Commit bfd1eb97 authored Jan 26, 2017 by Rajesh Kemisetti Committed by Lynus Vaz Mar 14, 2017

msm: kgsl: Do required clock settings for SDM660 GPU



Enable retention of memory and periphery logics for
GPU core clock. If the setting is not done then GPU
might get stale data while switching from NAP to
ACTIVE and which leads to page faults or hangs.

Clock settings need to be handled by client drivers only
and hence do it in KGSL driver.

Change-Id: Iea3fd720e2a0eda9f6ee719177a8898bc2bd75e4
Signed-off-by: Rajesh Kemisetti <rajeshk@codeaurora.org>

parent da755693

drivers/gpu/msm/adreno_a5xx.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1637,7 +1637,8 @@ static void a5xx_pwrlevel_change_settings(struct adreno_device *adreno_dev,
		static void a5xx_clk_set_options(struct adreno_device *adreno_dev,
		const char name, struct clk clk)
		{
		if (adreno_is_a540(adreno_dev)) {
		/* Handle clock settings for GFX PSCBCs */
		if (adreno_is_a540(adreno_dev) \|\| adreno_is_a512(adreno_dev)) {
		if (!strcmp(name, "mem_iface_clk")) {
		clk_set_flags(clk, CLKFLAG_NORETAIN_PERIPH);
		clk_set_flags(clk, CLKFLAG_NORETAIN_MEM);