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Commit 34b2a329 authored by Skylar Chang's avatar Skylar Chang
Browse files

msm: ipa3: do not clear irq before register 



Avoid clearing pending interrupts on IPA driver before registering.
This may lead to missing an interrupt fired before IPA was
registered to it.

Change-Id: I69a0374eb55d4fcc79d87a1acb7aa73ae6807439
CRs-Fixed: 965412
Acked-by: default avatarAdy Abraham <adya@qti.qualcomm.com>
Signed-off-by: default avatarSkylar Chang <chiaweic@codeaurora.org>
parent 184e2ced

drivers/platform/msm/ipa/ipa_v3/ipa_interrupts.c

+1 −11
Original line number Diff line number Diff line 
/* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.

/* Copyright (c) 2014-2016, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -439,7 +439,6 @@ int ipa3_remove_interrupt_handler(enum ipa_irq_type interrupt) 
int ipa3_interrupts_init(u32 ipa_irq, u32 ee, struct device *ipa_dev)

{

	int idx;

	u32 reg = 0xFFFFFFFF;

	int res = 0;



	ipa_ee = ee;
@@ -457,15 +456,6 @@ int ipa3_interrupts_init(u32 ipa_irq, u32 ee, struct device *ipa_dev) 
		return -ENOMEM;

	}



	/* Clearing interrupts status */

	ipa3_uc_rg10_write_reg(ipa3_ctx->mmio,

		IPA_IRQ_CLR_EE_n_ADDR(ipa_ee), reg);



	/* Clearing L2 interrupts status */

	if (ipa3_ctx->ipa_hw_type == IPA_HW_v3_1)

		ipa_write_reg(ipa3_ctx->mmio,

			IPA_SUSPEND_IRQ_CLR_EE_n_ADDR(ipa_ee), reg);



	res = request_irq(ipa_irq, (irq_handler_t) ipa3_isr,

				IRQF_TRIGGER_RISING, "ipa", ipa_dev);

	if (res) {