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path: root/drivers/spi/spi-lantiq-ssc.c
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Diffstat (limited to 'drivers/spi/spi-lantiq-ssc.c')
-rw-r--r--drivers/spi/spi-lantiq-ssc.c64
1 files changed, 39 insertions, 25 deletions
diff --git a/drivers/spi/spi-lantiq-ssc.c b/drivers/spi/spi-lantiq-ssc.c
index 6d7d21262cd1..ab20825c6a6c 100644
--- a/drivers/spi/spi-lantiq-ssc.c
+++ b/drivers/spi/spi-lantiq-ssc.c
@@ -149,7 +149,10 @@
#define LTQ_SPI_IRNEN_T_XRX BIT(0) /* Receive end interrupt request */
#define LTQ_SPI_IRNEN_ALL 0x1F
+struct lantiq_ssc_spi;
+
struct lantiq_ssc_hwcfg {
+ int (*cfg_irq)(struct platform_device *pdev, struct lantiq_ssc_spi *spi);
unsigned int irnen_r;
unsigned int irnen_t;
unsigned int irncr;
@@ -799,7 +802,40 @@ static int lantiq_ssc_transfer_one(struct spi_master *master,
return transfer_start(spi, spidev, t);
}
+static int lantiq_cfg_irq(struct platform_device *pdev, struct lantiq_ssc_spi *spi)
+{
+ int irq, err;
+
+ irq = platform_get_irq_byname(pdev, LTQ_SPI_RX_IRQ_NAME);
+ if (irq < 0)
+ return irq;
+
+ err = devm_request_irq(&pdev->dev, irq, lantiq_ssc_xmit_interrupt,
+ 0, LTQ_SPI_RX_IRQ_NAME, spi);
+ if (err)
+ return err;
+
+ irq = platform_get_irq_byname(pdev, LTQ_SPI_TX_IRQ_NAME);
+ if (irq < 0)
+ return irq;
+
+ err = devm_request_irq(&pdev->dev, irq, lantiq_ssc_xmit_interrupt,
+ 0, LTQ_SPI_TX_IRQ_NAME, spi);
+
+ if (err)
+ return err;
+
+ irq = platform_get_irq_byname(pdev, LTQ_SPI_ERR_IRQ_NAME);
+ if (irq < 0)
+ return irq;
+
+ err = devm_request_irq(&pdev->dev, irq, lantiq_ssc_err_interrupt,
+ 0, LTQ_SPI_ERR_IRQ_NAME, spi);
+ return err;
+}
+
static const struct lantiq_ssc_hwcfg lantiq_ssc_xway = {
+ .cfg_irq = lantiq_cfg_irq,
.irnen_r = LTQ_SPI_IRNEN_R_XWAY,
.irnen_t = LTQ_SPI_IRNEN_T_XWAY,
.irnicr = 0xF8,
@@ -809,6 +845,7 @@ static const struct lantiq_ssc_hwcfg lantiq_ssc_xway = {
};
static const struct lantiq_ssc_hwcfg lantiq_ssc_xrx = {
+ .cfg_irq = lantiq_cfg_irq,
.irnen_r = LTQ_SPI_IRNEN_R_XRX,
.irnen_t = LTQ_SPI_IRNEN_T_XRX,
.irnicr = 0xF8,
@@ -832,9 +869,9 @@ static int lantiq_ssc_probe(struct platform_device *pdev)
struct lantiq_ssc_spi *spi;
const struct lantiq_ssc_hwcfg *hwcfg;
const struct of_device_id *match;
- int err, rx_irq, tx_irq, err_irq;
u32 id, supports_dma, revision;
unsigned int num_cs;
+ int err;
match = of_match_device(lantiq_ssc_match, dev);
if (!match) {
@@ -843,18 +880,6 @@ static int lantiq_ssc_probe(struct platform_device *pdev)
}
hwcfg = match->data;
- rx_irq = platform_get_irq_byname(pdev, LTQ_SPI_RX_IRQ_NAME);
- if (rx_irq < 0)
- return -ENXIO;
-
- tx_irq = platform_get_irq_byname(pdev, LTQ_SPI_TX_IRQ_NAME);
- if (tx_irq < 0)
- return -ENXIO;
-
- err_irq = platform_get_irq_byname(pdev, LTQ_SPI_ERR_IRQ_NAME);
- if (err_irq < 0)
- return -ENXIO;
-
master = spi_alloc_master(dev, sizeof(struct lantiq_ssc_spi));
if (!master)
return -ENOMEM;
@@ -870,18 +895,7 @@ static int lantiq_ssc_probe(struct platform_device *pdev)
goto err_master_put;
}
- err = devm_request_irq(dev, rx_irq, lantiq_ssc_xmit_interrupt,
- 0, LTQ_SPI_RX_IRQ_NAME, spi);
- if (err)
- goto err_master_put;
-
- err = devm_request_irq(dev, tx_irq, lantiq_ssc_xmit_interrupt,
- 0, LTQ_SPI_TX_IRQ_NAME, spi);
- if (err)
- goto err_master_put;
-
- err = devm_request_irq(dev, err_irq, lantiq_ssc_err_interrupt,
- 0, LTQ_SPI_ERR_IRQ_NAME, spi);
+ err = hwcfg->cfg_irq(pdev, spi);
if (err)
goto err_master_put;