Re: [PATCH 1/3] PCI: j721e: Add PCIe 4x lane selection support

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Hi Matt,

On 10/09/22 1:46 am, Matt Ranostay wrote:
Increase LANE_COUNT_MASK to two-bit field that allows selection of
4x lane PCIe which was previously limited to 2x lane support.

Cc: Kishon Vijay Abraham I <kishon@xxxxxx>
Signed-off-by: Matt Ranostay <mranostay@xxxxxx>
Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx>
---
  drivers/pci/controller/cadence/pci-j721e.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/cadence/pci-j721e.c b/drivers/pci/controller/cadence/pci-j721e.c
index a82f845cc4b5..62c2c70256b8 100644
--- a/drivers/pci/controller/cadence/pci-j721e.c
+++ b/drivers/pci/controller/cadence/pci-j721e.c
@@ -43,7 +43,7 @@ enum link_status {
  };
#define J721E_MODE_RC BIT(7)
-#define LANE_COUNT_MASK			BIT(8)
+#define LANE_COUNT_MASK			GENMASK(9, 8)

The MASK value as well has to be specific to platforms. For J721E, it is 1 bit only.

Thanks,
Kishon

  #define LANE_COUNT(n)			((n) << 8)
#define GENERATION_SEL_MASK GENMASK(1, 0)




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