diff options
Diffstat (limited to 'target/linux/at91/patches-5.10/152-ASoC-mchp-i2s-mcc-Add-support-to-select-TDM-pins.patch')
| -rw-r--r-- | target/linux/at91/patches-5.10/152-ASoC-mchp-i2s-mcc-Add-support-to-select-TDM-pins.patch | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/target/linux/at91/patches-5.10/152-ASoC-mchp-i2s-mcc-Add-support-to-select-TDM-pins.patch b/target/linux/at91/patches-5.10/152-ASoC-mchp-i2s-mcc-Add-support-to-select-TDM-pins.patch deleted file mode 100644 index 6d5a15d36b..0000000000 --- a/target/linux/at91/patches-5.10/152-ASoC-mchp-i2s-mcc-Add-support-to-select-TDM-pins.patch +++ /dev/null @@ -1,108 +0,0 @@ -From 2bbdc5b38603384996271a8817b0578a2360af2f Mon Sep 17 00:00:00 2001 -From: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> -Date: Mon, 1 Mar 2021 19:09:03 +0200 -Subject: [PATCH 152/247] ASoC: mchp-i2s-mcc: Add support to select TDM pins - -SAMA7G5's I2S-MCC has 4 pairs of DIN/DOUT pins. Since TDM only uses a -single pair of pins for synchronous capture and playback, the controller -needs to be told which of the pair is connected. This can be mentioned -using the "microchip,tdm-data-pair" property from DT. The property is -optional, useful only if TDM is used. If it's missing, DIN/DOUT 0 pins -will be used by default. - -Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> -Link: https://lore.kernel.org/r/20210301170905.835091-6-codrin.ciubotariu@microchip.com -Signed-off-by: Mark Brown <broonie@kernel.org> ---- - sound/soc/atmel/mchp-i2s-mcc.c | 52 +++++++++++++++++++++++++++++++--- - 1 file changed, 48 insertions(+), 4 deletions(-) - ---- a/sound/soc/atmel/mchp-i2s-mcc.c -+++ b/sound/soc/atmel/mchp-i2s-mcc.c -@@ -100,6 +100,8 @@ - #define MCHP_I2SMCC_MRA_DATALENGTH_8_BITS_COMPACT (7 << 1) - - #define MCHP_I2SMCC_MRA_WIRECFG_MASK GENMASK(5, 4) -+#define MCHP_I2SMCC_MRA_WIRECFG_TDM(pin) (((pin) << 4) & \ -+ MCHP_I2SMCC_MRA_WIRECFG_MASK) - #define MCHP_I2SMCC_MRA_WIRECFG_I2S_1_TDM_0 (0 << 4) - #define MCHP_I2SMCC_MRA_WIRECFG_I2S_2_TDM_1 (1 << 4) - #define MCHP_I2SMCC_MRA_WIRECFG_I2S_4_TDM_2 (2 << 4) -@@ -245,6 +247,7 @@ struct mchp_i2s_mcc_dev { - unsigned int frame_length; - int tdm_slots; - int channels; -+ u8 tdm_data_pair; - unsigned int gclk_use:1; - unsigned int gclk_running:1; - unsigned int tx_rdy:1; -@@ -589,6 +592,8 @@ static int mchp_i2s_mcc_hw_params(struct - if (!frame_length) - frame_length = 2 * params_physical_width(params); - } else if (dev->fmt & SND_SOC_DAIFMT_DSP_A) { -+ mra |= MCHP_I2SMCC_MRA_WIRECFG_TDM(dev->tdm_data_pair); -+ - if (dev->tdm_slots) { - if (channels % 2 && channels * 2 <= dev->tdm_slots) { - /* -@@ -914,6 +919,45 @@ static const struct of_device_id mchp_i2 - MODULE_DEVICE_TABLE(of, mchp_i2s_mcc_dt_ids); - #endif - -+static int mchp_i2s_mcc_soc_data_parse(struct platform_device *pdev, -+ struct mchp_i2s_mcc_dev *dev) -+{ -+ int err; -+ -+ if (!dev->soc) { -+ dev_err(&pdev->dev, "failed to get soc data\n"); -+ return -ENODEV; -+ } -+ -+ if (dev->soc->data_pin_pair_num == 1) -+ return 0; -+ -+ err = of_property_read_u8(pdev->dev.of_node, "microchip,tdm-data-pair", -+ &dev->tdm_data_pair); -+ if (err < 0 && err != -EINVAL) { -+ dev_err(&pdev->dev, -+ "bad property data for 'microchip,tdm-data-pair': %d", -+ err); -+ return err; -+ } -+ if (err == -EINVAL) { -+ dev_info(&pdev->dev, -+ "'microchip,tdm-data-pair' not found; assuming DIN/DOUT 0 for TDM\n"); -+ dev->tdm_data_pair = 0; -+ } else { -+ if (dev->tdm_data_pair > dev->soc->data_pin_pair_num - 1) { -+ dev_err(&pdev->dev, -+ "invalid value for 'microchip,tdm-data-pair': %d\n", -+ dev->tdm_data_pair); -+ return -EINVAL; -+ } -+ dev_dbg(&pdev->dev, "TMD format on DIN/DOUT %d pins\n", -+ dev->tdm_data_pair); -+ } -+ -+ return 0; -+} -+ - static int mchp_i2s_mcc_probe(struct platform_device *pdev) - { - struct mchp_i2s_mcc_dev *dev; -@@ -966,10 +1010,10 @@ static int mchp_i2s_mcc_probe(struct pla - } - - dev->soc = of_device_get_match_data(&pdev->dev); -- if (!dev->soc) { -- dev_err(&pdev->dev, "failed to get soc data\n"); -- return -ENODEV; -- } -+ err = mchp_i2s_mcc_soc_data_parse(pdev, dev); -+ if (err < 0) -+ return err; -+ - dev->dev = &pdev->dev; - dev->regmap = regmap; - platform_set_drvdata(pdev, dev); |