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Commit f4bdc2bd authored by George Shen's avatar George Shen
Browse files

msm: cvp: Relocate CVP HW PC control 



To avoid CVP SMMU fault during CVP warm/cold boot.

Change-Id: I393d99c5b0227b7a695c4910f5186b2e5bd00209
Signed-off-by: default avatarGeorge Shen <sqiao@codeaurora.org>
parent cf47a886

drivers/media/platform/msm/cvp/cvp_hfi.c

+24 −10
Original line number Diff line number Diff line
@@ -3987,15 +3987,6 @@ static int __iris_power_on(struct iris_hfi_device *device) 
	device->intr_status = 0;

	enable_irq(device->cvp_hal_data->irq);



	/*

	 * Hand off control of regulators to h/w _after_ enabling clocks.

	 * Note that the GDSC will turn off when switching from normal

	 * (s/w triggered) to fast (HW triggered) unless the h/w vote is

	 * present. Since Iris isn't up yet, the GDSC will be off briefly.

	 */

	if (__enable_hw_power_collapse(device))

		dprintk(CVP_ERR, "Failed to enabled inter-frame PC\n");



	return rc;



fail_enable_clks:
@@ -4166,7 +4157,7 @@ static void power_off_iris2(struct iris_hfi_device *device) 
static inline int __resume(struct iris_hfi_device *device)

{

	int rc = 0;

	u32 flags = 0, reg_gdsc, reg_cbcr;

	u32 flags = 0, reg_gdsc, reg_cbcr, loop = 10;



	if (!device) {

		dprintk(CVP_ERR, "Invalid params: %pK\n", device);
@@ -4201,6 +4192,29 @@ static inline int __resume(struct iris_hfi_device *device) 
	}



	__setup_ucregion_memory_map(device);



	/*

	 * Hand off control of regulators to h/w _after_ enabling clocks.

	 * Note that the GDSC will turn off when switching from normal

	 * (s/w triggered) to fast (HW triggered) unless the h/w vote is

	 * present. Since Iris isn't up yet, the GDSC will be off briefly.

	 */

	if (__enable_hw_power_collapse(device))

		dprintk(CVP_ERR, "Failed to enabled inter-frame PC\n");



	while (loop) {

		reg_gdsc = __read_register(device, CVP_CC_MVS1_GDSCR);

		if (reg_gdsc & 0x80000000) {

			usleep_range(100, 200);

			loop--;

		} else {

			break;

		}

	}



	if (!loop)

		dprintk(CVP_ERR, "fail to power off CORE during resume\n");



	/* Wait for boot completion */

	rc = __boot_firmware(device);

	if (rc) {

drivers/media/platform/msm/cvp/cvp_hfi_io.h

+1 −0
Original line number Diff line number Diff line
@@ -220,4 +220,5 @@ 
#define CVP_CC_MVS0C_GDSCR			(CVP_CC_BASE_OFFS + 0xBF8)

#define CVP_CC_MVS1C_GDSCR			(CVP_CC_BASE_OFFS + 0xC98)

#define CVP_CC_MVS1C_CBCR			(CVP_CC_BASE_OFFS + 0xCD4)

#define CVP_CC_MVS1_GDSCR			(CVP_CC_BASE_OFFS + 0xD98)

#endif