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Commit 4396fc12 authored by Prakash Kamliya's avatar Prakash Kamliya
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msm: kgsl: Check for valid regulator in power control 



Check regulator is valid before calling regulator
driver functions.

Change-Id: I8e37d956723ed491bb34f9bae585ab2ebbfa67c1
Signed-off-by: default avatarPrakash Kamliya <pkamliya@codeaurora.org>
parent 81e1da90

drivers/gpu/msm/adreno.c

+7 −4
Original line number Diff line number Diff line
@@ -2691,15 +2691,18 @@ static void adreno_regulator_disable_poll(struct kgsl_device *device) 
{

	struct adreno_device *adreno_dev = ADRENO_DEVICE(device);

	struct kgsl_pwrctrl *pwr = &device->pwrctrl;

	unsigned long wait_time = jiffies + msecs_to_jiffies(200);

	int i, rail_on = 1;

	unsigned long wait_time;

	int i, rail_on;



	if (ADRENO_FEATURE(adreno_dev, ADRENO_SYNC_SMMU_PC)) {

		adreno_iommu_sync(device, true);

		/* Turn off CX and then GX as recommened by HW team */

		for (i = 0; i <= KGSL_MAX_REGULATORS - 1; i++) {

			if (pwr->gpu_reg[i])

			if (pwr->gpu_reg[i] == NULL)

				continue;

			regulator_disable(pwr->gpu_reg[i]);

			rail_on = 1;

			wait_time = jiffies + msecs_to_jiffies(200);

			while (!time_after(jiffies, wait_time)) {

				if (regulator_is_enabled(pwr->gpu_reg[i]) == 0)

					rail_on = 0;