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ASoC: Ux500: Enable ux500 MSP driver for Device Tree

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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>
This commit is contained in:
Lee Jones 2012-07-26 17:07:26 +01:00
parent 0af541ce47
commit 49731c23be
2 changed files with 25 additions and 3 deletions
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6
sound/soc/ux500/ux500_msp_dai.c
View File

@ -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,

22
sound/soc/ux500/ux500_msp_i2s.c
View File

@ -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;