bus: mhi: pci_generic: Set register access length for MHI driver

MHI driver requires register space length to add range checks and
prevent memory region accesses outside of that for MMIO space.
Set it from the PCI generic controller driver before registering
the MHI controller.

Link: https://lore.kernel.org/r/1620330705-40192-6-git-send-email-bbhatt@codeaurora.org
Reviewed-by: Hemant Kumar <hemantk@codeaurora.org>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210802051255.5771-8-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This commit is contained in:

Bhaumik Bhatt

2021-08-02 10:42:52 +05:30

committed by

Greg Kroah-Hartman

parent c92513b881

commit 3551a30b9d

1 changed files with 1 additions and 0 deletions

									
										drivers/bus/mhi/pci_generic.c
									
		+1
		
												View File
												
				@@ -524,6 +524,7 @@ static int mhi_pci_claim(struct mhi_controller *mhi_cntrl,

						return err;

					}

					mhi_cntrl->regs = pcim_iomap_table(pdev)[bar_num];

					mhi_cntrl->reg_len = pci_resource_len(pdev, bar_num);

					err = pci_set_dma_mask(pdev, dma_mask);

					if (err) {