clk: ti: am43xx: drop idlest polling from pruss clkctrl clock

The PRUSS modules on AM43xx SoCs have a hardreset line and are controlled
by a PRCM reset line. Any clkctrl enable/disable operations cannot be
checked for module enabled/disabled status independent of the reset
operation, and this causes some unwanted timeouts in the kernel and
unbalanced states for the PRUSS clocks. These details should be handled
by the driver integration code itself.

Add the CLKF_NO_IDLEST flag to the PRUSS clkctrl clock so that these
module status checks are skipped.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

diff --git a/drivers/clk/ti/clk-43xx.c b/drivers/clk/ti/clk-43xx.c
index 2782d91838ac4368e49c8ea9421d01963dff1391..7ec8fe6aa7c1a00f0f21a9d1a22e82707241d377 100644 (file)
--- a/drivers/clk/ti/clk-43xx.c
+++ b/drivers/clk/ti/clk-43xx.c
@@ -126,7 +126,7 @@ static const struct omap_clkctrl_reg_data am4_l3s_clkctrl_regs[] __initconst = {
 };
 
 static const struct omap_clkctrl_reg_data am4_pruss_ocp_clkctrl_regs[] __initconst = {
-       { AM4_PRUSS_OCP_PRUSS_CLKCTRL, NULL, CLKF_SW_SUP, "pruss_ocp_gclk" },
+       { AM4_PRUSS_OCP_PRUSS_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_NO_IDLEST, "pruss_ocp_gclk" },
        { 0 },
 };