diff options
| author | Jassi Brar | 2012-06-27 16:04:56 +0200 |
|---|---|---|
| committer | Tomi Valkeinen | 2012-06-29 08:42:42 +0200 |
| commit | 3a5383a2373fd5bc5ebdd781c8ac89ab5d0cb8a4 (patch) | |
| tree | f568116f7c39ee62ab42ab745946d55b48703cd6 /drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | |
| parent | OMAPDSS: HDMI: Discard phy_tx_enabled member (diff) | |
| download | kernel-qcow2-linux-3a5383a2373fd5bc5ebdd781c8ac89ab5d0cb8a4.tar.gz kernel-qcow2-linux-3a5383a2373fd5bc5ebdd781c8ac89ab5d0cb8a4.tar.xz kernel-qcow2-linux-3a5383a2373fd5bc5ebdd781c8ac89ab5d0cb8a4.zip | |
OMAPDSS: HDMI: Replace spinlock with mutex in hdmi_check_hpd_state
State change of HDMI PHY could potentially take many millisecs, we can do
better by protecting things in hdmi_set_phy_pwr() with a mutex rather than
a spin_lock_irqsave.
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c')
| -rw-r--r-- | drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c index 3fa3d98d1ae7..49b171b1f4ae 100644 --- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c +++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c @@ -235,13 +235,10 @@ void ti_hdmi_4xxx_pll_disable(struct hdmi_ip_data *ip_data) static int hdmi_check_hpd_state(struct hdmi_ip_data *ip_data) { - unsigned long flags; bool hpd; int r; - /* this should be in ti_hdmi_4xxx_ip private data */ - static DEFINE_SPINLOCK(phy_tx_lock); - spin_lock_irqsave(&phy_tx_lock, flags); + mutex_lock(&ip_data->lock); hpd = gpio_get_value(ip_data->hpd_gpio); @@ -257,7 +254,7 @@ static int hdmi_check_hpd_state(struct hdmi_ip_data *ip_data) } err: - spin_unlock_irqrestore(&phy_tx_lock, flags); + mutex_unlock(&ip_data->lock); return r; } |