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authorArthur Heymans <arthur@aheymans.xyz>2018-11-28 16:57:15 +0100
committerPatrick Georgi <pgeorgi@google.com>2018-12-11 08:58:13 +0000
commit4cdb2b9b75fe2cf722b0409652a0d660b58fecfd (patch)
treea7068b16a29bb2accd2ca6ce66b2794ffd8b4382
parentb81dcc6c4d046392835002fcf6f1661437d0f31c (diff)
downloadcoreboot-4cdb2b9b75fe2cf722b0409652a0d660b58fecfd.tar.xz
mb/intel/x200: Add data.vbt
There are 2 vendor BIOS's for the Lenovo X200 with the difference being the settings in the VBT blob to accommodate different backlight frequencies. Linux however sticks with the setting set by the firmware. Tested on Lenovo X200 with CCFL backlight. Change-Id: I4c4a7011ce03cdd511fa2e2160c2f006ba2707ba Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/29904 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
-rw-r--r--src/mainboard/lenovo/x200/Makefile.inc9
-rw-r--r--src/mainboard/lenovo/x200/blc.c21
-rw-r--r--src/mainboard/lenovo/x200/data_ccfl.vbtbin0 -> 3854 bytes
-rw-r--r--src/mainboard/lenovo/x200/data_led.vbtbin0 -> 3863 bytes
4 files changed, 30 insertions, 0 deletions
diff --git a/src/mainboard/lenovo/x200/Makefile.inc b/src/mainboard/lenovo/x200/Makefile.inc
index c10bc70e67..5e9832dcce 100644
--- a/src/mainboard/lenovo/x200/Makefile.inc
+++ b/src/mainboard/lenovo/x200/Makefile.inc
@@ -19,3 +19,12 @@ ramstage-y += blc.c
romstage-y += gpio.c
ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads
+
+add_vbt_to_cbfs= \
+ $(eval cbfs-files-y += $1) \
+ $(eval $1-file := $2) \
+ $(eval $1-type := raw) \
+ $(eval $1-compression := lzma)
+
+$(call add_vbt_to_cbfs, data_ccfl.vbt, data_ccfl.vbt)
+$(call add_vbt_to_cbfs, data_led.vbt, data_led.vbt)
diff --git a/src/mainboard/lenovo/x200/blc.c b/src/mainboard/lenovo/x200/blc.c
index 3f8aadb637..6c5779a0b2 100644
--- a/src/mainboard/lenovo/x200/blc.c
+++ b/src/mainboard/lenovo/x200/blc.c
@@ -15,7 +15,9 @@
#include <stdint.h>
#include <commonlib/helpers.h>
+#include <console/console.h>
#include <northbridge/intel/gm45/gm45.h>
+#include <drivers/intel/gma/opregion.h>
static const struct blc_pwm_t blc_entries[] = {
/* corrected to 320MHz CDClk, vendor set 753; works fine at both: */
@@ -43,3 +45,22 @@ int get_blc_values(const struct blc_pwm_t **entries)
*entries = blc_entries;
return ARRAY_SIZE(blc_entries);
}
+
+const char *mainboard_vbt_filename(void)
+{
+ u16 pwm_freq;
+
+ pwm_freq = get_blc_pwm_freq_value(NULL);
+
+ if (pwm_freq == 0) {
+ printk(BIOS_DEBUG,
+ "GMA: Display backlight type not found, assuming LED\n");
+ return "data_led.vbt";
+ } else if (pwm_freq > 200) {
+ printk(BIOS_DEBUG, "GMA: Using LED backlight VBT\n");
+ return "data_led.vbt";
+ } else {
+ printk(BIOS_DEBUG, "GMA: Using CCFL backlight VBT\n");
+ return "data_ccfl.vbt";
+ }
+}
diff --git a/src/mainboard/lenovo/x200/data_ccfl.vbt b/src/mainboard/lenovo/x200/data_ccfl.vbt
new file mode 100644
index 0000000000..dc044c90e3
--- /dev/null
+++ b/src/mainboard/lenovo/x200/data_ccfl.vbt
Binary files differ
diff --git a/src/mainboard/lenovo/x200/data_led.vbt b/src/mainboard/lenovo/x200/data_led.vbt
new file mode 100644
index 0000000000..bcd6c300c1
--- /dev/null
+++ b/src/mainboard/lenovo/x200/data_led.vbt
Binary files differ