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| author | Shawn Lin <shawn.lin@rock-chips.com> | 2025-12-12 09:33:25 +0800 |
|---|---|---|
| committer | Manivannan Sadhasivam <mani@kernel.org> | 2025-12-18 13:53:57 +0530 |
| commit | f994bb8f1c94726e0124356ccd31c3c23a8a69f4 (patch) | |
| tree | 1bc92da063df2ec5035784e7ba03efdf37a01a4e /tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git | |
| parent | 679ec639f29cbdaf36bd79bf3e98240fffa335ee (diff) | |
PCI: dw-rockchip: Change get_ltssm() to provide L1 Substates info
Rename rockchip_pcie_get_ltssm() to rockchip_pcie_get_ltssm_reg() and add
rockchip_pcie_get_ltssm() to get_ltssm() callback in order to show the
proper L1 Substates. The PCIE_CLIENT_LTSSM_STATUS[5:0] register returns
the same LTSSM layout as enum dw_pcie_ltssm. So the driver just need to
convey L1 PM Substates by returning the proper value defined in
pcie-designware.h.
cat /sys/kernel/debug/dwc_pcie_a40000000.pcie/ltssm_status
L1_2 (0x142)
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/1765503205-22184-2-git-send-email-shawn.lin@rock-chips.com
Diffstat (limited to 'tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions