Once the ST frontend demux HW IP has been enabled, the clock can't
be disabled otherwise the system will hang and the board will
be unserviceable.
To allow balanced clock enable/disable calls in the driver we use
the critical clock infrastructure to take an extra reference on the
clock so the clock will never actually be disabled.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
This patch enables the synchronous clock mode for video clocks
on STiH410 board.
Signed-off-by: Olivier Bideau <olivier.bideau@st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
This patch is used in the clock driver to apply a clock propagation
flag on the audio clocks of STiH410
Signed-off-by: Olivier Bideau <olivier.bideau@st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Lots of platforms contain clocks which if turned off would prove fatal.
The only way to recover is to restart the board(s). This driver takes
references to clocks which are required to be always-on. The Common
Clk Framework will then take references to them. This way they will
not be turned off during the clk_disabled_unused() procedure.
In this patch we are identifying clocks, which if gated would render
the STiH410 development board unserviceable.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Use a generic name for this kind of PLL
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
The STiH410 is an advanced multi-HD AVC processor with 3D graphics acceleration
and 1.5-GHz ARM Cortex-A9 SMP CPU part of the stih407 family.
It has wide connectivity including USB 3.0, PCI-e, SATA and gigabit ethernet.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Peter Griffin