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authorTony Lindgren <tony@atomide.com>2012-09-18 01:26:10 +0200
committerTony Lindgren <tony@atomide.com>2012-09-18 01:26:10 +0200
commitdefa6be1c8216ed2d52d65db81a8a148e73be5f7 (patch)
treef5ad75944664af2095cd8685fb97d8d796a7eb10 /drivers
parentARM: OMAP1: Move SoC specific headers from plat to mach for omap1 (diff)
downloadlinux-defa6be1c8216ed2d52d65db81a8a148e73be5f7.tar.xz
linux-defa6be1c8216ed2d52d65db81a8a148e73be5f7.zip
mfd: Fix compile for twl-core.c by removing cpu_is_omap usage
Commit 7d7e1eba (ARM: OMAP2+: Prepare for irqs.h removal) broke compile for non-omap as include plat/cpu.h was added. This header was indirectly included earlier when SPARSE_IRQ was not set, but does not exist on most platforms. Fix the problem by removing the cpu_is_omap usage that should not exist in drivers at all. We can do this by adding proper clock aliases for the twl-core.c drivers, and drop separate handling for cases when clock framework is not available as the behaviour will stay the same. Note that we need to add a platform device to avoid using the i2c provided names that may be different on various omaps. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Paul Walmsley <paul@pwsan.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Olof Johansson <olof@lixom.net> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mfd/twl-core.c56
1 files changed, 30 insertions, 26 deletions
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index f462ff226c8d..9d3a0bc1a65f 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -46,8 +46,6 @@
#include <linux/i2c.h>
#include <linux/i2c/twl.h>
-#include <plat/cpu.h>
-
#include "twl-core.h"
/*
@@ -1134,12 +1132,7 @@ static void clocks_init(struct device *dev,
u32 rate;
u8 ctrl = HFCLK_FREQ_26_MHZ;
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
- if (cpu_is_omap2430())
- osc = clk_get(dev, "osc_ck");
- else
- osc = clk_get(dev, "osc_sys_ck");
-
+ osc = clk_get(dev, "fck");
if (IS_ERR(osc)) {
printk(KERN_WARNING "Skipping twl internal clock init and "
"using bootloader value (unknown osc rate)\n");
@@ -1149,18 +1142,6 @@ static void clocks_init(struct device *dev,
rate = clk_get_rate(osc);
clk_put(osc);
-#else
- /* REVISIT for non-OMAP systems, pass the clock rate from
- * board init code, using platform_data.
- */
- osc = ERR_PTR(-EIO);
-
- printk(KERN_WARNING "Skipping twl internal clock init and "
- "using bootloader value (unknown osc rate)\n");
-
- return;
-#endif
-
switch (rate) {
case 19200000:
ctrl = HFCLK_FREQ_19p2_MHZ;
@@ -1222,10 +1203,23 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct twl4030_platform_data *pdata = client->dev.platform_data;
struct device_node *node = client->dev.of_node;
+ struct platform_device *pdev;
int irq_base = 0;
int status;
unsigned i, num_slaves;
+ pdev = platform_device_alloc(DRIVER_NAME, -1);
+ if (!pdev) {
+ dev_err(&client->dev, "can't alloc pdev\n");
+ return -ENOMEM;
+ }
+
+ status = platform_device_add(pdev);
+ if (status) {
+ platform_device_put(pdev);
+ return status;
+ }
+
if (node && !pdata) {
/*
* XXX: Temporary pdata until the information is correctly
@@ -1234,23 +1228,30 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
pdata = devm_kzalloc(&client->dev,
sizeof(struct twl4030_platform_data),
GFP_KERNEL);
- if (!pdata)
- return -ENOMEM;
+ if (!pdata) {
+ status = -ENOMEM;
+ goto free;
+ }
}
if (!pdata) {
dev_dbg(&client->dev, "no platform data?\n");
- return -EINVAL;
+ status = -EINVAL;
+ goto free;
}
+ platform_set_drvdata(pdev, pdata);
+
if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
dev_dbg(&client->dev, "can't talk I2C?\n");
- return -EIO;
+ status = -EIO;
+ goto free;
}
if (inuse) {
dev_dbg(&client->dev, "driver is already in use\n");
- return -EBUSY;
+ status = -EBUSY;
+ goto free;
}
if ((id->driver_data) & TWL6030_CLASS) {
@@ -1285,7 +1286,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
inuse = true;
/* setup clock framework */
- clocks_init(&client->dev, pdata->clock);
+ clocks_init(&pdev->dev, pdata->clock);
/* read TWL IDCODE Register */
if (twl_id == TWL4030_CLASS_ID) {
@@ -1335,6 +1336,9 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
fail:
if (status < 0)
twl_remove(client);
+free:
+ if (status < 0)
+ platform_device_unregister(pdev);
return status;
}