ASoC: davinci-mcasp: Remove redundant num-serializer DT parameter

The serial-dir array gives this information so there is no need to have the
num-serializer property in DT description.
Just ignore the property in the driver the DTS files can be updated
separately without regression.
Update the documentation at the same time for davinci-mcasp

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
index b925bf9..0aa416b 100644 (file)
--- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
+++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
@@ -49,7 +49,6 @@ mcasp0: mcasp0@1d00000 {
        interrupts-names = "tx", "rx";
        op-mode = <0>;          /* MCASP_IIS_MODE */
        tdm-slots = <2>;
-       num-serializer = <16>;
        serial-dir = <
                        0 0 0 0 /* 0: INACTIVE, 1: TX, 2: RX */
                        0 0 0 0

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index bbc9a07..71e14bb 100644 (file)
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -1050,7 +1050,6 @@ static struct snd_platform_data *davinci_mcasp_set_pdata_from_of(
        struct of_phandle_args dma_spec;
 
        const u32 *of_serial_dir32;
-       u8 *of_serial_dir;
        u32 val;
        int i, ret = 0;
 
@@ -1081,32 +1080,21 @@ static struct snd_platform_data *davinci_mcasp_set_pdata_from_of(
                pdata->tdm_slots = val;
        }
 
-       ret = of_property_read_u32(np, "num-serializer", &val);
-       if (ret >= 0)
-               pdata->num_serializer = val;
-
        of_serial_dir32 = of_get_property(np, "serial-dir", &val);
        val /= sizeof(u32);
-       if (val != pdata->num_serializer) {
-               dev_err(&pdev->dev,
-                               "num-serializer(%d) != serial-dir size(%d)\n",
-                               pdata->num_serializer, val);
-               ret = -EINVAL;
-               goto nodata;
-       }
-
        if (of_serial_dir32) {
-               of_serial_dir = devm_kzalloc(&pdev->dev,
-                                               (sizeof(*of_serial_dir) * val),
-                                               GFP_KERNEL);
+               u8 *of_serial_dir = devm_kzalloc(&pdev->dev,
+                                                (sizeof(*of_serial_dir) * val),
+                                                GFP_KERNEL);
                if (!of_serial_dir) {
                        ret = -ENOMEM;
                        goto nodata;
                }
 
-               for (i = 0; i < pdata->num_serializer; i++)
+               for (i = 0; i < val; i++)
                        of_serial_dir[i] = be32_to_cpup(&of_serial_dir32[i]);
 
+               pdata->num_serializer = val;
                pdata->serial_dir = of_serial_dir;
        }