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OMAPDSS: HDMI: Add locking for hdmi interface set timing functions

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The hdmi interface driver exposes functions to the hdmi panel driver to
configure the interface timings maintained by the hdmi driver.

These timings(stored in hdmi.ip_data.cfg) should be protected by the hdmi lock
to ensure they are called sequentially, this is similar to how hdmi enable and
disable functions need locking.

Signed-off-by: Archit Taneja <archit@ti.com>
This commit is contained in:
Archit Taneja 2012-08-15 00:40:31 +05:30
parent 7849398fa2
commit ed1aa9003b
1 changed files with 4 additions and 0 deletions
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4
drivers/video/omap2/dss/hdmi.c
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@ -561,6 +561,8 @@ void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev,
struct hdmi_cm cm;
const struct hdmi_config *t;
mutex_lock(&hdmi.lock);
cm = hdmi_get_code(timings);
hdmi.ip_data.cfg.cm = cm;
@ -579,6 +581,8 @@ void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev,
} else {
dss_mgr_set_timings(dssdev->manager, &t->timings);
}
mutex_unlock(&hdmi.lock);
}
static void hdmi_dump_regs(struct seq_file *s)