Commit 8af0bacd authored Feb 16, 2017 by Amit Nischal

clk: qcom: Move gcc_usb3_phy_pipe_clk to branch clock



A clk_disable on gate clocks would hold a global
spinlock and it would wait for a halt_delay. In some
race conditions(due to longer delays for gate clocks)
if any other CPU would also invoke a clk_disable then
it could result in a spinlock lockup. Avoid this by
moving the gcc_usb3_phy_pipe_clk clk to branch clock.

CRs-Fixed: 2008439
Change-Id: I177349844c571964637e16a150f93c5912f7dafe
Signed-off-by: Amit Nischal <anischal@codeaurora.org>

parent 5a092dc8

drivers/clk/qcom/gcc-sdm660.c

+4 −3

Original line number	Diff line number	Diff line
		@@ -2493,14 +2493,15 @@ static struct clk_branch gcc_usb3_phy_aux_clk = {
		},
		};

		static struct clk_gate2 gcc_usb3_phy_pipe_clk = {
		.udelay = 50,
		static struct clk_branch gcc_usb3_phy_pipe_clk = {
		.halt_reg = 0x50004,
		.halt_check = BRANCH_HALT_DELAY,
		.clkr = {
		.enable_reg = 0x50004,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
		.name = "gcc_usb3_phy_pipe_clk",
		.ops = &clk_gate2_ops,
		.ops = &clk_branch2_ops,
		},
		},
		};