[PATCH 03/10] firmware: cs_dsp: Support DSPs that don't require firmware download

Richard Fitzgerald
2023-02-17T16:14:57Z

From: Simon Trimmer <simont@opensource.cirrus.com>

When a DSP can self-boot from ROM it is not necessary to download
firmware during the powering up sequence.

A DSP that required firmware download would fail in a previous
configuration step if firmware was not available.

Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
---
drivers/firmware/cirrus/cs_dsp.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_dsp.c
index 97b73a254380..513136a924cf 100644
--- a/drivers/firmware/cirrus/cs_dsp.c
+++ b/drivers/firmware/cirrus/cs_dsp.c
@@ -1301,6 +1301,9 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct firmware *firmware,
int regions = 0;
int ret, offset, type;

+ if (!firmware)
+ return 0;
+
ret = -EINVAL;

pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
--
2.30.2