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Commit 379c70e3 authored by Rama Krishna Phani A's avatar Rama Krishna Phani A Committed by Harry Yang
Browse files

qpnp: revid: Add support to read TP Rev 



Some PMICs software drivers (PM660) require the TP revision
information to implement specific logic. Add an optional
property qcom,tp-rev-valid to check if support for TP REV is
available in the REVID peripheral for the PMIC.

Change-Id: Ia7a344e60bedcc6fb28d9ed9f18dc29a3d7f4fd7
Signed-off-by: default avatarRama Krishna Phani A <rphani@codeaurora.org>
parent dd913607

Documentation/devicetree/bindings/platform/msm/qpnp-revid.txt

+2 −0
Original line number Diff line number Diff line
@@ -9,6 +9,8 @@ Required properties: 
Optional property:

- qcom,fab-id-valid: Use this property when support to read Fab

	identification from REV ID peripheral is available.

- qcom,tp-rev-valid: Use this property when support to read TP

	revision identification from REV ID peripheral.



Example:

	qcom,revid@100 {

drivers/platform/msm/qpnp-revid.c

+9 −2
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
#define REVID_SUBTYPE	0x5

#define REVID_STATUS1	0x8

#define REVID_SPARE_0	0x60

#define REVID_TP_REV	0xf1

#define REVID_FAB_ID	0xf2



#define QPNP_REVID_DEV_NAME "qcom,qpnp-revid"
@@ -157,9 +158,9 @@ static size_t build_pmic_string(char *buf, size_t n, int sid, 
static int qpnp_revid_probe(struct platform_device *pdev)

{

	u8 rev1, rev2, rev3, rev4, pmic_type, pmic_subtype, pmic_status;

	u8 option1, option2, option3, option4, spare0, fab_id;

	u8 option1, option2, option3, option4, spare0;

	unsigned int base;

	int rc;

	int rc, fab_id, tp_rev;

	char pmic_string[PMIC_STRING_MAXLENGTH] = {'\0'};

	struct revid_chip *revid_chip;

	struct regmap *regmap;
@@ -207,6 +208,11 @@ static int qpnp_revid_probe(struct platform_device *pdev) 
	else

		fab_id = -EINVAL;



	if (of_property_read_bool(pdev->dev.of_node, "qcom,tp-rev-valid"))

		tp_rev = qpnp_read_byte(regmap, base + REVID_TP_REV);

	else

		tp_rev = -EINVAL;



	revid_chip = devm_kzalloc(&pdev->dev, sizeof(struct revid_chip),

						GFP_KERNEL);

	if (!revid_chip)
@@ -220,6 +226,7 @@ static int qpnp_revid_probe(struct platform_device *pdev) 
	revid_chip->data.pmic_subtype = pmic_subtype;

	revid_chip->data.pmic_type = pmic_type;

	revid_chip->data.fab_id = fab_id;

	revid_chip->data.tp_rev = tp_rev;



	if (pmic_subtype < ARRAY_SIZE(pmic_names))

		revid_chip->data.pmic_name = pmic_names[pmic_subtype];

include/linux/qpnp/qpnp-revid.h

+1 −0
Original line number Diff line number Diff line
@@ -247,6 +247,7 @@ struct pmic_revid_data { 
	u8		pmic_subtype;

	const char	*pmic_name;

	int		fab_id;

	int		tp_rev;

};



#ifdef CONFIG_QPNP_REVID