evie/android_kernel_oneplus_msm8998
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msm: kgsl: Do required clock settings for SDM660 GPU

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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>
This commit is contained in:
Rajesh Kemisetti 2017-01-26 18:08:16 +05:30
parent 2e47ba9a64
commit ac6d567b7a
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/msm/adreno_a5xx.c
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@ -1639,7 +1639,8 @@ 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);