Make sure we have a matching chip id high and one or the other
of the chip id low values.
Print the values if the probe fails.
Signed-off-by: Nicolas Kaiser <nikai@xxxxxxxxx>
---
Like this?
Supersedes patch "drivers/media: nuvoton: always true expression".
drivers/media/IR/nuvoton-cir.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/media/IR/nuvoton-cir.c b/drivers/media/IR/nuvoton-cir.c
index 301be53..92d32c8 100644
--- a/drivers/media/IR/nuvoton-cir.c
+++ b/drivers/media/IR/nuvoton-cir.c
@@ -249,9 +249,12 @@ static int nvt_hw_detect(struct nvt_dev *nvt)
chip_minor = nvt_cr_read(nvt, CR_CHIP_ID_LO);
nvt_dbg("%s: chip id: 0x%02x 0x%02x", chip_id, chip_major, chip_minor);
- if (chip_major != CHIP_ID_HIGH &&
- (chip_minor != CHIP_ID_LOW || chip_minor != CHIP_ID_LOW2))
+ if (chip_major != CHIP_ID_HIGH ||
+ (chip_minor != CHIP_ID_LOW && chip_minor != CHIP_ID_LOW2)) {
+ nvt_pr(KERN_ERR, "%s: chip id mismatch: 0x%02x 0x%02x",
+ chip_id, chip_major, chip_minor);
ret = -ENODEV;
+ }
nvt_efm_disable(nvt);
--
1.7.2.2
--
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