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| author | Haojie Li <lihaojie@kylinos.cn> | 2026-08-25 18:08:45 +0800 |
|---|---|---|
| committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2026-09-28 23:20:55 +0000 |
| commit | bce7698e2e6565bb765bd0522337f29f5f312624 (patch) | |
| tree | 0b735b7b4a27369cb4d75d9431b3ee59ce7e5bcc /drivers/misc/cardreader/rts5260.h | |
| download | linux-stable-bce7698e2e6565bb765bd0522337f29f5f312624.tar.gz linux-stable-bce7698e2e6565bb765bd0522337f29f5f312624.zip | |
drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform devicegrafted
platform_device_register_data() can fail and return an ERR_PTR, but the
return value is used without checking, leading to an invalid pointer
being stored in ddp_comp[].dev and passed to component_match_add() and
mtk_ddp_comp_init(), which could result in a kernel crash.
Add an IS_ERR() check to jump to the error handling path on failure.
Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195")
Cc: stable@vger.kernel.org
Signed-off-by: Haojie Li <lihaojie@kylinos.cn>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20260825100845.438893-1-lihaojie@kylinos.cn/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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 |