remoteproc: qcom: Introduce Non-PAS ADSP PIL driver
This adds Non PAS ADSP PIL driver for Qualcomm Technologies Inc SoCs. Added initial support for SDM845 with ADSP bootup and shutdown operation handled from Application Processor SubSystem(APSS). Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Tested-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Rohit kumar <rohitkr@codeaurora.org> [bjorn: Renamed driver and Kconfig from qcom_adsp_pil to qcom_q6v5_adsp] Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>hifive-unleashed-5.1
Rohit kumar
Bjorn Andersson
parent
159accc4d0
commit
dc160e4491
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@ -92,6 +92,21 @@ config QCOM_Q6V5_COMMON
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depends on ARCH_QCOM
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depends on QCOM_SMEM
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config QCOM_Q6V5_ADSP
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tristate "Qualcomm Technology Inc ADSP Peripheral Image Loader"
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depends on OF && ARCH_QCOM
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depends on QCOM_SMEM
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depends on RPMSG_QCOM_SMD || (COMPILE_TEST && RPMSG_QCOM_SMD=n)
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depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
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depends on QCOM_SYSMON || QCOM_SYSMON=n
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select MFD_SYSCON
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select QCOM_MDT_LOADER
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select QCOM_Q6V5_COMMON
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select QCOM_RPROC_COMMON
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help
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Say y here to support the Peripheral Image Loader
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for the Qualcomm Technology Inc. ADSP remote processors.
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config QCOM_Q6V5_MSS
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tristate "Qualcomm Hexagon V5 self-authenticating modem subsystem support"
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depends on OF && ARCH_QCOM
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@ -16,6 +16,7 @@ obj-$(CONFIG_DA8XX_REMOTEPROC) += da8xx_remoteproc.o
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obj-$(CONFIG_KEYSTONE_REMOTEPROC) += keystone_remoteproc.o
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obj-$(CONFIG_QCOM_RPROC_COMMON) += qcom_common.o
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obj-$(CONFIG_QCOM_Q6V5_COMMON) += qcom_q6v5.o
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obj-$(CONFIG_QCOM_Q6V5_ADSP) += qcom_q6v5_adsp.o
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obj-$(CONFIG_QCOM_Q6V5_MSS) += qcom_q6v5_mss.o
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obj-$(CONFIG_QCOM_Q6V5_PAS) += qcom_q6v5_pas.o
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obj-$(CONFIG_QCOM_Q6V5_WCSS) += qcom_q6v5_wcss.o
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@ -0,0 +1,501 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Qualcomm Technology Inc. ADSP Peripheral Image Loader for SDM845.
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* Copyright (c) 2018, The Linux Foundation. All rights reserved.
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*/
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <linux/firmware.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/iopoll.h>
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#include <linux/kernel.h>
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#include <linux/mfd/syscon.h>
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#include <linux/module.h>
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#include <linux/of_address.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/pm_domain.h>
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#include <linux/pm_runtime.h>
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#include <linux/regmap.h>
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#include <linux/remoteproc.h>
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#include <linux/reset.h>
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#include <linux/soc/qcom/mdt_loader.h>
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#include <linux/soc/qcom/smem.h>
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#include <linux/soc/qcom/smem_state.h>
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#include "qcom_common.h"
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#include "qcom_q6v5.h"
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#include "remoteproc_internal.h"
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/* time out value */
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#define ACK_TIMEOUT 1000
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#define BOOT_FSM_TIMEOUT 10000
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/* mask values */
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#define EVB_MASK GENMASK(27, 4)
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/*QDSP6SS register offsets*/
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#define RST_EVB_REG 0x10
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#define CORE_START_REG 0x400
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#define BOOT_CMD_REG 0x404
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#define BOOT_STATUS_REG 0x408
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#define RET_CFG_REG 0x1C
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/*TCSR register offsets*/
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#define LPASS_MASTER_IDLE_REG 0x8
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#define LPASS_HALTACK_REG 0x4
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#define LPASS_PWR_ON_REG 0x10
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#define LPASS_HALTREQ_REG 0x0
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/* list of clocks required by ADSP PIL */
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static const char * const adsp_clk_id[] = {
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"sway_cbcr", "lpass_aon", "lpass_ahbs_aon_cbcr", "lpass_ahbm_aon_cbcr",
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"qdsp6ss_xo", "qdsp6ss_sleep", "qdsp6ss_core",
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};
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struct adsp_pil_data {
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int crash_reason_smem;
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const char *firmware_name;
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const char *ssr_name;
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const char *sysmon_name;
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int ssctl_id;
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};
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struct qcom_adsp {
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struct device *dev;
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struct rproc *rproc;
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struct qcom_q6v5 q6v5;
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struct clk *xo;
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int num_clks;
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struct clk_bulk_data *clks;
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void __iomem *qdsp6ss_base;
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struct reset_control *pdc_sync_reset;
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struct reset_control *cc_lpass_restart;
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struct regmap *halt_map;
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unsigned int halt_lpass;
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int crash_reason_smem;
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struct completion start_done;
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struct completion stop_done;
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phys_addr_t mem_phys;
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phys_addr_t mem_reloc;
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void *mem_region;
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size_t mem_size;
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struct qcom_rproc_glink glink_subdev;
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struct qcom_rproc_ssr ssr_subdev;
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struct qcom_sysmon *sysmon;
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};
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static int qcom_adsp_shutdown(struct qcom_adsp *adsp)
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{
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unsigned long timeout;
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unsigned int val;
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int ret;
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/* Reset the retention logic */
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val = readl(adsp->qdsp6ss_base + RET_CFG_REG);
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val |= 0x1;
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writel(val, adsp->qdsp6ss_base + RET_CFG_REG);
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clk_bulk_disable_unprepare(adsp->num_clks, adsp->clks);
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/* QDSP6 master port needs to be explicitly halted */
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ret = regmap_read(adsp->halt_map,
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adsp->halt_lpass + LPASS_PWR_ON_REG, &val);
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if (ret || !val)
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goto reset;
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ret = regmap_read(adsp->halt_map,
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adsp->halt_lpass + LPASS_MASTER_IDLE_REG,
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&val);
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if (ret || val)
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goto reset;
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regmap_write(adsp->halt_map,
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adsp->halt_lpass + LPASS_HALTREQ_REG, 1);
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/* Wait for halt ACK from QDSP6 */
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timeout = jiffies + msecs_to_jiffies(ACK_TIMEOUT);
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for (;;) {
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ret = regmap_read(adsp->halt_map,
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adsp->halt_lpass + LPASS_HALTACK_REG, &val);
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if (ret || val || time_after(jiffies, timeout))
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break;
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usleep_range(1000, 1100);
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}
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ret = regmap_read(adsp->halt_map,
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adsp->halt_lpass + LPASS_MASTER_IDLE_REG, &val);
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if (ret || !val)
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dev_err(adsp->dev, "port failed halt\n");
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reset:
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/* Assert the LPASS PDC Reset */
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reset_control_assert(adsp->pdc_sync_reset);
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/* Place the LPASS processor into reset */
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reset_control_assert(adsp->cc_lpass_restart);
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/* wait after asserting subsystem restart from AOSS */
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usleep_range(200, 300);
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/* Clear the halt request for the AXIM and AHBM for Q6 */
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regmap_write(adsp->halt_map, adsp->halt_lpass + LPASS_HALTREQ_REG, 0);
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/* De-assert the LPASS PDC Reset */
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reset_control_deassert(adsp->pdc_sync_reset);
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/* Remove the LPASS reset */
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reset_control_deassert(adsp->cc_lpass_restart);
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/* wait after de-asserting subsystem restart from AOSS */
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usleep_range(200, 300);
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return 0;
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}
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static int adsp_load(struct rproc *rproc, const struct firmware *fw)
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{
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struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
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return qcom_mdt_load_no_init(adsp->dev, fw, rproc->firmware, 0,
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adsp->mem_region, adsp->mem_phys, adsp->mem_size,
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&adsp->mem_reloc);
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}
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static int adsp_start(struct rproc *rproc)
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{
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struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
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int ret;
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unsigned int val;
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qcom_q6v5_prepare(&adsp->q6v5);
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ret = clk_prepare_enable(adsp->xo);
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if (ret)
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goto disable_irqs;
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dev_pm_genpd_set_performance_state(adsp->dev, INT_MAX);
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ret = pm_runtime_get_sync(adsp->dev);
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if (ret)
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goto disable_xo_clk;
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ret = clk_bulk_prepare_enable(adsp->num_clks, adsp->clks);
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if (ret) {
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dev_err(adsp->dev, "adsp clk_enable failed\n");
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goto disable_power_domain;
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}
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/* Program boot address */
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writel(adsp->mem_phys >> 4, adsp->qdsp6ss_base + RST_EVB_REG);
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/* De-assert QDSP6 stop core. QDSP6 will execute after out of reset */
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writel(0x1, adsp->qdsp6ss_base + CORE_START_REG);
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/* Trigger boot FSM to start QDSP6 */
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writel(0x1, adsp->qdsp6ss_base + BOOT_CMD_REG);
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/* Wait for core to come out of reset */
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ret = readl_poll_timeout(adsp->qdsp6ss_base + BOOT_STATUS_REG,
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val, (val & BIT(0)) != 0, 10, BOOT_FSM_TIMEOUT);
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if (ret) {
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dev_err(adsp->dev, "failed to bootup adsp\n");
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goto disable_adsp_clks;
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}
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ret = qcom_q6v5_wait_for_start(&adsp->q6v5, msecs_to_jiffies(5 * HZ));
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if (ret == -ETIMEDOUT) {
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dev_err(adsp->dev, "start timed out\n");
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goto disable_adsp_clks;
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}
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return 0;
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disable_adsp_clks:
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clk_bulk_disable_unprepare(adsp->num_clks, adsp->clks);
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disable_power_domain:
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dev_pm_genpd_set_performance_state(adsp->dev, 0);
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pm_runtime_put(adsp->dev);
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disable_xo_clk:
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clk_disable_unprepare(adsp->xo);
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disable_irqs:
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qcom_q6v5_unprepare(&adsp->q6v5);
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return ret;
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}
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static void qcom_adsp_pil_handover(struct qcom_q6v5 *q6v5)
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{
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struct qcom_adsp *adsp = container_of(q6v5, struct qcom_adsp, q6v5);
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clk_disable_unprepare(adsp->xo);
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dev_pm_genpd_set_performance_state(adsp->dev, 0);
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pm_runtime_put(adsp->dev);
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}
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static int adsp_stop(struct rproc *rproc)
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{
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struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
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int handover;
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int ret;
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ret = qcom_q6v5_request_stop(&adsp->q6v5);
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if (ret == -ETIMEDOUT)
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dev_err(adsp->dev, "timed out on wait\n");
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ret = qcom_adsp_shutdown(adsp);
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if (ret)
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dev_err(adsp->dev, "failed to shutdown: %d\n", ret);
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handover = qcom_q6v5_unprepare(&adsp->q6v5);
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if (handover)
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qcom_adsp_pil_handover(&adsp->q6v5);
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return ret;
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}
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static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
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{
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struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
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int offset;
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offset = da - adsp->mem_reloc;
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if (offset < 0 || offset + len > adsp->mem_size)
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return NULL;
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return adsp->mem_region + offset;
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}
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static const struct rproc_ops adsp_ops = {
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.start = adsp_start,
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.stop = adsp_stop,
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.da_to_va = adsp_da_to_va,
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.parse_fw = qcom_register_dump_segments,
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.load = adsp_load,
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};
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static int adsp_init_clock(struct qcom_adsp *adsp)
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{
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int i, ret;
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adsp->xo = devm_clk_get(adsp->dev, "xo");
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if (IS_ERR(adsp->xo)) {
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ret = PTR_ERR(adsp->xo);
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if (ret != -EPROBE_DEFER)
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dev_err(adsp->dev, "failed to get xo clock");
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return ret;
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}
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adsp->num_clks = ARRAY_SIZE(adsp_clk_id);
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adsp->clks = devm_kcalloc(adsp->dev, adsp->num_clks,
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sizeof(*adsp->clks), GFP_KERNEL);
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if (IS_ERR(adsp->clks)) {
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ret = PTR_ERR(adsp->clks);
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if (ret != -EPROBE_DEFER)
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dev_err(adsp->dev, "failed to get adsp clock");
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return ret;
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}
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for (i = 0; i < adsp->num_clks; i++)
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adsp->clks[i].id = adsp_clk_id[i];
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return devm_clk_bulk_get(adsp->dev, adsp->num_clks, adsp->clks);
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}
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static int adsp_init_reset(struct qcom_adsp *adsp)
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{
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adsp->pdc_sync_reset = devm_reset_control_get_exclusive(adsp->dev,
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"pdc_sync");
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if (IS_ERR(adsp->pdc_sync_reset)) {
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dev_err(adsp->dev, "failed to acquire pdc_sync reset\n");
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return PTR_ERR(adsp->pdc_sync_reset);
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}
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adsp->cc_lpass_restart = devm_reset_control_get_exclusive(adsp->dev,
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"cc_lpass");
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if (IS_ERR(adsp->cc_lpass_restart)) {
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dev_err(adsp->dev, "failed to acquire cc_lpass restart\n");
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return PTR_ERR(adsp->cc_lpass_restart);
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}
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return 0;
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}
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static int adsp_init_mmio(struct qcom_adsp *adsp,
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struct platform_device *pdev)
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{
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struct device_node *syscon;
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struct resource *res;
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int ret;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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adsp->qdsp6ss_base = devm_ioremap(&pdev->dev, res->start,
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resource_size(res));
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if (IS_ERR(adsp->qdsp6ss_base)) {
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dev_err(adsp->dev, "failed to map QDSP6SS registers\n");
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return PTR_ERR(adsp->qdsp6ss_base);
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}
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syscon = of_parse_phandle(pdev->dev.of_node, "qcom,halt-regs", 0);
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if (!syscon) {
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dev_err(&pdev->dev, "failed to parse qcom,halt-regs\n");
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return -EINVAL;
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}
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adsp->halt_map = syscon_node_to_regmap(syscon);
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of_node_put(syscon);
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if (IS_ERR(adsp->halt_map))
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return PTR_ERR(adsp->halt_map);
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ret = of_property_read_u32_index(pdev->dev.of_node, "qcom,halt-regs",
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1, &adsp->halt_lpass);
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if (ret < 0) {
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dev_err(&pdev->dev, "no offset in syscon\n");
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return ret;
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}
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return 0;
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}
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static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
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{
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struct device_node *node;
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struct resource r;
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int ret;
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node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0);
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if (!node) {
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dev_err(adsp->dev, "no memory-region specified\n");
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return -EINVAL;
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}
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ret = of_address_to_resource(node, 0, &r);
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if (ret)
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return ret;
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adsp->mem_phys = adsp->mem_reloc = r.start;
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adsp->mem_size = resource_size(&r);
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adsp->mem_region = devm_ioremap_wc(adsp->dev,
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adsp->mem_phys, adsp->mem_size);
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if (!adsp->mem_region) {
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dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n",
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&r.start, adsp->mem_size);
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return -EBUSY;
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}
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return 0;
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}
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static int adsp_probe(struct platform_device *pdev)
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{
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const struct adsp_pil_data *desc;
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struct qcom_adsp *adsp;
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struct rproc *rproc;
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int ret;
|
||||
|
||||
desc = of_device_get_match_data(&pdev->dev);
|
||||
if (!desc)
|
||||
return -EINVAL;
|
||||
|
||||
rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
|
||||
desc->firmware_name, sizeof(*adsp));
|
||||
if (!rproc) {
|
||||
dev_err(&pdev->dev, "unable to allocate remoteproc\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
adsp = (struct qcom_adsp *)rproc->priv;
|
||||
adsp->dev = &pdev->dev;
|
||||
adsp->rproc = rproc;
|
||||
platform_set_drvdata(pdev, adsp);
|
||||
|
||||
ret = adsp_alloc_memory_region(adsp);
|
||||
if (ret)
|
||||
goto free_rproc;
|
||||
|
||||
ret = adsp_init_clock(adsp);
|
||||
if (ret)
|
||||
goto free_rproc;
|
||||
|
||||
pm_runtime_enable(adsp->dev);
|
||||
|
||||
ret = adsp_init_reset(adsp);
|
||||
if (ret)
|
||||
goto disable_pm;
|
||||
|
||||
ret = adsp_init_mmio(adsp, pdev);
|
||||
if (ret)
|
||||
goto disable_pm;
|
||||
|
||||
ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem,
|
||||
qcom_adsp_pil_handover);
|
||||
if (ret)
|
||||
goto disable_pm;
|
||||
|
||||
qcom_add_glink_subdev(rproc, &adsp->glink_subdev);
|
||||
qcom_add_ssr_subdev(rproc, &adsp->ssr_subdev, desc->ssr_name);
|
||||
adsp->sysmon = qcom_add_sysmon_subdev(rproc,
|
||||
desc->sysmon_name,
|
||||
desc->ssctl_id);
|
||||
|
||||
ret = rproc_add(rproc);
|
||||
if (ret)
|
||||
goto disable_pm;
|
||||
|
||||
return 0;
|
||||
|
||||
disable_pm:
|
||||
pm_runtime_disable(adsp->dev);
|
||||
free_rproc:
|
||||
rproc_free(rproc);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int adsp_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct qcom_adsp *adsp = platform_get_drvdata(pdev);
|
||||
|
||||
rproc_del(adsp->rproc);
|
||||
|
||||
qcom_remove_glink_subdev(adsp->rproc, &adsp->glink_subdev);
|
||||
qcom_remove_sysmon_subdev(adsp->sysmon);
|
||||
qcom_remove_ssr_subdev(adsp->rproc, &adsp->ssr_subdev);
|
||||
pm_runtime_disable(adsp->dev);
|
||||
rproc_free(adsp->rproc);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct adsp_pil_data adsp_resource_init = {
|
||||
.crash_reason_smem = 423,
|
||||
.firmware_name = "adsp.mdt",
|
||||
.ssr_name = "lpass",
|
||||
.sysmon_name = "adsp",
|
||||
.ssctl_id = 0x14,
|
||||
};
|
||||
|
||||
static const struct of_device_id adsp_of_match[] = {
|
||||
{ .compatible = "qcom,sdm845-adsp-pil", .data = &adsp_resource_init },
|
||||
{ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, adsp_of_match);
|
||||
|
||||
static struct platform_driver adsp_pil_driver = {
|
||||
.probe = adsp_probe,
|
||||
.remove = adsp_remove,
|
||||
.driver = {
|
||||
.name = "qcom_q6v5_adsp",
|
||||
.of_match_table = adsp_of_match,
|
||||
},
|
||||
};
|
||||
|
||||
module_platform_driver(adsp_pil_driver);
|
||||
MODULE_DESCRIPTION("QTI SDM845 ADSP Peripheral Image Loader");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
Loading…
Reference in New Issue