sony-laptop: store battery care limits on batteries
Some models offer the option to store the limits on the battery
(firmware?).
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 4f42e56..f045e3e 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -1916,32 +1916,33 @@
* bits 4,5: store the limit into the EC
* bits 6,7: store the limit into the battery
*/
+ cmd = 0;
- /*
- * handle 0x0115 should allow storing on battery too;
- * handle 0x0136 same as 0x0115 + health status;
- * handle 0x013f, same as 0x0136 but no storing on the battery
- *
- * Store only inside the EC for now, regardless the handle number
- */
- if (value == 0)
- /* disable limits */
- cmd = 0x0;
+ if (value > 0) {
+ if (value <= 50)
+ cmd = 0x20;
- else if (value <= 50)
- cmd = 0x21;
+ else if (value <= 80)
+ cmd = 0x10;
- else if (value <= 80)
- cmd = 0x11;
+ else if (value <= 100)
+ cmd = 0x30;
- else if (value <= 100)
- cmd = 0x31;
+ else
+ return -EINVAL;
- else
- return -EINVAL;
+ /*
+ * handle 0x0115 should allow storing on battery too;
+ * handle 0x0136 same as 0x0115 + health status;
+ * handle 0x013f, same as 0x0136 but no storing on the battery
+ */
+ if (bcare_ctl->handle != 0x013f)
+ cmd = cmd | (cmd << 2);
- if (sony_call_snc_handle(bcare_ctl->handle, (cmd << 0x10) | 0x0100,
- &result))
+ cmd = (cmd | 0x1) << 0x10;
+ }
+
+ if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
return -EIO;
return count;