On 2017-01-19 02:47, Bjorn Andersson 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>
---
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);
Looks good to me.
Reviewed-by: Subhash Jadavani <subhashj@xxxxxxxxxxxxxx>
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