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| author | Yazen Ghannam <yazen.ghannam@amd.com> | 2026-09-03 10:43:25 -0500 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2026-09-10 18:05:43 -0700 |
| commit | 27600805e62f800bacf990354632eae4e487d34c (patch) | |
| tree | e8aec0ddfaa0bc264d79af632e3de3f1b75ae4c8 /drivers/misc/cardreader/rts5260.h | |
| download | linux-stable-27600805e62f800bacf990354632eae4e487d34c.tar.gz linux-stable-27600805e62f800bacf990354632eae4e487d34c.zip | |
x86/amd_node: Fix PCI device reference counting in amd_smn_init()grafted
The local "root" pointer is a temporary variable used during the device
search. Therefore, refcount related to the search iterators should be cleaned
up after the search is complete.
Use the __free() cleanup macro to ensure the refcount is decremented when the
temporary pointer goes out of scope.
Additionally, increment the refcount when caching a root pointer. This ensures
the in-use refcount is separate from the temporary search refcounting.
Finally, drop the redundant "root = NULL" before the second search loop. The
pci_get_class() iterator always decrements the refcount of its "from"
argument, so the first loop can only fall through with "root" already NULL.
Fixes: 0a4b61d9c2e4 ("x86/amd_node: Fix AMD root device caching")
Closes: https://sashiko.dev/#/patchset/20260806160159.230453-1-jason.andryuk%40amd.com
Reported-by: Sashiko <sashiko-bot@kernel.org>
Assisted-by: LLM
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Cc: <stable@kernel.org>
Link: https://patch.msgid.link/20260903154325.74343-1-yazen.ghannam@amd.com
Diffstat (limited to 'drivers/misc/cardreader/rts5260.h')
| -rw-r--r-- | drivers/misc/cardreader/rts5260.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/misc/cardreader/rts5260.h b/drivers/misc/cardreader/rts5260.h new file mode 100644 index 000000000..53a1411c8 --- /dev/null +++ b/drivers/misc/cardreader/rts5260.h @@ -0,0 +1,45 @@ +#ifndef __RTS5260_H__ +#define __RTS5260_H__ + +#define RTS5260_DVCC_CTRL 0xFF73 +#define RTS5260_DVCC_OCP_EN (0x01 << 7) +#define RTS5260_DVCC_OCP_THD_MASK (0x07 << 4) +#define RTS5260_DVCC_POWERON (0x01 << 3) +#define RTS5260_DVCC_OCP_CL_EN (0x01 << 2) + +#define RTS5260_DVIO_CTRL 0xFF75 +#define RTS5260_DVIO_OCP_EN (0x01 << 7) +#define RTS5260_DVIO_OCP_THD_MASK (0x07 << 4) +#define RTS5260_DVIO_POWERON (0x01 << 3) +#define RTS5260_DVIO_OCP_CL_EN (0x01 << 2) + +#define RTS5260_DV331812_CFG 0xFF71 +#define RTS5260_DV331812_OCP_EN (0x01 << 7) +#define RTS5260_DV331812_OCP_THD_MASK (0x07 << 4) +#define RTS5260_DV331812_POWERON (0x01 << 3) +#define RTS5260_DV331812_SEL (0x01 << 2) +#define RTS5260_DV331812_VDD1 (0x01 << 2) +#define RTS5260_DV331812_VDD2 (0x00 << 2) + +#define RTS5260_DV331812_OCP_THD_120 (0x00 << 4) +#define RTS5260_DV331812_OCP_THD_140 (0x01 << 4) +#define RTS5260_DV331812_OCP_THD_160 (0x02 << 4) +#define RTS5260_DV331812_OCP_THD_180 (0x03 << 4) +#define RTS5260_DV331812_OCP_THD_210 (0x04 << 4) +#define RTS5260_DV331812_OCP_THD_240 (0x05 << 4) +#define RTS5260_DV331812_OCP_THD_270 (0x06 << 4) +#define RTS5260_DV331812_OCP_THD_300 (0x07 << 4) + +#define RTS5260_DVIO_OCP_THD_250 (0x00 << 4) +#define RTS5260_DVIO_OCP_THD_300 (0x01 << 4) +#define RTS5260_DVIO_OCP_THD_350 (0x02 << 4) +#define RTS5260_DVIO_OCP_THD_400 (0x03 << 4) +#define RTS5260_DVIO_OCP_THD_450 (0x04 << 4) +#define RTS5260_DVIO_OCP_THD_500 (0x05 << 4) +#define RTS5260_DVIO_OCP_THD_550 (0x06 << 4) +#define RTS5260_DVIO_OCP_THD_600 (0x07 << 4) + +#define RTS5260_DVCC_OCP_THD_550 (0x00 << 4) +#define RTS5260_DVCC_OCP_THD_970 (0x05 << 4) + +#endif |