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authorLee Jones <lee.jones@linaro.org>2012-07-26 17:07:26 +0100
committerLee Jones <lee.jones@linaro.org>2012-09-20 09:10:57 +0200
commit49731c23bee88fd76af8cd57b915547b2175a26a (patch)
tree6a9bd7720279652be34ba3481cbdb2779de3adaa
parent0af541ce47ee4e80393dda12109a1efaf757fdcd (diff)
downloadop-kernel-dev-49731c23bee88fd76af8cd57b915547b2175a26a.zip
op-kernel-dev-49731c23bee88fd76af8cd57b915547b2175a26a.tar.gz
ASoC: Ux500: Enable ux500 MSP driver for Device Tree
Register both parts of the MSP driver from Device Tree so that they are probed when Device Tree is enabled. Also, as there is platform data involved, we ensure that there is allocated memory to place the configuration into and that the correct information is extracted from the DT binary. Acked-by: Ola Lilja <ola.o.lilja@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
-rw-r--r--sound/soc/ux500/ux500_msp_dai.c6
-rw-r--r--sound/soc/ux500/ux500_msp_i2s.c22
2 files changed, 25 insertions, 3 deletions
diff --git a/sound/soc/ux500/ux500_msp_dai.c b/sound/soc/ux500/ux500_msp_dai.c
index 057e28e..45e43b4 100644
--- a/sound/soc/ux500/ux500_msp_dai.c
+++ b/sound/soc/ux500/ux500_msp_dai.c
@@ -830,10 +830,16 @@ static int __devexit ux500_msp_drv_remove(struct platform_device *pdev)
return 0;
}
+static const struct of_device_id ux500_msp_i2s_match[] = {
+ { .compatible = "stericsson,ux500-msp-i2s", },
+ {},
+};
+
static struct platform_driver msp_i2s_driver = {
.driver = {
.name = "ux500-msp-i2s",
.owner = THIS_MODULE,
+ .of_match_table = ux500_msp_i2s_match,
},
.probe = ux500_msp_drv_probe,
.remove = ux500_msp_drv_remove,
diff --git a/sound/soc/ux500/ux500_msp_i2s.c b/sound/soc/ux500/ux500_msp_i2s.c
index 12d7f56..e5c79ca 100644
--- a/sound/soc/ux500/ux500_msp_i2s.c
+++ b/sound/soc/ux500/ux500_msp_i2s.c
@@ -18,6 +18,7 @@
#include <linux/pinctrl/consumer.h>
#include <linux/delay.h>
#include <linux/slab.h>
+#include <linux/of.h>
#include <mach/hardware.h>
#include <mach/msp.h>
@@ -683,14 +684,29 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev,
{
struct resource *res = NULL;
struct i2s_controller *i2s_cont;
+ struct device_node *np = pdev->dev.of_node;
struct ux500_msp *msp;
- dev_dbg(&pdev->dev, "%s: Enter (name: %s, id: %d).\n", __func__,
- pdev->name, platform_data->id);
-
*msp_p = devm_kzalloc(&pdev->dev, sizeof(struct ux500_msp), GFP_KERNEL);
msp = *msp_p;
+ if (np) {
+ if (!platform_data) {
+ platform_data = devm_kzalloc(&pdev->dev,
+ sizeof(struct msp_i2s_platform_data), GFP_KERNEL);
+ if (!platform_data)
+ ret = -ENOMEM;
+ }
+ } else
+ if (!platform_data)
+ ret = -EINVAL;
+
+ if (ret)
+ goto err_res;
+
+ dev_dbg(&pdev->dev, "%s: Enter (name: %s, id: %d).\n", __func__,
+ pdev->name, platform_data->id);
+
msp->id = platform_data->id;
msp->dev = &pdev->dev;
msp->dma_cfg_rx = platform_data->msp_i2s_dma_rx;
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