On Thu, Jan 19, 2017 at 4:17 PM, Bjorn Andersson
<bjorn.andersson@xxxxxxxxxx> wrote:
> The fact that a regulator is always-on is a property of the regulator,
> not a specific consumer. Implementing this in the driver leads to a
> system behaviour that is dependent on if the Qualcomm UFS PHY was ever
> (partially) probed.
>
> If the specific regulator should be always on in a particular device,
> mark it so by specifying "regulator-always-on" in the regulator node.
>
> Cc: Subhash Jadavani <subhashj@xxxxxxxxxxxxxx>
> Cc: Vivek Gautam <vivek.gautam@xxxxxxxxxxxxxx>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> ---
Looks good.
Reviewed-by: Vivek Gautam <vivek.gautam@xxxxxxxxxxxxxx>
Regards
Vivek
> Documentation/devicetree/bindings/ufs/ufs-qcom.txt | 1 -
> drivers/phy/phy-qcom-ufs-i.h | 1 -
> drivers/phy/phy-qcom-ufs.c | 5 +----
> 3 files changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/ufs/ufs-qcom.txt b/Documentation/devicetree/bindings/ufs/ufs-qcom.txt
> index b6b5130e5f65..1f69ee1a61ea 100644
> --- a/Documentation/devicetree/bindings/ufs/ufs-qcom.txt
> +++ b/Documentation/devicetree/bindings/ufs/ufs-qcom.txt
> @@ -29,7 +29,6 @@ Optional properties:
> - vdda-pll-max-microamp : specifies max. load that can be drawn from pll supply
> - vddp-ref-clk-supply : phandle to UFS device ref_clk pad power supply
> - vddp-ref-clk-max-microamp : specifies max. load that can be drawn from this supply
> -- vddp-ref-clk-always-on : specifies if this supply needs to be kept always on
>
> Example:
>
> diff --git a/drivers/phy/phy-qcom-ufs-i.h b/drivers/phy/phy-qcom-ufs-i.h
> index d505d98cf5f8..13b02b7de30b 100644
> --- a/drivers/phy/phy-qcom-ufs-i.h
> +++ b/drivers/phy/phy-qcom-ufs-i.h
> @@ -77,7 +77,6 @@ struct ufs_qcom_phy_vreg {
> int min_uV;
> int max_uV;
> bool enabled;
> - bool is_always_on;
> };
>
> struct ufs_qcom_phy {
> diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c
> index bbd317158084..c145fa6e824c 100644
> --- a/drivers/phy/phy-qcom-ufs.c
> +++ b/drivers/phy/phy-qcom-ufs.c
> @@ -242,9 +242,6 @@ static int ufs_qcom_phy_init_vreg(struct device *dev,
> }
> err = 0;
> }
> - snprintf(prop_name, MAX_PROP_NAME, "%s-always-on", name);
> - vreg->is_always_on = of_property_read_bool(dev->of_node,
> - prop_name);
> }
>
> if (!strcmp(name, "vdda-pll")) {
> @@ -402,7 +399,7 @@ static int ufs_qcom_phy_disable_vreg(struct device *dev,
> {
> int ret = 0;
>
> - if (!vreg || !vreg->enabled || vreg->is_always_on)
> + if (!vreg || !vreg->enabled)
> goto out;
>
> ret = regulator_disable(vreg->reg);
> --
> 2.11.0
>
> --
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