input: TSC: ti_tsc: Convert TSC into a MFDevice

This patch converts touchscreen into a MFD client.
All the register definitions, clock initialization,
etc has been moved to MFD core driver.

Signed-off-by: Patil, Rachna <rachna@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c
index 14df67bc390f..d812be4b61df 100644
--- a/drivers/mfd/ti_am335x_tscadc.c
+++ b/drivers/mfd/ti_am335x_tscadc.c
@@ -24,6 +24,7 @@
 #include <linux/pm_runtime.h>
 
 #include <linux/mfd/ti_am335x_tscadc.h>
+#include <linux/input/ti_am335x_tsc.h>
 
 static unsigned int tscadc_readl(struct ti_tscadc_dev *tsadc, unsigned int reg)
 {
@@ -62,15 +63,19 @@ static	int __devinit ti_tscadc_probe(struct platform_device *pdev)
         struct resource         *res;
         struct clk              *clk;
         struct mfd_tscadc_board *pdata = pdev->dev.platform_data;
+        struct mfd_cell         *cell;
         int                     irq;
         int                     err, ctrl;
         int                     clk_value, clock_rate;
+        int                     tsc_wires;
 
         if (!pdata) {
                 dev_err(&pdev->dev, "Could not find platform data\n");
                 return -EINVAL;
         }
 
+        tsc_wires = pdata->tsc_init->wires;
+
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!res) {
                 dev_err(&pdev->dev, "no memory resource defined.\n");
@@ -161,6 +166,12 @@ static	int __devinit ti_tscadc_probe(struct platform_device *pdev)
         ctrl |= CNTRLREG_TSCSSENB;
         tscadc_writel(tscadc, REG_CTRL, ctrl);
 
+        /* TSC Cell */
+        cell = &tscadc->cells[TSC_CELL];
+        cell->name = "tsc";
+        cell->platform_data = tscadc;
+        cell->pdata_size = sizeof(*tscadc);
+
         err = mfd_add_devices(&pdev->dev, pdev->id, tscadc->cells,
                         TSCADC_CELLS, NULL, 0, NULL);
         if (err < 0)