linux/sound/soc/qcom/apq8096.c
Stephan Gerhold 3c27ea23ff
ASoC: qcom: Set card->owner to avoid warnings
On Linux 5.9-rc1 I get the following warning with apq8016-sbc:

WARNING: CPU: 2 PID: 69 at sound/core/init.c:207 snd_card_new+0x36c/0x3b0 [snd]
CPU: 2 PID: 69 Comm: kworker/2:1 Not tainted 5.9.0-rc1 #1
Workqueue: events deferred_probe_work_func
pc : snd_card_new+0x36c/0x3b0 [snd]
lr : snd_card_new+0xf4/0x3b0 [snd]
Call trace:
 snd_card_new+0x36c/0x3b0 [snd]
 snd_soc_bind_card+0x340/0x9a0 [snd_soc_core]
 snd_soc_register_card+0xf4/0x110 [snd_soc_core]
 devm_snd_soc_register_card+0x44/0xa0 [snd_soc_core]
 apq8016_sbc_platform_probe+0x11c/0x140 [snd_soc_apq8016_sbc]

This warning was introduced in
commit 81033c6b58 ("ALSA: core: Warn on empty module").
It looks like we are supposed to set card->owner to THIS_MODULE.

Fix this for all the qcom ASoC drivers.

Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Fixes: 79119c7986 ("ASoC: qcom: Add Storm machine driver")
Fixes: bdb052e81f ("ASoC: qcom: add apq8016 sound card support")
Fixes: a6f933f63f ("ASoC: qcom: apq8096: Add db820c machine driver")
Fixes: 6b1687bf76 ("ASoC: qcom: add sdm845 sound card support")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200820154511.203072-1-stephan@gerhold.net
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-21 16:12:10 +01:00

145 lines
3.8 KiB
C

// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2018, Linaro Limited
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of_device.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/pcm.h>
#include "common.h"
#define SLIM_MAX_TX_PORTS 16
#define SLIM_MAX_RX_PORTS 16
#define WCD9335_DEFAULT_MCLK_RATE 9600000
static int apq8096_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
struct snd_interval *rate = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_RATE);
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
rate->min = rate->max = 48000;
channels->min = channels->max = 2;
return 0;
}
static int msm_snd_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
u32 rx_ch[SLIM_MAX_RX_PORTS], tx_ch[SLIM_MAX_TX_PORTS];
u32 rx_ch_cnt = 0, tx_ch_cnt = 0;
int ret = 0;
ret = snd_soc_dai_get_channel_map(codec_dai,
&tx_ch_cnt, tx_ch, &rx_ch_cnt, rx_ch);
if (ret != 0 && ret != -ENOTSUPP) {
pr_err("failed to get codec chan map, err:%d\n", ret);
goto end;
} else if (ret == -ENOTSUPP) {
return 0;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
rx_ch_cnt, rx_ch);
else
ret = snd_soc_dai_set_channel_map(cpu_dai, tx_ch_cnt, tx_ch,
0, NULL);
if (ret != 0 && ret != -ENOTSUPP)
pr_err("Failed to set cpu chan map, err:%d\n", ret);
else if (ret == -ENOTSUPP)
ret = 0;
end:
return ret;
}
static struct snd_soc_ops apq8096_ops = {
.hw_params = msm_snd_hw_params,
};
static int apq8096_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
/*
* Codec SLIMBUS configuration
* RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8, RX9, RX10, RX11, RX12, RX13
* TX1, TX2, TX3, TX4, TX5, TX6, TX7, TX8, TX9, TX10, TX11, TX12, TX13
* TX14, TX15, TX16
*/
unsigned int rx_ch[SLIM_MAX_RX_PORTS] = {144, 145, 146, 147, 148, 149,
150, 151, 152, 153, 154, 155, 156};
unsigned int tx_ch[SLIM_MAX_TX_PORTS] = {128, 129, 130, 131, 132, 133,
134, 135, 136, 137, 138, 139,
140, 141, 142, 143};
snd_soc_dai_set_channel_map(codec_dai, ARRAY_SIZE(tx_ch),
tx_ch, ARRAY_SIZE(rx_ch), rx_ch);
snd_soc_dai_set_sysclk(codec_dai, 0, WCD9335_DEFAULT_MCLK_RATE,
SNDRV_PCM_STREAM_PLAYBACK);
return 0;
}
static void apq8096_add_be_ops(struct snd_soc_card *card)
{
struct snd_soc_dai_link *link;
int i;
for_each_card_prelinks(card, i, link) {
if (link->no_pcm == 1) {
link->be_hw_params_fixup = apq8096_be_hw_params_fixup;
link->init = apq8096_init;
link->ops = &apq8096_ops;
}
}
}
static int apq8096_platform_probe(struct platform_device *pdev)
{
struct snd_soc_card *card;
struct device *dev = &pdev->dev;
int ret;
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
return -ENOMEM;
card->dev = dev;
card->owner = THIS_MODULE;
dev_set_drvdata(dev, card);
ret = qcom_snd_parse_of(card);
if (ret)
return ret;
apq8096_add_be_ops(card);
return devm_snd_soc_register_card(dev, card);
}
static const struct of_device_id msm_snd_apq8096_dt_match[] = {
{.compatible = "qcom,apq8096-sndcard"},
{}
};
MODULE_DEVICE_TABLE(of, msm_snd_apq8096_dt_match);
static struct platform_driver msm_snd_apq8096_driver = {
.probe = apq8096_platform_probe,
.driver = {
.name = "msm-snd-apq8096",
.of_match_table = msm_snd_apq8096_dt_match,
},
};
module_platform_driver(msm_snd_apq8096_driver);
MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
MODULE_DESCRIPTION("APQ8096 ASoC Machine Driver");
MODULE_LICENSE("GPL v2");