[PATCH] spmi: pmic-arb: Enforce the ownership check optionally
From: Kiran Gunda <hidden>
Date: 2017-08-18 11:55:16
Also in:
linux-arm-msm, lkml
Subsystem:
arm/qualcomm mailing list, open firmware and flattened device tree bindings, spmi subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Stephen Boyd, Linus Torvalds
The peripheral ownership check is not necessary on single master platforms. Hence, enforce the peripheral ownership check optioanlly. Signed-off-by: Kiran Gunda <redacted> --- This patch depends on the below patch series. Please take this patch along with this series. [PATCH V2 00/12]: spmi: pmic-arb: Support for HW v5 and other fixes Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt | 6 ++++++ drivers/spmi/spmi-pmic-arb.c | 7 ++++++- 2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt
index e16b9b5..da708e8 100644
--- a/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt
+++ b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt@@ -42,6 +42,10 @@ Required properties: cell 4: interrupt flags indicating level-sense information, as defined in dt-bindings/interrupt-controller/irq.h +Optional properties: +- qcom,enforce-ownership : A boolean property. If defined the peripheral + ownership check is enforced. Otherwise the ownership + check is ignored. Example: spmi {
@@ -62,4 +66,6 @@ Example: interrupt-controller; #interrupt-cells = <4>; + + qcom,enforce-ownership; };
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index ca9bdd3..354c949 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c@@ -167,6 +167,7 @@ struct spmi_pmic_arb { u16 *ppid_to_apid; u16 last_apid; struct apid_data apid_data[PMIC_ARB_MAX_PERIPHS]; + bool enforce_ownership; }; /**
@@ -707,7 +708,8 @@ static int qpnpint_irq_domain_dt_translate(struct irq_domain *d, } apid = rc; - if (pmic_arb->apid_data[apid].irq_ee != pmic_arb->ee) { + if (pmic_arb->enforce_ownership && + pmic_arb->apid_data[apid].irq_ee != pmic_arb->ee) { dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n", intspec[0], intspec[1], intspec[2], pmic_arb->ee, pmic_arb->apid_data[apid].irq_ee);
@@ -1236,6 +1238,9 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev) } pmic_arb->ee = ee; + pmic_arb->enforce_ownership = + of_property_read_bool(pdev->dev.of_node, "qcom,enforce-ownership"); + mapping_table = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PERIPHS, sizeof(*mapping_table), GFP_KERNEL); if (!mapping_table) {
--
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