sh-pfc: Split platform data from the sh_pfc structure

Create a sh_pfc_platform_data structure to store platform data and
reference it from the core sh_pfc structure.

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>

diff --git a/drivers/sh/pfc/core.c b/drivers/sh/pfc/core.c
index 68169373c98bcd57c15b95cd0d348c25e75b154c..ecbe51d9f563f82b35eb94e1a02fc196fa578695 100644 (file)
--- a/drivers/sh/pfc/core.c
+++ b/drivers/sh/pfc/core.c
@@ -21,18 +21,13 @@
 #include <linux/ioport.h>
 #include <linux/pinctrl/machine.h>
 
-static struct sh_pfc *sh_pfc __read_mostly;
-
-static inline bool sh_pfc_initialized(void)
-{
-       return !!sh_pfc;
-}
+static struct sh_pfc sh_pfc __read_mostly;
 
 static void pfc_iounmap(struct sh_pfc *pfc)
 {
        int k;
 
-       for (k = 0; k < pfc->num_resources; k++)
+       for (k = 0; k < pfc->pdata->num_resources; k++)
                if (pfc->window[k].virt)
                        iounmap(pfc->window[k].virt);
 
@@ -45,16 +40,16 @@ static int pfc_ioremap(struct sh_pfc *pfc)
        struct resource *res;
        int k;
 
-       if (!pfc->num_resources)
+       if (!pfc->pdata->num_resources)
                return 0;
 
-       pfc->window = kzalloc(pfc->num_resources * sizeof(*pfc->window),
+       pfc->window = kzalloc(pfc->pdata->num_resources * sizeof(*pfc->window),
                              GFP_NOWAIT);
        if (!pfc->window)
                goto err1;
 
-       for (k = 0; k < pfc->num_resources; k++) {
-               res = pfc->resource + k;
+       for (k = 0; k < pfc->pdata->num_resources; k++) {
+               res = pfc->pdata->resource + k;
                WARN_ON(resource_type(res) != IORESOURCE_MEM);
                pfc->window[k].phys = res->start;
                pfc->window[k].size = resource_size(res);
@@ -79,7 +74,7 @@ static void __iomem *pfc_phys_to_virt(struct sh_pfc *pfc,
        int k;
 
        /* scan through physical windows and convert address */
-       for (k = 0; k < pfc->num_resources; k++) {
+       for (k = 0; k < pfc->pdata->num_resources; k++) {
                window = pfc->window + k;
 
                if (address < window->phys)
@@ -232,8 +227,8 @@ static void write_config_reg(struct sh_pfc *pfc,
        data &= mask;
        data |= value;
 
-       if (pfc->unlock_reg)
-               gpio_write_raw_reg(pfc_phys_to_virt(pfc, pfc->unlock_reg),
+       if (pfc->pdata->unlock_reg)
+               gpio_write_raw_reg(pfc_phys_to_virt(pfc, pfc->pdata->unlock_reg),
                                   32, ~data);
 
        gpio_write_raw_reg(mapped_reg, crp->reg_width, data);
@@ -241,16 +236,16 @@ static void write_config_reg(struct sh_pfc *pfc,
 
 static int setup_data_reg(struct sh_pfc *pfc, unsigned gpio)
 {
-       struct pinmux_gpio *gpiop = &pfc->gpios[gpio];
+       struct pinmux_gpio *gpiop = &pfc->pdata->gpios[gpio];
        struct pinmux_data_reg *data_reg;
        int k, n;
 
-       if (!enum_in_range(gpiop->enum_id, &pfc->data))
+       if (!enum_in_range(gpiop->enum_id, &pfc->pdata->data))
                return -1;
 
        k = 0;
        while (1) {
-               data_reg = pfc->data_regs + k;
+               data_reg = pfc->pdata->data_regs + k;
 
                if (!data_reg->reg_width)
                        break;
@@ -279,12 +274,12 @@ static void setup_data_regs(struct sh_pfc *pfc)
        struct pinmux_data_reg *drp;
        int k;
 
-       for (k = pfc->first_gpio; k <= pfc->last_gpio; k++)
+       for (k = pfc->pdata->first_gpio; k <= pfc->pdata->last_gpio; k++)
                setup_data_reg(pfc, k);
 
        k = 0;
        while (1) {
-               drp = pfc->data_regs + k;
+               drp = pfc->pdata->data_regs + k;
 
                if (!drp->reg_width)
                        break;
@@ -298,15 +293,15 @@ static void 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->gpios[gpio];
+       struct pinmux_gpio *gpiop = &pfc->pdata->gpios[gpio];
        int k, n;
 
-       if (!enum_in_range(gpiop->enum_id, &pfc->data))
+       if (!enum_in_range(gpiop->enum_id, &pfc->pdata->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->data_regs + k;
+       *drp = pfc->pdata->data_regs + k;
        *bitp = n;
        return 0;
 }
@@ -323,7 +318,7 @@ static int get_config_reg(struct sh_pfc *pfc, pinmux_enum_t enum_id,
 
        k = 0;
        while (1) {
-               config_reg = pfc->cfg_regs + k;
+               config_reg = pfc->pdata->cfg_regs + k;
 
                r_width = config_reg->reg_width;
                f_width = config_reg->field_width;
@@ -361,12 +356,12 @@ static int 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->gpios[gpio].enum_id;
-       pinmux_enum_t *data = pfc->gpio_data;
+       pinmux_enum_t enum_id = pfc->pdata->gpios[gpio].enum_id;
+       pinmux_enum_t *data = pfc->pdata->gpio_data;
        int k;
 
-       if (!enum_in_range(enum_id, &pfc->data)) {
-               if (!enum_in_range(enum_id, &pfc->mark)) {
+       if (!enum_in_range(enum_id, &pfc->pdata->data)) {
+               if (!enum_in_range(enum_id, &pfc->pdata->mark)) {
                        pr_err("non data/mark enum_id for gpio %d\n", gpio);
                        return -1;
                }
@@ -377,7 +372,7 @@ int sh_pfc_gpio_to_enum(struct sh_pfc *pfc, unsigned gpio, int pos,
                return pos + 1;
        }
 
-       for (k = 0; k < pfc->gpio_data_size; k++) {
+       for (k = 0; k < pfc->pdata->gpio_data_size; k++) {
                if (data[k] == enum_id) {
                        *enum_idp = data[k + 1];
                        return k + 1;
@@ -405,19 +400,19 @@ int sh_pfc_config_gpio(struct sh_pfc *pfc, unsigned gpio, int pinmux_type,
                break;
 
        case PINMUX_TYPE_OUTPUT:
-               range = &pfc->output;
+               range = &pfc->pdata->output;
                break;
 
        case PINMUX_TYPE_INPUT:
-               range = &pfc->input;
+               range = &pfc->pdata->input;
                break;
 
        case PINMUX_TYPE_INPUT_PULLUP:
-               range = &pfc->input_pu;
+               range = &pfc->pdata->input_pu;
                break;
 
        case PINMUX_TYPE_INPUT_PULLDOWN:
-               range = &pfc->input_pd;
+               range = &pfc->pdata->input_pd;
                break;
 
        default:
@@ -437,7 +432,7 @@ 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 = enum_in_range(enum_id, &pfc->function);
+               in_range = enum_in_range(enum_id, &pfc->pdata->function);
                if (!in_range) {
                        /* not a function enum */
                        if (range) {
@@ -502,7 +497,7 @@ int sh_pfc_config_gpio(struct sh_pfc *pfc, unsigned gpio, int pinmux_type,
 }
 EXPORT_SYMBOL_GPL(sh_pfc_config_gpio);
 
-int register_sh_pfc(struct sh_pfc *pfc)
+int register_sh_pfc(struct sh_pfc_platform_data *pdata)
 {
        int (*initroutine)(struct sh_pfc *) = NULL;
        int ret;
@@ -512,26 +507,28 @@ int register_sh_pfc(struct sh_pfc *pfc)
         */
        BUILD_BUG_ON(PINMUX_FLAG_TYPE > ((1 << PINMUX_FLAG_DBIT_SHIFT) - 1));
 
-       if (sh_pfc)
+       if (sh_pfc.pdata)
                return -EBUSY;
 
-       ret = pfc_ioremap(pfc);
-       if (unlikely(ret < 0))
+       sh_pfc.pdata = pdata;
+
+       ret = pfc_ioremap(&sh_pfc);
+       if (unlikely(ret < 0)) {
+               sh_pfc.pdata = NULL;
                return ret;
+       }
 
-       spin_lock_init(&pfc->lock);
+       spin_lock_init(&sh_pfc.lock);
 
        pinctrl_provide_dummies();
-       setup_data_regs(pfc);
-
-       sh_pfc = pfc;
+       setup_data_regs(&sh_pfc);
 
        /*
         * Initialize pinctrl bindings first
         */
        initroutine = symbol_request(sh_pfc_register_pinctrl);
        if (initroutine) {
-               ret = (*initroutine)(pfc);
+               ret = (*initroutine)(&sh_pfc);
                symbol_put_addr(initroutine);
 
                if (unlikely(ret != 0))
@@ -546,7 +543,7 @@ int register_sh_pfc(struct sh_pfc *pfc)
         */
        initroutine = symbol_request(sh_pfc_register_gpiochip);
        if (initroutine) {
-               ret = (*initroutine)(pfc);
+               ret = (*initroutine)(&sh_pfc);
                symbol_put_addr(initroutine);
 
                /*
@@ -560,13 +557,13 @@ int register_sh_pfc(struct sh_pfc *pfc)
                }
        }
 
-       pr_info("%s support registered\n", pfc->name);
+       pr_info("%s support registered\n", sh_pfc.pdata->name);
 
        return 0;
 
 err:
-       pfc_iounmap(pfc);
-       sh_pfc = NULL;
+       pfc_iounmap(&sh_pfc);
+       sh_pfc.pdata = NULL;
 
        return ret;
 }

diff --git a/drivers/sh/pfc/gpio.c b/drivers/sh/pfc/gpio.c
index 6a24f07c2013b0bf4fce27384edc1e3e31ba12ee..7597a024fac8ef569e6e5acc316014194a5b4c14 100644 (file)
--- a/drivers/sh/pfc/gpio.c
+++ b/drivers/sh/pfc/gpio.c
@@ -103,11 +103,11 @@ static int sh_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
                if (pos <= 0 || !enum_id)
                        break;
 
-               for (i = 0; i < pfc->gpio_irq_size; i++) {
-                       enum_ids = pfc->gpio_irq[i].enum_ids;
+               for (i = 0; i < pfc->pdata->gpio_irq_size; i++) {
+                       enum_ids = pfc->pdata->gpio_irq[i].enum_ids;
                        for (k = 0; enum_ids[k]; k++) {
                                if (enum_ids[k] == enum_id)
-                                       return pfc->gpio_irq[i].irq;
+                                       return pfc->pdata->gpio_irq[i].irq;
                        }
                }
        }
@@ -128,12 +128,12 @@ 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->first_gpio != 0); /* needs testing */
+       WARN_ON(pfc->pdata->first_gpio != 0); /* needs testing */
 
-       gc->label = pfc->name;
+       gc->label = pfc->pdata->name;
        gc->owner = THIS_MODULE;
-       gc->base = pfc->first_gpio;
-       gc->ngpio = (pfc->last_gpio - pfc->first_gpio) + 1;
+       gc->base = pfc->pdata->first_gpio;
+       gc->ngpio = (pfc->pdata->last_gpio - pfc->pdata->first_gpio) + 1;
 }
 
 int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
@@ -154,7 +154,8 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
                kfree(chip);
 
        pr_info("%s handling gpio %d -> %d\n",
-               pfc->name, pfc->first_gpio, pfc->last_gpio);
+               pfc->pdata->name, pfc->pdata->first_gpio,
+               pfc->pdata->last_gpio);
 
        return ret;
 }
@@ -179,7 +180,7 @@ static int sh_pfc_gpio_probe(struct platform_device *pdev)
        chip = gpio_to_pfc_chip(gc);
        platform_set_drvdata(pdev, chip);
 
-       pr_info("attaching to GPIO chip %s\n", chip->pfc->name);
+       pr_info("attaching to GPIO chip %s\n", chip->pfc->pdata->name);
 
        return 0;
 }

diff --git a/drivers/sh/pfc/pinctrl.c b/drivers/sh/pfc/pinctrl.c
index 4109b769eac034160b718a847f0bcfd83c02a2f8..3a2c77d3248f79bd5d074fc9758f7a83cd064dc8 100644 (file)
--- a/drivers/sh/pfc/pinctrl.c
+++ b/drivers/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->gpios[offset].flags & PINMUX_FLAG_TYPE;
+       pinmux_type = pfc->pdata->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->gpios[offset].flags &= ~PINMUX_FLAG_TYPE;
-       pfc->gpios[offset].flags |= new_type;
+       pfc->pdata->gpios[offset].flags &= ~PINMUX_FLAG_TYPE;
+       pfc->pdata->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->gpios[offset].flags & PINMUX_FLAG_TYPE;
+       pinmux_type = pfc->pdata->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->gpios[offset].flags & PINMUX_FLAG_TYPE;
+       pinmux_type = pfc->pdata->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->gpios[pin].flags & PINMUX_FLAG_TYPE;
+       *config = pfc->pdata->gpios[pin].flags & PINMUX_FLAG_TYPE;
 
        return 0;
 }
@@ -356,7 +356,7 @@ static int sh_pfc_map_gpios(struct sh_pfc *pfc, struct sh_pfc_pinctrl *pmx)
        unsigned long flags;
        int i;
 
-       pmx->nr_pads = pfc->last_gpio - pfc->first_gpio + 1;
+       pmx->nr_pads = pfc->pdata->last_gpio - pfc->pdata->first_gpio + 1;
 
        pmx->pads = kmalloc(sizeof(struct pinctrl_pin_desc) * pmx->nr_pads,
                            GFP_KERNEL);
@@ -375,9 +375,9 @@ 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->gpios + i;
+               struct pinmux_gpio *gpio = pfc->pdata->gpios + i;
 
-               pin->number = pfc->first_gpio + i;
+               pin->number = pfc->pdata->first_gpio + i;
                pin->name = gpio->name;
 
                /* XXX */
@@ -408,7 +408,7 @@ 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->gpios + i;
+               struct pinmux_gpio *gpio = pfc->pdata->gpios + i;
 
                if ((gpio->flags & PINMUX_FLAG_TYPE) == PINMUX_TYPE_FUNCTION)
                        pmx->functions[fn++] = gpio;
@@ -444,9 +444,10 @@ static int sh_pfc_pinctrl_probe(struct platform_device *pdev)
                goto free_functions;
        }
 
-       sh_pfc_gpio_range.npins = pfc->last_gpio - pfc->first_gpio + 1;
-       sh_pfc_gpio_range.base = pfc->first_gpio;
-       sh_pfc_gpio_range.pin_base = pfc->first_gpio;
+       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;
 
        pinctrl_add_gpio_range(sh_pfc_pmx->pctl, &sh_pfc_gpio_range);
 

diff --git a/include/linux/sh_pfc.h b/include/linux/sh_pfc.h
index c19a0925829a2bd136e6823a4cc750e2367bbb78..58587f94d67ac5eb4722d462e9541eca5c4d9e8c 100644 (file)
--- a/include/linux/sh_pfc.h
+++ b/include/linux/sh_pfc.h
@@ -94,7 +94,7 @@ struct pfc_window {
        unsigned long size;
 };
 
-struct sh_pfc {
+struct sh_pfc_platform_data {
        char *name;
        pinmux_enum_t reserved_id;
        struct pinmux_range data;
@@ -117,17 +117,21 @@ struct sh_pfc {
        struct pinmux_irq *gpio_irq;
        unsigned int gpio_irq_size;
 
-       spinlock_t lock;
-
        struct resource *resource;
        unsigned int num_resources;
-       struct pfc_window *window;
 
        unsigned long unlock_reg;
 };
 
+struct sh_pfc {
+       struct sh_pfc_platform_data *pdata;
+       spinlock_t lock;
+
+       struct pfc_window *window;
+};
+
 /* XXX compat for now */
-#define pinmux_info sh_pfc
+#define pinmux_info sh_pfc_platform_data
 
 /* drivers/sh/pfc/gpio.c */
 int sh_pfc_register_gpiochip(struct sh_pfc *pfc);
@@ -136,7 +140,7 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc);
 int sh_pfc_register_pinctrl(struct sh_pfc *pfc);
 
 /* drivers/sh/pfc/core.c */
-int register_sh_pfc(struct sh_pfc *pfc);
+int register_sh_pfc(struct sh_pfc_platform_data *pfc);
 
 int sh_pfc_read_bit(struct pinmux_data_reg *dr, unsigned long in_pos);
 void sh_pfc_write_bit(struct pinmux_data_reg *dr, unsigned long in_pos,
@@ -151,8 +155,8 @@ int sh_pfc_config_gpio(struct sh_pfc *pfc, unsigned gpio, int pinmux_type,
 /* xxx */
 static inline int register_pinmux(struct pinmux_info *pip)
 {
-       struct sh_pfc *pfc = pip;
-       return register_sh_pfc(pfc);
+       struct sh_pfc_platform_data *pdata = pip;
+       return register_sh_pfc(pdata);
 }
 
 enum { GPIO_CFG_DRYRUN, GPIO_CFG_REQ, GPIO_CFG_FREE };