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-rw-r--r--src/smi_501.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/smi_501.h b/src/smi_501.h
index d2531e0..aba3dc3 100644
--- a/src/smi_501.h
+++ b/src/smi_501.h
@@ -111,11 +111,15 @@ authorization from the XFree86 Project and Silicon Motion.
* 00101 / 32 01101 / 96 10101 / 160
* 00110 / 64 01110 / 192 10110 / 320
* 00111 / 128 01111 / 384 10111 / 640
- * 29:30 P2XCLK SELECT (Panel clock)
+ * 29:29 P2XCLK SELECT (Panel clock)
* 00: 288 MHz
* 01: 336 MHz/288 MHz/240 MHz/192 MHz
* (see bits 5:4 in the Miscellaneous Timing register
* at offset 0x68 on page 2-42).
+ * 30:30 PLL SELECT
+ * 0: Use standard p2_xxx clock
+ * 1: Use PLL_CONTROL (MMIO 0x074) for clock setting.
+ * Available only for the panel.
* 31:31 Disable 2X P2XCLK.
* 0: Normal.
* 1: 1X clock for P2CLK.