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91 lines
3.1 KiB
Diff
91 lines
3.1 KiB
Diff
From fdb8d3521ecae71865df66a84a1cbe13f7daa6f5 Mon Sep 17 00:00:00 2001
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From: Peter Ujfalusi <peter.ujfalusi@ti.com>
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Date: Mon, 23 Sep 2013 11:25:02 +0300
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Subject: [PATCH 226/752] ASoC: davinci: mcasp: Remove redundant
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num-serializer DT parameter
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The serial-dir array gives this information so there is no need to have the
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num-serializer property in DT description.
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Just ignore the property in the driver the DTS files can be updated
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separately without regression.
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Update the documentation at the same time for davinci-mcasp
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Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
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---
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.../bindings/sound/davinci-mcasp-audio.txt | 8 +++----
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sound/soc/davinci/davinci-mcasp.c | 22 +++++---------------
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2 files changed, 8 insertions(+), 22 deletions(-)
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--- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
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+++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
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@@ -13,10 +13,9 @@ Required properties:
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good to keep "mpu" first in the list.
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- op-mode : I2S/DIT ops mode.
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- tdm-slots : Slots for TDM operation.
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-- num-serializer : Serializers used by McASP.
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-- serial-dir : A list of serializer pin mode. The list number should be equal
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- to "num-serializer" parameter. Each entry is a number indication
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- serializer pin direction. (0 - INACTIVE, 1 - TX, 2 - RX)
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+- serial-dir : A list of serializer configuration. Each entry is a number
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+ indication serializer pin direction.
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+ (0 - INACTIVE, 1 - TX, 2 - RX)
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- dmas: two element list of DMA controller phandles and DMA request line
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ordered pairs.
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- dma-names: identifier string for each DMA request line in the dmas property.
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@@ -45,7 +44,6 @@ mcasp0: mcasp0@1d00000 {
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interrupts-names = "tx", "rx";
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op-mode = <0>; /* MCASP_IIS_MODE */
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tdm-slots = <2>;
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- num-serializer = <16>;
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serial-dir = <
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0 0 0 0 /* 0: INACTIVE, 1: TX, 2: RX */
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0 0 0 0
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--- a/sound/soc/davinci/davinci-mcasp.c
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+++ b/sound/soc/davinci/davinci-mcasp.c
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@@ -1050,7 +1050,6 @@ static struct snd_platform_data *davinci
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struct of_phandle_args dma_spec;
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const u32 *of_serial_dir32;
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- u8 *of_serial_dir;
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u32 val;
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int i, ret = 0;
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@@ -1081,32 +1080,21 @@ static struct snd_platform_data *davinci
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pdata->tdm_slots = val;
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}
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- ret = of_property_read_u32(np, "num-serializer", &val);
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- if (ret >= 0)
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- pdata->num_serializer = val;
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-
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of_serial_dir32 = of_get_property(np, "serial-dir", &val);
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val /= sizeof(u32);
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- if (val != pdata->num_serializer) {
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- dev_err(&pdev->dev,
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- "num-serializer(%d) != serial-dir size(%d)\n",
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- pdata->num_serializer, val);
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- ret = -EINVAL;
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- goto nodata;
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- }
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-
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if (of_serial_dir32) {
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- of_serial_dir = devm_kzalloc(&pdev->dev,
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- (sizeof(*of_serial_dir) * val),
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- GFP_KERNEL);
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+ u8 *of_serial_dir = devm_kzalloc(&pdev->dev,
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+ (sizeof(*of_serial_dir) * val),
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+ GFP_KERNEL);
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if (!of_serial_dir) {
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ret = -ENOMEM;
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goto nodata;
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}
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- for (i = 0; i < pdata->num_serializer; i++)
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+ for (i = 0; i < val; i++)
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of_serial_dir[i] = be32_to_cpup(&of_serial_dir32[i]);
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+ pdata->num_serializer = val;
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pdata->serial_dir = of_serial_dir;
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}
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