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mfd: Adopt mfd_data in 88pm860x backlight
Copy 88pm860x platform data into different mfd_data structure for backlight driver. So move the identification of device node from backlight driver to mfd driver. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Haojian Zhuang
Samuel Ortiz
parent
d7e8c01a97
commit
adb70483f4
@ -20,12 +20,19 @@
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#define INT_STATUS_NUM 3
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char pm860x_backlight_name[][MFD_NAME_SIZE] = {
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"backlight-0",
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"backlight-1",
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"backlight-2",
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static struct resource bk_resources[] __initdata = {
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{PM8606_BACKLIGHT1, PM8606_BACKLIGHT1, "backlight-0", IORESOURCE_IO,},
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{PM8606_BACKLIGHT2, PM8606_BACKLIGHT2, "backlight-1", IORESOURCE_IO,},
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{PM8606_BACKLIGHT3, PM8606_BACKLIGHT3, "backlight-2", IORESOURCE_IO,},
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};
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EXPORT_SYMBOL(pm860x_backlight_name);
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static struct mfd_cell bk_devs[] __initdata = {
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{"88pm860x-backlight", 0,},
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{"88pm860x-backlight", 1,},
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{"88pm860x-backlight", 2,},
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};
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static struct pm860x_backlight_pdata bk_pdata[ARRAY_SIZE(bk_devs)];
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char pm860x_led_name[][MFD_NAME_SIZE] = {
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"led0-red",
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@ -37,34 +44,6 @@ char pm860x_led_name[][MFD_NAME_SIZE] = {
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};
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EXPORT_SYMBOL(pm860x_led_name);
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#define PM8606_BACKLIGHT_RESOURCE(_i, _x) \
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{ \
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.name = pm860x_backlight_name[_i], \
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.start = PM8606_##_x, \
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.end = PM8606_##_x, \
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.flags = IORESOURCE_IO, \
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}
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static struct resource backlight_resources[] = {
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PM8606_BACKLIGHT_RESOURCE(PM8606_BACKLIGHT1, WLED1A),
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PM8606_BACKLIGHT_RESOURCE(PM8606_BACKLIGHT2, WLED2A),
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PM8606_BACKLIGHT_RESOURCE(PM8606_BACKLIGHT3, WLED3A),
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};
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#define PM8606_BACKLIGHT_DEVS(_i) \
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{ \
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.name = "88pm860x-backlight", \
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.num_resources = 1, \
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.resources = &backlight_resources[_i], \
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.id = _i, \
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}
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static struct mfd_cell backlight_devs[] = {
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PM8606_BACKLIGHT_DEVS(PM8606_BACKLIGHT1),
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PM8606_BACKLIGHT_DEVS(PM8606_BACKLIGHT2),
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PM8606_BACKLIGHT_DEVS(PM8606_BACKLIGHT3),
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};
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#define PM8606_LED_RESOURCE(_i, _x) \
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{ \
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.name = pm860x_led_name[_i], \
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@ -595,23 +574,49 @@ static void device_irq_exit(struct pm860x_chip *chip)
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free_irq(chip->core_irq, chip);
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}
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static void __devinit device_bk_init(struct pm860x_chip *chip,
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struct i2c_client *i2c,
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struct pm860x_platform_data *pdata)
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{
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int ret;
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int i, j, id;
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if ((pdata == NULL) || (pdata->backlight == NULL))
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return;
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if (pdata->num_backlights > ARRAY_SIZE(bk_devs))
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pdata->num_backlights = ARRAY_SIZE(bk_devs);
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for (i = 0; i < pdata->num_backlights; i++) {
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memcpy(&bk_pdata[i], &pdata->backlight[i],
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sizeof(struct pm860x_backlight_pdata));
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bk_devs[i].mfd_data = &bk_pdata[i];
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for (j = 0; j < ARRAY_SIZE(bk_devs); j++) {
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id = bk_resources[j].start;
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if (bk_pdata[i].flags != id)
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continue;
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bk_devs[i].num_resources = 1;
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bk_devs[i].resources = &bk_resources[j];
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ret = mfd_add_devices(chip->dev, 0,
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&bk_devs[i], 1,
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&bk_resources[j], 0);
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if (ret < 0) {
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dev_err(chip->dev, "Failed to add "
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"backlight subdev\n");
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return;
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}
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}
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}
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}
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static void __devinit device_8606_init(struct pm860x_chip *chip,
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struct i2c_client *i2c,
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struct pm860x_platform_data *pdata)
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{
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int ret;
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if (pdata && pdata->backlight) {
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ret = mfd_add_devices(chip->dev, 0, &backlight_devs[0],
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ARRAY_SIZE(backlight_devs),
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&backlight_resources[0], 0);
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if (ret < 0) {
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dev_err(chip->dev, "Failed to add backlight "
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"subdev\n");
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goto out_dev;
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}
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}
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if (pdata && pdata->led) {
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ret = mfd_add_devices(chip->dev, 0, &led_devs[0],
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ARRAY_SIZE(led_devs),
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@ -624,7 +629,6 @@ static void __devinit device_8606_init(struct pm860x_chip *chip,
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}
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return;
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out_dev:
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mfd_remove_devices(chip->dev);
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device_irq_exit(chip);
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}
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@ -743,6 +747,7 @@ int __devinit pm860x_device_init(struct pm860x_chip *chip,
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switch (chip->id) {
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case CHIP_PM8606:
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device_bk_init(chip, chip->client, pdata);
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device_8606_init(chip, chip->client, pdata);
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break;
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case CHIP_PM8607:
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@ -753,6 +758,7 @@ int __devinit pm860x_device_init(struct pm860x_chip *chip,
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if (chip->companion) {
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switch (chip->id) {
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case CHIP_PM8607:
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device_bk_init(chip, chip->companion, pdata);
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device_8606_init(chip, chip->companion, pdata);
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break;
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case CHIP_PM8606:
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@ -12,11 +12,12 @@
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/fb.h>
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#include <linux/i2c.h>
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#include <linux/backlight.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/88pm860x.h>
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#include <linux/slab.h>
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#define MAX_BRIGHTNESS (0xFF)
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#define MIN_BRIGHTNESS (0)
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@ -161,32 +162,13 @@ static const struct backlight_ops pm860x_backlight_ops = {
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.get_brightness = pm860x_backlight_get_brightness,
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};
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static int __check_device(struct pm860x_backlight_pdata *pdata, char *name)
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{
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struct pm860x_backlight_pdata *p = pdata;
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int ret = -EINVAL;
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while (p && p->id) {
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if ((p->id != PM8606_ID_BACKLIGHT) || (p->flags < 0))
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break;
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if (!strncmp(name, pm860x_backlight_name[p->flags],
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MFD_NAME_SIZE)) {
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ret = (int)p->flags;
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break;
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}
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p++;
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}
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return ret;
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}
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static int pm860x_backlight_probe(struct platform_device *pdev)
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{
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struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
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struct pm860x_platform_data *pm860x_pdata;
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struct pm860x_backlight_pdata *pdata = NULL;
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struct pm860x_backlight_data *data;
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struct backlight_device *bl;
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struct mfd_cell *cell;
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struct resource *res;
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struct backlight_properties props;
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unsigned char value;
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@ -199,10 +181,10 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
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return -EINVAL;
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}
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if (pdev->dev.parent->platform_data) {
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pm860x_pdata = pdev->dev.parent->platform_data;
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pdata = pm860x_pdata->backlight;
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}
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cell = pdev->dev.platform_data;
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if (cell == NULL)
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return -ENODEV;
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pdata = cell->mfd_data;
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if (pdata == NULL) {
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dev_err(&pdev->dev, "platform data isn't assigned to "
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"backlight\n");
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@ -219,7 +201,7 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
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data->current_brightness = MAX_BRIGHTNESS;
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data->pwm = pdata->pwm;
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data->iset = pdata->iset;
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data->port = __check_device(pdata, name);
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data->port = pdata->flags;
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if (data->port < 0) {
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dev_err(&pdev->dev, "wrong platform data is assigned");
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kfree(data);
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@ -356,10 +356,10 @@ struct pm860x_platform_data {
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int i2c_port; /* Controlled by GI2C or PI2C */
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int irq_mode; /* Clear interrupt by read/write(0/1) */
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int irq_base; /* IRQ base number of 88pm860x */
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int num_backlights;
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struct regulator_init_data *regulator[PM8607_MAX_REGULATOR];
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};
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extern char pm860x_backlight_name[][MFD_NAME_SIZE];
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extern char pm860x_led_name[][MFD_NAME_SIZE];
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extern int pm860x_reg_read(struct i2c_client *, int);
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