diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2012-07-12 09:57:52 +0000 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-11-06 23:11:42 +0100 |
| commit | cd0f34b08f98af72bb2f74fe4bd251558fc734d3 (patch) | |
| tree | caee50770690b553ffbc10df5fb031fdde5e187c /drivers/mfd/mc13xxx-spi.c | |
| parent | 5e53a69b44e893227b046a7bc74db3cb40d7f39b (diff) | |
| download | linux-cd0f34b08f98af72bb2f74fe4bd251558fc734d3.tar.gz | |
mfd: mc13xxx: Change probing details for mc13xxx devices
This removes auto-detection of which variant of mc13xxx is used because mc34708 uses a different layout in the revision register that doesn't allow differentiation any more. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Marc Reilly <marc@cpdesign.com.au> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/mc13xxx-spi.c')
| -rw-r--r-- | drivers/mfd/mc13xxx-spi.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c index 0bdb43a0aff0..9b1e60827f37 100644 --- a/drivers/mfd/mc13xxx-spi.c +++ b/drivers/mfd/mc13xxx-spi.c @@ -28,10 +28,10 @@ static const struct spi_device_id mc13xxx_device_id[] = { { .name = "mc13783", - .driver_data = MC13XXX_ID_MC13783, + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13783, }, { .name = "mc13892", - .driver_data = MC13XXX_ID_MC13892, + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892, }, { /* sentinel */ } @@ -39,8 +39,8 @@ static const struct spi_device_id mc13xxx_device_id[] = { MODULE_DEVICE_TABLE(spi, mc13xxx_device_id); static const struct of_device_id mc13xxx_dt_ids[] = { - { .compatible = "fsl,mc13783", .data = (void *) MC13XXX_ID_MC13783, }, - { .compatible = "fsl,mc13892", .data = (void *) MC13XXX_ID_MC13892, }, + { .compatible = "fsl,mc13783", .data = &mc13xxx_variant_mc13783, }, + { .compatible = "fsl,mc13892", .data = &mc13xxx_variant_mc13892, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids); @@ -144,19 +144,18 @@ static int mc13xxx_spi_probe(struct spi_device *spi) return ret; } - ret = mc13xxx_common_init(mc13xxx, pdata, spi->irq); + if (spi->dev.of_node) { + const struct of_device_id *of_id = + of_match_device(mc13xxx_dt_ids, &spi->dev); - if (ret) { - dev_set_drvdata(&spi->dev, NULL); + mc13xxx->variant = of_id->data; } else { - const struct spi_device_id *devid = - spi_get_device_id(spi); - if (!devid || devid->driver_data != mc13xxx->ictype) - dev_warn(mc13xxx->dev, - "device id doesn't match auto detection!\n"); + const struct spi_device_id *id_entry = spi_get_device_id(spi); + + mc13xxx->variant = (void *)id_entry->driver_data; } - return ret; + return mc13xxx_common_init(mc13xxx, pdata, spi->irq); } static int __devexit mc13xxx_spi_remove(struct spi_device *spi) |