Merge "soc: qcom: dcc: Set transaction timeout for dcc linklist" (f8c1e68b) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/soc/qcom/dcc_v2.c

+19 −1

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.
		* Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.
		*/

		#include <linux/module.h>
		@@ -87,6 +87,8 @@
		#define DCC_MAX_LINK_LIST 8
		#define DCC_INVALID_LINK_LIST 0xFF

		#define DEFAULT_TRANSACTION_TIMEOUT 0x3F

		enum dcc_func_type {
		DCC_FUNC_TYPE_CAPTURE,
		DCC_FUNC_TYPE_CRC,
		@@ -624,6 +626,9 @@ static int dcc_enable(struct dcc_drvdata *drvdata)
		int ret = 0;
		int list;
		uint32_t ram_cfg_base;
		uint32_t hw_info;
		uint32_t transaction_timeout;
		struct device_node *node = drvdata->dev->of_node;

		mutex_lock(&drvdata->mutex);

		@@ -655,6 +660,19 @@ static int dcc_enable(struct dcc_drvdata *drvdata)
		drvdata->ram_offset/4, DCC_FD_BASE(list));
		dcc_writel(drvdata, 0xFFF, DCC_LL_TIMEOUT(list));

		hw_info = dcc_readl(drvdata, DCC_HW_INFO);
		if (hw_info & 0x80) {
		ret = of_property_read_u32(node,
		"qcom,transaction_timeout",
		&transaction_timeout);
		if (ret)
		transaction_timeout =
		DEFAULT_TRANSACTION_TIMEOUT;
		if (transaction_timeout)
		dcc_writel(drvdata, transaction_timeout,
		DCC_TRANS_TIMEOUT(list));
		}

		/* 4. Clears interrupt status register */
		dcc_writel(drvdata, 0, DCC_LL_INT_ENABLE(list));
		dcc_writel(drvdata, (BIT(0) \| BIT(1) \| BIT(2)),