Re: [PATCH] PCI: tegra: Move "dbi" accesses to post common DWC initialization

From: Thierry Reding
Date: Thu Nov 26 2020 - 06:30:13 EST


On Thu, Nov 26, 2020 at 12:52:34AM +0530, Vidya Sagar wrote:
> commit a0fd361db8e5 ("PCI: dwc: Move "dbi", "dbi2", and "addr_space"
> resource setup into common code") moved the code that sets up dbi_base
> to DWC common code thereby creating a requirement to not access the "dbi"
> region before calling common DWC initialization code. But, Tegra194
> already had some code that programs some of the "dbi" registers resulting
> in system crash. This patch addresses that issue by refactoring the code
> to have accesses to the "dbi" region only after common DWC initialization.
>
> Fixes: a0fd361db8e5 ("PCI: dwc: Move "dbi", "dbi2", and "addr_space" resource setup into common code")
> Signed-off-by: Vidya Sagar <vidyas@xxxxxxxxxx>
> ---
> drivers/pci/controller/dwc/pcie-tegra194.c | 19 ++++++++++---------
> 1 file changed, 10 insertions(+), 9 deletions(-)

This, together with your other patch fixes Tegra194 PCI on top of
next-20201126 for me, so:

Tested-by: Thierry Reding <treding@xxxxxxxxxx>
Acked-by: Thierry Reding <treding@xxxxxxxxxx>

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