diff mbox series

[thermal:,thermal/next] thermal/drivers/int340x: processor_thermal: Export additional attributes

Message ID 162426880917.395.18441265814054814985.tip-bot2@tip-bot2
State New
Headers show
Series [thermal:,thermal/next] thermal/drivers/int340x: processor_thermal: Export additional attributes | expand

Commit Message

thermal-bot for Lad Prabhakar June 21, 2021, 9:46 a.m. UTC 
The following commit has been merged into the thermal/next branch of thermal:

Commit-ID:     5d6fbc96bd36cfec7bbc0578ad3986affdeb70de
Gitweb:        https://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux.git//5d6fbc96bd36cfec7bbc0578ad3986affdeb70de
Author:        Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
AuthorDate:    Sun, 16 May 2021 23:14:41 -07:00
Committer:     Daniel Lezcano <daniel.lezcano@linaro.org>
CommitterDate: Fri, 11 Jun 2021 11:55:47 +02:00

thermal/drivers/int340x: processor_thermal: Export additional attributes

Export additional attributes:

ddr_data_rate (RO) : Show current DDR (Double Data Rate) data rate.
rfi_restriction (RW) : Show or set current state for RFI (Radio
			Frequency Interference) protection.

These attributes use mailbox commands to get/set information. Here
command codes are:
0x0007: Read RFI restriction
0x0107: Read DDR data rate
0x0008: Write RFI restriction

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210517061441.1921901-3-srinivas.pandruvada@linux.intel.com
---
 drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c | 55 +++++++-
 1 file changed, 55 insertions(+)
diff mbox series

Patch

diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c
index aef993a..2b8a323 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c
@@ -190,6 +190,59 @@  static DEVICE_ATTR_RO(ddr_data_rate_point_2);
 static DEVICE_ATTR_RO(ddr_data_rate_point_3);
 static DEVICE_ATTR_RW(rfi_disable);
 
+static ssize_t rfi_restriction_store(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	u16 cmd_id = 0x0008;
+	u32 cmd_resp;
+	u32 input;
+	int ret;
+
+	ret = kstrtou32(buf, 10, &input);
+	if (ret)
+		return ret;
+
+	ret = processor_thermal_send_mbox_cmd(to_pci_dev(dev), cmd_id, input, &cmd_resp);
+	if (ret)
+		return ret;
+
+	return count;
+}
+
+static ssize_t rfi_restriction_show(struct device *dev,
+				    struct device_attribute *attr,
+				    char *buf)
+{
+	u16 cmd_id = 0x0007;
+	u32 cmd_resp;
+	int ret;
+
+	ret = processor_thermal_send_mbox_cmd(to_pci_dev(dev), cmd_id, 0, &cmd_resp);
+	if (ret)
+		return ret;
+
+	return sprintf(buf, "%u\n", cmd_resp);
+}
+
+static ssize_t ddr_data_rate_show(struct device *dev,
+				  struct device_attribute *attr,
+				  char *buf)
+{
+	u16 cmd_id = 0x0107;
+	u32 cmd_resp;
+	int ret;
+
+	ret = processor_thermal_send_mbox_cmd(to_pci_dev(dev), cmd_id, 0, &cmd_resp);
+	if (ret)
+		return ret;
+
+	return sprintf(buf, "%u\n", cmd_resp);
+}
+
+static DEVICE_ATTR_RW(rfi_restriction);
+static DEVICE_ATTR_RO(ddr_data_rate);
+
 static struct attribute *dvfs_attrs[] = {
 	&dev_attr_rfi_restriction_run_busy.attr,
 	&dev_attr_rfi_restriction_err_code.attr,
@@ -199,6 +252,8 @@  static struct attribute *dvfs_attrs[] = {
 	&dev_attr_ddr_data_rate_point_2.attr,
 	&dev_attr_ddr_data_rate_point_3.attr,
 	&dev_attr_rfi_disable.attr,
+	&dev_attr_ddr_data_rate.attr,
+	&dev_attr_rfi_restriction.attr,
 	NULL
 };