[PATCH v3 19/24] drm/i2c: tda998x: use global constants

Subsystems: drm drivers, drm drivers and misc gpu patches, the rest

STALE4614d

2 messages, 2 authors, 2014-01-22 · open the first message on its own page

[PATCH v3 19/24] drm/i2c: tda998x: use global constants

From: Jean-Francois Moine <hidden>
Date: 2014-01-19 19:03:13

Signed-off-by: Jean-Francois Moine <redacted>
---
 drivers/gpu/drm/i2c/tda998x_drv.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index ce832f0..324dc13 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -132,6 +132,8 @@ struct tda998x_priv {
 # define VIP_CNTRL_5_CKCASE       (1 << 0)
 # define VIP_CNTRL_5_SP_CNT(x)    (((x) & 3) << 1)
 #define REG_MUX_AP                REG(0x00, 0x26)     /* read/write */
+# define MUX_AP_SELECT_I2S	  0x64
+# define MUX_AP_SELECT_SPDIF	  0x40
 #define REG_MUX_VP_VIP_OUT        REG(0x00, 0x27)     /* read/write */
 #define REG_MAT_CONTRL            REG(0x00, 0x80)     /* write */
 # define MAT_CONTRL_MAT_SC(x)     (((x) & 3) << 0)
@@ -209,10 +211,11 @@ struct tda998x_priv {
 #define REG_I2S_FORMAT            REG(0x00, 0xfc)     /* read/write */
 # define I2S_FORMAT(x)            (((x) & 3) << 0)
 #define REG_AIP_CLKSEL            REG(0x00, 0xfd)     /* write */
-# define AIP_CLKSEL_FS(x)         (((x) & 3) << 0)
-# define AIP_CLKSEL_CLK_POL(x)    (((x) & 1) << 2)
-# define AIP_CLKSEL_AIP(x)        (((x) & 7) << 3)
-
+# define AIP_CLKSEL_AIP_SPDIF     (0 << 3)
+# define AIP_CLKSEL_AIP_I2S       (1 << 3)
+# define AIP_CLKSEL_FS_ACLK       (0 << 0)
+# define AIP_CLKSEL_FS_MCLK       (1 << 0)
+# define AIP_CLKSEL_FS_FS64SPDIF  (2 << 0)
 
 /* Page 02h: PLL settings */
 #define REG_PLL_SERIAL_1          REG(0x02, 0x00)     /* read/write */
@@ -677,20 +680,18 @@ tda998x_configure_audio(struct tda998x_priv *priv,
 	/* Set audio input source */
 	switch (priv->audio_format) {
 	case AFMT_SPDIF:
-		reg_write(priv, REG_MUX_AP, 0x40);
-		clksel_aip = AIP_CLKSEL_AIP(0);
-		/* FS64SPDIF */
-		clksel_fs = AIP_CLKSEL_FS(2);
+		reg_write(priv, REG_MUX_AP, MUX_AP_SELECT_SPDIF);
+		clksel_aip = AIP_CLKSEL_AIP_SPDIF;
+		clksel_fs = AIP_CLKSEL_FS_FS64SPDIF;
 		cts_n = CTS_N_M(3) | CTS_N_K(3);
 		aclk = 0;				/* no clock */
 		ca_i2s = 0;
 		break;
 
 	case AFMT_I2S:
-		reg_write(priv, REG_MUX_AP, 0x64);
-		clksel_aip = AIP_CLKSEL_AIP(1);
-		/* ACLK */
-		clksel_fs = AIP_CLKSEL_FS(0);
+		reg_write(priv, REG_MUX_AP, MUX_AP_SELECT_I2S);
+		clksel_aip = AIP_CLKSEL_AIP_I2S;
+		clksel_fs = AIP_CLKSEL_FS_ACLK;
 		cts_n = CTS_N_M(3) | CTS_N_K(3);
 		aclk = 1;				/* clock enable */
 		ca_i2s = CA_I2S_CA_I2S(0);
-- 
1.8.5.3

Re: [PATCH v3 19/24] drm/i2c: tda998x: use global constants

From: Russell King - ARM Linux <hidden>
Date: 2014-01-22 23:29:33

On Sun, Jan 19, 2014 at 07:58:45PM +0100, Jean-Francois Moine wrote:
Signed-off-by: Jean-Francois Moine <redacted>
Might be worth also saying "and tidy up AIP_CLKSEL" since arguably they
were already using global constants.  In any case, no one likes single
line patch descriptions.  Always try to write something more about the
patch.

I've verified this via inspection, and tested it.

Tested-by: Russell King <redacted>

-- 
FTTC broadband for 0.8mile line: 5.8Mbps down 500kbps up.  Estimation
in database were 13.1 to 19Mbit for a good line, about 7.5+ for a bad.
Estimate before purchase was "up to 13.2Mbit".
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help