[1/4] pinctrl: qcom: Introduce readl/writel accessors

Message ID 20180920013712.2361-2-bjorn.andersson@linaro.org
State New
Headers show
Series
  • [1/4] pinctrl: qcom: Introduce readl/writel accessors
Related show

Commit Message

Bjorn Andersson Sept. 20, 2018, 1:37 a.m.
In preparation for the support for dispersed tiles move all readl and
writel calls to helper functions. This will allow us to isolate the
added complexity of another indirection.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

---
 drivers/pinctrl/qcom/pinctrl-msm.c | 90 ++++++++++++++++++------------
 1 file changed, 54 insertions(+), 36 deletions(-)

-- 
2.18.0

Patch

diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index 1684b2da09d5..86fbb5fe4d0e 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -73,6 +73,24 @@  struct msm_pinctrl {
 	void __iomem *regs;
 };
 
+#define MSM_ACCESSOR(name) \
+static u32 msm_readl_##name(struct msm_pinctrl *pctrl, \
+			    const struct msm_pingroup *g) \
+{ \
+	return readl(pctrl->regs + g->name##_reg); \
+} \
+static void msm_writel_##name(u32 val, struct msm_pinctrl *pctrl, \
+			      const struct msm_pingroup *g) \
+{ \
+	writel(val, pctrl->regs + g->name##_reg); \
+}
+
+MSM_ACCESSOR(ctl)
+MSM_ACCESSOR(io)
+MSM_ACCESSOR(intr_cfg)
+MSM_ACCESSOR(intr_status)
+MSM_ACCESSOR(intr_target)
+
 static int msm_get_groups_count(struct pinctrl_dev *pctldev)
 {
 	struct msm_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
@@ -166,10 +184,10 @@  static int msm_pinmux_set_mux(struct pinctrl_dev *pctldev,
 
 	raw_spin_lock_irqsave(&pctrl->lock, flags);
 
-	val = readl(pctrl->regs + g->ctl_reg);
+	val = msm_readl_ctl(pctrl, g);
 	val &= ~mask;
 	val |= i << g->mux_bit;
-	writel(val, pctrl->regs + g->ctl_reg);
+	msm_writel_ctl(val, pctrl, g);
 
 	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
 
@@ -260,7 +278,7 @@  static int msm_config_group_get(struct pinctrl_dev *pctldev,
 	if (ret < 0)
 		return ret;
 
-	val = readl(pctrl->regs + g->ctl_reg);
+	val = msm_readl_ctl(pctrl, g);
 	arg = (val >> bit) & mask;
 
 	/* Convert register value to pinconf value */
@@ -299,7 +317,7 @@  static int msm_config_group_get(struct pinctrl_dev *pctldev,
 		if (!arg)
 			return -EINVAL;
 
-		val = readl(pctrl->regs + g->io_reg);
+		val = msm_readl_io(pctrl, g);
 		arg = !!(val & BIT(g->in_bit));
 		break;
 	case PIN_CONFIG_INPUT_ENABLE:
@@ -373,12 +391,12 @@  static int msm_config_group_set(struct pinctrl_dev *pctldev,
 		case PIN_CONFIG_OUTPUT:
 			/* set output value */
 			raw_spin_lock_irqsave(&pctrl->lock, flags);
-			val = readl(pctrl->regs + g->io_reg);
+			val = msm_readl_io(pctrl, g);
 			if (arg)
 				val |= BIT(g->out_bit);
 			else
 				val &= ~BIT(g->out_bit);
-			writel(val, pctrl->regs + g->io_reg);
+			msm_writel_io(val, pctrl, g);
 			raw_spin_unlock_irqrestore(&pctrl->lock, flags);
 
 			/* enable output */
@@ -401,10 +419,10 @@  static int msm_config_group_set(struct pinctrl_dev *pctldev,
 		}
 
 		raw_spin_lock_irqsave(&pctrl->lock, flags);
-		val = readl(pctrl->regs + g->ctl_reg);
+		val = msm_readl_ctl(pctrl, g);
 		val &= ~(mask << bit);
 		val |= arg << bit;
-		writel(val, pctrl->regs + g->ctl_reg);
+		msm_writel_ctl(val, pctrl, g);
 		raw_spin_unlock_irqrestore(&pctrl->lock, flags);
 	}
 
@@ -428,9 +446,9 @@  static int msm_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 
 	raw_spin_lock_irqsave(&pctrl->lock, flags);
 
-	val = readl(pctrl->regs + g->ctl_reg);
+	val = msm_readl_ctl(pctrl, g);
 	val &= ~BIT(g->oe_bit);
-	writel(val, pctrl->regs + g->ctl_reg);
+	msm_writel_ctl(val, pctrl, g);
 
 	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
 
@@ -448,16 +466,16 @@  static int msm_gpio_direction_output(struct gpio_chip *chip, unsigned offset, in
 
 	raw_spin_lock_irqsave(&pctrl->lock, flags);
 
-	val = readl(pctrl->regs + g->io_reg);
+	val = msm_readl_io(pctrl, g);
 	if (value)
 		val |= BIT(g->out_bit);
 	else
 		val &= ~BIT(g->out_bit);
-	writel(val, pctrl->regs + g->io_reg);
+	msm_writel_io(val, pctrl, g);
 
-	val = readl(pctrl->regs + g->ctl_reg);
+	val = msm_readl_ctl(pctrl, g);
 	val |= BIT(g->oe_bit);
-	writel(val, pctrl->regs + g->ctl_reg);
+	msm_writel_ctl(val, pctrl, g);
 
 	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
 
@@ -472,7 +490,7 @@  static int msm_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
 
 	g = &pctrl->soc->groups[offset];
 
-	val = readl(pctrl->regs + g->ctl_reg);
+	val = msm_readl_ctl(pctrl, g);
 
 	/* 0 = output, 1 = input */
 	return val & BIT(g->oe_bit) ? 0 : 1;
@@ -486,7 +504,7 @@  static int msm_gpio_get(struct gpio_chip *chip, unsigned offset)
 
 	g = &pctrl->soc->groups[offset];
 
-	val = readl(pctrl->regs + g->io_reg);
+	val = msm_readl_io(pctrl, g);
 	return !!(val & BIT(g->in_bit));
 }
 
@@ -501,12 +519,12 @@  static void msm_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 
 	raw_spin_lock_irqsave(&pctrl->lock, flags);
 
-	val = readl(pctrl->regs + g->io_reg);
+	val = msm_readl_io(pctrl, g);
 	if (value)
 		val |= BIT(g->out_bit);
 	else
 		val &= ~BIT(g->out_bit);
-	writel(val, pctrl->regs + g->io_reg);
+	msm_writel_io(val, pctrl, g);
 
 	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
 }
@@ -546,8 +564,8 @@  static void msm_gpio_dbg_show_one(struct seq_file *s,
 		return;
 
 	g = &pctrl->soc->groups[offset];
-	ctl_reg = readl(pctrl->regs + g->ctl_reg);
-	io_reg = readl(pctrl->regs + g->io_reg);
+	ctl_reg = msm_readl_ctl(pctrl, g);
+	io_reg = msm_readl_io(pctrl, g);
 
 	is_out = !!(ctl_reg & BIT(g->oe_bit));
 	func = (ctl_reg >> g->mux_bit) & 7;
@@ -622,14 +640,14 @@  static void msm_gpio_update_dual_edge_pos(struct msm_pinctrl *pctrl,
 	unsigned pol;
 
 	do {
-		val = readl(pctrl->regs + g->io_reg) & BIT(g->in_bit);
+		val = msm_readl_io(pctrl, g) & BIT(g->in_bit);
 
-		pol = readl(pctrl->regs + g->intr_cfg_reg);
+		pol = msm_readl_intr_cfg(pctrl, g);
 		pol ^= BIT(g->intr_polarity_bit);
-		writel(pol, pctrl->regs + g->intr_cfg_reg);
+		msm_writel_intr_cfg(val, pctrl, g);
 
-		val2 = readl(pctrl->regs + g->io_reg) & BIT(g->in_bit);
-		intstat = readl(pctrl->regs + g->intr_status_reg);
+		val2 = msm_readl_io(pctrl, g) & BIT(g->in_bit);
+		intstat = msm_readl_intr_status(pctrl, g);
 		if (intstat || (val == val2))
 			return;
 	} while (loop_limit-- > 0);
@@ -649,7 +667,7 @@  static void msm_gpio_irq_mask(struct irq_data *d)
 
 	raw_spin_lock_irqsave(&pctrl->lock, flags);
 
-	val = readl(pctrl->regs + g->intr_cfg_reg);
+	val = msm_readl_intr_cfg(pctrl, g);
 	/*
 	 * There are two bits that control interrupt forwarding to the CPU. The
 	 * RAW_STATUS_EN bit causes the level or edge sensed on the line to be
@@ -674,7 +692,7 @@  static void msm_gpio_irq_mask(struct irq_data *d)
 		val &= ~BIT(g->intr_raw_status_bit);
 
 	val &= ~BIT(g->intr_enable_bit);
-	writel(val, pctrl->regs + g->intr_cfg_reg);
+	msm_writel_intr_cfg(val, pctrl, g);
 
 	clear_bit(d->hwirq, pctrl->enabled_irqs);
 
@@ -693,10 +711,10 @@  static void msm_gpio_irq_unmask(struct irq_data *d)
 
 	raw_spin_lock_irqsave(&pctrl->lock, flags);
 
-	val = readl(pctrl->regs + g->intr_cfg_reg);
+	val = msm_readl_intr_cfg(pctrl, g);
 	val |= BIT(g->intr_raw_status_bit);
 	val |= BIT(g->intr_enable_bit);
-	writel(val, pctrl->regs + g->intr_cfg_reg);
+	msm_writel_intr_cfg(val, pctrl, g);
 
 	set_bit(d->hwirq, pctrl->enabled_irqs);
 
@@ -715,12 +733,12 @@  static void msm_gpio_irq_ack(struct irq_data *d)
 
 	raw_spin_lock_irqsave(&pctrl->lock, flags);
 
-	val = readl(pctrl->regs + g->intr_status_reg);
+	val = msm_readl_intr_status(pctrl, g);
 	if (g->intr_ack_high)
 		val |= BIT(g->intr_status_bit);
 	else
 		val &= ~BIT(g->intr_status_bit);
-	writel(val, pctrl->regs + g->intr_status_reg);
+	msm_writel_intr_status(val, pctrl, g);
 
 	if (test_bit(d->hwirq, pctrl->dual_edge_irqs))
 		msm_gpio_update_dual_edge_pos(pctrl, g, d);
@@ -749,17 +767,17 @@  static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 		clear_bit(d->hwirq, pctrl->dual_edge_irqs);
 
 	/* Route interrupts to application cpu */
-	val = readl(pctrl->regs + g->intr_target_reg);
+	val = msm_readl_intr_target(pctrl, g);
 	val &= ~(7 << g->intr_target_bit);
 	val |= g->intr_target_kpss_val << g->intr_target_bit;
-	writel(val, pctrl->regs + g->intr_target_reg);
+	msm_writel_intr_target(val, pctrl, g);
 
 	/* Update configuration for gpio.
 	 * RAW_STATUS_EN is left on for all gpio irqs. Due to the
 	 * internal circuitry of TLMM, toggling the RAW_STATUS
 	 * could cause the INTR_STATUS to be set for EDGE interrupts.
 	 */
-	val = readl(pctrl->regs + g->intr_cfg_reg);
+	val = msm_readl_intr_cfg(pctrl, g);
 	val |= BIT(g->intr_raw_status_bit);
 	if (g->intr_detection_width == 2) {
 		val &= ~(3 << g->intr_detection_bit);
@@ -807,7 +825,7 @@  static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 	} else {
 		BUG();
 	}
-	writel(val, pctrl->regs + g->intr_cfg_reg);
+	msm_writel_intr_cfg(val, pctrl, g);
 
 	if (test_bit(d->hwirq, pctrl->dual_edge_irqs))
 		msm_gpio_update_dual_edge_pos(pctrl, g, d);
@@ -891,7 +909,7 @@  static void msm_gpio_irq_handler(struct irq_desc *desc)
 	 */
 	for_each_set_bit(i, pctrl->enabled_irqs, pctrl->chip.ngpio) {
 		g = &pctrl->soc->groups[i];
-		val = readl(pctrl->regs + g->intr_status_reg);
+		val = msm_readl_intr_status(pctrl, g);
 		if (val & BIT(g->intr_status_bit)) {
 			irq_pin = irq_find_mapping(gc->irq.domain, i);
 			generic_handle_irq(irq_pin);