diff options
| author | Brian Masney <bmasney@redhat.com> | 2024-09-06 03:25:20 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2024-09-13 13:26:52 +0300 |
| commit | 3e87031a6ce68f13722155497cd511a00b56a2ae (patch) | |
| tree | fc85528ce4f5ae5784ee35349c2a12262329c638 | |
| parent | 48b8843a0b74b0c2ff6aa44b31b27158f7d26306 (diff) | |
| download | linux-3e87031a6ce68f13722155497cd511a00b56a2ae.tar.xz | |
crypto: qcom-rng - fix support for ACPI-based systems
The qcom-rng driver supports both ACPI and device tree-based systems.
ACPI support was broken when the hw_random interface support was added.
Let's go ahead and fix this by adding the appropriate driver data to the
ACPI match table, and change the of_device_get_match_data() call to
device_get_match_data() so that it will also work on ACPI-based systems.
This fix was boot tested on a Qualcomm Amberwing server (ACPI based) and
on a Qualcomm SA8775p Automotive Development Board (DT based). I also
verified that qcom-rng shows up in /proc/crypto on both systems.
Fixes: f29cd5bb64c2 ("crypto: qcom-rng - Add hw_random interface support")
Reported-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
Closes: https://lore.kernel.org/linux-arm-msm/20240828184019.GA21181@eaf/
Cc: stable@vger.kernel.org
Signed-off-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/qcom-rng.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/crypto/qcom-rng.c b/drivers/crypto/qcom-rng.c index c670d7d0c11e..6496b075a48d 100644 --- a/drivers/crypto/qcom-rng.c +++ b/drivers/crypto/qcom-rng.c @@ -196,7 +196,7 @@ static int qcom_rng_probe(struct platform_device *pdev) if (IS_ERR(rng->clk)) return PTR_ERR(rng->clk); - rng->of_data = (struct qcom_rng_of_data *)of_device_get_match_data(&pdev->dev); + rng->of_data = (struct qcom_rng_of_data *)device_get_match_data(&pdev->dev); qcom_rng_dev = rng; ret = crypto_register_rng(&qcom_rng_alg); @@ -247,7 +247,7 @@ static struct qcom_rng_of_data qcom_trng_of_data = { }; static const struct acpi_device_id __maybe_unused qcom_rng_acpi_match[] = { - { .id = "QCOM8160", .driver_data = 1 }, + { .id = "QCOM8160", .driver_data = (kernel_ulong_t)&qcom_prng_ee_of_data }, {} }; MODULE_DEVICE_TABLE(acpi, qcom_rng_acpi_match); |