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Subject[PATCH v2 26/28] drm/i2c: tda998x: code optimization
This patch reduces the number of I2C exchanges by setting many bits in
one write and removing a useless write.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
---
drivers/gpu/drm/i2c/tda998x_drv.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index 6b4f6d2..d3b3f3a 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -751,10 +751,10 @@ tda998x_configure_audio(struct tda998x_priv *priv,
}

reg_write(priv, REG_AIP_CLKSEL, clksel_aip);
- reg_clear(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_LAYOUT);
+ reg_clear(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_LAYOUT |

/* Enable automatic CTS generation */
- reg_clear(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_ACR_MAN);
+ AIP_CNTRL_0_ACR_MAN);
reg_write(priv, REG_CTS_N, cts_n);

/*
@@ -1001,10 +1001,10 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
reg_write(priv, REG_VIP_CNTRL_5, VIP_CNTRL_5_SP_CNT(0));
reg_write(priv, REG_VIP_CNTRL_4, VIP_CNTRL_4_BLANKIT(0) |
VIP_CNTRL_4_BLC(0));
- reg_clear(priv, REG_PLL_SERIAL_3, PLL_SERIAL_3_SRL_CCIR);

reg_clear(priv, REG_PLL_SERIAL_1, PLL_SERIAL_1_SRL_MAN_IZ);
- reg_clear(priv, REG_PLL_SERIAL_3, PLL_SERIAL_3_SRL_DE);
+ reg_clear(priv, REG_PLL_SERIAL_3, PLL_SERIAL_3_SRL_CCIR |
+ PLL_SERIAL_3_SRL_DE);
reg_write(priv, REG_SERIALIZER, 0);

/* video quantization range = 0: full, 1: RGB/YUV, 2: YUV */
@@ -1026,8 +1026,6 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
/* set BIAS tmds value: */
reg_write(priv, REG_ANA_GENERAL, 0x09);

- reg_write(priv, REG_TBG_CNTRL_0, 0);
-
/*
* Sync on rising HSYNC/VSYNC
*/
--
Ken ar c'hentañ | ** Breizh ha Linux atav! **
Jef | http://moinejf.free.fr/
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