Commit 48f286a2 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-next' of git://git.o-hand.com/linux-mfd

* 'for-next' of git://git.o-hand.com/linux-mfd:
  mfd: fix da903x warning
  mfd: fix MAINTAINERS entry
  mfd: Use the value of the final spin when reading the AUXADC
  mfd: Storage class should be before const qualifier
  mfd: PASIC3: supply clock_rate to DS1WM via driver_data
  mfd: remove DS1WM clock handling
  mfd: remove unused PASIC3 bus_shift field
  pxa/magician: remove deprecated .bus_shift from PASIC3 platform_data
  mfd: convert PASIC3 to use MFD core
  mfd: convert DS1WM to use MFD core
  mfd: Support active high IRQs on WM835x
  mfd: Use bulk read to fill WM8350 register cache
  mfd: remove duplicated #include from pcf50633
parents ea431793 fa15ce8a
......@@ -3051,8 +3051,9 @@ S: Maintained
MULTIFUNCTION DEVICES (MFD)
P: Samuel Ortiz
M: sameo@openedhand.com
M: sameo@linux.intel.com
L: linux-kernel@vger.kernel.org
T: git kernel.org:/pub/scm/linux/kernel/git/sameo/mfd-2.6.git
S: Supported
MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
......
......@@ -507,7 +507,6 @@ static struct resource pasic3_resources[] = {
};
static struct pasic3_platform_data pasic3_platform_data = {
.bus_shift = 2,
.led_pdata = &pasic3_leds_info,
.clock_rate = 4000000,
};
......
......@@ -52,6 +52,7 @@ config HTC_EGPIO
config HTC_PASIC3
tristate "HTC PASIC3 LED/DS1WM chip support"
select MFD_CORE
help
This core driver provides register access for the LED/DS1WM
chips labeled "AIC2" and "AIC3", found on HTC Blueangel and
......
......@@ -413,7 +413,7 @@ static void da903x_irq_work(struct work_struct *work)
enable_irq(chip->client->irq);
}
static int da903x_irq_handler(int irq, void *data)
static irqreturn_t da903x_irq_handler(int irq, void *data)
{
struct da903x_chip *chip = data;
......
......@@ -12,18 +12,17 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/ds1wm.h>
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/mfd/core.h>
#include <linux/mfd/ds1wm.h>
#include <linux/mfd/htc-pasic3.h>
struct pasic3_data {
void __iomem *mapping;
unsigned int bus_shift;
struct platform_device *ds1wm_pdev;
struct platform_device *led_pdev;
};
#define REG_ADDR 5
......@@ -65,46 +64,15 @@ EXPORT_SYMBOL(pasic3_read_register); /* for leds-pasic3 */
* LEDs
*/
static int led_device_add(struct device *pasic3_dev,
const struct pasic3_leds_machinfo *pdata)
{
struct pasic3_data *asic = pasic3_dev->driver_data;
struct platform_device *pdev;
int ret;
pdev = platform_device_alloc("pasic3-led", -1);
if (!pdev) {
dev_dbg(pasic3_dev, "failed to allocate LED platform device\n");
return -ENOMEM;
}
ret = platform_device_add_data(pdev, pdata,
sizeof(struct pasic3_leds_machinfo));
if (ret < 0) {
dev_dbg(pasic3_dev, "failed to add LED platform data\n");
goto exit_pdev_put;
}
pdev->dev.parent = pasic3_dev;
ret = platform_device_add(pdev);
if (ret < 0) {
dev_dbg(pasic3_dev, "failed to add LED platform device\n");
goto exit_pdev_put;
}
asic->led_pdev = pdev;
return 0;
exit_pdev_put:
platform_device_put(pdev);
return ret;
}
static struct mfd_cell led_cell __initdata = {
.name = "leds-pasic3",
};
/*
* DS1WM
*/
static void ds1wm_enable(struct platform_device *pdev)
static int ds1wm_enable(struct platform_device *pdev)
{
struct device *dev = pdev->dev.parent;
int c;
......@@ -113,9 +81,10 @@ static void ds1wm_enable(struct platform_device *pdev)
pasic3_write_register(dev, 0x28, c & 0x7f);
dev_dbg(dev, "DS1WM OWM_EN low (active) %02x\n", c & 0x7f);
return 0;
}
static void ds1wm_disable(struct platform_device *pdev)
static int ds1wm_disable(struct platform_device *pdev)
{
struct device *dev = pdev->dev.parent;
int c;
......@@ -124,56 +93,33 @@ static void ds1wm_disable(struct platform_device *pdev)
pasic3_write_register(dev, 0x28, c | 0x80);
dev_dbg(dev, "DS1WM OWM_EN high (inactive) %02x\n", c | 0x80);
return 0;
}
static struct ds1wm_platform_data ds1wm_pdata = {
.bus_shift = 2,
.enable = ds1wm_enable,
.disable = ds1wm_disable,
static struct ds1wm_driver_data ds1wm_pdata = {
.active_high = 0,
};
static int ds1wm_device_add(struct platform_device *pasic3_pdev, int bus_shift)
{
struct device *pasic3_dev = &pasic3_pdev->dev;
struct pasic3_data *asic = pasic3_dev->driver_data;
struct platform_device *pdev;
int ret;
pdev = platform_device_alloc("ds1wm", -1);
if (!pdev) {
dev_dbg(pasic3_dev, "failed to allocate DS1WM platform device\n");
return -ENOMEM;
}
ret = platform_device_add_resources(pdev, pasic3_pdev->resource,
pasic3_pdev->num_resources);
if (ret < 0) {
dev_dbg(pasic3_dev, "failed to add DS1WM resources\n");
goto exit_pdev_put;
}
ds1wm_pdata.bus_shift = asic->bus_shift;
ret = platform_device_add_data(pdev, &ds1wm_pdata,
sizeof(struct ds1wm_platform_data));
if (ret < 0) {
dev_dbg(pasic3_dev, "failed to add DS1WM platform data\n");
goto exit_pdev_put;
}
pdev->dev.parent = pasic3_dev;
ret = platform_device_add(pdev);
if (ret < 0) {
dev_dbg(pasic3_dev, "failed to add DS1WM platform device\n");
goto exit_pdev_put;
}
asic->ds1wm_pdev = pdev;
return 0;
static struct resource ds1wm_resources[] __initdata = {
[0] = {
.start = 0,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0,
.end = 0,
.flags = IORESOURCE_IRQ,
},
};
exit_pdev_put:
platform_device_put(pdev);
return ret;
}
static struct mfd_cell ds1wm_cell __initdata = {
.name = "ds1wm",
.enable = ds1wm_enable,
.disable = ds1wm_disable,
.driver_data = &ds1wm_pdata,
.num_resources = 2,
.resources = ds1wm_resources,
};
static int __init pasic3_probe(struct platform_device *pdev)
{
......@@ -182,12 +128,27 @@ static int __init pasic3_probe(struct platform_device *pdev)
struct pasic3_data *asic;
struct resource *r;
int ret;
int irq = 0;
r = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (r) {
ds1wm_resources[1].flags = IORESOURCE_IRQ | (r->flags &
(IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE));
irq = r->start;
}
r = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (r) {
ds1wm_resources[1].flags = IORESOURCE_IRQ | (r->flags &
(IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE));
irq = r->start;
}
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r)
return -ENXIO;
if (!request_mem_region(r->start, r->end - r->start + 1, "pasic3"))
if (!request_mem_region(r->start, resource_size(r), "pasic3"))
return -EBUSY;
asic = kzalloc(sizeof(struct pasic3_data), GFP_KERNEL);
......@@ -196,24 +157,33 @@ static int __init pasic3_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, asic);
if (pdata && pdata->bus_shift)
asic->bus_shift = pdata->bus_shift;
else
asic->bus_shift = 2;
asic->mapping = ioremap(r->start, r->end - r->start + 1);
asic->mapping = ioremap(r->start, resource_size(r));
if (!asic->mapping) {
dev_err(dev, "couldn't ioremap PASIC3\n");
kfree(asic);
return -ENOMEM;
}
ret = ds1wm_device_add(pdev, asic->bus_shift);
if (ret < 0)
dev_warn(dev, "failed to register DS1WM\n");
/* calculate bus shift from mem resource */
asic->bus_shift = (resource_size(r) - 5) >> 3;
if (pdata && pdata->clock_rate) {
ds1wm_pdata.clock_rate = pdata->clock_rate;
/* the first 5 PASIC3 registers control the DS1WM */
ds1wm_resources[0].end = (5 << asic->bus_shift) - 1;
ds1wm_cell.platform_data = &ds1wm_cell;
ds1wm_cell.data_size = sizeof(ds1wm_cell);
ret = mfd_add_devices(&pdev->dev, pdev->id,
&ds1wm_cell, 1, r, irq);
if (ret < 0)
dev_warn(dev, "failed to register DS1WM\n");
}
if (pdata->led_pdata) {
ret = led_device_add(dev, pdata->led_pdata);
if (pdata && pdata->led_pdata) {
led_cell.driver_data = pdata->led_pdata;
led_cell.platform_data = &led_cell;
led_cell.data_size = sizeof(ds1wm_cell);
ret = mfd_add_devices(&pdev->dev, pdev->id, &led_cell, 1, r, 0);
if (ret < 0)
dev_warn(dev, "failed to register LED device\n");
}
......@@ -226,14 +196,11 @@ static int pasic3_remove(struct platform_device *pdev)
struct pasic3_data *asic = platform_get_drvdata(pdev);
struct resource *r;
if (asic->led_pdev)
platform_device_unregister(asic->led_pdev);
if (asic->ds1wm_pdev)
platform_device_unregister(asic->ds1wm_pdev);
mfd_remove_devices(&pdev->dev);
iounmap(asic->mapping);
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(r->start, r->end - r->start + 1);
release_mem_region(r->start, resource_size(r));
kfree(asic);
return 0;
}
......
......@@ -15,7 +15,6 @@
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/sysfs.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/interrupt.h>
......
......@@ -108,7 +108,7 @@ static int t7l66xb_mmc_disable(struct platform_device *mmc)
/*--------------------------------------------------------------------------*/
const static struct resource t7l66xb_mmc_resources[] = {
static const struct resource t7l66xb_mmc_resources[] = {
{
.start = 0x800,
.end = 0x9ff,
......@@ -126,7 +126,7 @@ const static struct resource t7l66xb_mmc_resources[] = {
},
};
const static struct resource t7l66xb_nand_resources[] = {
static const struct resource t7l66xb_nand_resources[] = {
{
.start = 0xc00,
.end = 0xc07,
......
......@@ -172,7 +172,7 @@ static struct resource __devinitdata tc6393xb_mmc_resources[] = {
},
};
const static struct resource tc6393xb_ohci_resources[] = {
static const struct resource tc6393xb_ohci_resources[] = {
{
.start = 0x3000,
.end = 0x31ff,
......
......@@ -182,7 +182,7 @@ static int twl4030_irq_thread(void *data)
long irq = (long)data;
struct irq_desc *desc = irq_to_desc(irq);
static unsigned i2c_errors;
const static unsigned max_i2c_errors = 100;
static const unsigned max_i2c_errors = 100;
if (!desc) {
pr_err("twl4030: Invalid IRQ: %ld\n", irq);
......
......@@ -1111,7 +1111,7 @@ int wm8350_read_auxadc(struct wm8350 *wm8350, int channel, int scale, int vref)
do {
schedule_timeout_interruptible(1);
reg = wm8350_reg_read(wm8350, WM8350_DIGITISER_CONTROL_1);
} while (--tries && (reg & WM8350_AUXADC_POLL));
} while ((reg & WM8350_AUXADC_POLL) && --tries);
if (!tries)
dev_err(wm8350->dev, "adc chn %d read timeout\n", channel);
......@@ -1238,7 +1238,7 @@ static int wm8350_create_cache(struct wm8350 *wm8350, int type, int mode)
}
wm8350->reg_cache =
kzalloc(sizeof(u16) * (WM8350_MAX_REGISTER + 1), GFP_KERNEL);
kmalloc(sizeof(u16) * (WM8350_MAX_REGISTER + 1), GFP_KERNEL);
if (wm8350->reg_cache == NULL)
return -ENOMEM;
......@@ -1246,17 +1246,20 @@ static int wm8350_create_cache(struct wm8350 *wm8350, int type, int mode)
* a PMIC so the device many not be in a virgin state and we
* can't rely on the silicon values.
*/
ret = wm8350->read_dev(wm8350, 0,
sizeof(u16) * (WM8350_MAX_REGISTER + 1),
wm8350->reg_cache);
if (ret < 0) {
dev_err(wm8350->dev,
"failed to read initial cache values\n");
goto out;
}
/* Mask out uncacheable/unreadable bits and the audio. */
for (i = 0; i < WM8350_MAX_REGISTER; i++) {
/* audio register range */
if (wm8350_reg_io_map[i].readable &&
(i < WM8350_CLOCK_CONTROL_1 || i > WM8350_AIF_TEST)) {
ret = wm8350->read_dev(wm8350, i, 2, (char *)&value);
if (ret < 0) {
dev_err(wm8350->dev,
"failed to read initial cache value\n");
goto out;
}
value = be16_to_cpu(value);
value = be16_to_cpu(wm8350->reg_cache[i]);
value &= wm8350_reg_io_map[i].readable;
value &= ~wm8350_reg_io_map[i].vol;
wm8350->reg_cache[i] = value;
......@@ -1435,7 +1438,21 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
mutex_init(&wm8350->irq_mutex);
INIT_WORK(&wm8350->irq_work, wm8350_irq_worker);
if (irq) {
ret = request_irq(irq, wm8350_irq, 0,
int flags = 0;
if (pdata && pdata->irq_high) {
flags |= IRQF_TRIGGER_HIGH;
wm8350_set_bits(wm8350, WM8350_SYSTEM_CONTROL_1,
WM8350_IRQ_POL);
} else {
flags |= IRQF_TRIGGER_LOW;
wm8350_clear_bits(wm8350, WM8350_SYSTEM_CONTROL_1,
WM8350_IRQ_POL);
}
ret = request_irq(irq, wm8350_irq, flags,
"wm8350", wm8350);
if (ret != 0) {
dev_err(wm8350->dev, "Failed to request IRQ: %d\n",
......
......@@ -16,10 +16,10 @@
#include <linux/irq.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/ds1wm.h>
#include <linux/mfd/core.h>
#include <linux/mfd/ds1wm.h>
#include <asm/io.h>
......@@ -89,10 +89,9 @@ struct ds1wm_data {
void __iomem *map;
int bus_shift; /* # of shifts to calc register offsets */
struct platform_device *pdev;
struct ds1wm_platform_data *pdata;
struct mfd_cell *cell;
int irq;
int active_high;
struct clk *clk;
int slave_present;
void *reset_complete;
void *read_complete;
......@@ -215,17 +214,17 @@ static int ds1wm_find_divisor(int gclk)
static void ds1wm_up(struct ds1wm_data *ds1wm_data)
{
int gclk, divisor;
int divisor;
struct ds1wm_driver_data *plat = ds1wm_data->cell->driver_data;
if (ds1wm_data->pdata->enable)
ds1wm_data->pdata->enable(ds1wm_data->pdev);
if (ds1wm_data->cell->enable)
ds1wm_data->cell->enable(ds1wm_data->pdev);
gclk = clk_get_rate(ds1wm_data->clk);
clk_enable(ds1wm_data->clk);
divisor = ds1wm_find_divisor(gclk);
divisor = ds1wm_find_divisor(plat->clock_rate);
if (divisor == 0) {
dev_err(&ds1wm_data->pdev->dev,
"no suitable divisor for %dHz clock\n", gclk);
"no suitable divisor for %dHz clock\n",
plat->clock_rate);
return;
}
ds1wm_write_register(ds1wm_data, DS1WM_CLKDIV, divisor);
......@@ -244,10 +243,8 @@ static void ds1wm_down(struct ds1wm_data *ds1wm_data)
ds1wm_write_register(ds1wm_data, DS1WM_INT_EN,
ds1wm_data->active_high ? DS1WM_INTEN_IAS : 0);
if (ds1wm_data->pdata->disable)
ds1wm_data->pdata->disable(ds1wm_data->pdev);
clk_disable(ds1wm_data->clk);
if (ds1wm_data->cell->disable)
ds1wm_data->cell->disable(ds1wm_data->pdev);
}
/* --------------------------------------------------------------------- */
......@@ -330,13 +327,18 @@ static struct w1_bus_master ds1wm_master = {
static int ds1wm_probe(struct platform_device *pdev)
{
struct ds1wm_data *ds1wm_data;
struct ds1wm_platform_data *plat;
struct ds1wm_driver_data *plat;
struct resource *res;
struct mfd_cell *cell;
int ret;
if (!pdev)
return -ENODEV;
cell = pdev->dev.platform_data;
if (!cell)
return -ENODEV;
ds1wm_data = kzalloc(sizeof(*ds1wm_data), GFP_KERNEL);
if (!ds1wm_data)
return -ENOMEM;
......@@ -348,15 +350,18 @@ static int ds1wm_probe(struct platform_device *pdev)
ret = -ENXIO;
goto err0;
}
ds1wm_data->map = ioremap(res->start, res->end - res->start + 1);
ds1wm_data->map = ioremap(res->start, resource_size(res));
if (!ds1wm_data->map) {
ret = -ENOMEM;
goto err0;
}
plat = pdev->dev.platform_data;
ds1wm_data->bus_shift = plat->bus_shift;
plat = cell->driver_data;
/* calculate bus shift from mem resource */
ds1wm_data->bus_shift = resource_size(res) >> 3;
ds1wm_data->pdev = pdev;
ds1wm_data->pdata = plat;
ds1wm_data->cell = cell;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
......@@ -376,26 +381,18 @@ static int ds1wm_probe(struct platform_device *pdev)
if (ret)
goto err1;
ds1wm_data->clk = clk_get(&pdev->dev, "ds1wm");
if (IS_ERR(ds1wm_data->clk)) {
ret = PTR_ERR(ds1wm_data->clk);
goto err2;
}
ds1wm_up(ds1wm_data);
ds1wm_master.data = (void *)ds1wm_data;
ret = w1_add_master_device(&ds1wm_master);
if (ret)
goto err3;
goto err2;
return 0;
err3:
ds1wm_down(ds1wm_data);
clk_put(ds1wm_data->clk);
err2:
ds1wm_down(ds1wm_data);
free_irq(ds1wm_data->irq, ds1wm_data);
err1:
iounmap(ds1wm_data->map);
......@@ -434,7 +431,6 @@ static int ds1wm_remove(struct platform_device *pdev)
w1_remove_master_device(&ds1wm_master);
ds1wm_down(ds1wm_data);
clk_put(ds1wm_data->clk);
free_irq(ds1wm_data->irq, ds1wm_data);
iounmap(ds1wm_data->map);
kfree(ds1wm_data);
......
/* platform data for the DS1WM driver */
struct ds1wm_platform_data {
int bus_shift; /* number of shifts needed to calculate the
* offset between DS1WM registers;
* e.g. on h5xxx and h2200 this is 2
* (registers aligned to 4-byte boundaries),
* while on hx4700 this is 1 */
int active_high;
void (*enable)(struct platform_device *pdev);
void (*disable)(struct platform_device *pdev);
};
/* MFD cell driver data for the DS1WM driver */
struct ds1wm_driver_data {
int active_high;
int clock_rate;
};
......@@ -48,7 +48,6 @@ struct pasic3_leds_machinfo {
struct pasic3_platform_data {
struct pasic3_leds_machinfo *led_pdata;
unsigned int bus_shift;
unsigned int clock_rate;
};
......
......@@ -640,9 +640,11 @@ struct wm8350 {
*
* @init: Function called during driver initialisation. Should be
* used by the platform to configure GPIO functions and similar.
* @irq_high: Set if WM8350 IRQ is active high.
*/
struct wm8350_platform_data {
int (*init)(struct wm8350 *wm8350);
int irq_high;
};
......
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