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| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2017-03-07 15:14:48 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-03-08 07:01:13 +0100 |
| commit | b985735be7afea3a5e0570ce2ea0b662c0e12e19 (patch) | |
| tree | d95faf8072724921e672375c8d7619c283686bd3 /drivers/crypto/s5p-sss.c | |
| parent | hwrng: omap - use devm_clk_get() instead of of_clk_get() (diff) | |
| download | linux-b985735be7afea3a5e0570ce2ea0b662c0e12e19.tar.xz linux-b985735be7afea3a5e0570ce2ea0b662c0e12e19.zip | |
hwrng: omap - Do not access INTMASK_REG on EIP76
The INTMASK_REG register does not exist on EIP76. Due to this, the call:
omap_rng_write(priv, RNG_INTMASK_REG, RNG_SHUTDOWN_OFLO_MASK);
ends up, through the reg_map_eip76[] array, in accessing the register at
offset 0, which is the RNG_OUTPUT_0_REG. This by itself doesn't cause
any problem, but clearly doesn't enable the interrupt as it was
expected.
On EIP76, the register that allows to enable the interrupt is
RNG_CONTROL_REG. And just like RNG_INTMASK_REG, it's bit 1 of this
register that allows to enable the shutdown_oflo interrupt.
Fixes: 383212425c926 ("hwrng: omap - Add device variant for SafeXcel IP-76 found in Armada 8K")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/s5p-sss.c')
0 files changed, 0 insertions, 0 deletions