On Mon, 2024-11-11 at 23:18 +0530, Manivannan Sadhasivam via B4 Relay
wrote:
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> From: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
>
> When the UFSHCD platform glue drivers are removed, runtime PM should
> be
> disabled using pm_runtime_disable() to balance the enablement done in
> ufshcd_pltfrm_init(). This is also reported by PM core when the glue
> driver
> is removed and inserted again:
>
> ufshcd-qcom 1d84000.ufshc: Unbalanced pm_runtime_enable!
>
> So disable runtime PM using a new helper API ufshcd_pltfrm_remove(),
> that
> also takes care of removing ufshcd. This helper should be called
> during the
> remove() stage of glue drivers.
>
> Cc: stable@xxxxxxxxxxxxxxx # 3.12
> Fixes: 62694735ca95 ("[SCSI] ufs: Add runtime PM support for UFS host
> controller driver")
> Signed-off-by: Manivannan Sadhasivam <
> manivannan.sadhasivam@xxxxxxxxxx>
> ---
> drivers/ufs/host/cdns-pltfrm.c | 4 +---
> drivers/ufs/host/tc-dwc-g210-pltfrm.c | 4 +---
> drivers/ufs/host/ufs-exynos.c | 2 +-
> drivers/ufs/host/ufs-hisi.c | 4 +---
> drivers/ufs/host/ufs-mediatek.c | 4 +---
> drivers/ufs/host/ufs-qcom.c | 2 +-
> drivers/ufs/host/ufs-renesas.c | 4 +---
> drivers/ufs/host/ufs-sprd.c | 4 +---
> drivers/ufs/host/ufshcd-pltfrm.c | 13 +++++++++++++
> drivers/ufs/host/ufshcd-pltfrm.h | 1 +
> 10 files changed, 22 insertions(+), 20 deletions(-)
>
>
Reviewed-by: Peter Wang <peter.wang@xxxxxxxxxxxx>
