On Wed 10 Nov 04:59 CST 2021, Bhupesh Sharma wrote:
> From: Thara Gopinath <thara.gopinath@xxxxxxxxxx>
>
> On certain Snapdragon processors, the crypto engine clocks are enabled by
> default by security firmware and the driver need not/ should not handle the
> clocks. Make acquiring of all the clocks optional in crypto engine driver
> so that the driver initializes properly even if no clocks are specified in
> the dt.
>
So on some Snapdragons we don't have clocks, on others failing to
specify the clock leads to hard-to-debug issues. Can we make the clk_get
calls conditional based on the compatible instead?
> Cc: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@xxxxxxxxxx>
> [Massage the commit log]
It's a good habit to prefix these messages with your name, i.e.
[Bhupesh: Massaged the commit log]
Regards,
Bjorn
> Signed-off-by: Thara Gopinath <thara.gopinath@xxxxxxxxxx>
> ---
> drivers/crypto/qce/core.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/crypto/qce/core.c b/drivers/crypto/qce/core.c
> index dd2604f5ce6a..98784d63d78c 100644
> --- a/drivers/crypto/qce/core.c
> +++ b/drivers/crypto/qce/core.c
> @@ -213,19 +213,19 @@ static int qce_crypto_probe(struct platform_device *pdev)
> if (IS_ERR(qce->mem_path))
> return PTR_ERR(qce->mem_path);
>
> - qce->core = devm_clk_get(qce->dev, "core");
> + qce->core = devm_clk_get_optional(qce->dev, "core");
> if (IS_ERR(qce->core)) {
> ret = PTR_ERR(qce->core);
> goto err;
> }
>
> - qce->iface = devm_clk_get(qce->dev, "iface");
> + qce->iface = devm_clk_get_optional(qce->dev, "iface");
> if (IS_ERR(qce->iface)) {
> ret = PTR_ERR(qce->iface);
> goto err;
> }
>
> - qce->bus = devm_clk_get(qce->dev, "bus");
> + qce->bus = devm_clk_get_optional(qce->dev, "bus");
> if (IS_ERR(qce->bus)) {
> ret = PTR_ERR(qce->bus);
> goto err;
> --
> 2.31.1
>
