Re: [PATCH v3 0/6] PCI: J7200/J721E PCIe bindings
From: Nishanth Menon <nm@ti.com>
Date: 2021-01-04 13:18:23
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On 18:40-20210104, Kishon Vijay Abraham I wrote:
Nishanth, On 04/01/21 6:29 pm, Nishanth Menon wrote:quoted
On 17:52-20210104, Kishon Vijay Abraham I wrote:quoted
Patch series adds DT nodes in order to get PCIe working in J7200. Also includes couple of fixes for J721e. v1 of the patch series can be found @ [1] v2 of the patch series can be found @ [2] Changes from v2: 1) Moved serdes_refclk node out of interconnect node and also replaced "_" with "-" Changes from v1: 1) Include only the device tree patches here (the binding patch is sent separately) 2) Include couple of patches that fixes J721E DTS. [1] -> http://lore.kernel.org/r/20201102101154.13598-1-kishon@ti.com (local) [2] -> http://lore.kernel.org/r/20201210130747.25436-1-kishon@ti.com (local) Kishon Vijay Abraham I (6): arm64: dts: ti: k3-j721e-main: Fix supported max outbound regions arm64: dts: ti: k3-j721e-main: Remove "syscon" nodes added for pcieX_ctrl arm64: dts: ti: k3-j7200-main: Add SERDES and WIZ device tree node arm64: dts: ti: k3-j7200-main: Add PCIe device tree node arm64: dts: ti: k3-j7200-common-proc-board: Enable SERDES0 arm64: dts: ti: k3-j7200-common-proc-board: Enable PCIe .../dts/ti/k3-j7200-common-proc-board.dts | 38 ++++++ arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 111 ++++++++++++++++++ arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 52 ++------ 3 files changed, 157 insertions(+), 44 deletions(-)A bit confused on the dependency here. is there something merged into next-20210104 that makes this series ready for pickup? is there a way I can get a immutable tag for driver fixups to pull so that my dts next is not broken for PCIe (I am assuming looking at the series that this is probably not a backward compatible series?)?There are no driver changes for the basic J7200 PCIe support and the DT bindings are already merged [1]. There are few errata fixes applicable for J721E which has to be removed for J7200 but that depends on other patches to be merged [1] but that doesn't impact j7200 functionality. [1] -> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml#n19 [2] -> http://lore.kernel.org/r/20201230120515.2348-1-nadeem@cadence.com (local)
So, Dropping stuff like "cdns,max-outbound-regions" (change from 16 to 32) will work on older kernels? Could you do a quick sanity check on the couple of "fixes" patches in this thread is not breaking functionality introduced in the older stable kernels? -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel