Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 61696580 authored by Suman Anna's avatar Suman Anna Committed by Bjorn Andersson
Browse files

remoteproc/davinci: Add device tree support for OMAP-L138 DSP 



The Davinci remoteproc driver currently supports the DSP remoteproc
device created in legacy-style on OMAP-L13x SoCs. The driver has been
enhanced to support the DSP remoteproc device created through Device
Tree now. The current DT support handles the C674x DSP processor
subsystem on OMAP-L138 SoCs.

Signed-off-by: default avatarSuman Anna <s-anna@ti.com>
Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent ae67b800

drivers/remoteproc/da8xx_remoteproc.c

+27 −3
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include <linux/irq.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/of_reserved_mem.h>

#include <linux/platform_device.h>

#include <linux/remoteproc.h>
@@ -261,10 +262,21 @@ static int da8xx_rproc_probe(struct platform_device *pdev) 
		return PTR_ERR(dsp_clk);

	}



	if (dev->of_node) {

		ret = of_reserved_mem_device_init(dev);

		if (ret) {

			dev_err(dev, "device does not have specific CMA pool: %d\n",

				ret);

			return ret;

		}

	}



	rproc = rproc_alloc(dev, "dsp", &da8xx_rproc_ops, da8xx_fw_name,

		sizeof(*drproc));

	if (!rproc)

		return -ENOMEM;

	if (!rproc) {

		ret = -ENOMEM;

		goto free_mem;

	}



	drproc = rproc->priv;

	drproc->rproc = rproc;
@@ -311,7 +323,9 @@ static int da8xx_rproc_probe(struct platform_device *pdev) 


free_rproc:

	rproc_free(rproc);



free_mem:

	if (dev->of_node)

		of_reserved_mem_device_release(dev);

	return ret;

}
@@ -319,6 +333,7 @@ static int da8xx_rproc_remove(struct platform_device *pdev) 
{

	struct rproc *rproc = platform_get_drvdata(pdev);

	struct da8xx_rproc *drproc = (struct da8xx_rproc *)rproc->priv;

	struct device *dev = &pdev->dev;



	/*

	 * The devm subsystem might end up releasing things before
@@ -329,15 +344,24 @@ static int da8xx_rproc_remove(struct platform_device *pdev) 


	rproc_del(rproc);

	rproc_free(rproc);

	if (dev->of_node)

		of_reserved_mem_device_release(dev);



	return 0;

}



static const struct of_device_id davinci_rproc_of_match[] __maybe_unused = {

	{ .compatible = "ti,da850-dsp", },

	{ /* sentinel */ },

};

MODULE_DEVICE_TABLE(of, davinci_rproc_of_match);



static struct platform_driver da8xx_rproc_driver = {

	.probe = da8xx_rproc_probe,

	.remove = da8xx_rproc_remove,

	.driver = {

		.name = "davinci-rproc",

		.of_match_table = of_match_ptr(davinci_rproc_of_match),

	},

};