linux-kernel - [PATCH v2 6/8] ASoC: wm_adsp: Add support for loading bin files without wmfw

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Date:   Mon, 13 Mar 2023 15:49:53 +0000
From:   Richard Fitzgerald <rf@...nsource.cirrus.com>
To:     <broonie@...nel.org>, <pierre-louis.bossart@...ux.intel.com>
CC:     <peter.ujfalusi@...ux.intel.com>,
        <yung-chuan.liao@...ux.intel.com>, <alsa-devel@...a-project.org>,
        <linux-kernel@...r.kernel.org>, <patches@...nsource.cirrus.com>,
        Simon Trimmer <simont@...nsource.cirrus.com>,
        Richard Fitzgerald <rf@...nsource.cirrus.com>
Subject: [PATCH v2 6/8] ASoC: wm_adsp: Add support for loading bin files without wmfw

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

A self-booted DSP may have a file of coefficients to apply to the device
even when there is no firmware to download.

Signed-off-by: Simon Trimmer <simont@...nsource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
---
 sound/soc/codecs/wm_adsp.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index d4bffa2f7005..c23c306dc38d 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -850,8 +850,29 @@ static int wm_adsp_request_firmware_files(struct wm_adsp *dsp,
 		return 0;
 	}
 
-	if (dsp->wmfw_optional)
+	if (dsp->wmfw_optional) {
+		if (system_name) {
+			if (asoc_component_prefix)
+				wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
+							      cirrus_dir, system_name,
+							      asoc_component_prefix, "bin");
+
+			if (!*coeff_firmware)
+				wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
+							      cirrus_dir, system_name,
+							      NULL, "bin");
+		}
+
+		if (!*coeff_firmware)
+			wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
+						      "", NULL, NULL, "bin");
+
+		if (!*coeff_firmware)
+			wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
+						      cirrus_dir, NULL, NULL, "bin");
+
 		return 0;
+	}
 
 	adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n",
 		 cirrus_dir, dsp->part, dsp->fwf_name, wm_adsp_fw[dsp->fw].file,
-- 
2.30.2