Re: [PATCH v4 3/4] ASoC: fsl_asrc: Add support for i.MX952 platform
From: Frank Li <Frank.li@nxp.com>
Date: 2026-02-06 16:44:50
Also in:
imx, linux-arm-kernel, linux-sound, linuxppc-dev, lkml
On Fri, Feb 06, 2026 at 09:48:04AM +0800, Shengjiu Wang wrote:
Add a compatible string, clock mapping table and enable the option 'start_before_dma' to support ASRC on the i.MX952 platform. The clock mapping table is to map the clock sources on i.MX952 to the clock ids in the driver, the clock ids are for all the clock sources on all supported platforms. Signed-off-by: Shengjiu Wang <redacted> Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com> ---
Reviewed-by: Frank Li <Frank.Li@nxp.com>
quoted hunk ↗ jump to hunk
sound/soc/fsl/fsl_asrc.c | 16 ++++++++++++++++ sound/soc/fsl/fsl_asrc.h | 14 ++++++++++++++ 2 files changed, 30 insertions(+)diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c index 2fe25667c888..5fda9b647c70 100644 --- a/sound/soc/fsl/fsl_asrc.c +++ b/sound/soc/fsl/fsl_asrc.c@@ -106,6 +106,12 @@ static unsigned char clk_map_imx8qxp[2][ASRC_CLK_MAP_LEN] = { }, }; +static unsigned char clk_map_imx952[ASRC_CLK_MAP_LEN] = { + 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0x0, + 0x0, 0x1, 0x2, 0x3, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0x4, 0x5, 0x6, 0x8, 0xf, 0xf, + 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0x7, 0x9, 0xa, 0xb, 0xc, 0xd, 0xf, 0xf, 0xf, 0xf, +}; + /* * According to RM, the divider range is 1 ~ 8, * prescaler is power of 2 from 1 ~ 128.@@ -1337,6 +1343,9 @@ static int fsl_asrc_probe(struct platform_device *pdev) asrc_priv->clk_map[IN] = clk_map_imx8qxp[map_idx]; asrc_priv->clk_map[OUT] = clk_map_imx8qxp[map_idx]; } + } else if (of_device_is_compatible(np, "fsl,imx952-asrc")) { + asrc_priv->clk_map[IN] = clk_map_imx952; + asrc_priv->clk_map[OUT] = clk_map_imx952; } asrc->channel_avail = 10;@@ -1575,11 +1584,18 @@ static const struct fsl_asrc_soc_data fsl_asrc_imx8qxp_data = { .channel_bits = 4, }; +static const struct fsl_asrc_soc_data fsl_asrc_imx952_data = { + .use_edma = true, + .channel_bits = 4, + .start_before_dma = true, +}; + static const struct of_device_id fsl_asrc_ids[] = { { .compatible = "fsl,imx35-asrc", .data = &fsl_asrc_imx35_data }, { .compatible = "fsl,imx53-asrc", .data = &fsl_asrc_imx53_data }, { .compatible = "fsl,imx8qm-asrc", .data = &fsl_asrc_imx8qm_data }, { .compatible = "fsl,imx8qxp-asrc", .data = &fsl_asrc_imx8qxp_data }, + { .compatible = "fsl,imx952-asrc", .data = &fsl_asrc_imx952_data }, {} }; MODULE_DEVICE_TABLE(of, fsl_asrc_ids);diff --git a/sound/soc/fsl/fsl_asrc.h b/sound/soc/fsl/fsl_asrc.h index 60b6865ca952..7a81366a0ee4 100644 --- a/sound/soc/fsl/fsl_asrc.h +++ b/sound/soc/fsl/fsl_asrc.h@@ -326,6 +326,13 @@ enum asrc_inclk { INCLK_SAI6_TX_BCLK = 0x22, INCLK_HDMI_RX_SAI0_RX_BCLK = 0x24, INCLK_HDMI_TX_SAI0_TX_BCLK = 0x25, + + INCLK_SAI2_TX_BCLK = 0x26, + INCLK_SAI3_TX_BCLK = 0x27, + INCLK_SAI4_RX_BCLK = 0x28, + INCLK_SAI4_TX_BCLK = 0x29, + INCLK_SAI5_RX_BCLK = 0x2a, + INCLK_SAI5_TX_BCLK = 0x2b, }; enum asrc_outclk {@@ -366,6 +373,13 @@ enum asrc_outclk { OUTCLK_SAI6_TX_BCLK = 0x22, OUTCLK_HDMI_RX_SAI0_RX_BCLK = 0x24, OUTCLK_HDMI_TX_SAI0_TX_BCLK = 0x25, + + OUTCLK_SAI2_TX_BCLK = 0x26, + OUTCLK_SAI3_TX_BCLK = 0x27, + OUTCLK_SAI4_RX_BCLK = 0x28, + OUTCLK_SAI4_TX_BCLK = 0x29, + OUTCLK_SAI5_RX_BCLK = 0x2a, + OUTCLK_SAI5_TX_BCLK = 0x2b, }; #define ASRC_CLK_MAX_NUM 16 --2.34.1