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Commit 20c4ae1f authored by Matt Wagantall's avatar Matt Wagantall
Browse files

soc: qcom: expose serial_number field via sysfs 



socinfo format v0.10 introduced a serial number field, which is
presently only printed at boot, and not made visible via sysfs.
Make it readable from sysfs also.

Change-Id: I523c6cb8829c0dfee31b35913e085cf3996ef21a
Signed-off-by: default avatarMatt Wagantall <mattw@codeaurora.org>
parent 9788fead

drivers/soc/qcom/socinfo.c

+23 −0
Original line number Diff line number Diff line
@@ -635,6 +635,14 @@ static uint32_t socinfo_get_foundry_id(void) 
		: 0;

}



static uint32_t socinfo_get_serial_number(void)

{

	return socinfo ?

		(socinfo->v0_1.format >= SOCINFO_VERSION(0, 10) ?

			socinfo->v0_10.serial_number : 0)

		: 0;

}



enum pmic_model socinfo_get_pmic_model(void)

{

	return socinfo ?
@@ -773,6 +781,15 @@ msm_get_foundry_id(struct device *dev, 
		socinfo_get_foundry_id());

}



static ssize_t

msm_get_serial_number(struct device *dev,

			struct device_attribute *attr,

			char *buf)

{

	return snprintf(buf, PAGE_SIZE, "%u\n",

		socinfo_get_serial_number());

}



static ssize_t

msm_get_pmic_model(struct device *dev,

			struct device_attribute *attr,
@@ -972,6 +989,10 @@ static struct device_attribute msm_soc_attr_foundry_id = 
	__ATTR(foundry_id, S_IRUGO,

			msm_get_foundry_id, NULL);



static struct device_attribute msm_soc_attr_serial_number =

	__ATTR(serial_number, S_IRUGO,

			msm_get_serial_number, NULL);



static struct device_attribute msm_soc_attr_pmic_model =

	__ATTR(pmic_model, S_IRUGO,

			msm_get_pmic_model, NULL);
@@ -1069,6 +1090,8 @@ static void __init populate_soc_sysfs_files(struct device *msm_soc_device) 


	switch (legacy_format) {

	case SOCINFO_VERSION(0, 10):

		 device_create_file(msm_soc_device,

					&msm_soc_attr_serial_number);

	case SOCINFO_VERSION(0, 9):

		 device_create_file(msm_soc_device,

					&msm_soc_attr_foundry_id);