crypto: qat - fix firmware loading failure for GEN6 devices

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QAT GEN6 hardware requires a minimum 3 us delay during the acceleration
engine reset sequence to ensure the hardware fully settles.
Without this delay, the firmware load may fail intermittently.

Add a delay after placing the AE into reset and before clearing the reset,
matching the hardware requirements and ensuring stable firmware loading.
Earlier generations remain unaffected.

Fixes: 17fd7514ae ("crypto: qat - add qat_6xxx driver")
Signed-off-by: Suman Kumar Chakraborty <suman.kumar.chakraborty@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Suman Kumar Chakraborty 2026-03-05 08:58:59 +00:00 • committed by Herbert Xu

parent 4963b39e3a

commit e7dcb722bb

3 changed files with 12 additions and 1 deletions

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7

drivers/crypto/intel/qat/qat_common/adf_accel_engine.c

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1

drivers/crypto/intel/qat/qat_common/icp_qat_fw_loader_handle.h

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5

drivers/crypto/intel/qat/qat_common/qat_hal.c

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