ASoC: tegra: ensure clocks are enabled when touching registers

Debugfs files could be accessed any time, so explicitly enable clocks
when reading registers to generate debugfs file content.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/tegra/tegra_i2s.c b/sound/soc/tegra/tegra_i2s.c
index 33509de..2d98c92 100644 (file)
--- a/sound/soc/tegra/tegra_i2s.c
+++ b/sound/soc/tegra/tegra_i2s.c
@@ -79,11 +79,15 @@ static int tegra_i2s_show(struct seq_file *s, void *unused)
        struct tegra_i2s *i2s = s->private;
        int i;
 
+       clk_enable(i2s->clk_i2s);
+
        for (i = 0; i < ARRAY_SIZE(regs); i++) {
                u32 val = tegra_i2s_read(i2s, regs[i].offset);
                seq_printf(s, "%s = %08x\n", regs[i].name, val);
        }
 
+       clk_disable(i2s->clk_i2s);
+
        return 0;
 }
 

diff --git a/sound/soc/tegra/tegra_spdif.c b/sound/soc/tegra/tegra_spdif.c
index 475428c..9ff2c60 100644 (file)
--- a/sound/soc/tegra/tegra_spdif.c
+++ b/sound/soc/tegra/tegra_spdif.c
@@ -79,11 +79,15 @@ static int tegra_spdif_show(struct seq_file *s, void *unused)
        struct tegra_spdif *spdif = s->private;
        int i;
 
+       clk_enable(spdif->clk_spdif_out);
+
        for (i = 0; i < ARRAY_SIZE(regs); i++) {
                u32 val = tegra_spdif_read(spdif, regs[i].offset);
                seq_printf(s, "%s = %08x\n", regs[i].name, val);
        }
 
+       clk_disable(spdif->clk_spdif_out);
+
        return 0;
 }