pinctrl: samsung: Add the support the multiple IORESOURCE_MEM for one pin-bank

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@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: linux-gpio@vger.kernel.org
Suggested-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 22 insertions, 18 deletions

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 struct irq_chip s3c64xx_eint0_irq_chip = {
 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;