diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-ocores.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-ocores.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c index f5fc75b65a19..273222e38056 100644 --- a/drivers/i2c/busses/i2c-ocores.c +++ b/drivers/i2c/busses/i2c-ocores.c @@ -83,7 +83,6 @@ struct ocores_i2c { #define TYPE_OCORES 0 #define TYPE_GRLIB 1 -#define TYPE_SIFIVE_REV0 2 #define OCORES_FLAG_BROKEN_IRQ BIT(1) /* Broken IRQ for FU540-C000 SoC */ @@ -476,11 +475,9 @@ static const struct of_device_id ocores_i2c_match[] = { }, { .compatible = "sifive,fu540-c000-i2c", - .data = (void *)TYPE_SIFIVE_REV0, }, { .compatible = "sifive,i2c0", - .data = (void *)TYPE_SIFIVE_REV0, }, {}, }; @@ -606,7 +603,6 @@ static int ocores_i2c_probe(struct platform_device *pdev) { struct ocores_i2c *i2c; struct ocores_i2c_platform_data *pdata; - const struct of_device_id *match; struct resource *res; int irq; int ret; @@ -686,17 +682,20 @@ static int ocores_i2c_probe(struct platform_device *pdev) init_waitqueue_head(&i2c->wait); - irq = platform_get_irq(pdev, 0); + irq = platform_get_irq_optional(pdev, 0); + /* + * Since the SoC does have an interrupt, its DT has an interrupt + * property - But this should be bypassed as the IRQ logic in this + * SoC is broken. + */ + if (of_device_is_compatible(pdev->dev.of_node, + "sifive,fu540-c000-i2c")) { + i2c->flags |= OCORES_FLAG_BROKEN_IRQ; + irq = -ENXIO; + } + if (irq == -ENXIO) { ocores_algorithm.master_xfer = ocores_xfer_polling; - - /* - * Set in OCORES_FLAG_BROKEN_IRQ to enable workaround for - * FU540-C000 SoC in polling mode. - */ - match = of_match_node(ocores_i2c_match, pdev->dev.of_node); - if (match && (long)match->data == TYPE_SIFIVE_REV0) - i2c->flags |= OCORES_FLAG_BROKEN_IRQ; } else { if (irq < 0) return irq; |