Samsung has different versions of I2S introduced in different platforms. Each version has some new support added for multichannel, secondary fifo, s/w reset control and internal mux for rclk src clk. Each newly added change has a quirk. So this patch adds all the required quirks as driver data and based on compatible string from dtsi fetches the quirks.
Signed-off-by: Padmavathi Venna padma.v@samsung.com --- .../devicetree/bindings/sound/samsung-i2s.txt | 21 +++--- sound/soc/samsung/i2s.c | 82 +++++++++++++------- 2 files changed, 64 insertions(+), 39 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/samsung-i2s.txt b/Documentation/devicetree/bindings/sound/samsung-i2s.txt index 025e66b..b3f6443 100644 --- a/Documentation/devicetree/bindings/sound/samsung-i2s.txt +++ b/Documentation/devicetree/bindings/sound/samsung-i2s.txt @@ -2,7 +2,16 @@
Required SoC Specific Properties:
-- compatible : "samsung,i2s-v5" +- compatible : should be one of the following. + - samsung,s3c6410-i2s: for 8/16/24bit stereo I2S. Previous versions + has only 8/16bit support. + - samsung,s3c6410-i2sv4: for 8/16/24bit multichannel(5.1 channel) I2S. + Introduced in s3c6410. This also applicable for s5p64x0 platforms. + - samsung,s5pc100-i2s: for 8/16/24bit multichannel(5.1 channel) I2S + with secondary fifo and s/w reset control. + - samsung,s5pv210-i2s: for 8/16/24bit multichannel(5.1) I2S with + secondary fifo, s/w reset control and internal mux for root clk src. + - reg: physical base address of the controller and length of memory mapped region. - dmas: list of DMA controller phandle and DMA request line ordered pairs. @@ -21,13 +30,6 @@ Required SoC Specific Properties:
Optional SoC Specific Properties:
-- samsung,supports-6ch: If the I2S Primary sound source has 5.1 Channel - support, this flag is enabled. -- samsung,supports-rstclr: This flag should be set if I2S software reset bit - control is required. When this flag is set I2S software reset bit will be - enabled or disabled based on need. -- samsung,supports-secdai:If I2S block has a secondary FIFO and internal DMA, - then this flag is enabled. - samsung,idma-addr: Internal DMA register base address of the audio sub system(used in secondary sound source). - pinctrl-0: Should specify pin control groups used for this controller. @@ -46,9 +48,6 @@ i2s0: i2s@03830000 { <&clock_audss EXYNOS_I2S_BUS>, <&clock_audss EXYNOS_SCLK_I2S>; clock-names = "iis", "i2s_opclk0", "i2s_opclk1"; - samsung,supports-6ch; - samsung,supports-rstclr; - samsung,supports-secdai; samsung,idma-addr = <0x03000000>; pinctrl-names = "default"; pinctrl-0 = <&i2s0_bus>; diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index 47e08dd..8a5504c 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -40,6 +40,7 @@ enum samsung_dai_type {
struct samsung_i2s_dai_data { int dai_type; + u32 quirks; };
struct i2s_dai { @@ -1032,18 +1033,18 @@ static struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
static const struct of_device_id exynos_i2s_match[];
-static inline int samsung_i2s_get_driver_data(struct platform_device *pdev) +static inline struct samsung_i2s_dai_data *samsung_i2s_get_driver_data( + struct platform_device *pdev) { #ifdef CONFIG_OF - struct samsung_i2s_dai_data *data; if (pdev->dev.of_node) { const struct of_device_id *match; match = of_match_node(exynos_i2s_match, pdev->dev.of_node); - data = (struct samsung_i2s_dai_data *) match->data; - return data->dai_type; + return (struct samsung_i2s_dai_data *) match->data; } else #endif - return platform_get_device_id(pdev)->driver_data; + return (struct samsung_i2s_dai_data *) + platform_get_device_id(pdev)->driver_data; }
#ifdef CONFIG_PM_RUNTIME @@ -1074,13 +1075,13 @@ static int samsung_i2s_probe(struct platform_device *pdev) struct resource *res; u32 regs_base, quirks = 0, idma_addr = 0; struct device_node *np = pdev->dev.of_node; - enum samsung_dai_type samsung_dai_type; + struct samsung_i2s_dai_data *i2s_dai_data; int ret = 0;
/* Call during Seconday interface registration */ - samsung_dai_type = samsung_i2s_get_driver_data(pdev); + i2s_dai_data = samsung_i2s_get_driver_data(pdev);
- if (samsung_dai_type == TYPE_SEC) { + if (i2s_dai_data->dai_type == TYPE_SEC) { sec_dai = dev_get_drvdata(&pdev->dev); if (!sec_dai) { dev_err(&pdev->dev, "Unable to get drvdata\n"); @@ -1129,15 +1130,7 @@ static int samsung_i2s_probe(struct platform_device *pdev) idma_addr = i2s_cfg->idma_addr; } } else { - if (of_find_property(np, "samsung,supports-6ch", NULL)) - quirks |= QUIRK_PRI_6CHAN; - - if (of_find_property(np, "samsung,supports-secdai", NULL)) - quirks |= QUIRK_SEC_DAI; - - if (of_find_property(np, "samsung,supports-rstclr", NULL)) - quirks |= QUIRK_NEED_RSTCLR; - + quirks = i2s_dai_data->quirks; if (of_property_read_u32(np, "samsung,idma-addr", &idma_addr)) { if (quirks & QUIRK_SEC_DAI) { @@ -1250,27 +1243,60 @@ static int samsung_i2s_remove(struct platform_device *pdev) return 0; }
+static struct samsung_i2s_dai_data i2sv3_dai_type = { + .dai_type = TYPE_PRI, + .quirks = QUIRK_NO_MUXPSR, +}; + +static struct samsung_i2s_dai_data i2sv4_dai_type = { + .dai_type = TYPE_PRI, + .quirks = QUIRK_PRI_6CHAN | QUIRK_NO_MUXPSR, +}; + +static struct samsung_i2s_dai_data i2sv5_c100_dai_type = { + .dai_type = TYPE_PRI, + .quirks = QUIRK_PRI_6CHAN | QUIRK_NO_MUXPSR | QUIRK_SEC_DAI | + QUIRK_NEED_RSTCLR, +}; + +static struct samsung_i2s_dai_data i2sv5_dai_type = { + .dai_type = TYPE_PRI, + .quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR, +}; + +static struct samsung_i2s_dai_data samsung_dai_type_sec = { + .dai_type = TYPE_SEC, +}; + static struct platform_device_id samsung_i2s_driver_ids[] = { { - .name = "samsung-i2s", - .driver_data = TYPE_PRI, + .name = "samsung,s3c6410-i2s", + .driver_data = (kernel_ulong_t)&i2sv3_dai_type, + }, { + .name = "samsung,s3c6410-i2s-multi", + .driver_data = (kernel_ulong_t)&i2sv4_dai_type, + }, { + .name = "samsung,s5pc100-i2s", + .driver_data = (kernel_ulong_t)&i2sv5_c100_dai_type, }, { - .name = "samsung-i2s-sec", - .driver_data = TYPE_SEC, + .name = "samsung,s5pv210-i2s", + .driver_data = (kernel_ulong_t)&i2sv5_dai_type, + }, { + .name = "samsung-i2s-sec", + .driver_data = (kernel_ulong_t)&samsung_dai_type_sec, }, {}, }; MODULE_DEVICE_TABLE(platform, samsung_i2s_driver_ids);
#ifdef CONFIG_OF -static struct samsung_i2s_dai_data samsung_i2s_dai_data_array[] = { - [TYPE_PRI] = { TYPE_PRI }, - [TYPE_SEC] = { TYPE_SEC }, -}; - static const struct of_device_id exynos_i2s_match[] = { - { .compatible = "samsung,i2s-v5", - .data = &samsung_i2s_dai_data_array[TYPE_PRI], + { + .compatible = "samsung,s3c6410-i2s", + .data = &i2sv3_dai_type, + }, { + .compatible = "samsung,s5pv210-i2s", + .data = &i2sv5_dai_type, }, {}, };