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Commit 2d656cb3 authored by Melody Olvera's avatar Melody Olvera
Browse files

soc: qcom: eud: Add support for different interrupt masks 



The EUD driver defaults to using INT1 for its interrupt mask.
However, certain targets don't use that interrupt for signalling
the apps processor. To remedy this, look for the interrupt-mask
binding in the device tree entry, and, if present, use the offset
there instead of the default.

Change-Id: Ib2db82c64d21a650044163b7322bc66ffe159d36
Signed-off-by: default avatarMelody Olvera <molvera@codeaurora.org>
parent 15c30a28

drivers/soc/qcom/eud.c

+9 −3
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.

 */



#include <linux/kernel.h>
@@ -65,6 +65,7 @@ struct eud_chip { 
	int				eud_irq;

	unsigned int			extcon_id;

	unsigned int			int_status;

	unsigned int			int_mask;

	bool				usb_attach;

	bool				chgr_enable;

	void __iomem			*eud_reg_base;
@@ -92,7 +93,7 @@ static inline void msm_eud_enable_irqs(struct eud_chip *chip) 
{

	/* Enable vbus, chgr & safe mode warning interrupts */

	writel_relaxed(EUD_INT_VBUS | EUD_INT_CHGR | EUD_INT_SAFE_MODE,

			chip->eud_reg_base + EUD_REG_INT1_EN_MASK);

			chip->eud_reg_base + chip->int_mask);

}



static int msm_eud_hw_is_enabled(struct platform_device *pdev)
@@ -506,7 +507,7 @@ static irqreturn_t handle_eud_irq(int irq, void *data) 
	struct eud_chip *chip = data;

	u8 reg;

	u32 int_mask_en1 = readl_relaxed(chip->eud_reg_base +

					EUD_REG_INT1_EN_MASK);

					chip->int_mask);



	/* read status register and find out which interrupt triggered */

	reg = readb_relaxed(chip->eud_reg_base + EUD_REG_INT_STATUS_1);
@@ -705,6 +706,11 @@ static int msm_eud_probe(struct platform_device *pdev) 
	if (chip->secure_eud_en && check_eud_mode_mgr2(chip))

		enable = 1;



	ret = of_property_read_u32(pdev->dev.of_node, "interrupt-mask",

			&chip->int_mask);

	if (ret)

		chip->int_mask = EUD_REG_INT1_EN_MASK;



	ret = uart_add_one_port(&eud_uart_driver, port);

	if (ret) {

		dev_err(chip->dev, "failed to add uart port!\n");