IPQ8074 has an integrated Hexagon dsp core Q6v5 and a wireless lan (Lithium) IP. This patch adds the remoteproc driver to reset, load and boot Q6 firmware. Signed-off-by: Sricharan R <sricharan@xxxxxxxxxxxxxx> --- drivers/remoteproc/Kconfig | 13 + drivers/remoteproc/Makefile | 1 + drivers/remoteproc/q6v5-wcss.c | 784 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 798 insertions(+) create mode 100644 drivers/remoteproc/q6v5-wcss.c diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig index faad69a..a08eb1d 100644 --- a/drivers/remoteproc/Kconfig +++ b/drivers/remoteproc/Kconfig @@ -114,6 +114,19 @@ config QCOM_WCNSS_PIL Say y here to support the Peripheral Image Loader for the Qualcomm Wireless Connectivity Subsystem. +config QCOM_Q6V5_WCNSS_PIL + tristate "Qualcomm Q6V5-WCNSS Peripheral Image Loader" + depends on OF && ARCH_QCOM + depends on RPMSG_QCOM_SMD || (COMPILE_TEST && RPMSG_QCOM_SMD=n) + depends on QCOM_SMEM + depends on REMOTEPROC + select QCOM_MDT_LOADER + select QCOM_RPROC_COMMON + select QCOM_SCM + help + Say y here to support the Peripheral Image Loader for the Qualcomm + Hexagon V5 + Wireless Connectivity Subsystem. + config ST_REMOTEPROC tristate "ST remoteproc support" depends on ARCH_STI diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile index ffc5e43..ebe339f 100644 --- a/drivers/remoteproc/Makefile +++ b/drivers/remoteproc/Makefile @@ -15,6 +15,7 @@ obj-$(CONFIG_QCOM_ADSP_PIL) += qcom_adsp_pil.o obj-$(CONFIG_QCOM_RPROC_COMMON) += qcom_common.o obj-$(CONFIG_QCOM_Q6V5_PIL) += qcom_q6v5_pil.o obj-$(CONFIG_QCOM_WCNSS_PIL) += qcom_wcnss_pil.o +obj-$(CONFIG_QCOM_Q6V5_WCNSS_PIL) += q6v5-wcss.o qcom_wcnss_pil-y += qcom_wcnss.o qcom_wcnss_pil-y += qcom_wcnss_iris.o obj-$(CONFIG_ST_REMOTEPROC) += st_remoteproc.o diff --git a/drivers/remoteproc/q6v5-wcss.c b/drivers/remoteproc/q6v5-wcss.c new file mode 100644 index 0000000..52bdc71 --- /dev/null +++ b/drivers/remoteproc/q6v5-wcss.c @@ -0,0 +1,784 @@ +/* + * Qualcomm q6v5-wcss Peripheral Image Loader + * + * Copyright (c) 2017, The Linux Foundation. All rights reserved. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/bitops.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/elf.h> +#include <linux/err.h> +#include <linux/firmware.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/mfd/syscon.h> +#include <linux/module.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/qcom_scm.h> +#include <linux/regmap.h> +#include <linux/remoteproc.h> +#include <linux/reset.h> +#include <linux/soc/qcom/mdt_loader.h> +#include <linux/soc/qcom/smem.h> +#include <linux/soc/qcom/smem_state.h> + +#include "qcom_common.h" +#include "remoteproc_internal.h" + +#define WCSS_CRASH_REASON_SMEM 421 +#define WCNSS_PAS_ID 6 +#define STOP_ACK_TIMEOUT_MS 10000 + +#define QDSP6SS_RST_EVB 0x10 +#define QDSP6SS_RESET 0x14 +#define QDSP6SS_DBG_CFG 0x18 +#define QDSP6SS_XO_CBCR 0x38 +#define QDSP6SS_MEM_PWR_CTL 0xb0 +#define QDSP6SS_BHS_STATUS 0x78 +#define TCSR_GLOBAL_CFG0 0x0 +#define TCSR_GLOBAL_CFG1 0x4 + +#define QDSP6SS_GFMUX_CTL 0x20 +#define QDSP6SS_PWR_CTL 0x30 +#define TCSR_HALTREQ 0x0 +#define TCSR_HALTACK 0x4 +#define TCSR_Q6_HALTREQ 0x0 +#define TCSR_Q6_HALTACK 0x4 +#define SSCAON_CONFIG 0x8 +#define SSCAON_STATUS 0xc +#define HALTACK BIT(0) +#define BHS_EN_REST_ACK BIT(0) + +struct q6v5 { + struct device *dev; + struct qcom_rproc_subdev smd_subdev; + phys_addr_t mem_phys; + size_t mem_size; + void *mem_region; + void __iomem *q6_base; + void __iomem *mpm_base; + struct regmap *tcsr; + unsigned int halt_gbl; + unsigned int halt_q6; + unsigned int halt_wcss; + struct rproc *rproc; + struct completion start_done; + struct completion stop_done; + struct qcom_smem_state *state; + unsigned int stop_bit; + unsigned int shutdown_bit; + bool running; + struct clk **clks; + int clk_cnt; + struct reset_control *wcss_aon_reset; + struct reset_control *wcss_reset; + struct reset_control *wcss_q6_reset; +}; + +static struct resource_table *q6v5_find_rsc_table(struct rproc *rproc, + const struct firmware *fw, + int *tablesz) +{ + static struct resource_table table = { .ver = 1, }; + + *tablesz = sizeof(table); + return &table; +} + +static int q6v5_init_clocks(struct device *dev, struct q6v5 *qproc) +{ + int i; + const char *cname; + struct property *prop; + + qproc->clk_cnt = of_property_count_strings(dev->of_node, + "clock-names"); + + if (!qproc->clk_cnt) + return 0; + + qproc->clks = devm_kzalloc(dev, sizeof(*qproc->clks) * qproc->clk_cnt, + GFP_KERNEL); + + of_property_for_each_string(dev->of_node, "clock-names", prop, cname) { + struct clk *c = devm_clk_get(dev, cname); + + if (IS_ERR_OR_NULL(c)) { + if (PTR_ERR(c) != -EPROBE_DEFER) + dev_err(dev, "Failed to get %s clock\n", cname); + + return PTR_ERR(c); + } + + qproc->clks[i++] = c; + } + + return 0; +} + +static int q6v5_clk_enable(struct q6v5 *qproc) +{ + int rc; + int i; + + for (i = 0; i < qproc->clk_cnt; i++) { + rc = clk_prepare_enable(qproc->clks[i]); + if (rc) + goto err; + } + + return 0; +err: + for (i--; i >= 0; i--) + clk_disable_unprepare(qproc->clks[i]); + + return rc; +} + +static int wcss_powerdown(struct q6v5 *qproc) +{ + unsigned int nretry = 0; + unsigned int val = 0; + int ret; + + /* Assert WCSS/Q6 HALTREQ - 1 */ + nretry = 0; + + ret = regmap_update_bits(qproc->tcsr, qproc->halt_wcss + TCSR_HALTREQ, + 1, 1); + if (ret) + return ret; + + while (1) { + regmap_read(qproc->tcsr, qproc->halt_wcss + TCSR_HALTACK, + &val); + if (val & HALTACK) + break; + mdelay(1); + nretry++; + if (nretry >= 10) { + pr_warn("can't get TCSR haltACK\n"); + break; + } + } + + /* Check HALTACK */ + /* Set MPM_SSCAON_CONFIG 13 - 2 */ + val = readl(qproc->mpm_base + SSCAON_CONFIG); + val |= BIT(13); + writel(val, qproc->mpm_base + SSCAON_CONFIG); + + /* Set MPM_SSCAON_CONFIG 15 - 3 */ + val = readl(qproc->mpm_base + SSCAON_CONFIG); + val |= BIT(15); + val &= ~(BIT(16)); + val &= ~(BIT(17)); + val &= ~(BIT(18)); + writel(val, qproc->mpm_base + SSCAON_CONFIG); + + /* Set MPM_SSCAON_CONFIG 1 - 4 */ + val = readl(qproc->mpm_base + SSCAON_CONFIG); + val |= BIT(1); + writel(val, qproc->mpm_base + SSCAON_CONFIG); + + /* wait for SSCAON_STATUS to be 0x400 - 5 */ + nretry = 0; + while (1) { + val = readl(qproc->mpm_base + SSCAON_STATUS); + /* ignore bits 16 to 31 */ + val &= 0xffff; + if (val == BIT(10)) + break; + nretry++; + mdelay(1); + if (nretry == 10) { + pr_warn("can't get SSCAON_STATUS\n"); + break; + } + } + + /* Enable Q6/WCSS BLOCK ARES - 6 */ + reset_control_assert(qproc->wcss_aon_reset); + + /* Enable MPM_WCSSAON_CONFIG 13 - 7 */ + val = readl(qproc->mpm_base + SSCAON_CONFIG); + val &= (~(BIT(13))); + writel(val, qproc->mpm_base + SSCAON_CONFIG); + + /* Enable A2AB/ACMT/ECHAB ARES - 8 */ + /* De-assert WCSS/Q6 HALTREQ - 8 */ + reset_control_assert(qproc->wcss_reset); + + ret = regmap_update_bits(qproc->tcsr, qproc->halt_wcss + TCSR_HALTREQ, + 1, 0); + + return ret; +} + +static int q6_powerdown(struct q6v5 *qproc) +{ + int i = 0, ret; + unsigned int nretry = 0; + unsigned int val = 0; + + /* Halt Q6 bus interface - 9*/ + ret = regmap_update_bits(qproc->tcsr, qproc->halt_q6 + TCSR_Q6_HALTREQ, + 1, 1); + if (ret) + return ret; + + nretry = 0; + while (1) { + regmap_read(qproc->tcsr, qproc->halt_q6 + TCSR_Q6_HALTACK, + &val); + if (val & HALTACK) + break; + mdelay(1); + nretry++; + if (nretry >= 10) { + pr_err("can't get TCSR Q6 haltACK\n"); + break; + } + } + + /* Disable Q6 Core clock - 10 */ + val = readl(qproc->q6_base + QDSP6SS_GFMUX_CTL); + val &= (~(BIT(1))); + writel(val, qproc->q6_base + QDSP6SS_GFMUX_CTL); + + /* Clamp I/O - 11 */ + val = readl(qproc->q6_base + QDSP6SS_PWR_CTL); + val |= BIT(20); + writel(val, qproc->q6_base + QDSP6SS_PWR_CTL); + + /* Clamp WL - 12 */ + val = readl(qproc->q6_base + QDSP6SS_PWR_CTL); + val |= BIT(21); + writel(val, qproc->q6_base + QDSP6SS_PWR_CTL); + + /* Clear Erase standby - 13 */ + val = readl(qproc->q6_base + QDSP6SS_PWR_CTL); + val &= (~(BIT(18))); + writel(val, qproc->q6_base + QDSP6SS_PWR_CTL); + + /* Clear Sleep RTN - 14 */ + val = readl(qproc->q6_base + QDSP6SS_PWR_CTL); + val &= (~(BIT(19))); + writel(val, qproc->q6_base + QDSP6SS_PWR_CTL); + + /* turn off QDSP6 memory foot/head switch one bank at a time - 15*/ + for (i = 0; i < 20; i++) { + val = readl(qproc->q6_base + QDSP6SS_MEM_PWR_CTL); + val &= (~(BIT(i))); + writel(val, qproc->q6_base + QDSP6SS_MEM_PWR_CTL); + mdelay(1); + } + + /* Assert QMC memory RTN - 16 */ + val = readl(qproc->q6_base + QDSP6SS_PWR_CTL); + val |= BIT(22); + writel(val, qproc->q6_base + QDSP6SS_PWR_CTL); + + /* Turn off BHS - 17 */ + val = readl(qproc->q6_base + QDSP6SS_PWR_CTL); + val &= (~(BIT(24))); + writel(val, qproc->q6_base + QDSP6SS_PWR_CTL); + udelay(1); + /* Wait till BHS Reset is done */ + nretry = 0; + while (1) { + val = readl(qproc->q6_base + QDSP6SS_BHS_STATUS); + if (!(val & BHS_EN_REST_ACK)) + break; + mdelay(1); + nretry++; + if (nretry >= 10) { + pr_err("BHS_STATUS not OFF\n"); + break; + } + } + + /* HALT CLEAR - 18 */ + ret = regmap_update_bits(qproc->tcsr, qproc->halt_q6 + TCSR_Q6_HALTREQ, + 1, 0); + if (ret) + return ret; + + /* Enable Q6 Block reset - 19 */ + reset_control_assert(qproc->wcss_q6_reset); + + return 0; +} + +static int q6_rproc_stop(struct rproc *rproc) +{ + struct q6v5 *qproc = rproc->priv; + int ret = 0; + + qproc->running = false; + + /* WCSS powerdown */ + qcom_smem_state_update_bits(qproc->state, BIT(qproc->stop_bit), + BIT(qproc->stop_bit)); + + ret = wait_for_completion_timeout(&qproc->stop_done, + msecs_to_jiffies(5000)); + if (ret == 0) { + dev_err(qproc->dev, "timed out on wait\n"); + return -ETIMEDOUT; + } + + qcom_smem_state_update_bits(qproc->state, BIT(qproc->stop_bit), 0); + + ret = wcss_powerdown(qproc); + if (ret) + return ret; + + /* Q6 Power down */ + ret = q6_powerdown(qproc); + if (ret) + return ret; + + return 0; +} + +static int q6_rproc_start(struct rproc *rproc) +{ + struct q6v5 *qproc = rproc->priv; + int temp = 19; + unsigned long val = 0; + unsigned int nretry = 0; + int ret = 0; + + ret = q6v5_clk_enable(qproc); + if (ret) { + dev_err(qproc->dev, "failed to enable clocks\n"); + return ret; + } + + /* Release Q6 and WCSS reset */ + reset_control_deassert(qproc->wcss_reset); + reset_control_deassert(qproc->wcss_q6_reset); + + /* Lithium configuration - clock gating and bus arbitration */ + ret = regmap_update_bits(qproc->tcsr, + qproc->halt_gbl + TCSR_GLOBAL_CFG0, + 0x1F, 0x14); + if (ret) + return ret; + + ret = regmap_update_bits(qproc->tcsr, + qproc->halt_gbl + TCSR_GLOBAL_CFG1, + 1, 0); + if (ret) + return ret; + + /* Write bootaddr to EVB so that Q6WCSS will jump there after reset */ + writel(rproc->bootaddr >> 4, qproc->q6_base + QDSP6SS_RST_EVB); + /* Turn on XO clock. It is required for BHS and memory operation */ + writel(0x1, qproc->q6_base + QDSP6SS_XO_CBCR); + /* Turn on BHS */ + writel(0x1700000, qproc->q6_base + QDSP6SS_PWR_CTL); + udelay(1); + + /* Wait till BHS Reset is done */ + while (1) { + val = readl(qproc->q6_base + QDSP6SS_BHS_STATUS); + if (val & BHS_EN_REST_ACK) + break; + mdelay(1); + nretry++; + if (nretry >= 10) { + pr_err("BHS_STATUS not ON\n"); + break; + } + } + + /* Put LDO in bypass mode */ + writel(0x3700000, qproc->q6_base + QDSP6SS_PWR_CTL); + /* De-assert QDSP6 complier memory clamp */ + writel(0x3300000, qproc->q6_base + QDSP6SS_PWR_CTL); + /* De-assert memory peripheral sleep and L2 memory standby */ + writel(0x33c0000, qproc->q6_base + QDSP6SS_PWR_CTL); + + /* turn on QDSP6 memory foot/head switch one bank at a time */ + while (temp >= 0) { + val = readl(qproc->q6_base + QDSP6SS_MEM_PWR_CTL); + val = val | 1 << temp; + writel(val, qproc->q6_base + QDSP6SS_MEM_PWR_CTL); + val = readl(qproc->q6_base + QDSP6SS_MEM_PWR_CTL); + mdelay(10); + temp -= 1; + } + /* Remove the QDSP6 core memory word line clamp */ + writel(0x31FFFFF, qproc->q6_base + QDSP6SS_PWR_CTL); + /* Remove QDSP6 I/O clamp */ + writel(0x30FFFFF, qproc->q6_base + QDSP6SS_PWR_CTL); + + /* Bring Q6 out of reset and stop the core */ + writel(0x5, qproc->q6_base + QDSP6SS_RESET); + + /* Retain debugger state during next QDSP6 reset */ + writel(0x0, qproc->q6_base + QDSP6SS_DBG_CFG); + /* Turn on the QDSP6 core clock */ + writel(0x102, qproc->q6_base + QDSP6SS_GFMUX_CTL); + /* Enable the core to run */ + writel(0x4, qproc->q6_base + QDSP6SS_RESET); + + ret = wait_for_completion_timeout(&qproc->start_done, + msecs_to_jiffies(5000)); + if (ret == 0) { + dev_err(qproc->dev, "start timed out\n"); + return -ETIMEDOUT; + } + + qproc->running = true; + + return 0; +} + +static struct rproc_ops q6v5_rproc_ops = { + .start = q6_rproc_start, + .stop = q6_rproc_stop, +}; + +static struct rproc_fw_ops q6_fw_ops; + +static int q6v5_request_irq(struct q6v5 *qproc, + struct platform_device *pdev, + const char *name, + irq_handler_t thread_fn) +{ + int ret; + + ret = platform_get_irq_byname(pdev, name); + if (ret < 0) { + dev_err(&pdev->dev, "no %s IRQ defined\n", name); + return ret; + } + + ret = devm_request_threaded_irq(&pdev->dev, ret, + NULL, thread_fn, + IRQF_TRIGGER_RISING | IRQF_ONESHOT, + "q6v5", qproc); + if (ret) + dev_err(&pdev->dev, "request %s IRQ failed\n", name); + + return ret; +} + +static irqreturn_t q6v5_fatal_interrupt(int irq, void *dev) +{ + struct q6v5 *qproc = dev; + char *msg; + size_t len; + + if (!qproc->running) + return IRQ_HANDLED; + + msg = qcom_smem_get(QCOM_SMEM_HOST_ANY, WCSS_CRASH_REASON_SMEM, &len); + if (!IS_ERR(msg) && len > 0 && msg[0]) + dev_err(qproc->dev, "Fatal error from wcss: %s\n", msg); + else + dev_err(qproc->dev, "Fatal error received no message!\n"); + + rproc_report_crash(qproc->rproc, RPROC_FATAL_ERROR); + + if (!IS_ERR(msg)) + msg[0] = '\0'; + + return IRQ_HANDLED; +} + +static irqreturn_t q6v5_handover_interrupt(int irq, void *dev) +{ + struct q6v5 *qproc = dev; + + complete(&qproc->start_done); + return IRQ_HANDLED; +} + +static irqreturn_t q6v5_stop_ack_interrupt(int irq, void *dev) +{ + struct q6v5 *qproc = dev; + + complete(&qproc->stop_done); + return IRQ_HANDLED; +} + +static irqreturn_t q6v5_wdog_interrupt(int irq, void *dev) +{ + struct q6v5 *qproc = dev; + char *msg; + size_t len; + + if (!qproc->running) { + complete(&qproc->stop_done); + return IRQ_HANDLED; + } + + msg = qcom_smem_get(QCOM_SMEM_HOST_ANY, WCSS_CRASH_REASON_SMEM, &len); + if (!IS_ERR(msg) && len > 0 && msg[0]) + dev_err(qproc->dev, "Watchdog bite from wcss %s\n", msg); + else + dev_err(qproc->dev, "Watchdog bit received no message!\n"); + + rproc_report_crash(qproc->rproc, RPROC_WATCHDOG); + + if (!IS_ERR(msg)) + msg[0] = '\0'; + + return IRQ_HANDLED; +} + +static int q6v5_load(struct rproc *rproc, const struct firmware *fw) +{ + struct q6v5 *qproc = (struct q6v5 *)rproc->priv; + + return qcom_mdt_load(qproc->dev, fw, rproc->firmware, WCNSS_PAS_ID, + qproc->mem_region, qproc->mem_phys, + qproc->mem_size, false); +} + +static int q6_alloc_memory_region(struct q6v5 *qproc) +{ + struct device_node *node; + struct resource r; + int ret; + + node = of_parse_phandle(qproc->dev->of_node, "memory-region", 0); + if (!node) { + dev_err(qproc->dev, "no memory-region specified\n"); + return -EINVAL; + } + + ret = of_address_to_resource(node, 0, &r); + if (ret) + return ret; + + qproc->mem_phys = r.start; + qproc->mem_size = resource_size(&r); + qproc->mem_region = devm_ioremap_wc(qproc->dev, qproc->mem_phys, + qproc->mem_size); + if (!qproc->mem_region) { + dev_err(qproc->dev, "unable to map memory region: %pa+%zx\n", + &r.start, qproc->mem_size); + return -EBUSY; + } + + return 0; +} + +static int q6v5_init_mem(struct q6v5 *qproc, struct platform_device *pdev) +{ + struct of_phandle_args args; + struct resource *res; + int ret; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "mpm"); + if (IS_ERR_OR_NULL(res)) + return -ENODEV; + + qproc->mpm_base = ioremap(res->start, resource_size(res)); + if (IS_ERR_OR_NULL(qproc->mpm_base)) + return PTR_ERR(qproc->mpm_base); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "q6"); + if (IS_ERR_OR_NULL(res)) { + ret = -ENODEV; + goto free_mpm; + } + + qproc->q6_base = ioremap(res->start, resource_size(res)); + if (IS_ERR_OR_NULL(qproc->q6_base)) { + ret = PTR_ERR(qproc->q6_base); + goto free_mpm; + } + + ret = of_parse_phandle_with_fixed_args(pdev->dev.of_node, + "qcom,halt-regs", 3, + 0, &args); + if (ret < 0) + goto free_q6; + + qproc->tcsr = syscon_node_to_regmap(args.np); + of_node_put(args.np); + if (IS_ERR_OR_NULL(qproc->tcsr)) { + ret = PTR_ERR(qproc->tcsr); + goto free_q6; + } + + qproc->halt_gbl = args.args[0]; + qproc->halt_q6 = args.args[1]; + qproc->halt_wcss = args.args[2]; + + return 0; + +free_q6: + iounmap(qproc->q6_base); + +free_mpm: + iounmap(qproc->mpm_base); + + return ret; +} + +static int q6_rproc_probe(struct platform_device *pdev) +{ + struct q6v5 *qproc; + struct rproc *rproc; + int ret; + struct qcom_smem_state *state; + unsigned int stop_bit; + const char *firmware_name = of_device_get_match_data(&pdev->dev); + + state = qcom_smem_state_get(&pdev->dev, "stop", + &stop_bit); + if (IS_ERR(state)) + /* Wait till SMP2P is registered and up */ + return -EPROBE_DEFER; + + rproc = rproc_alloc(&pdev->dev, pdev->name, &q6v5_rproc_ops, + firmware_name, + sizeof(*qproc)); + if (unlikely(!rproc)) + return -ENOMEM; + + qproc = rproc->priv; + qproc->dev = &pdev->dev; + qproc->rproc = rproc; + rproc->has_iommu = false; + + q6_fw_ops = *rproc->fw_ops; + q6_fw_ops.find_rsc_table = q6v5_find_rsc_table; + q6_fw_ops.load = q6v5_load; + + q6v5_init_mem(qproc, pdev); + + qproc->wcss_aon_reset = devm_reset_control_get(&pdev->dev, + "wcss_aon_reset"); + if (IS_ERR(qproc->wcss_aon_reset)) + return PTR_ERR(qproc->wcss_aon_reset); + + qproc->wcss_reset = devm_reset_control_get(&pdev->dev, + "wcss_reset"); + if (IS_ERR(qproc->wcss_reset)) + return PTR_ERR(qproc->wcss_reset); + + qproc->wcss_q6_reset = devm_reset_control_get(&pdev->dev, + "wcss_q6_reset"); + if (IS_ERR(qproc->wcss_q6_reset)) + return PTR_ERR(qproc->wcss_q6_reset); + + platform_set_drvdata(pdev, qproc); + + rproc->fw_ops = &q6_fw_ops; + + qproc->state = qcom_smem_state_get(&pdev->dev, "stop", + &qproc->stop_bit); + if (IS_ERR(qproc->state)) { + pr_err("Can't get stop bit status fro SMP2P\n"); + goto free_rproc; + } + + qproc->state = qcom_smem_state_get(&pdev->dev, "shutdown", + &qproc->shutdown_bit); + if (IS_ERR(qproc->state)) { + pr_err("Can't get shutdown bit status fro SMP2P\n"); + goto free_rproc; + } + + ret = q6v5_init_clocks(&pdev->dev, qproc); + if (ret < 0) { + dev_err(&pdev->dev, "Failed to get active clocks.\n"); + goto free_rproc; + } + + ret = q6v5_request_irq(qproc, pdev, "wdog", q6v5_wdog_interrupt); + if (ret < 0) + goto free_rproc; + + ret = q6v5_request_irq(qproc, pdev, "fatal", q6v5_fatal_interrupt); + if (ret < 0) + goto free_rproc; + + ret = q6v5_request_irq(qproc, pdev, "handover", + q6v5_handover_interrupt); + if (ret < 0) + goto free_rproc; + + ret = q6v5_request_irq(qproc, pdev, "stop-ack", + q6v5_stop_ack_interrupt); + if (ret < 0) + goto free_rproc; + + init_completion(&qproc->start_done); + init_completion(&qproc->stop_done); + + ret = q6_alloc_memory_region(qproc); + if (ret < 0) + goto free_rproc; + + qcom_add_smd_subdev(rproc, &qproc->smd_subdev); + + ret = rproc_add(rproc); + if (ret) + goto free_rproc; + + qproc->running = false; + + return 0; + +free_rproc: + rproc_put(rproc); + return -EIO; +} + +static int q6_rproc_remove(struct platform_device *pdev) +{ + struct q6v5 *qproc; + struct rproc *rproc; + + qproc = platform_get_drvdata(pdev); + rproc = qproc->rproc; + + rproc_del(rproc); + rproc_put(rproc); + + return 0; +} + +static const struct of_device_id q6_match_table[] = { + { .compatible = "q6v5-wcss-pil", .data = "IPQ8074/q6_fw.mdt" }, + {} +}; +MODULE_DEVICE_TABLE(of, q6_match_table); + +static struct platform_driver q6_rproc_driver = { + .probe = q6_rproc_probe, + .remove = q6_rproc_remove, + .driver = { + .name = "q6v5-wcss", + .of_match_table = q6_match_table, + .owner = THIS_MODULE, + }, +}; +module_platform_driver(q6_rproc_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Qualcomm q6v5-wcss remote proc control driver"); -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html