* ASoC: Mediatek: Add support for MT8173 SOC
@ 2015-04-10 7:10 Koro Chen
2015-04-10 7:10 ` [PATCH RFC 1/2] ASoC: mediatek: Add binding support for AFE driver Koro Chen
0 siblings, 1 reply; 2+ messages in thread
From: Koro Chen @ 2015-04-10 7:10 UTC (permalink / raw)
To: robh+dt, matthias.bgg, broonie, perex, tiwai
Cc: devicetree, koro.chen, srv_heupstream, s.hauer, lgirdwood,
linux-kernel, linux-mediatek, galak, alsa-devel,
linux-arm-kernel
This adds basic support for the Mediatek AFE unit for MT8173 SoC.
This patch is based on Linux 4.0-rc1, Sascha's clk patch [1],
and his SCPSYS power patch [2].
The AFE unit comprises several memory interfaces that communicate with CPU,
a multi input multi output digital audio interconnect, and several external
interfaces (e.g. I2S).
The AFE unit is a DMA master, so no external DMA engine is needed.
Each external interface is presented as a DAI to ASoC. A memory interface
must be connected via the interconnect to an external interface.
The connection pathes are configured through the device tree.
[1] http://lists.infradead.org/pipermail/linux-mediatek/2015-March/000079.html
[2] http://lists.infradead.org/pipermail/linux-mediatek/2015-March/000132.html
Koro Chen (2):
ASoC: mediatek: Add binding support for AFE driver
ASoC: mediatek: Add AFE platform driver
.../devicetree/bindings/sound/mtk-afe-pcm.txt | 105 ++
include/dt-bindings/sound/mtk-afe.h | 36 +
sound/soc/Kconfig | 1 +
sound/soc/Makefile | 1 +
sound/soc/mediatek/Kconfig | 8 +
sound/soc/mediatek/Makefile | 2 +
sound/soc/mediatek/mtk-afe-common.h | 105 ++
sound/soc/mediatek/mtk-afe-connection.c | 416 ++++++
sound/soc/mediatek/mtk-afe-connection.h | 30 +
sound/soc/mediatek/mtk-afe-pcm.c | 1497 ++++++++++++++++++++
10 files changed, 2201 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/mtk-afe-pcm.txt
create mode 100644 include/dt-bindings/sound/mtk-afe.h
create mode 100644 sound/soc/mediatek/Kconfig
create mode 100644 sound/soc/mediatek/Makefile
create mode 100644 sound/soc/mediatek/mtk-afe-common.h
create mode 100644 sound/soc/mediatek/mtk-afe-connection.c
create mode 100644 sound/soc/mediatek/mtk-afe-connection.h
create mode 100644 sound/soc/mediatek/mtk-afe-pcm.c
--
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH RFC 1/2] ASoC: mediatek: Add binding support for AFE driver
2015-04-10 7:10 ASoC: Mediatek: Add support for MT8173 SOC Koro Chen
@ 2015-04-10 7:10 ` Koro Chen
0 siblings, 0 replies; 2+ messages in thread
From: Koro Chen @ 2015-04-10 7:10 UTC (permalink / raw)
To: robh+dt, matthias.bgg, broonie, perex, tiwai
Cc: devicetree, koro.chen, srv_heupstream, s.hauer, lgirdwood,
linux-kernel, linux-mediatek, galak, alsa-devel,
linux-arm-kernel
Add documentation and header file to support binding of Mediatek's AFE driver
Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
.../devicetree/bindings/sound/mtk-afe-pcm.txt | 105 +++++++++++++++++++++
include/dt-bindings/sound/mtk-afe.h | 36 +++++++
2 files changed, 141 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/mtk-afe-pcm.txt
create mode 100644 include/dt-bindings/sound/mtk-afe.h
diff --git a/Documentation/devicetree/bindings/sound/mtk-afe-pcm.txt b/Documentation/devicetree/bindings/sound/mtk-afe-pcm.txt
new file mode 100644
index 0000000..5a89090
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mtk-afe-pcm.txt
@@ -0,0 +1,105 @@
+Mediatek AFE PCM controller
+
+The AFE unit can be illustrated by this figure:
+
+| MEMIF | AFE | IO |
+ *****************
+DL1------> *I5 O3* <----I2S--->
+ *I6 O4*
+ * I3*
+ * I4*
+ * O0* <--2ndI2S-->
+ * O1*
+ * I0*
+ * I1*
+AWB<------ *O5 * <--MTKIF--->
+ *O6 *
+VUL<------ *O9 * <---HDMI--->
+ *O10 *
+ * AFE *
+HDMI-----> * inter-connect *
+ *****************
+AFE comprises several memory interfaces (DL1, DL2, VUL, DAI, AWB, MOD_DAI
+and HDMI) that communicate with CPU, a multi input multi output digital audio
+interconnect, and several external interfaces (I2S, proprietary MTKIF, HDMI).
+Each external interface (called "IO" in this driver) is presented as a
+DAI to ASoC. An IO must be connected via the interconnect to a memif.
+The connection pathes are configured through the device tree.
+
+Required properties:
+- compatible = "mediatek,mt8173-afe-pcm";
+- reg: array of register and sram location and size:
+ <register base address, size>,
+ <sram base address, size>;
+- interrupts: Should contain AFE interrupt
+- clock-names: should have these clock names:
+ "infra_sys_audio_clk",
+ "top_pdn_audio",
+ "top_pdn_aud_intbus",
+ "bck0",
+ "bck1",
+ "i2s0_m",
+ "i2s1_m",
+ "i2s2_m",
+ "i2s3_m",
+ "i2s3_b";
+
+DAI subnodes:
+ A DAI subnode describes which io connects to which memif.
+
+Required subnode properties:
+- io: which I/O to be used
+ (defined in include/dt-bindings/sound/mtk-afe.h)
+- connections: AFE connection pairs definition of this dai
+ For example, <5 3 6 4> means I5->O3, I6->O4
+ check SoC datasheet for a complete description
+- mem-interface-playback:
+ mem-interface-capture: property of memif, format is: <memif irq use_sram>;
+ memif: which memif to be used
+ (defined in include/dt-bindings/sound/mtk-afe.h)
+ irq: which irq to be used
+ (defined in include/dt-bindings/sound/mtk-afe.h)
+ use_sram: 1 is yes, 0 is no
+
+ Each DAI should describes at least playback or capture
+
+Example:
+
+ afe: mt8173-afe-pcm@11220000 {
+ compatible = "mediatek,mt8173-afe-pcm";
+ reg = <0 0x11220000 0 0x1000>,
+ <0 0x11221000 0 0x9000>;
+ interrupts = <GIC_SPI 134 IRQ_TYPE_EDGE_FALLING>;
+ clocks = <&infracfg INFRA_AUDIO>,
+ <&topckgen TOP_AUDIO_SEL>,
+ <&topckgen TOP_AUD_INTBUS_SEL>,
+ <&topckgen TOP_APLL1_DIV0>,
+ <&topckgen TOP_APLL2_DIV0>,
+ <&topckgen TOP_I2S0_M_CK_SEL>,
+ <&topckgen TOP_I2S1_M_CK_SEL>,
+ <&topckgen TOP_I2S2_M_CK_SEL>,
+ <&topckgen TOP_I2S3_M_CK_SEL>,
+ <&topckgen TOP_I2S3_B_CK_SEL>;
+ clock-names = "infra_sys_audio_clk",
+ "top_pdn_audio",
+ "top_pdn_aud_intbus",
+ "bck0",
+ "bck1",
+ "i2s0_m",
+ "i2s1_m",
+ "i2s2_m",
+ "i2s3_m",
+ "i2s3_b";
+ dai@0 {
+ io = <MTK_AFE_IO_I2S>;
+ connections = <5 3 6 4 3 9 4 10>;
+ mem-interface-playback = <MTK_AFE_MEMIF_DL1 MTK_AFE_IRQ_1 1>;
+ mem-interface-capture = <MTK_AFE_MEMIF_VUL MTK_AFE_IRQ_2 0>;
+ };
+
+ dai@1 {
+ io = <MTK_AFE_IO_HDMI>;
+ connections = <36 36 37 37 34 32 35 33 32 34 33 35 30 30 31 31>;
+ mem-interface-playback = <MTK_AFE_MEMIF_HDMI MTK_AFE_IRQ_5 0>;
+ };
+ };
diff --git a/include/dt-bindings/sound/mtk-afe.h b/include/dt-bindings/sound/mtk-afe.h
new file mode 100644
index 0000000..e6da18e
--- /dev/null
+++ b/include/dt-bindings/sound/mtk-afe.h
@@ -0,0 +1,36 @@
+#ifndef __DT_MTK_AFE_H
+#define __DT_MTK_AFE_H
+
+#define MTK_AFE_MEMIF_DL1 0
+#define MTK_AFE_MEMIF_DL2 1
+#define MTK_AFE_MEMIF_VUL 2
+#define MTK_AFE_MEMIF_DAI 3
+#define MTK_AFE_MEMIF_AWB 4
+#define MTK_AFE_MEMIF_MOD_DAI 5
+#define MTK_AFE_MEMIF_HDMI 6
+#define MTK_AFE_MEMIF_NUM 7
+
+#define MTK_AFE_IO_MOD_PCM1 0 /* connection to int main modem */
+#define MTK_AFE_IO_MOD_PCM2 1 /* connection to extrt/int modem */
+#define MTK_AFE_IO_PMIC 2 /* MTKIF for DAC and ADC */
+#define MTK_AFE_IO_I2S 3 /* I2S */
+#define MTK_AFE_IO_2ND_I2S 4 /* 2nd I2S */
+#define MTK_AFE_IO_HW_GAIN1 5 /* HW gain control */
+#define MTK_AFE_IO_HW_GAIN2 6
+#define MTK_AFE_IO_MRG_O 7 /* merge interface */
+#define MTK_AFE_IO_MRG_I 8
+#define MTK_AFE_IO_DAIBT 9
+#define MTK_AFE_IO_HDMI 10
+#define MTK_AFE_IO_NUM 11
+
+#define MTK_AFE_IRQ_1 0
+#define MTK_AFE_IRQ_2 1
+#define MTK_AFE_IRQ_3 2
+#define MTK_AFE_IRQ_4 3
+#define MTK_AFE_IRQ_5 4
+#define MTK_AFE_IRQ_6 5
+#define MTK_AFE_IRQ_7 6
+#define MTK_AFE_IRQ_8 7
+#define MTK_AFE_IRQ_NUM 8
+
+#endif /* __DT_MTK_AFE_H */
--
1.8.1.1.dirty
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