svc);
pin = svc & EXYNOS_SVC_NUM_MASK;
@@ -452,7 +446,6 @@ static void exynos_irq_demux_eint16_31(struct irq_desc *desc)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
struct exynos_muxed_weint_data *eintd = irq_desc_get_handler_data(desc);
- struct samsung_pinctrl_drv_data *d = eintd->banks[0]->drvdata;
unsigned long pend;
unsigned long mask;
int i;
@@ -461,9 +454,9 @@ static void exynos_irq_demux_eint16_31(struct irq_desc *desc)
for (i = 0; i < eintd->nr_banks; ++i) {
struct samsung_pin_bank *b = eintd->banks[i];
- pend = readl(d->virt_base + b->irq_chip->eint_pend
+ pend = readl(b->eint_base + b->irq_chip->eint_pend
+ b->eint_offset);
- mask = readl(d->virt_base + b->irq_chip->eint_mask
+ mask = readl(b->eint_base + b->irq_chip->eint_mask
+ b->eint_offset);
exynos_irq_demux_eint(pend & ~mask, b->irq_domain);
}
@@ -581,7 +574,7 @@ static void exynos_pinctrl_suspend_bank(
struct samsung_pin_bank *bank)
{
struct exynos_eint_gpio_save *save = bank->soc_priv;
- void __iomem *regs = drvdata->virt_base;
+ void __iomem *regs = bank->eint_base;
save->eint_con = readl(regs + EXYNOS_GPIO_ECON_OFFSET
+ bank->eint_offset);
@@ -610,7 +603,7 @@ static void exynos_pinctrl_resume_bank(
struct samsung_pin_bank *bank)
{
struct exynos_eint_gpio_save *save = bank->soc_priv;
- void __iomem *regs = drvdata->virt_base;
+ void __iomem *regs = bank->eint_base;
pr_debug("%s: con %#010x => %#010x\n", bank->name,
readl(regs + EXYNOS_GPIO_ECON_OFFSET
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.h b/drivers/pinctrl/samsung/pinctrl-exynos.h
index 0f0f7cedb2dc..5821525a2c84 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.h
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.h
@@ -79,6 +79,17 @@
.name = id \
}
+#define EXYNOS_PIN_BANK_EINTW_EXT(pins, reg, id, offs, pctl_idx) \
+ { \
+ .type = &bank_type_alive, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_WKUP, \
+ .eint_offset = offs, \
+ .name = id, \
+ .pctl_res_idx = pctl_idx, \
+ } \
+
/**
* struct exynos_weint_data: irq specific data for all the wakeup interrupts
* generated by the external wakeup interrupt controller.
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c24xx.c b/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
index 3d92f827da7a..b82a003546ae 100644
--- a/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
+++ b/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
@@ -151,7 +151,7 @@ static void s3c24xx_eint_set_function(struct samsung_pinctrl_drv_data *d,
u32 val;
/* Make sure that pin is configured as interrupt */
- reg = d->virt_base + bank->pctl_offset;
+ reg = bank->pctl_base + bank->pctl_offset;
shift = pin * bank_type->fld_width[PINCFG_TYPE_FUNC];
mask = (1 << bank_type->fld_width[PINCFG_TYPE_FUNC]) - 1;
@@ -184,7 +184,7 @@ static int s3c24xx_eint_type(struct irq_data *data, unsigned int type)
s3c24xx_eint_set_handler(data, type);
/* Set up interrupt trigger */
- reg = d->virt_base + EINT_REG(index);
+ reg = bank->eint_base + EINT_REG(index);
shift = EINT_OFFS(index);
val = readl(reg);
@@ -259,32 +259,29 @@ static void s3c2410_demux_eint0_3(struct irq_desc *desc)
static void s3c2412_eint0_3_ack(struct irq_data *data)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned long bitval = 1UL << data->hwirq;
- writel(bitval, d->virt_base + EINTPEND_REG);
+ writel(bitval, bank->eint_base + EINTPEND_REG);
}
static void s3c2412_eint0_3_mask(struct irq_data *data)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned long mask;
- mask = readl(d->virt_base + EINTMASK_REG);
+ mask = readl(bank->eint_base + EINTMASK_REG);
mask |= (1UL << data->hwirq);
- writel(mask, d->virt_base + EINTMASK_REG);
+ writel(mask, bank->eint_base + EINTMASK_REG);
}
static void s3c2412_eint0_3_unmask(struct irq_data *data)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned long mask;
- mask = readl(d->virt_base + EINTMASK_REG);
+ mask = readl(bank->eint_base + EINTMASK_REG);
mask &= ~(1UL << data->hwirq);
- writel(mask, d->virt_base + EINTMASK_REG);
+ writel(mask, bank->eint_base + EINTMASK_REG);
}
static struct irq_chip s3c2412_eint0_3_chip = {
@@ -319,34 +316,31 @@ static void s3c2412_demux_eint0_3(struct irq_desc *desc)
static void s3c24xx_eint_ack(struct irq_data *data)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned char index = bank->eint_offset + data->hwirq;
- writel(1UL << index, d->virt_base + EINTPEND_REG);
+ writel(1UL << index, bank->eint_base + EINTPEND_REG);
}
static void s3c24xx_eint_mask(struct irq_data *data)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned char index = bank->eint_offset + data->hwirq;
unsigned long mask;
- mask = readl(d->virt_base + EINTMASK_REG);
+ mask = readl(bank->eint_base + EINTMASK_REG);
mask |= (1UL << index);
- writel(mask, d->virt_base + EINTMASK_REG);
+ writel(mask, bank->eint_base + EINTMASK_REG);
}
static void s3c24xx_eint_unmask(struct irq_data *data)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned char index = bank->eint_offset + data->hwirq;
unsigned long mask;
- mask = readl(d->virt_base + EINTMASK_REG);
+ mask = readl(bank->eint_base + EINTMASK_REG);
mask &= ~(1UL << index);
- writel(mask, d->virt_base + EINTMASK_REG);
+ writel(mask, bank->eint_base + EINTMASK_REG);
}
static struct irq_chip s3c24xx_eint_chip = {
@@ -362,13 +356,14 @@ static inline void s3c24xx_demux_eint(struct irq_desc *desc,
{
struct s3c24xx_eint_data *data = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc);
- struct samsung_pinctrl_drv_data *d = data->drvdata;
+ struct irq_data *irqd = irq_desc_get_irq_data(desc);
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
unsigned int pend, mask;
chained_irq_enter(chip, desc);
- pend = readl(d->virt_base + EINTPEND_REG);
- mask = readl(d->virt_base + EINTMASK_REG);
+ pend = readl(bank->eint_base + EINTPEND_REG);
+ mask = readl(bank->eint_base + EINTMASK_REG);
pend &= ~mask;
pend &= range;
diff --git a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
index 43407ab248f5..4c632812ccff 100644
--- a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
+++ b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
@@ -280,7 +280,7 @@ static void s3c64xx_irq_set_function(struct samsung_pinctrl_drv_data *d,
u32 val;
/* Make sure that pin is configured as interrupt */
- reg = d->virt_base + bank->pctl_offset;
+ reg = bank->pctl_base + bank->pctl_offset;
shift = pin;
if (bank_type->fld_width[PINCFG_TYPE_FUNC] * shift >= 32) {
/* 4-bit bank type with 2 con regs */
@@ -308,9 +308,8 @@ static void s3c64xx_irq_set_function(struct samsung_pinctrl_drv_data *d,
static inline void s3c64xx_gpio_irq_set_mask(struct irq_data *irqd, bool mask)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned char index = EINT_OFFS(bank->eint_offset) + irqd->hwirq;
- void __iomem *reg = d->virt_base + EINTMASK_REG(bank->eint_offset);
+ void __iomem *reg = bank->eint_base + EINTMASK_REG(bank->eint_offset);
u32 val;
val = readl(reg);
@@ -334,9 +333,8 @@ static void s3c64xx_gpio_irq_mask(struct irq_data *irqd)
static void s3c64xx_gpio_irq_ack(struct irq_data *irqd)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
unsigned char index = EINT_OFFS(bank->eint_offset) + irqd->hwirq;
- void __iomem *reg = d->virt_base + EINTPEND_REG(bank->eint_offset);
+ void __iomem *reg = bank->eint_base + EINTPEND_REG(bank->eint_offset);
writel(1 << index, reg);
}
@@ -359,7 +357,7 @@ static int s3c64xx_gpio_irq_set_type(struct irq_data *irqd, unsigned int type)
s3c64xx_irq_set_handler(irqd, type);
/* Set up interrupt trigger */
- reg = d->virt_base + EINTCON_REG(bank->eint_offset);
+ reg = bank->eint_base + EINTCON_REG(bank->eint_offset);
shift = EINT_OFFS(bank->eint_offset) + irqd->hwirq;
shift = 4 * (shift / 4); /* 4 EINTs per trigger selector */
@@ -411,7 +409,8 @@ static void s3c64xx_eint_gpio_irq(struct irq_desc *desc)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
struct s3c64xx_eint_gpio_data *data = irq_desc_get_handler_data(desc);
- struct samsung_pinctrl_drv_data *drvdata = data->drvdata;
+ struct irq_data *irqd = irq_desc_get_irq_data(desc);
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
chained_irq_enter(chip, desc);
@@ -421,7 +420,7 @@ static void s3c64xx_eint_gpio_irq(struct irq_desc *desc)
unsigned int pin;
unsigned int virq;
- svc = readl(drvdata->virt_base + SERVICE_REG);
+ svc = readl(bank->eint_base + SERVICE_REG);
group = SVC_GROUP(svc);
pin = svc & SVC_NUM_MASK;
@@ -518,15 +517,15 @@ static inline void s3c64xx_eint0_irq_set_mask(struct irq_data *irqd, bool mask)
{
struct s3c64xx_eint0_domain_data *ddata =
irq_data_get_irq_chip_data(irqd);
- struct samsung_pinctrl_drv_data *d = ddata->bank->drvdata;
+ struct samsung_pin_bank *bank = ddata->bank;
u32 val;
- val = readl(d->virt_base + EINT0MASK_REG);
+ val = readl(bank->eint_base + EINT0MASK_REG);
if (mask)
val |= 1 << ddata->eints[irqd->hwirq];
else
val &= ~(1 << ddata->eints[irqd->hwirq]);
- writel(val, d->virt_base + EINT0MASK_REG);
+ writel(val, bank->eint_base + EINT0MASK_REG);
}
static void s3c64xx_eint0_irq_unmask(struct irq_data *irqd)
@@ -543,10 +542,10 @@ static void s3c64xx_eint0_irq_ack(struct irq_data *irqd)
{
struct s3c64xx_eint0_domain_data *ddata =
irq_data_get_irq_chip_data(irqd);
- struct samsung_pinctrl_drv_data *d = ddata->bank->drvdata;
+ struct samsung_pin_bank *bank = ddata->bank;
writel(1 << ddata->eints[irqd->hwirq],
- d->virt_base + EINT0PEND_REG);
+ bank->eint_base + EINT0PEND_REG);
}
static int s3c64xx_eint0_irq_set_type(struct irq_data *irqd, unsigned int type)
@@ -554,7 +553,7 @@ static int s3c64xx_eint0_irq_set_type(struct irq_data *irqd, unsigned int type)
struct s3c64xx_eint0_domain_data *ddata =
irq_data_get_irq_chip_data(irqd);
struct samsung_pin_bank *bank = ddata->bank;
- struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ struct samsung_pinctrl_drv_data *d = ddata->bank->drvdata;
void __iomem *reg;
int trigger;
u8 shift;
@@ -569,7 +568,7 @@ static int s3c64xx_eint0_irq_set_type(struct irq_data *irqd, unsigned int type)
s3c64xx_irq_set_handler(irqd, type);
/* Set up interrupt trigger */
- reg = d->virt_base + EINT0CON0_REG;
+ reg = bank->eint_base + EINT0CON0_REG;
shift = ddata->eints[irqd->hwirq];
if (shift >= EINT_MAX_PER_REG) {
reg += 4;
@@ -601,14 +600,19 @@ static int s3c64xx_eint0_irq_set_type(struct irq_data *irqd, unsigned int type)
static inline void s3c64xx_irq_demux_eint(struct irq_desc *desc, u32 range)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
+ struct irq_data *irqd = irq_desc_get_irq_data(desc);
+ struct s3c64xx_eint0_domain_data *ddata =
+ irq_data_get_irq_chip_data(irqd);
+ struct samsung_pin_bank *bank = ddata->bank;
+
struct s3c64xx_eint0_data *data = irq_desc_get_handler_data(desc);
- struct samsung_pinctrl_drv_data *drvdata = data->drvdata;
+
unsigned int pend, mask;
chained_irq_enter(chip, desc);
- pend = readl(drvdata->virt_base + EINT0PEND_REG);
- mask = readl(drvdata->virt_base + EINT0MASK_REG);
+ pend = readl(bank->eint_base + EINT0PEND_REG);
+ mask = readl(bank->eint_base + EINT0MASK_REG);
pend = pend & range & ~mask;
pend &= range;
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c
index 620727fabe64..41e62391c33c 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.c
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.c
@@ -33,6 +33,9 @@
#include "../core.h"
#include "pinctrl-samsung.h"
+/* maximum number of the memory resources */
+#define SAMSUNG_PINCTRL_NUM_RESOURCES 2
+
/* list of all possible config options supported */
static struct pin_config {
const char *property;
@@ -345,7 +348,7 @@ static void pin_to_reg_bank(struct samsung_pinctrl_drv_data *drvdata,
((b->pin_base + b->nr_pins - 1) < pin))
b++;
- *reg = drvdata->virt_base + b->pctl_offset;
+ *reg = b->pctl_base + b->pctl_offset;
*offset = pin - b->pin_base;
if (bank)
*bank = b;
@@ -526,7 +529,7 @@ static void samsung_gpio_set_value(struct gpio_chip *gc,
void __iomem *reg;
u32 data;
- reg = bank->drvdata->virt_base + bank->pctl_offset;
+ reg = bank->pctl_base + bank->pctl_offset;
data = readl(reg + type->reg_offset[PINCFG_TYPE_DAT]);
data &= ~(1 << offset);
@@ -554,7 +557,7 @@ static int samsung_gpio_get(struct gpio_chip *gc, unsigned offset)
struct samsung_pin_bank *bank = gpiochip_get_data(gc);
const struct samsung_pin_bank_type *type = bank->type;
- reg = bank->drvdata->virt_base + bank->pctl_offset;
+ reg = bank->pctl_base + bank->pctl_offset;
data = readl(reg + type->reg_offset[PINCFG_TYPE_DAT]);
data >>= offset;
@@ -581,8 +584,8 @@ static int samsung_gpio_set_direction(struct gpio_chip *gc,
type = bank->type;
drvdata = bank->drvdata;
- reg = drvdata->virt_base + bank->pctl_offset +
- type->reg_offset[PINCFG_TYPE_FUNC];
+ reg = bank->pctl_base + bank->pctl_offset
+ + type->reg_offset[PINCFG_TYPE_FUNC];
mask = (1 << type->fld_width[PINCFG_TYPE_FUNC]) - 1;
shift = offset * type->fld_width[PINCFG_TYPE_FUNC];
@@ -979,6 +982,8 @@ static int samsung_gpiolib_unregister(struct platform_device *pdev,
const struct samsung_pin_bank_data *bdata;
const struct samsung_pin_ctrl *ctrl;
struct samsung_pin_bank *bank;
+ struct resource *res;
+ void __iomem *virt_base[SAMSUNG_PINCTRL_NUM_RESOURCES];
int i;
id = of_alias_get_id(node, "pinctrl");
@@ -997,6 +1002,17 @@ static int samsung_gpiolib_unregister(struct platform_device *pdev,
if (!d->pin_banks)
return ERR_PTR(-ENOMEM);
+ if (ctrl->nr_ext_resources + 1 > SAMSUNG_PINCTRL_NUM_RESOURCES)
+ return ERR_PTR(-EINVAL);
+
+ for (i = 0; i < ctrl->nr_ext_resources + 1; i++) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+ virt_base[i] = devm_ioremap(&pdev->dev, res->start,
+ resource_size(res));
+ if (IS_ERR(virt_base[i]))
+ return ERR_PTR(-EIO);
+ }
+
bank = d->pin_banks;
bdata = ctrl->pin_banks;
for (i = 0; i < ctrl->nr_banks; ++i, ++bdata, ++bank) {
@@ -1013,6 +1029,9 @@ static int samsung_gpiolib_unregister(struct platform_device *pdev,
bank->drvdata = d;
bank->pin_base = d->nr_pins;
d->nr_pins += bank->nr_pins;
+
+ bank->eint_base = virt_base[0];
+ bank->pctl_base = virt_base[bdata->pctl_res_idx];
}
for_each_child_of_node(node, np) {
@@ -1052,11 +1071,6 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
}
drvdata->dev = dev;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- drvdata->virt_base = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(drvdata->virt_base))
- return PTR_ERR(drvdata->virt_base);
-
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res)
drvdata->irq = res->start;
@@ -1094,12 +1108,11 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
static void samsung_pinctrl_suspend_dev(
struct samsung_pinctrl_drv_data *drvdata)
{
- void __iomem *virt_base = drvdata->virt_base;
int i;
for (i = 0; i < drvdata->nr_banks; i++) {
struct samsung_pin_bank *bank = &drvdata->pin_banks[i];
- void __iomem *reg = virt_base + bank->pctl_offset;
+ void __iomem *reg = bank->pctl_base + bank->pctl_offset;
const u8 *offs = bank->type->reg_offset;
const u8 *widths = bank->type->fld_width;
enum pincfg_type type;
@@ -1140,7 +1153,6 @@ static void samsung_pinctrl_suspend_dev(
*/
static void samsung_pinctrl_resume_dev(struct samsung_pinctrl_drv_data *drvdata)
{
- void __iomem *virt_base = drvdata->virt_base;
int i;
if (drvdata->resume)
@@ -1148,7 +1160,7 @@ static void samsung_pinctrl_resume_dev(struct samsung_pinctrl_drv_data *drvdata)
for (i = 0; i < drvdata->nr_banks; i++) {
struct samsung_pin_bank *bank = &drvdata->pin_banks[i];
- void __iomem *reg = virt_base + bank->pctl_offset;
+ void __iomem *reg = bank->pctl_base + bank->pctl_offset;
const u8 *offs = bank->type->reg_offset;
const u8 *widths = bank->type->fld_width;
enum pincfg_type type;
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.h b/drivers/pinctrl/samsung/pinctrl-samsung.h
index cd31bfaf62cb..043cb6c11180 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.h
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.h
@@ -116,6 +116,7 @@ struct samsung_pin_bank_type {
* struct samsung_pin_bank_data: represent a controller pin-bank (init data).
* @type: type of the bank (register offsets and bitfield widths)
* @pctl_offset: starting offset of the pin-bank registers.
+ * @pctl_res_idx: index of base address for pin-bank registers.
* @nr_pins: number of pins included in this bank.
* @eint_func: function to set in CON register to configure pin as EINT.
* @eint_type: type of the external interrupt supported by the bank.
@@ -126,6 +127,7 @@ struct samsung_pin_bank_type {
struct samsung_pin_bank_data {
const struct samsung_pin_bank_type *type;
u32 pctl_offset;
+ u8 pctl_res_idx;
u8 nr_pins;
u8 eint_func;
enum eint_type eint_type;
@@ -137,8 +139,10 @@ struct samsung_pin_bank_data {
/**
* struct samsung_pin_bank: represent a controller pin-bank.
* @type: type of the bank (register offsets and bitfield widths)
+ * @pctl_base: base address of the pin-bank registers
* @pctl_offset: starting offset of the pin-bank registers.
* @nr_pins: number of pins included in this bank.
+ * @eint_base: base address of the pin-bank EINT registers.
* @eint_func: function to set in CON register to configure pin as EINT.
* @eint_type: type of the external interrupt supported by the bank.
* @eint_mask: bit mask of pins which support EINT function.
@@ -157,8 +161,10 @@ struct samsung_pin_bank_data {
*/
struct samsung_pin_bank {
const struct samsung_pin_bank_type *type;
+ void __iomem *pctl_base;
u32 pctl_offset;
u8 nr_pins;
+ void __iomem *eint_base;
u8 eint_func;
enum eint_type eint_type;
u32 eint_mask;
@@ -182,6 +188,7 @@ struct samsung_pin_bank {
* struct samsung_pin_ctrl: represent a pin controller.
* @pin_banks: list of pin banks included in this controller.
* @nr_banks: number of pin banks.
+ * @nr_ext_resources: number of the extra base address for pin banks.
* @eint_gpio_init: platform specific callback to setup the external gpio
* interrupts for the controller.
* @eint_wkup_init: platform specific callback to setup the external wakeup
@@ -190,6 +197,7 @@ struct samsung_pin_bank {
struct samsung_pin_ctrl {
const struct samsung_pin_bank_data *pin_banks;
u32 nr_banks;
+ int nr_ext_resources;
int (*eint_gpio_init)(struct samsung_pinctrl_drv_data *);
int (*eint_wkup_init)(struct samsung_pinctrl_drv_data *);
@@ -200,7 +208,6 @@ struct samsung_pin_ctrl {
/**
* struct samsung_pinctrl_drv_data: wrapper for holding driver data together.
* @node: global list node
- * @virt_base: register base address of the controller.
* @dev: device instance representing the controller.
* @irq: interrpt number used by the controller to notify gpio interrupts.
* @ctrl: pin controller instance managed by the driver.
@@ -215,7 +222,6 @@ struct samsung_pin_ctrl {
*/
struct samsung_pinctrl_drv_data {
struct list_head node;
- void __iomem *virt_base;
struct device *dev;
int irq;
--
1.9.1