[PATCH 3/9] drm/tilcdc: Add I2S HDMI audio config for tda998x

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




The configuration is needed for HDMI audio. The "swap" and "mirr"
parameters have to be correctly set in the configuration in order to
have proper colors in the HDMI picture.

Signed-off-by: Jyri Sarha <jsarha@xxxxxx>
---
 drivers/gpu/drm/tilcdc/tilcdc_slave.c |   24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_slave.c b/drivers/gpu/drm/tilcdc/tilcdc_slave.c
index 595068b..e43240a 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_slave.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_slave.c
@@ -19,6 +19,7 @@
 #include <linux/pinctrl/pinmux.h>
 #include <linux/pinctrl/consumer.h>
 #include <drm/drm_encoder_slave.h>
+#include <drm/i2c/tda998x.h>
 
 #include "tilcdc_drv.h"
 
@@ -111,8 +112,29 @@ static const struct drm_encoder_helper_funcs slave_encoder_helper_funcs = {
 		.restore        = drm_i2c_encoder_restore,
 };
 
+static struct tda998x_encoder_params tda998x_pdata = {
+	.swap_b = 0x3,
+	.mirr_b = 0x0,
+	.swap_a = 0x2,
+	.mirr_a = 0x0,
+	.swap_d = 0x1,
+	.mirr_d = 0x0,
+	.swap_c = 0x0,
+	.mirr_c = 0x0,
+	.swap_f = 0x5,
+	.mirr_f = 0x0,
+	.swap_e = 0x4,
+	.mirr_e = 0x0,
+	.audio_cfg = 0x3,	/* I2S mode */
+	.audio_clk_cfg = 1,	/* select clock pin */
+	.audio_frame[1] = 1,	/* channels - 1 */
+	.audio_format = AFMT_I2S,
+	.audio_sample_rate = 48000,
+};
+
 static const struct i2c_board_info info = {
-		I2C_BOARD_INFO("tda998x", 0x70)
+		I2C_BOARD_INFO("tda998x", 0x70),
+		.platform_data = &tda998x_pdata,
 };
 
 static struct drm_encoder *slave_encoder_create(struct drm_device *dev,
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux