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drm: bridge: add DesignWare HDMI I2S audio support

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Current dw-hdmi is supporting sound via AHB bus, but it has
I2S audio feature too. This patch adds I2S audio support to dw-hdmi.
This HDMI I2S is supported by using ALSA SoC common HDMI encoder
driver.

Tested-by: Jose Abreu <joabreu@synopsys.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/8737j2bxba.wl%kuninori.morimoto.gx@renesas.com
This commit is contained in:
Kuninori Morimoto
2016-11-08 01:00:57 +00:00
committed by Archit Taneja
parent 2db86dfcef
commit 2761ba6c09
6 changed files with 197 additions and 2 deletions
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20
drivers/gpu/drm/bridge/dw-hdmi.h
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@@ -545,6 +545,9 @@
#define HDMI_I2CM_FS_SCL_LCNT_0_ADDR 0x7E12
enum {
/* CONFIG0_ID field values */
HDMI_CONFIG0_I2S = 0x10,
/* CONFIG1_ID field values */
HDMI_CONFIG1_AHB = 0x01,
@@ -891,6 +894,17 @@ enum {
HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_POL = 0x08,
HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_MASK = 0x04,
/* AUD_CONF0 field values */
HDMI_AUD_CONF0_SW_RESET = 0x80,
HDMI_AUD_CONF0_I2S_ALL_ENABLE = 0x2F,
/* AUD_CONF1 field values */
HDMI_AUD_CONF1_MODE_I2S = 0x00,
HDMI_AUD_CONF1_MODE_RIGHT_J = 0x02,
HDMI_AUD_CONF1_MODE_LEFT_J = 0x04,
HDMI_AUD_CONF1_WIDTH_16 = 0x10,
HDMI_AUD_CONF1_WIDTH_24 = 0x18,
/* AUD_CTS3 field values */
HDMI_AUD_CTS3_N_SHIFT_OFFSET = 5,
HDMI_AUD_CTS3_N_SHIFT_MASK = 0xe0,
@@ -905,6 +919,12 @@ enum {
HDMI_AUD_CTS3_CTS_MANUAL = 0x10,
HDMI_AUD_CTS3_AUDCTS19_16_MASK = 0x0f,
/* HDMI_AUD_INPUTCLKFS field values */
HDMI_AUD_INPUTCLKFS_128FS = 0,
HDMI_AUD_INPUTCLKFS_256FS = 1,
HDMI_AUD_INPUTCLKFS_512FS = 2,
HDMI_AUD_INPUTCLKFS_64FS = 4,
/* AHB_DMA_CONF0 field values */
HDMI_AHB_DMA_CONF0_SW_FIFO_RST_OFFSET = 7,
HDMI_AHB_DMA_CONF0_SW_FIFO_RST_MASK = 0x80,