linux-kernel - [PATCH] bus: mhi: host: pci_generic: Use pcim_iomap

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Message-Id: <20241004023351.6946-1-manivannan.sadhasivam@linaro.org>
Date: Fri,  4 Oct 2024 08:03:51 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: mhi@...ts.linux.dev
Cc: linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Loic Poulain <loic.poulain@...aro.org>
Subject: [PATCH] bus: mhi: host: pci_generic: Use pcim_iomap_region() to request and map MHI BAR

Use of both pcim_iomap_regions() and pcim_iomap_table() APIs are
deprecated. Hence, switch to pcim_iomap_region() API which handles both the
request and map of the MHI BAR region.

Cc: Loic Poulain <loic.poulain@...aro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---

Compile tested only.

 drivers/bus/mhi/host/pci_generic.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
index 9938bb034c1c..07645ce2119a 100644
--- a/drivers/bus/mhi/host/pci_generic.c
+++ b/drivers/bus/mhi/host/pci_generic.c
@@ -917,12 +917,12 @@ static int mhi_pci_claim(struct mhi_controller *mhi_cntrl,
 		return err;
 	}
 
-	err = pcim_iomap_regions(pdev, 1 << bar_num, pci_name(pdev));
-	if (err) {
+	mhi_cntrl->regs = pcim_iomap_region(pdev, 1 << bar_num, pci_name(pdev));
+	if (IS_ERR(mhi_cntrl->regs)) {
+		err = PTR_ERR(mhi_cntrl->regs);
 		dev_err(&pdev->dev, "failed to map pci region: %d\n", err);
 		return err;
 	}
-	mhi_cntrl->regs = pcim_iomap_table(pdev)[bar_num];
 	mhi_cntrl->reg_len = pci_resource_len(pdev, bar_num);
 
 	err = dma_set_mask_and_coherent(&pdev->dev, dma_mask);
-- 
2.25.1