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authorChen-Yu Tsai <wens@csie.org>2017-04-25 23:25:04 +0800
committerMaxime Ripard <maxime.ripard@free-electrons.com>2017-05-14 08:31:58 +0200
commit86cf6788a661b8cb459f259e373c5daf09221abe (patch)
tree51f077d2af690b223e1a9d04d05697ec2a659570 /drivers/gpu/drm/sun4i/sun4i_tcon.c
parentd281c862de30381c144145a75ec1f0d5efc307ae (diff)
downloadop-kernel-dev-86cf6788a661b8cb459f259e373c5daf09221abe.zip
op-kernel-dev-86cf6788a661b8cb459f259e373c5daf09221abe.tar.gz
drm/sun4i: Set TCON clock inside sun4i_tconX_mode_set
Currently we are configuring the TCON's dot clock or special clock directly from the encoder mode_set functions. Since we already provide mode_set helper functions for the TCON's 2 channels, we can set the respective clock from those helpers, and reduce the exposure of the TCON's internals. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_tcon.c')
-rw-r--r--drivers/gpu/drm/sun4i/sun4i_tcon.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index 5d7866f..8b6aaa6 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -130,6 +130,9 @@ void sun4i_tcon0_mode_set(struct sun4i_tcon *tcon,
u8 clk_delay;
u32 val = 0;
+ /* Configure the dot clock */
+ clk_set_rate(tcon->dclk, mode->crtc_clock * 1000);
+
/* Adjust clock delay */
clk_delay = sun4i_tcon_get_clk_delay(mode, 0);
regmap_update_bits(tcon->regs, SUN4I_TCON0_CTL_REG,
@@ -205,6 +208,9 @@ void sun4i_tcon1_mode_set(struct sun4i_tcon *tcon,
WARN_ON(!tcon->quirks->has_channel_1);
+ /* Configure the dot clock */
+ clk_set_rate(tcon->sclk1, mode->crtc_clock * 1000);
+
/* Adjust clock delay */
clk_delay = sun4i_tcon_get_clk_delay(mode, 1);
regmap_update_bits(tcon->regs, SUN4I_TCON1_CTL_REG,
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