remoteproc: imx_dsp_rproc: Make rsc_table optional

There are cases when we want to test a simple "hello world"
app on the DSP and we do not need a resource table.

remoteproc core allows us having an optional rsc_table.

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20220331103237.340796-1-daniel.baluta@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

diff --git a/drivers/remoteproc/imx_dsp_rproc.c b/drivers/remoteproc/imx_dsp_rproc.c
index eee3c44c2146d99930b39a416b4e930a867e1bee..ca0817f8e41e9c33a378c9f32aefa05731e4f0e3 100644 (file)
--- a/drivers/remoteproc/imx_dsp_rproc.c
+++ b/drivers/remoteproc/imx_dsp_rproc.c
@@ -709,6 +709,14 @@ static void imx_dsp_rproc_kick(struct rproc *rproc, int vqid)
                dev_err(dev, "%s: failed (%d, err:%d)\n", __func__, vqid, err);
 }
 
+static int imx_dsp_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
+{
+       if (rproc_elf_load_rsc_table(rproc, fw))
+               dev_warn(&rproc->dev, "no resource table found for this firmware\n");
+
+       return 0;
+}
+
 static const struct rproc_ops imx_dsp_rproc_ops = {
        .prepare        = imx_dsp_rproc_prepare,
        .unprepare      = imx_dsp_rproc_unprepare,
@@ -716,7 +724,7 @@ static const struct rproc_ops imx_dsp_rproc_ops = {
        .stop           = imx_dsp_rproc_stop,
        .kick           = imx_dsp_rproc_kick,
        .load           = rproc_elf_load_segments,
-       .parse_fw       = rproc_elf_load_rsc_table,
+       .parse_fw       = imx_dsp_rproc_parse_fw,
        .sanity_check   = rproc_elf_sanity_check,
        .get_boot_addr  = rproc_elf_get_boot_addr,
 };