Messages in this thread Patch in this message | | | From | Ricardo Ribalda Delgado <> | Subject | [PATCH 1/5] input/cma3000_d0x: Support devices without pdata | Date | Tue, 18 Oct 2011 10:28:02 +0200 |
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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@gmail.com> --- 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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