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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-01-31 14:50:23 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-03-30 19:42:04 +0100 |
| commit | 351e1354fcd06e96245f8fda141ac3cc2f68f763 (patch) | |
| tree | 9a0c57df2ef548735fa138d5b43eac579d3bc044 /drivers/gpu/drm | |
| parent | c517d838eb7d07bbe9507871fab3931deccff539 (diff) | |
| download | linux-351e1354fcd06e96245f8fda141ac3cc2f68f763.tar.gz linux-351e1354fcd06e96245f8fda141ac3cc2f68f763.tar.xz | |
drm: bridge/dw_hdmi: combine hdmi_set_clock_regenerator_n() and hdmi_regenerate_cts()
Combine these two functions into a single implementation. These two
functions are called consecutively anyway. Idea from a patch by
Yakir Yang.
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/bridge/dw_hdmi.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c index cd6a70647e32..78363552d80e 100644 --- a/drivers/gpu/drm/bridge/dw_hdmi.c +++ b/drivers/gpu/drm/bridge/dw_hdmi.c @@ -177,19 +177,16 @@ static void hdmi_mask_writeb(struct dw_hdmi *hdmi, u8 data, unsigned int reg, hdmi_modb(hdmi, data << shift, mask, reg); } -static void hdmi_set_clock_regenerator_n(struct dw_hdmi *hdmi, - unsigned int value) +static void hdmi_set_cts_n(struct dw_hdmi *hdmi, unsigned int cts, + unsigned int n) { - hdmi_writeb(hdmi, value & 0xff, HDMI_AUD_N1); - hdmi_writeb(hdmi, (value >> 8) & 0xff, HDMI_AUD_N2); - hdmi_writeb(hdmi, (value >> 16) & 0x0f, HDMI_AUD_N3); + hdmi_writeb(hdmi, n & 0xff, HDMI_AUD_N1); + hdmi_writeb(hdmi, (n >> 8) & 0xff, HDMI_AUD_N2); + hdmi_writeb(hdmi, (n >> 16) & 0x0f, HDMI_AUD_N3); /* nshift factor = 0 */ hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_N_SHIFT_MASK, HDMI_AUD_CTS3); -} -static void hdmi_regenerate_cts(struct dw_hdmi *hdmi, unsigned int cts) -{ /* Must be set/cleared first */ hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3); @@ -355,8 +352,7 @@ static void hdmi_set_clk_regenerator(struct dw_hdmi *hdmi, __func__, hdmi->sample_rate, hdmi->ratio, pixel_clk, clk_n, clk_cts); - hdmi_set_clock_regenerator_n(hdmi, clk_n); - hdmi_regenerate_cts(hdmi, clk_cts); + hdmi_set_cts_n(hdmi, clk_cts, clk_n); } static void hdmi_init_clk_regenerator(struct dw_hdmi *hdmi) |