sh-pfc: Support pinmux info in driver data instead of platform data

Pinmux information should be provided by the pinmux driver, not arch
code. Make it possible to do so by supporting pinmux information passed
through the driver_data field in the platform ID table. Platform data
will remain supported until all arch code has been converted.

Rename the sh_pfc_platform_data structure to sh_pfc_soc_info to reflect
this.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

drivers/pinctrl/sh-pfc/core.c

@@ -213,9 +213,9 @@ static void sh_pfc_write_config_reg(struct sh_pfc *pfc,
 	data &= mask;
 	data |= value;
 
-	if (pfc->pdata->unlock_reg)
+	if (pfc->info->unlock_reg)
 		sh_pfc_write_raw_reg(
-			sh_pfc_phys_to_virt(pfc, pfc->pdata->unlock_reg), 32,
+			sh_pfc_phys_to_virt(pfc, pfc->info->unlock_reg), 32,
 			~data);
 
 	sh_pfc_write_raw_reg(mapped_reg, crp->reg_width, data);
@@ -223,16 +223,16 @@ static void sh_pfc_write_config_reg(struct sh_pfc *pfc,
 
 static int sh_pfc_setup_data_reg(struct sh_pfc *pfc, unsigned gpio)
 {
-	struct pinmux_gpio *gpiop = &pfc->pdata->gpios[gpio];
+	struct pinmux_gpio *gpiop = &pfc->info->gpios[gpio];
 	struct pinmux_data_reg *data_reg;
 	int k, n;
 
-	if (!sh_pfc_enum_in_range(gpiop->enum_id, &pfc->pdata->data))
+	if (!sh_pfc_enum_in_range(gpiop->enum_id, &pfc->info->data))
 		return -1;
 
 	k = 0;
 	while (1) {
-		data_reg = pfc->pdata->data_regs + k;
+		data_reg = pfc->info->data_regs + k;
 
 		if (!data_reg->reg_width)
 			break;
@@ -261,12 +261,12 @@ static void sh_pfc_setup_data_regs(struct sh_pfc *pfc)
 	struct pinmux_data_reg *drp;
 	int k;
 
-	for (k = pfc->pdata->first_gpio; k <= pfc->pdata->last_gpio; k++)
+	for (k = pfc->info->first_gpio; k <= pfc->info->last_gpio; k++)
 		sh_pfc_setup_data_reg(pfc, k);
 
 	k = 0;
 	while (1) {
-		drp = pfc->pdata->data_regs + k;
+		drp = pfc->info->data_regs + k;
 
 		if (!drp->reg_width)
 			break;
@@ -280,15 +280,15 @@ static void sh_pfc_setup_data_regs(struct sh_pfc *pfc)
 int sh_pfc_get_data_reg(struct sh_pfc *pfc, unsigned gpio,
 			struct pinmux_data_reg **drp, int *bitp)
 {
-	struct pinmux_gpio *gpiop = &pfc->pdata->gpios[gpio];
+	struct pinmux_gpio *gpiop = &pfc->info->gpios[gpio];
 	int k, n;
 
-	if (!sh_pfc_enum_in_range(gpiop->enum_id, &pfc->pdata->data))
+	if (!sh_pfc_enum_in_range(gpiop->enum_id, &pfc->info->data))
 		return -1;
 
 	k = (gpiop->flags & PINMUX_FLAG_DREG) >> PINMUX_FLAG_DREG_SHIFT;
 	n = (gpiop->flags & PINMUX_FLAG_DBIT) >> PINMUX_FLAG_DBIT_SHIFT;
-	*drp = pfc->pdata->data_regs + k;
+	*drp = pfc->info->data_regs + k;
 	*bitp = n;
 	return 0;
 }
@@ -303,7 +303,7 @@ static int sh_pfc_get_config_reg(struct sh_pfc *pfc, pinmux_enum_t enum_id,
 
 	k = 0;
 	while (1) {
-		config_reg = pfc->pdata->cfg_regs + k;
+		config_reg = pfc->info->cfg_regs + k;
 
 		r_width = config_reg->reg_width;
 		f_width = config_reg->field_width;
@@ -341,12 +341,12 @@ static int sh_pfc_get_config_reg(struct sh_pfc *pfc, pinmux_enum_t enum_id,
 int sh_pfc_gpio_to_enum(struct sh_pfc *pfc, unsigned gpio, int pos,
 			pinmux_enum_t *enum_idp)
 {
-	pinmux_enum_t enum_id = pfc->pdata->gpios[gpio].enum_id;
-	pinmux_enum_t *data = pfc->pdata->gpio_data;
+	pinmux_enum_t enum_id = pfc->info->gpios[gpio].enum_id;
+	pinmux_enum_t *data = pfc->info->gpio_data;
 	int k;
 
-	if (!sh_pfc_enum_in_range(enum_id, &pfc->pdata->data)) {
-		if (!sh_pfc_enum_in_range(enum_id, &pfc->pdata->mark)) {
+	if (!sh_pfc_enum_in_range(enum_id, &pfc->info->data)) {
+		if (!sh_pfc_enum_in_range(enum_id, &pfc->info->mark)) {
 			pr_err("non data/mark enum_id for gpio %d\n", gpio);
 			return -1;
 		}
@@ -357,7 +357,7 @@ int sh_pfc_gpio_to_enum(struct sh_pfc *pfc, unsigned gpio, int pos,
 		return pos + 1;
 	}
 
-	for (k = 0; k < pfc->pdata->gpio_data_size; k++) {
+	for (k = 0; k < pfc->info->gpio_data_size; k++) {
 		if (data[k] == enum_id) {
 			*enum_idp = data[k + 1];
 			return k + 1;
@@ -384,19 +384,19 @@ int sh_pfc_config_gpio(struct sh_pfc *pfc, unsigned gpio, int pinmux_type,
 		break;
 
 	case PINMUX_TYPE_OUTPUT:
-		range = &pfc->pdata->output;
+		range = &pfc->info->output;
 		break;
 
 	case PINMUX_TYPE_INPUT:
-		range = &pfc->pdata->input;
+		range = &pfc->info->input;
 		break;
 
 	case PINMUX_TYPE_INPUT_PULLUP:
-		range = &pfc->pdata->input_pu;
+		range = &pfc->info->input_pu;
 		break;
 
 	case PINMUX_TYPE_INPUT_PULLDOWN:
-		range = &pfc->pdata->input_pd;
+		range = &pfc->info->input_pd;
 		break;
 
 	default:
@@ -416,7 +416,7 @@ int sh_pfc_config_gpio(struct sh_pfc *pfc, unsigned gpio, int pinmux_type,
 			break;
 
 		/* first check if this is a function enum */
-		in_range = sh_pfc_enum_in_range(enum_id, &pfc->pdata->function);
+		in_range = sh_pfc_enum_in_range(enum_id, &pfc->info->function);
 		if (!in_range) {
 			/* not a function enum */
 			if (range) {
@@ -482,7 +482,7 @@ int sh_pfc_config_gpio(struct sh_pfc *pfc, unsigned gpio, int pinmux_type,
 
 static int sh_pfc_probe(struct platform_device *pdev)
 {
-	struct sh_pfc_platform_data *pdata = pdev->dev.platform_data;
+	struct sh_pfc_soc_info *info;
 	struct sh_pfc *pfc;
 	int ret;
 
@@ -491,14 +491,16 @@ static int sh_pfc_probe(struct platform_device *pdev)
 	 */
 	BUILD_BUG_ON(PINMUX_FLAG_TYPE > ((1 << PINMUX_FLAG_DBIT_SHIFT) - 1));
 
-	if (pdata == NULL)
+	info = pdev->id_entry->driver_data
+	      ? (void *)pdev->id_entry->driver_data : pdev->dev.platform_data;
+	if (info == NULL)
 		return -ENODEV;
 
 	pfc = devm_kzalloc(&pdev->dev, sizeof(pfc), GFP_KERNEL);
 	if (pfc == NULL)
 		return -ENOMEM;
 
-	pfc->pdata = pdata;
+	pfc->info = info;
 	pfc->dev = &pdev->dev;
 
 	ret = sh_pfc_ioremap(pfc, pdev);
@@ -534,7 +536,7 @@ static int sh_pfc_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, pfc);
 
-	pr_info("%s support registered\n", pdata->name);
+	pr_info("%s support registered\n", info->name);
 
 	return 0;
 }

drivers/pinctrl/sh-pfc/core.h

@@ -25,7 +25,7 @@ struct sh_pfc_pinctrl;
 
 struct sh_pfc {
 	struct device *dev;
-	struct sh_pfc_platform_data *pdata;
+	struct sh_pfc_soc_info *info;
 	spinlock_t lock;
 
 	unsigned int num_windows;

drivers/pinctrl/sh-pfc/gpio.c

@@ -106,11 +106,11 @@ static int sh_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
 		if (pos <= 0 || !enum_id)
 			break;
 
-		for (i = 0; i < pfc->pdata->gpio_irq_size; i++) {
-			enum_ids = pfc->pdata->gpio_irq[i].enum_ids;
+		for (i = 0; i < pfc->info->gpio_irq_size; i++) {
+			enum_ids = pfc->info->gpio_irq[i].enum_ids;
 			for (k = 0; enum_ids[k]; k++) {
 				if (enum_ids[k] == enum_id)
-					return pfc->pdata->gpio_irq[i].irq;
+					return pfc->info->gpio_irq[i].irq;
 			}
 		}
 	}
@@ -131,12 +131,12 @@ static void sh_pfc_gpio_setup(struct sh_pfc_chip *chip)
 	gc->set = sh_gpio_set;
 	gc->to_irq = sh_gpio_to_irq;
 
-	WARN_ON(pfc->pdata->first_gpio != 0); /* needs testing */
+	WARN_ON(pfc->info->first_gpio != 0); /* needs testing */
 
-	gc->label = pfc->pdata->name;
+	gc->label = pfc->info->name;
 	gc->owner = THIS_MODULE;
-	gc->base = pfc->pdata->first_gpio;
-	gc->ngpio = (pfc->pdata->last_gpio - pfc->pdata->first_gpio) + 1;
+	gc->base = pfc->info->first_gpio;
+	gc->ngpio = (pfc->info->last_gpio - pfc->info->first_gpio) + 1;
 }
 
 int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
@@ -159,8 +159,8 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
 	pfc->gpio = chip;
 
 	pr_info("%s handling gpio %d -> %d\n",
-		pfc->pdata->name, pfc->pdata->first_gpio,
-		pfc->pdata->last_gpio);
+		pfc->info->name, pfc->info->first_gpio,
+		pfc->info->last_gpio);
 
 	return 0;
 }

drivers/pinctrl/sh-pfc/pinctrl.c

@@ -140,7 +140,7 @@ static int sh_pfc_reconfig_pin(struct sh_pfc *pfc, unsigned offset,
 
 	spin_lock_irqsave(&pfc->lock, flags);
 
-	pinmux_type = pfc->pdata->gpios[offset].flags & PINMUX_FLAG_TYPE;
+	pinmux_type = pfc->info->gpios[offset].flags & PINMUX_FLAG_TYPE;
 
 	/*
 	 * See if the present config needs to first be de-configured.
@@ -172,8 +172,8 @@ static int sh_pfc_reconfig_pin(struct sh_pfc *pfc, unsigned offset,
 			       GPIO_CFG_REQ) != 0)
 		goto err;
 
-	pfc->pdata->gpios[offset].flags &= ~PINMUX_FLAG_TYPE;
-	pfc->pdata->gpios[offset].flags |= new_type;
+	pfc->info->gpios[offset].flags &= ~PINMUX_FLAG_TYPE;
+	pfc->info->gpios[offset].flags |= new_type;
 
 	ret = 0;
 
@@ -195,7 +195,7 @@ static int sh_pfc_gpio_request_enable(struct pinctrl_dev *pctldev,
 
 	spin_lock_irqsave(&pfc->lock, flags);
 
-	pinmux_type = pfc->pdata->gpios[offset].flags & PINMUX_FLAG_TYPE;
+	pinmux_type = pfc->info->gpios[offset].flags & PINMUX_FLAG_TYPE;
 
 	switch (pinmux_type) {
 	case PINMUX_TYPE_FUNCTION:
@@ -236,7 +236,7 @@ static void sh_pfc_gpio_disable_free(struct pinctrl_dev *pctldev,
 
 	spin_lock_irqsave(&pfc->lock, flags);
 
-	pinmux_type = pfc->pdata->gpios[offset].flags & PINMUX_FLAG_TYPE;
+	pinmux_type = pfc->info->gpios[offset].flags & PINMUX_FLAG_TYPE;
 
 	sh_pfc_config_gpio(pfc, offset, pinmux_type, GPIO_CFG_FREE);
 
@@ -270,7 +270,7 @@ static int sh_pfc_pinconf_get(struct pinctrl_dev *pctldev, unsigned pin,
 	struct sh_pfc_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev);
 	struct sh_pfc *pfc = pmx->pfc;
 
-	*config = pfc->pdata->gpios[pin].flags & PINMUX_FLAG_TYPE;
+	*config = pfc->info->gpios[pin].flags & PINMUX_FLAG_TYPE;
 
 	return 0;
 }
@@ -354,7 +354,7 @@ static int sh_pfc_map_gpios(struct sh_pfc *pfc, struct sh_pfc_pinctrl *pmx)
 	unsigned long flags;
 	int i;
 
-	pmx->nr_pads = pfc->pdata->last_gpio - pfc->pdata->first_gpio + 1;
+	pmx->nr_pads = pfc->info->last_gpio - pfc->info->first_gpio + 1;
 
 	pmx->pads = devm_kzalloc(pfc->dev, sizeof(*pmx->pads) * pmx->nr_pads,
 				 GFP_KERNEL);
@@ -373,9 +373,9 @@ static int sh_pfc_map_gpios(struct sh_pfc *pfc, struct sh_pfc_pinctrl *pmx)
 	 */
 	for (i = 0; i < pmx->nr_pads; i++) {
 		struct pinctrl_pin_desc *pin = pmx->pads + i;
-		struct pinmux_gpio *gpio = pfc->pdata->gpios + i;
+		struct pinmux_gpio *gpio = pfc->info->gpios + i;
 
-		pin->number = pfc->pdata->first_gpio + i;
+		pin->number = pfc->info->first_gpio + i;
 		pin->name = gpio->name;
 
 		/* XXX */
@@ -406,7 +406,7 @@ static int sh_pfc_map_functions(struct sh_pfc *pfc, struct sh_pfc_pinctrl *pmx)
 	spin_lock_irqsave(&pmx->lock, flags);
 
 	for (i = fn = 0; i < pmx->nr_pads; i++) {
-		struct pinmux_gpio *gpio = pfc->pdata->gpios + i;
+		struct pinmux_gpio *gpio = pfc->info->gpios + i;
 
 		if ((gpio->flags & PINMUX_FLAG_TYPE) == PINMUX_TYPE_FUNCTION)
 			pmx->functions[fn++] = gpio;
@@ -443,10 +443,10 @@ int sh_pfc_register_pinctrl(struct sh_pfc *pfc)
 	if (IS_ERR(pmx->pctl))
 		return PTR_ERR(pmx->pctl);
 
-	sh_pfc_gpio_range.npins = pfc->pdata->last_gpio
-				- pfc->pdata->first_gpio + 1;
-	sh_pfc_gpio_range.base = pfc->pdata->first_gpio;
-	sh_pfc_gpio_range.pin_base = pfc->pdata->first_gpio;
+	sh_pfc_gpio_range.npins = pfc->info->last_gpio
+				- pfc->info->first_gpio + 1;
+	sh_pfc_gpio_range.base = pfc->info->first_gpio;
+	sh_pfc_gpio_range.pin_base = pfc->info->first_gpio;
 
 	pinctrl_add_gpio_range(pmx->pctl, &sh_pfc_gpio_range);
 

include/linux/sh_pfc.h

@@ -88,7 +88,7 @@ struct pinmux_range {
 	pinmux_enum_t force;
 };
 
-struct sh_pfc_platform_data {
+struct sh_pfc_soc_info {
 	char *name;
 	pinmux_enum_t reserved_id;
 	struct pinmux_range data;
@@ -115,7 +115,7 @@ struct sh_pfc_platform_data {
 };
 
 /* XXX compat for now */
-#define pinmux_info sh_pfc_platform_data
+#define pinmux_info sh_pfc_soc_info
 
 enum { GPIO_CFG_DRYRUN, GPIO_CFG_REQ, GPIO_CFG_FREE };