drm/mgag200: Clear <page> field during MM init

The modesetting code initialized the memory-related register CRTCEXT4.
Move this code to MM initialization.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200730102844.10995-7-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/mgag200/mgag200_mm.c b/drivers/gpu/drm/mgag200/mgag200_mm.c
index 1b19188..641f1aa 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_mm.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mm.c
@@ -94,6 +94,8 @@ int mgag200_mm_init(struct mga_device *mdev)
        resource_size_t start, len;
        int ret;
 
+       WREG_ECRT(0x04, 0x00);
+
        misc = RREG8(MGA_MISC_IN);
        misc |= MGAREG_MISC_RAMMAPEN |
                MGAREG_MISC_HIGH_PG_SEL;

diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index 66818ee..4fa64cf 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -946,7 +946,7 @@ static void mgag200_set_dac_regs(struct mga_device *mdev)
 
 static void mgag200_init_regs(struct mga_device *mdev)
 {
-       u8 crtc11, crtcext4, misc;
+       u8 crtc11, misc;
 
        mgag200_set_dac_regs(mdev);
 
@@ -961,10 +961,6 @@ static void mgag200_init_regs(struct mga_device *mdev)
        WREG_CRT(14, 0);
        WREG_CRT(15, 0);
 
-       crtcext4 = 0x00;
-
-       WREG_ECRT(0x04, crtcext4);
-
        RREG_CRT(0x11, crtc11);
        crtc11 &= ~(MGAREG_CRTC11_CRTCPROTECT |
                    MGAREG_CRTC11_VINTEN |