[PATCH 09/19] PCI: rockchip-ep: use macro to define EP controller .align feature

From: Damien Le Moal <dlemoal@kernel.org>
To: "Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
	"Kishon Vijay Abraham I" <kishon@kernel.org>,
	"Shawn Lin" <shawn.lin@rock-chips.com>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Heiko Stuebner" <heiko@sntech.de>,
	linux-pci@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Subject: [PATCH 09/19] PCI: rockchip-ep: use macro to define EP controller .align feature
Date: Fri, 29 Mar 2024 18:09:35 +0900	[thread overview]
Message-ID: <20240329090945.1097609-10-dlemoal@kernel.org> (raw)
In-Reply-To: <20240329090945.1097609-1-dlemoal@kernel.org>

Introduce the macro ROCKCHIP_PCIE_AT_SIZE_ALIGN using
ROCKCHIP_PCIE_AT_MIN_NUM_BITS to define 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 786efd918b3f..f8c26606df58 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -448,7 +448,7 @@ 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)
-- 
2.44.0

