mfd: ti_am335x_tscadc: store physical address

store the physical address of the device in its priv to use it
for DMA addressing in the client drivers.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c
index c8f027b4ea4c56e4bcc3913f6b996ab3a5a81e4a..0f3fab47fe48052682fc686ee62381dd1e9c719b 100644 (file)
--- a/drivers/mfd/ti_am335x_tscadc.c
+++ b/drivers/mfd/ti_am335x_tscadc.c
@@ -183,6 +183,7 @@ static      int ti_tscadc_probe(struct platform_device *pdev)
                tscadc->irq = err;
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       tscadc->tscadc_phys_base = res->start;
        tscadc->tscadc_base = devm_ioremap_resource(&pdev->dev, res);
        if (IS_ERR(tscadc->tscadc_base))
                return PTR_ERR(tscadc->tscadc_base);

diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
index 7f55b8b410328f764bbed1949711d588406fe29c..e45a208d99447ea11bad017d473d5a853691dc46 100644 (file)
--- a/include/linux/mfd/ti_am335x_tscadc.h
+++ b/include/linux/mfd/ti_am335x_tscadc.h
@@ -155,6 +155,7 @@ struct ti_tscadc_dev {
        struct device *dev;
        struct regmap *regmap;
        void __iomem *tscadc_base;
+       phys_addr_t tscadc_phys_base;
        int irq;
        int used_cells; /* 1-2 */
        int tsc_wires;