Implement change in logging during screen brightness capabilities
detection as suggested in
https://www.mail-archive.com/ibm-acpi-devel%40lists.sourceforge.net/msg03484.html
Signed-off-by: Ramiro Morales <cra...@gmail.com>
---
drivers/platform/x86/thinkpad_acpi.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/platform/x86/thinkpad_acpi.c
b/drivers/platform/x86/thinkpad_acpi.c
index 28f3281..b48efc9 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -6450,19 +6450,16 @@ static void __init
tpacpi_detect_brightness_capabilities(void)
switch (b) {
case 16:
bright_maxlvl = 15;
- pr_info("detected a 16-level brightness capable ThinkPad\n");
break;
case 8:
case 0:
bright_maxlvl = 7;
- pr_info("detected a 8-level brightness capable ThinkPad\n");
break;
default:
- pr_err("Unsupported brightness interface, "
- "please contact %s\n", TPACPI_MAIL);
tp_features.bright_unkfw = 1;
bright_maxlvl = b - 1;
}
+ pr_debug("firmware reports %d brightness levels\n", bright_maxlvl);
}
static int __init brightness_init(struct ibm_init_struct *iibm)
@@ -6482,6 +6479,9 @@ static int __init brightness_init(struct ibm_init_struct
*iibm)
/* if it is unknown, we don't handle it: it wouldn't be safe */
if (tp_features.bright_unkfw)
+ dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
+ "Unsupported brightness mode, use acpi video "
+ "or gpu drivers");
return 1;
if (!brightness_enable) {
--
1.9.1
------------------------------------------------------------------------------
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