[PATCH 3/6] viafb: remove superfluous register unlocking/locking

From: Florian Tobias Schandinat
Date: Fri Aug 05 2011 - 17:46:21 EST


The locking is done within the viafb_set_*_timing functions so there
is no need to do it here. Move a missing hardware reset into the
modesetting function.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@xxxxxx>
---
drivers/video/via/hw.c | 7 -------
drivers/video/via/via_modesetting.c | 4 ++++
2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c
index 52d41f0..8b4bdf5 100644
--- a/drivers/video/via/hw.c
+++ b/drivers/video/via/hw.c
@@ -1507,18 +1507,11 @@ void viafb_fill_crtc_timing(struct crt_mode_table *crt_table,
crt_reg.ver_sync_end += crt_reg.ver_sync_start;
h_addr = crt_reg.hor_addr;
v_addr = crt_reg.ver_addr;
- if (set_iga == IGA1) {
- viafb_unlock_crt();
- viafb_write_reg_mask(CR17, VIACR, 0x00, BIT7);
- }
-
if (set_iga == IGA1)
via_set_primary_timing(&crt_reg);
else if (set_iga == IGA2)
via_set_secondary_timing(&crt_reg);

- viafb_lock_crt();
- viafb_write_reg_mask(CR17, VIACR, 0x80, BIT7);
viafb_load_fetch_count_reg(h_addr, bpp_byte, set_iga);

/* load FIFO */
diff --git a/drivers/video/via/via_modesetting.c b/drivers/video/via/via_modesetting.c
index 016d457..0e431ae 100644
--- a/drivers/video/via/via_modesetting.c
+++ b/drivers/video/via/via_modesetting.c
@@ -82,6 +82,10 @@ void via_set_primary_timing(const struct display_timing *timing)

/* lock timing registers */
via_write_reg_mask(VIACR, 0x11, 0x80, 0x80);
+
+ /* reset timing control */
+ via_write_reg_mask(VIACR, 0x17, 0x00, 0x80);
+ via_write_reg_mask(VIACR, 0x17, 0x80, 0x80);
}

void via_set_secondary_timing(const struct display_timing *timing)
--
1.6.3.2

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