diff options
| author | Suman Anna <s-anna@ti.com> | 2017-08-01 17:48:44 +0200 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2017-08-24 21:00:21 +0200 |
| commit | 616965805f6da028fe164f917d6fbd81b29dc5bd (patch) | |
| tree | 1ca4f764bbf2cf7697772607edddd249f1d4c81c /drivers/remoteproc | |
| parent | dt-bindings: remoteproc: Add bindings for Davinci DSP processors (diff) | |
| download | linux-616965805f6da028fe164f917d6fbd81b29dc5bd.tar.xz linux-616965805f6da028fe164f917d6fbd81b29dc5bd.zip | |
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: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/da8xx_remoteproc.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/drivers/remoteproc/da8xx_remoteproc.c b/drivers/remoteproc/da8xx_remoteproc.c index c1cff78de67b..bf3b9034c319 100644 --- a/drivers/remoteproc/da8xx_remoteproc.c +++ b/drivers/remoteproc/da8xx_remoteproc.c @@ -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), }, }; |