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Commit f1fe90b2 authored by Siddartha Mohanadoss's avatar Siddartha Mohanadoss
Browse files

qpnp: revid: Add support to read FAB ID for PMICOBALT 



PMICOBALT supports reading the FAB ID from the REVID
peripheral. Add an optional property qcom,fab-id-valid
to check if support for FAB ID is available in the
REVID peripheral for the PMIC.

Change-Id: If8212618baa7533b008228a71740acf1d6c72a52
Signed-off-by: default avatarSiddartha Mohanadoss <smohanad@codeaurora.org>
parent 3c7400dc

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

+4 −0
Original line number Diff line number Diff line
@@ -6,6 +6,10 @@ Required properties: 
- compatible : should be "qcom,qpnp-revid"

- reg : offset and length of the PMIC peripheral register map.



Optional property:

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

	identification from REV ID peripheral is available.



Example:

	qcom,revid@100 {

		compatible = "qcom,qpnp-revid";

drivers/platform/msm/qpnp-revid.c

+8 −1
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_FAB_ID	0xf2



#define QPNP_REVID_DEV_NAME "qcom,qpnp-revid"
@@ -154,7 +155,7 @@ 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;

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

	unsigned int base;

	int rc;

	char pmic_string[PMIC_STRING_MAXLENGTH] = {'\0'};
@@ -199,6 +200,11 @@ static int qpnp_revid_probe(struct platform_device *pdev) 
			pmic_subtype = PMI8937_PERIPHERAL_SUBTYPE;

	}



	if (of_property_read_bool(pdev->dev.of_node, "qcom,fab-id-valid"))

		fab_id = qpnp_read_byte(regmap, base + REVID_FAB_ID);

	else

		fab_id = -EINVAL;



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

						GFP_KERNEL);

	if (!revid_chip)
@@ -211,6 +217,7 @@ static int qpnp_revid_probe(struct platform_device *pdev) 
	revid_chip->data.rev4 = rev4;

	revid_chip->data.pmic_subtype = pmic_subtype;

	revid_chip->data.pmic_type = pmic_type;

	revid_chip->data.fab_id = fab_id;



	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
@@ -212,6 +212,7 @@ struct pmic_revid_data { 
	u8		pmic_type;

	u8		pmic_subtype;

	const char	*pmic_name;

	int		fab_id;

};



#ifdef CONFIG_QPNP_REVID