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

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)