2 Commits

Author	SHA1	Message	Date
Heiko Stuebner	dfff24bde7	clk: rockchip: only enter pll slow-mode directly before reboots on rk3288 ... As commit 1d33929e2a2b ("clk: rockchip: switch PLLs to slow mode before reboot for rk3288") states, switching the PLLs to slow-mode is only necessary when rebooting using the soft-reset done through the CRU. The dwc2 controllers used create really big number of interrupts in special constellations involving usb-hubs and their number is so high, it can even overwhelm the interrupt handler if the cpu-speed os to low. Right now the PLLs are put into slow-mode in a shutdown syscore_ops callback which means it happens on all reboots (not only the soft-reset ones) and even on poweroff actions. This can result in the system not powering off and getting stuck instead, so we should move the slow-mode change nearer to the actual reboot action. For this we introduce the possiblity to also set a callback that gets called from the restart-handler directly prior to restarting the system and move the shutdown-callback to this new option. With this the slow-mode switch is done only on the necessary reboots and also has a smaller possibility of causing artifacts. Fixes: 1d33929e2a2b ("clk: rockchip: switch PLLs to slow mode before reboot for rk3288") Signed-off-by: Heiko Stuebner <heiko.stuebner@collabora.com> Reviewed-by: Douglas Anderson <dianders@chromium.org>	2015-12-21 02:01:19 +01:00
Jeffy Chen	307a2e9ac5	clk: rockchip: add clock controller for rk3228 ... Add the clock tree definition for the new rk3228 SoC. Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>	2015-12-12 20:04:54 +01:00