Parse memory map register from device tree.
Signed-off-by: Sourav Poddar <[email protected]>
---
drivers/spi/spi-ti-qspi.c | 14 +++++++++++++-
1 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index 776e93d..39aefd7 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -47,6 +47,7 @@ struct ti_qspi {
struct spi_master *master;
void __iomem *base;
void __iomem *ctrl_base;
+ void __iomem *mmap_base;
struct clk *fclk;
struct device *dev;
@@ -440,7 +441,7 @@ static int ti_qspi_probe(struct platform_device *pdev)
{
struct ti_qspi *qspi;
struct spi_master *master;
- struct resource *r, *res_ctrl;
+ struct resource *r, *res_ctrl, *res_mmap;
struct device_node *np = pdev->dev.of_node;
u32 max_freq;
int ret = 0, num_cs, irq;
@@ -477,6 +478,9 @@ static int ti_qspi_probe(struct platform_device *pdev)
res_ctrl = platform_get_resource_byname(pdev,
IORESOURCE_MEM, "qspi_ctrlmod");
+ res_mmap = platform_get_resource_byname(pdev,
+ IORESOURCE_MEM, "qspi_mmap");
+
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "no irq resource?\n");
@@ -500,6 +504,14 @@ static int ti_qspi_probe(struct platform_device *pdev)
}
}
+ if (res_mmap) {
+ qspi->mmap_base = devm_ioremap_resource(&pdev->dev, res_mmap);
+ if (IS_ERR(qspi->mmap_base)) {
+ ret = PTR_ERR(qspi->mmap_base);
+ goto free_master;
+ }
+ }
+
ret = devm_request_irq(&pdev->dev, irq, ti_qspi_isr, 0,
dev_name(&pdev->dev), qspi);
if (ret < 0) {
--
1.7.1
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