Messages in this thread | | | Date | Tue, 25 Jul 2023 22:34:18 -0700 | From | Bjorn Andersson <> | Subject | Re: [PATCH V1 2/2] scsi: ufs: ufs-qcom: check host controller state |
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On Wed, Jul 26, 2023 at 12:57:10AM +0530, Nitin Rawat wrote: > Check host controller state before sending hibern8 command. >
Please read https://docs.kernel.org/process/submitting-patches.html#describe-your-changes
> Signed-off-by: Manish Pandey <quic_mapa@quicinc.com>
Please read https://docs.kernel.org/process/submitting-patches.html#sign-your-work-the-developer-s-certificate-of-origin
> Signed-off-by: Nitin Rawat <quic_nitirawa@quicinc.com> > --- > drivers/ufs/host/ufs-qcom.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c > index 8d6fd4c3324f..95412e98a598 100644 > --- a/drivers/ufs/host/ufs-qcom.c > +++ b/drivers/ufs/host/ufs-qcom.c > @@ -1254,6 +1254,10 @@ static int ufs_qcom_clk_scale_notify(struct ufs_hba *hba, > struct ufs_pa_layer_attr *dev_req_params = &host->dev_req_params; > int err = 0; > > + /* check the host controller state before sending hibern8 cmd */
That is exactly what the two lines does, but the comment does not provide any insight into why this is done. Keeping a comment here seems relevant, please make sure that it adds value.
Thanks, Bjorn
> + if (!ufshcd_is_hba_active(hba)) > + return 0; > + > if (status == PRE_CHANGE) { > err = ufshcd_uic_hibern8_enter(hba); > if (err) > -- > 2.17.1 >
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