[PATCH v2 03/13] intel_gna: read hardware info in the driver
From: Maciej Kwapulinski <hidden>
Date: 2021-03-24 18:39:32
Also in:
lkml
Subsystem:
char and misc drivers, the rest · Maintainers:
Arnd Bergmann, Greg Kroah-Hartman, Linus Torvalds
From: Tomasz Jankowski <redacted> Get the hardware information from register MMIO_IBUFFS Signed-off-by: Tomasz Jankowski <redacted> Tested-by: Savo Novakovic <redacted> Co-developed-by: Jianxun Zhang <redacted> Signed-off-by: Jianxun Zhang <redacted> Co-developed-by: Maciej Kwapulinski <redacted> Signed-off-by: Maciej Kwapulinski <redacted> --- drivers/misc/intel/gna/gna_device.c | 5 +++++ drivers/misc/intel/gna/gna_device.h | 5 +++++ 2 files changed, 10 insertions(+)
diff --git a/drivers/misc/intel/gna/gna_device.c b/drivers/misc/intel/gna/gna_device.c
index 431113297879..6bac481b2247 100644
--- a/drivers/misc/intel/gna/gna_device.c
+++ b/drivers/misc/intel/gna/gna_device.c@@ -12,12 +12,17 @@ static void gna_dev_init(struct gna_private *gna_priv, struct pci_dev *pcidev, const struct pci_device_id *pci_id) { + u32 bld_reg; + pci_set_drvdata(pcidev, gna_priv); gna_priv->parent = &pcidev->dev; gna_priv->pdev = pcidev; gna_priv->info = *(struct gna_drv_info *)pci_id->driver_data; gna_priv->drv_priv = &gna_drv_priv; + + bld_reg = gna_reg_read(gna_priv->bar0_base, GNA_MMIO_IBUFFS); + gna_priv->hw_info.in_buf_s = bld_reg & GENMASK(7, 0); } int gna_probe(struct pci_dev *pcidev, const struct pci_device_id *pci_id)
diff --git a/drivers/misc/intel/gna/gna_device.h b/drivers/misc/intel/gna/gna_device.h
index 39dc03d53feb..7704eeda90f6 100644
--- a/drivers/misc/intel/gna/gna_device.h
+++ b/drivers/misc/intel/gna/gna_device.h@@ -23,6 +23,10 @@ struct gna_drv_info { struct gna_desc_info desc_info; }; +struct gna_hw_info { + u8 in_buf_s; +}; + struct gna_private { struct gna_driver_private *drv_priv;
@@ -33,6 +37,7 @@ struct gna_private { /* device related resources */ void __iomem *bar0_base; struct gna_drv_info info; + struct gna_hw_info hw_info; }; int gna_probe(struct pci_dev *dev, const struct pci_device_id *id);
--
2.28.0