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tegra-alt: adsp: schedule work for freq override

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Schedule worker function for frequency override to avoid
adsp_override_freq() and clk_set_rate() getting called
from atomic context.

Bug 200222934

Change-Id: Ia65ce4a617bfd4494d04bdfac8b28e6d8260943c
Signed-off-by: Viraj Karandikar <vkarandikar@nvidia.com>
Reviewed-on: http://git-master/r/1211239
(cherry picked from commit 008fa5cd7722e3cdcb4ec96b13a73fda7e6bc2ad)
Reviewed-on: http://git-master/r/1252704
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Viraj Karandikar
2016-08-31 17:53:14 +05:30
committed by Sameer Pujar
parent efd1112f5c
commit 77c3fa9449
1 changed files with 9 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
sound/soc/tegra-alt/tegra210_adsp_alt.c
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@@ -113,6 +113,7 @@ struct tegra210_adsp_app {
spinlock_t lock;
void *private_data;
int (*msg_handler)(struct tegra210_adsp_app *, apm_msg_t *);
struct work_struct *override_freq_work;
};
struct tegra210_adsp_pcm_rtd {
@@ -138,6 +139,7 @@ struct tegra210_adsp {
struct clk *ahub_clk;
struct clk *ape_clk;
struct clk *apb2ape_clk;
struct work_struct override_freq_work;
uint32_t i2s_rate;
struct mutex mutex;
int init_done;
@@ -635,7 +637,10 @@ static int tegra210_adsp_eavbdma_params_msg(struct tegra210_adsp_app *app,
return tegra210_adsp_send_msg(app, &apm_msg, flags);
}
static void tegra_adsp_override_freq_worker(struct work_struct *work)
{
adsp_override_freq(INT_MAX);
}
static int tegra210_adsp_send_state_msg(struct tegra210_adsp_app *app,
int32_t state, uint32_t flags)
@@ -650,7 +655,7 @@ static int tegra210_adsp_send_state_msg(struct tegra210_adsp_app *app,
/* Spike ADSP freq to max when app transitions to active */
/* state; DFS will thereafter find appropriate rate */
if (state == nvfx_state_active)
adsp_override_freq(INT_MAX);
schedule_work(app->override_freq_work);
return tegra210_adsp_send_msg(app, &apm_msg, flags);
}
@@ -750,6 +755,7 @@ static int tegra210_adsp_app_init(struct tegra210_adsp *adsp,
app->adsp = adsp;
app->msg_handler = tegra210_adsp_app_default_msg_handler;
app->override_freq_work = &adsp->override_freq_work;
app->plugin = PLUGIN_SHARED_MEM(app->info->mem.shared);
if (IS_APM_IN(app->reg)) {
uint32_t apm_out_reg = APM_OUT_START +
@@ -3817,6 +3823,7 @@ static int tegra210_adsp_audio_platform_probe(struct platform_device *pdev)
/* TODO: Add mixer control to set I2S playback rate */
adsp->i2s_rate = 48000;
INIT_WORK(&adsp->override_freq_work, tegra_adsp_override_freq_worker);
mutex_init(&adsp->mutex);
pdev->dev.dma_mask = &tegra_dma_mask;
pdev->dev.coherent_dma_mask = tegra_dma_mask;