Architechtures based on device-tree does not have platform data
associated to the spi/i2c devices.
This patch allows those architechtures to use the cma3000 driver with
a default configuration.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx>
---
drivers/input/misc/cma3000_d0x.c | 21 +++++++++++++++++++--
1 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/drivers/input/misc/cma3000_d0x.c b/drivers/input/misc/cma3000_d0x.c
index 1633b63..2f993d5 100644
--- a/drivers/input/misc/cma3000_d0x.c
+++ b/drivers/input/misc/cma3000_d0x.c
@@ -62,6 +62,18 @@
#define BIT_TO_2G 18
#define BIT_TO_8G 71
+static struct cma3000_platform_data cma3000_default_pdata = {
+ .mdthr = 0x8,
+ .mdfftmr = 0x33,
+ .ffthr = 0x8,
+ .mode = CMAMODE_MEAS400,
+ .g_range = CMARANGE_2G,
+ .fuzz_x = BIT_TO_2G,
+ .fuzz_y = BIT_TO_2G,
+ .fuzz_z = BIT_TO_2G,
+ .irqflags = 0,
+};
+
struct cma3000_accl_data {
const struct cma3000_bus_ops *bus_ops;
const struct cma3000_platform_data *pdata;
@@ -283,19 +295,24 @@ EXPORT_SYMBOL(cma3000_resume);
struct cma3000_accl_data *cma3000_init(struct device *dev, int irq,
const struct cma3000_bus_ops *bops)
{
- const struct cma3000_platform_data *pdata = dev->platform_data;
+ const struct cma3000_platform_data *pdata;
struct cma3000_accl_data *data;
struct input_dev *input_dev;
int rev;
int error;
+ if (!dev->platform_data) {
+ dev_info(dev, "platform data not found, using default\n");
+ pdata = &cma3000_default_pdata;
+ } else
+ pdata = dev->platform_data;
+
if (!pdata) {
dev_err(dev, "platform data not found\n");
error = -EINVAL;
goto err_out;
}
-
/* if no IRQ return error */
if (irq == 0) {
error = -EINVAL;
--
1.7.7
--
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