diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_i2c.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_i2c.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xe/xe_i2c.c b/drivers/gpu/drm/xe/xe_i2c.c index 48dfcb41fa08..0b5452be0c87 100644 --- a/drivers/gpu/drm/xe/xe_i2c.c +++ b/drivers/gpu/drm/xe/xe_i2c.c @@ -160,6 +160,11 @@ bool xe_i2c_present(struct xe_device *xe) return xe->i2c && xe->i2c->ep.cookie == XE_I2C_EP_COOKIE_DEVICE; } +static bool xe_i2c_irq_present(struct xe_device *xe) +{ + return xe->i2c && xe->i2c->adapter_irq; +} + /** * xe_i2c_irq_handler: Handler for I2C interrupts * @xe: xe device instance @@ -170,13 +175,33 @@ bool xe_i2c_present(struct xe_device *xe) */ void xe_i2c_irq_handler(struct xe_device *xe, u32 master_ctl) { - if (!xe->i2c || !xe->i2c->adapter_irq) + if (!xe_i2c_irq_present(xe)) return; if (master_ctl & I2C_IRQ) generic_handle_irq_safe(xe->i2c->adapter_irq); } +void xe_i2c_irq_reset(struct xe_device *xe) +{ + struct xe_mmio *mmio = xe_root_tile_mmio(xe); + + if (!xe_i2c_irq_present(xe)) + return; + + xe_mmio_rmw32(mmio, I2C_BRIDGE_PCICFGCTL, ACPI_INTR_EN, 0); +} + +void xe_i2c_irq_postinstall(struct xe_device *xe) +{ + struct xe_mmio *mmio = xe_root_tile_mmio(xe); + + if (!xe_i2c_irq_present(xe)) + return; + + xe_mmio_rmw32(mmio, I2C_BRIDGE_PCICFGCTL, 0, ACPI_INTR_EN); +} + static int xe_i2c_irq_map(struct irq_domain *h, unsigned int virq, irq_hw_number_t hw_irq_num) { @@ -334,6 +359,7 @@ int xe_i2c_probe(struct xe_device *xe) if (ret) goto err_remove_irq; + xe_i2c_irq_postinstall(xe); return devm_add_action_or_reset(drm_dev, xe_i2c_remove, i2c); err_remove_irq: |