Module Name: src
Committed By: bouyer
Date: Fri Nov 20 18:32:13 UTC 2015
Modified Files:
src/sys/arch/arm/allwinner: awin_tcon.c
Log Message:
Turn off more bits when turning off the display. Saves about 50ma on the
5V supply.
To generate a diff of this commit:
cvs rdiff -u -r1.10 -r1.11 src/sys/arch/arm/allwinner/awin_tcon.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/allwinner/awin_tcon.c
diff -u src/sys/arch/arm/allwinner/awin_tcon.c:1.10 src/sys/arch/arm/allwinner/awin_tcon.c:1.11
--- src/sys/arch/arm/allwinner/awin_tcon.c:1.10 Thu Nov 19 18:48:22 2015
+++ src/sys/arch/arm/allwinner/awin_tcon.c Fri Nov 20 18:32:13 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: awin_tcon.c,v 1.10 2015/11/19 18:48:22 bouyer Exp $ */
+/* $NetBSD: awin_tcon.c,v 1.11 2015/11/20 18:32:13 bouyer Exp $ */
/*-
* Copyright (c) 2014 Jared D. McNeill <jmcne...@invisible.ca>
@@ -29,7 +29,7 @@
#include "opt_allwinner.h"
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: awin_tcon.c,v 1.10 2015/11/19 18:48:22 bouyer Exp $");
+__KERNEL_RCSID(0, "$NetBSD: awin_tcon.c,v 1.11 2015/11/20 18:32:13 bouyer Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -555,13 +555,29 @@ awin_tcon0_enable(struct awin_tcon_softc
awin_debe_enable(device_unit(sc->sc_dev), enable);
delay(20000);
- val = TCON_READ(sc, AWIN_TCON_GCTL_REG);
if (enable) {
+ val = TCON_READ(sc, AWIN_TCON_GCTL_REG);
val |= AWIN_TCON_GCTL_EN;
+ TCON_WRITE(sc, AWIN_TCON_GCTL_REG, val);
+ val = TCON_READ(sc, AWIN_TCON0_CTL_REG);
+ val |= AWIN_TCONx_CTL_EN;
+ TCON_WRITE(sc, AWIN_TCON0_CTL_REG, val);
+ val = TCON_READ(sc, AWIN_TCON0_LVDS_IF_REG);
+ val |= AWIN_TCON0_LVDS_IF_EN;
+ TCON_WRITE(sc, AWIN_TCON0_LVDS_IF_REG, val);
+ TCON_WRITE(sc, AWIN_TCON0_IO_TRI_REG, 0);
} else {
+ TCON_WRITE(sc, AWIN_TCON0_IO_TRI_REG, 0xffffffff);
+ val = TCON_READ(sc, AWIN_TCON0_LVDS_IF_REG);
+ val &= ~AWIN_TCON0_LVDS_IF_EN;
+ TCON_WRITE(sc, AWIN_TCON0_LVDS_IF_REG, val);
+ val = TCON_READ(sc, AWIN_TCON0_CTL_REG);
+ val &= ~AWIN_TCONx_CTL_EN;
+ TCON_WRITE(sc, AWIN_TCON0_CTL_REG, val);
+ val = TCON_READ(sc, AWIN_TCON_GCTL_REG);
val &= ~AWIN_TCON_GCTL_EN;
+ TCON_WRITE(sc, AWIN_TCON_GCTL_REG, val);
}
- TCON_WRITE(sc, AWIN_TCON_GCTL_REG, val);
}
void
@@ -581,15 +597,23 @@ awin_tcon1_enable(int unit, bool enable)
awin_debe_enable(device_unit(sc->sc_dev), enable);
delay(20000);
- val = TCON_READ(sc, AWIN_TCON_GCTL_REG);
if (enable) {
+ val = TCON_READ(sc, AWIN_TCON_GCTL_REG);
val |= AWIN_TCON_GCTL_EN;
+ TCON_WRITE(sc, AWIN_TCON_GCTL_REG, val);
+ val = TCON_READ(sc, AWIN_TCON1_CTL_REG);
+ val |= AWIN_TCONx_CTL_EN;
+ TCON_WRITE(sc, AWIN_TCON1_CTL_REG, val);
+ TCON_WRITE(sc, AWIN_TCON1_IO_TRI_REG, 0);
} else {
+ TCON_WRITE(sc, AWIN_TCON1_IO_TRI_REG, 0xffffffff);
+ val = TCON_READ(sc, AWIN_TCON1_CTL_REG);
+ val &= ~AWIN_TCONx_CTL_EN;
+ TCON_WRITE(sc, AWIN_TCON1_CTL_REG, val);
+ val = TCON_READ(sc, AWIN_TCON_GCTL_REG);
val &= ~AWIN_TCON_GCTL_EN;
+ TCON_WRITE(sc, AWIN_TCON_GCTL_REG, val);
}
- TCON_WRITE(sc, AWIN_TCON_GCTL_REG, val);
-
- TCON_WRITE(sc, AWIN_TCON1_IO_TRI_REG, 0);
KASSERT(tcon_mux_inited);
val = bus_space_read_4(sc->sc_bst, tcon_mux_bsh, 0);
