@@ -833,10 +833,16 @@ static int __devexit ux500_msp_drv_remove(struct platform_device *pdev)
return 0;
}
+static const struct of_device_id ux500_msp_i2c_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_i2c_match,
},
.probe = ux500_msp_drv_probe,
.remove = ux500_msp_drv_remove,
@@ -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>
@@ -685,6 +686,16 @@ int ux500_msp_i2s_close(struct ux500_msp *msp, unsigned int dir)
}
+void ux500_msp_i2s_of_init_msp(struct platform_device *pdev,
+ struct ux500_msp *msp,
+ struct device_node *np)
+{
+ if (of_get_property(np, "stericsson,use-pinctrl", NULL))
+ msp->use_pinctrl = true;
+ else
+ msp->use_pinctrl = false;
+}
+
int ux500_msp_i2s_init_msp(struct platform_device *pdev,
struct ux500_msp **msp_p,
struct msp_i2s_platform_data *platform_data)
@@ -692,17 +703,33 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev,
int ret = 0;
struct resource *res = NULL;
struct i2s_controller *i2s_cont;
+ struct device_node *np = pdev->dev.of_node;
struct ux500_msp *msp;
static int initialised = false;
- 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 (!msp)
return -ENOMEM;
+ if (np) {
+ if (!platform_data) {
+ platform_data = devm_kzalloc(&pdev->dev,
+ sizeof(struct msp_i2s_platform_data), GFP_KERNEL);
+ if (!platform_data)
+ ret = -ENOMEM;
+ }
+ ux500_msp_i2s_of_init_msp(pdev, msp, np);
+ } 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->use_pinctrl = platform_data->use_pinctrl;
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. Signed-off-by: Lee Jones <lee.jones@linaro.org> --- sound/soc/ux500/ux500_msp_dai.c | 6 ++++++ sound/soc/ux500/ux500_msp_i2s.c | 33 ++++++++++++++++++++++++++++++--- 2 files changed, 36 insertions(+), 3 deletions(-)