zynqmp: pm: Buffer the PLL mode that is set using IOCTL API
When linux calls pm_ioctl_set_pll_frac_mode() it doesn't expect the
fractional mode to be changed in hardware. Furthermore, even before this
patch setting the mode which is done by writing into register takes
no effect until the PLL reset is deasserted, i.e. until linux "enables"
the PLL. To adjust the code to system-level PLL EEMI API and avoid
unnecessary IPIs that would otherwise be issued, we buffer the mode
value set via IOCTL until the PLL mode really needs to be set.
Signed-off-by: Mirela Simonovic <mirela.simonovic@aggios.com>
Acked-by: Will Wong <WILLW@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>
diff --git a/plat/xilinx/zynqmp/pm_service/pm_api_clock.h b/plat/xilinx/zynqmp/pm_service/pm_api_clock.h
index 482662d..bf42d95 100644
--- a/plat/xilinx/zynqmp/pm_service/pm_api_clock.h
+++ b/plat/xilinx/zynqmp/pm_service/pm_api_clock.h
@@ -308,8 +308,8 @@
unsigned int parent_idx);
enum pm_ret_status pm_api_clock_getparent(unsigned int clock_id,
unsigned int *parent_idx);
-enum pm_ret_status pm_api_clk_set_pll_mode(unsigned int pll,
- unsigned int mode);
+enum pm_ret_status pm_clock_set_pll_mode(enum clock_id clock_id,
+ unsigned int mode);
enum pm_ret_status pm_api_clk_get_pll_mode(unsigned int pll,
unsigned int *mode);