6.12-stable review patch. If anyone has any objections, please let me know.
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From: Jerome Brunet jbrunet@baylibre.com
[ Upstream commit b584ab12d59f646b9254b2b16ff197d612fd4935 ]
On rcar-gen4, the ep BAR4 has a fixed size of 256B. Document this constraint in the epc features of the platform.
Fixes: e311b3834dfa ("PCI: rcar-gen4: Add endpoint mode support") Signed-off-by: Jerome Brunet jbrunet@baylibre.com Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org Reviewed-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org Link: https://patch.msgid.link/20250328-rcar-gen4-bar4-v1-1-10bb6ce9ee7f@baylibre.... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/controller/dwc/pcie-rcar-gen4.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/pci/controller/dwc/pcie-rcar-gen4.c b/drivers/pci/controller/dwc/pcie-rcar-gen4.c index 3a5511c3f7d97..5d77a01648606 100644 --- a/drivers/pci/controller/dwc/pcie-rcar-gen4.c +++ b/drivers/pci/controller/dwc/pcie-rcar-gen4.c @@ -403,6 +403,7 @@ static const struct pci_epc_features rcar_gen4_pcie_epc_features = { .msix_capable = false, .bar[BAR_1] = { .type = BAR_RESERVED, }, .bar[BAR_3] = { .type = BAR_RESERVED, }, + .bar[BAR_4] = { .type = BAR_FIXED, .fixed_size = 256 }, .bar[BAR_5] = { .type = BAR_RESERVED, }, .align = SZ_1M, };