Staging/iio/adc/touchscreen/MXS: distinguish i.MX23's and i.MX28's LRADC

The LRADC units in i.MX23 and i.MX28 differ and we need to distinguish both
SoC variants in order to make the touchscreen work on i.MX23

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Fabio Estevam <fabio.estevam@freescale.com>
CC: Jonathan Cameron <jic23@cam.ac.uk>

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 93b25ca433cb1eee3966ddefee575c436e8e9847..1a1219b822332d3722e1f3009f7dd0e9539d4d58 100644 (file)
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -177,6 +177,8 @@ struct mxs_lradc {
 
        struct input_dev        *ts_input;
        struct work_struct      ts_work;
+
+       enum mxs_lradc_id       soc;
 };
 
 #define        LRADC_CTRL0                             0x00
@@ -917,6 +919,7 @@ static int mxs_lradc_probe(struct platform_device *pdev)
        }
 
        lradc = iio_priv(iio);
+       lradc->soc = (enum mxs_lradc_id)of_id->data;
 
        /* Grab the memory area */
        iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);