[PATCH v3 02/12] PCI: rockchip-ep: Use a macro to define EP controller .align feature

Damien Le Moal
2024-10-07T04:12:26Z

Introduce the macro ROCKCHIP_PCIE_AT_SIZE_ALIGN defined using
ROCKCHIP_PCIE_AT_MIN_NUM_BITS to initialize the .align field of the
controller epc_features structure, avoiding using the "magic" value 8
directly.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
---
drivers/pci/controller/pcie-rockchip-ep.c | 2 +-
drivers/pci/controller/pcie-rockchip.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index 27a7febb74e0..5a07084fb7c4 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -446,7 +446,7 @@ static const struct pci_epc_features rockchip_pcie_epc_features = {
.linkup_notifier = false,
.msi_capable = true,
.msix_capable = false,
- .align = 256,
+ .align = ROCKCHIP_PCIE_AT_SIZE_ALIGN,
};

static const struct pci_epc_features*
diff --git a/drivers/pci/controller/pcie-rockchip.h b/drivers/pci/controller/pcie-rockchip.h
index 15ee949f2485..02368ce9bd54 100644
--- a/drivers/pci/controller/pcie-rockchip.h
+++ b/drivers/pci/controller/pcie-rockchip.h
@@ -248,6 +248,7 @@

#define ROCKCHIP_PCIE_AT_MIN_NUM_BITS 8
#define ROCKCHIP_PCIE_AT_MAX_NUM_BITS 20
+#define ROCKCHIP_PCIE_AT_SIZE_ALIGN (1UL << ROCKCHIP_PCIE_AT_MIN_NUM_BITS)

#define ROCKCHIP_PCIE_AT_IB_EP_FUNC_BAR_ADDR0(fn, bar) \
(PCIE_CORE_AXI_CONF_BASE + 0x0828 + (fn) * 0x0040 + (bar) * 0x0008)
--
2.46.2