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Subject[PATCH 15/19] mc13xxx: mfd_cell is now implicitly available to drivers

No need to explicitly set the cell's platform_data/data_size.

In this case, move the various platform_data pointers
to driver_data. All of the clients which make use of it
are also changed.

Mfd-core makes a copy of platform_data, but driver_data keeps a pointer
to the original data. Because each cell's platform_data previously
pointed to a local (stack) variable, the various ARM mach types that set
the pdata are updated to keep the memory around.

Signed-off-by: Andres Salomon <dilinger@queued.net>
---
arch/arm/mach-imx/mach-mx27_3ds.c | 8 ++++++--
arch/arm/mach-imx/mach-pcm038.c | 6 +++++-
arch/arm/mach-mx3/mach-mx31_3ds.c | 6 +++++-
arch/arm/mach-mx3/mach-mx31moboard.c | 6 +++++-
drivers/leds/leds-mc13783.c | 15 +++++++++------
drivers/mfd/mc13xxx-core.c | 20 ++++++--------------
drivers/regulator/mc13783-regulator.c | 6 +++---
drivers/regulator/mc13892-regulator.c | 6 +++---
drivers/regulator/mc13xxx.h | 1 +
include/linux/mfd/mc13xxx.h | 3 +--
10 files changed, 44 insertions(+), 33 deletions(-)

diff --git a/arch/arm/mach-imx/mach-mx27_3ds.c b/arch/arm/mach-imx/mach-mx27_3ds.c
index 1643315..edcecaa 100644
--- a/arch/arm/mach-imx/mach-mx27_3ds.c
+++ b/arch/arm/mach-imx/mach-mx27_3ds.c
@@ -226,10 +226,14 @@ static struct mc13783_regulator_init_data mx27_3ds_regulators[] = {
},
};

-/* MC13783 */
-static struct mc13783_platform_data mc13783_pdata __initdata = {
+static struct mc13783_regulator_platform_data mx27_regs = {
.regulators = mx27_3ds_regulators,
.num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
+};
+
+/* MC13783 */
+static struct mc13783_platform_data mc13783_pdata __initdata = {
+ .regulators = &mx27_regs,
.flags = MC13783_USE_REGULATOR,
};

diff --git a/arch/arm/mach-imx/mach-pcm038.c b/arch/arm/mach-imx/mach-pcm038.c
index 5056148..b5ae8cc 100644
--- a/arch/arm/mach-imx/mach-pcm038.c
+++ b/arch/arm/mach-imx/mach-pcm038.c
@@ -262,9 +262,13 @@ static struct mc13783_regulator_init_data pcm038_regulators[] = {
},
};

-static struct mc13783_platform_data pcm038_pmic = {
+static struct mc13783_regulator_platform_data pcm038_regs = {
.regulators = pcm038_regulators,
.num_regulators = ARRAY_SIZE(pcm038_regulators),
+};
+
+static struct mc13783_platform_data pcm038_pmic = {
+ .regulators = &pcm038_regs,
.flags = MC13783_USE_ADC | MC13783_USE_REGULATOR |
MC13783_USE_TOUCHSCREEN,
};
diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c
index 0d65db8..3e613ee 100644
--- a/arch/arm/mach-mx3/mach-mx31_3ds.c
+++ b/arch/arm/mach-mx3/mach-mx31_3ds.c
@@ -156,9 +156,13 @@ static struct mc13783_regulator_init_data mx31_3ds_regulators[] = {
};

/* MC13783 */
-static struct mc13783_platform_data mc13783_pdata __initdata = {
+static struct mc13783_regulator_platform_data mc13783_regs = {
.regulators = mx31_3ds_regulators,
.num_regulators = ARRAY_SIZE(mx31_3ds_regulators),
+};
+
+static struct mc13783_platform_data mc13783_pdata __initdata = {
+ .regulators = &mc13783_regs,
.flags = MC13783_USE_REGULATOR | MC13783_USE_TOUCHSCREEN,
};

diff --git a/arch/arm/mach-mx3/mach-mx31moboard.c b/arch/arm/mach-mx3/mach-mx31moboard.c
index 1aa8d65..424fbd9 100644
--- a/arch/arm/mach-mx3/mach-mx31moboard.c
+++ b/arch/arm/mach-mx3/mach-mx31moboard.c
@@ -267,9 +267,13 @@ static struct mc13783_leds_platform_data moboard_leds = {
.tc2_period = MC13783_LED_PERIOD_10MS,
};

-static struct mc13783_platform_data moboard_pmic = {
+static struct mc13783_regulator_platform_data moboard_regs = {
.regulators = moboard_regulators,
.num_regulators = ARRAY_SIZE(moboard_regulators),
+};
+
+static struct mc13783_platform_data moboard_pmic = {
+ .regulators = &moboard_regs,
.leds = &moboard_leds,
.flags = MC13783_USE_REGULATOR | MC13783_USE_RTC |
MC13783_USE_ADC | MC13783_USE_LED,
diff --git a/drivers/leds/leds-mc13783.c b/drivers/leds/leds-mc13783.c
index f05bb08..687fb13 100644
--- a/drivers/leds/leds-mc13783.c
+++ b/drivers/leds/leds-mc13783.c
@@ -30,6 +30,7 @@ struct mc13783_led {
struct mc13783 *master;
enum led_brightness new_brightness;
int id;
+ int num_leds;
};

#define MC13783_REG_LED_CONTROL_0 51
@@ -181,9 +182,9 @@ static int __devinit mc13783_led_setup(struct mc13783_led *led, int max_current)
return ret;
}

-static int __devinit mc13783_leds_prepare(struct platform_device *pdev)
+static int __devinit mc13783_leds_prepare(struct platform_device *pdev,
+ struct mc13783_leds_platform_data *pdata)
{
- struct mc13783_leds_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct mc13783 *dev = dev_get_drvdata(pdev->dev.parent);
int ret = 0;
int reg = 0;
@@ -264,7 +265,7 @@ out:

static int __devinit mc13783_led_probe(struct platform_device *pdev)
{
- struct mc13783_leds_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ struct mc13783_leds_platform_data *pdata = platform_get_drvdata(pdev);
struct mc13783_led_platform_data *led_cur;
struct mc13783_led *led, *led_dat;
int ret, i;
@@ -286,12 +287,15 @@ static int __devinit mc13783_led_probe(struct platform_device *pdev)
return -ENOMEM;
}

- ret = mc13783_leds_prepare(pdev);
+ ret = mc13783_leds_prepare(pdev, pdata);
if (ret) {
dev_err(&pdev->dev, "unable to init led driver\n");
goto err_free;
}

+ /* no need to save the num of LEDs for any other elements of 'led' */
+ led[0].num_leds = pdata->num_leds;
+
for (i = 0; i < pdata->num_leds; i++) {
led_dat = &led[i];
led_cur = &pdata->led[i];
@@ -351,12 +355,11 @@ err_free:

static int __devexit mc13783_led_remove(struct platform_device *pdev)
{
- struct mc13783_leds_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct mc13783_led *led = platform_get_drvdata(pdev);
struct mc13783 *dev = dev_get_drvdata(pdev->dev.parent);
int i;

- for (i = 0; i < pdata->num_leds; i++) {
+ for (i = 0; i < led[0].num_leds; i++) {
led_classdev_unregister(&led[i].cdev);
cancel_work_sync(&led[i].work);
}
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index b9fcaf0..96842d9 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -683,14 +683,13 @@ out:
EXPORT_SYMBOL_GPL(mc13783_adc_do_conversion);

static int mc13xxx_add_subdevice_pdata(struct mc13xxx *mc13xxx,
- const char *format, void *pdata, size_t pdata_size)
+ const char *format, void *pdata)
{
char buf[30];
const char *name = mc13xxx_get_chipname(mc13xxx);

struct mfd_cell cell = {
- .platform_data = pdata,
- .data_size = pdata_size,
+ .driver_data = pdata,
};

/* there is no asnprintf in the kernel :-( */
@@ -706,7 +705,7 @@ static int mc13xxx_add_subdevice_pdata(struct mc13xxx *mc13xxx,

static int mc13xxx_add_subdevice(struct mc13xxx *mc13xxx, const char *format)
{
- return mc13xxx_add_subdevice_pdata(mc13xxx, format, NULL, 0);
+ return mc13xxx_add_subdevice_pdata(mc13xxx, format, NULL);
}

static int mc13xxx_probe(struct spi_device *spi)
@@ -764,13 +763,8 @@ err_revision:
mc13xxx_add_subdevice(mc13xxx, "%s-codec");

if (pdata->flags & MC13XXX_USE_REGULATOR) {
- struct mc13xxx_regulator_platform_data regulator_pdata = {
- .num_regulators = pdata->num_regulators,
- .regulators = pdata->regulators,
- };
-
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
- &regulator_pdata, sizeof(regulator_pdata));
+ pdata->regulators);
}

if (pdata->flags & MC13XXX_USE_RTC)
@@ -779,10 +773,8 @@ err_revision:
if (pdata->flags & MC13XXX_USE_TOUCHSCREEN)
mc13xxx_add_subdevice(mc13xxx, "%s-ts");

- if (pdata->flags & MC13XXX_USE_LED) {
- mc13xxx_add_subdevice_pdata(mc13xxx, "%s-led",
- pdata->leds, sizeof(*pdata->leds));
- }
+ if (pdata->flags & MC13XXX_USE_LED)
+ mc13xxx_add_subdevice_pdata(mc13xxx, "%s-led", pdata->leds);

return 0;
}
diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c
index 3e5d0c3..40748b7 100644
--- a/drivers/regulator/mc13783-regulator.c
+++ b/drivers/regulator/mc13783-regulator.c
@@ -337,7 +337,7 @@ static int __devinit mc13783_regulator_probe(struct platform_device *pdev)
struct mc13xxx_regulator_priv *priv;
struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
struct mc13783_regulator_platform_data *pdata =
- dev_get_platdata(&pdev->dev);
+ platform_get_drvdata(pdev);
struct mc13783_regulator_init_data *init_data;
int i, ret;

@@ -351,6 +351,7 @@ static int __devinit mc13783_regulator_probe(struct platform_device *pdev)

priv->mc13xxx_regulators = mc13783_regulators;
priv->mc13xxx = mc13783;
+ priv->pdata = pdata;

for (i = 0; i < pdata->num_regulators; i++) {
init_data = &pdata->regulators[i];
@@ -381,8 +382,7 @@ err:
static int __devexit mc13783_regulator_remove(struct platform_device *pdev)
{
struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
- struct mc13783_regulator_platform_data *pdata =
- dev_get_platdata(&pdev->dev);
+ struct mc13783_regulator_platform_data *pdata = priv->pdata;
int i;

platform_set_drvdata(pdev, NULL);
diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
index 1b8f739..4b3490b 100644
--- a/drivers/regulator/mc13892-regulator.c
+++ b/drivers/regulator/mc13892-regulator.c
@@ -521,7 +521,7 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
struct mc13xxx_regulator_priv *priv;
struct mc13xxx *mc13892 = dev_get_drvdata(pdev->dev.parent);
struct mc13xxx_regulator_platform_data *pdata =
- dev_get_platdata(&pdev->dev);
+ platform_get_drvdata(pdev);
struct mc13xxx_regulator_init_data *init_data;
int i, ret;
u32 val;
@@ -534,6 +534,7 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)

priv->mc13xxx_regulators = mc13892_regulators;
priv->mc13xxx = mc13892;
+ priv->pdata = pdata;

mc13xxx_lock(mc13892);
ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val);
@@ -595,8 +596,7 @@ err_free:
static int __devexit mc13892_regulator_remove(struct platform_device *pdev)
{
struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
- struct mc13xxx_regulator_platform_data *pdata =
- dev_get_platdata(&pdev->dev);
+ struct mc13xxx_regulator_platform_data *pdata = priv->pdata;
int i;

platform_set_drvdata(pdev, NULL);
diff --git a/drivers/regulator/mc13xxx.h b/drivers/regulator/mc13xxx.h
index 2775826..5430177 100644
--- a/drivers/regulator/mc13xxx.h
+++ b/drivers/regulator/mc13xxx.h
@@ -28,6 +28,7 @@ struct mc13xxx_regulator {
struct mc13xxx_regulator_priv {
struct mc13xxx *mc13xxx;
u32 powermisc_pwgt_state;
+ struct mc13xxx_regulator_platform_data *pdata;
struct mc13xxx_regulator *mc13xxx_regulators;
struct regulator_dev *regulators[];
};
diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
index a1d391b..052b133 100644
--- a/include/linux/mfd/mc13xxx.h
+++ b/include/linux/mfd/mc13xxx.h
@@ -146,8 +146,7 @@ struct mc13xxx_platform_data {
#define MC13XXX_USE_LED (1 << 5)
unsigned int flags;

- int num_regulators;
- struct mc13xxx_regulator_init_data *regulators;
+ struct mc13xxx_regulator_platform_data *regulators;
struct mc13xxx_leds_platform_data *leds;
};

--
1.7.2.3


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