Merge tag 'powerpc-5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
[linux-2.6-microblaze.git] / drivers / remoteproc / qcom_q6v5_mss.c
index 01be731..eacdf10 100644 (file)
@@ -25,6 +25,8 @@
 #include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/remoteproc.h>
@@ -131,6 +133,8 @@ struct rproc_hexagon_res {
        char **proxy_clk_names;
        char **reset_clk_names;
        char **active_clk_names;
+       char **active_pd_names;
+       char **proxy_pd_names;
        int version;
        bool need_mem_protection;
        bool has_alt_reset;
@@ -156,9 +160,13 @@ struct q6v5 {
        struct clk *active_clks[8];
        struct clk *reset_clks[4];
        struct clk *proxy_clks[4];
+       struct device *active_pds[1];
+       struct device *proxy_pds[3];
        int active_clk_count;
        int reset_clk_count;
        int proxy_clk_count;
+       int active_pd_count;
+       int proxy_pd_count;
 
        struct reg_info active_regs[1];
        struct reg_info proxy_regs[3];
@@ -188,6 +196,7 @@ struct q6v5 {
        bool has_alt_reset;
        int mpss_perm;
        int mba_perm;
+       const char *hexagon_mdt_image;
        int version;
 };
 
@@ -321,6 +330,41 @@ static void q6v5_clk_disable(struct device *dev,
                clk_disable_unprepare(clks[i]);
 }
 
+static int q6v5_pds_enable(struct q6v5 *qproc, struct device **pds,
+                          size_t pd_count)
+{
+       int ret;
+       int i;
+
+       for (i = 0; i < pd_count; i++) {
+               dev_pm_genpd_set_performance_state(pds[i], INT_MAX);
+               ret = pm_runtime_get_sync(pds[i]);
+               if (ret < 0)
+                       goto unroll_pd_votes;
+       }
+
+       return 0;
+
+unroll_pd_votes:
+       for (i--; i >= 0; i--) {
+               dev_pm_genpd_set_performance_state(pds[i], 0);
+               pm_runtime_put(pds[i]);
+       }
+
+       return ret;
+};
+
+static void q6v5_pds_disable(struct q6v5 *qproc, struct device **pds,
+                            size_t pd_count)
+{
+       int i;
+
+       for (i = 0; i < pd_count; i++) {
+               dev_pm_genpd_set_performance_state(pds[i], 0);
+               pm_runtime_put(pds[i]);
+       }
+}
+
 static int q6v5_xfer_mem_ownership(struct q6v5 *qproc, int *current_perm,
                                   bool remote_owner, phys_addr_t addr,
                                   size_t size)
@@ -690,11 +734,23 @@ static int q6v5_mba_load(struct q6v5 *qproc)
 
        qcom_q6v5_prepare(&qproc->q6v5);
 
+       ret = q6v5_pds_enable(qproc, qproc->active_pds, qproc->active_pd_count);
+       if (ret < 0) {
+               dev_err(qproc->dev, "failed to enable active power domains\n");
+               goto disable_irqs;
+       }
+
+       ret = q6v5_pds_enable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+       if (ret < 0) {
+               dev_err(qproc->dev, "failed to enable proxy power domains\n");
+               goto disable_active_pds;
+       }
+
        ret = q6v5_regulator_enable(qproc, qproc->proxy_regs,
                                    qproc->proxy_reg_count);
        if (ret) {
                dev_err(qproc->dev, "failed to enable proxy supplies\n");
-               goto disable_irqs;
+               goto disable_proxy_pds;
        }
 
        ret = q6v5_clk_enable(qproc->dev, qproc->proxy_clks,
@@ -791,6 +847,10 @@ disable_proxy_clk:
 disable_proxy_reg:
        q6v5_regulator_disable(qproc, qproc->proxy_regs,
                               qproc->proxy_reg_count);
+disable_proxy_pds:
+       q6v5_pds_disable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+disable_active_pds:
+       q6v5_pds_disable(qproc, qproc->active_pds, qproc->active_pd_count);
 disable_irqs:
        qcom_q6v5_unprepare(&qproc->q6v5);
 
@@ -830,6 +890,7 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc)
                         qproc->active_clk_count);
        q6v5_regulator_disable(qproc, qproc->active_regs,
                               qproc->active_reg_count);
+       q6v5_pds_disable(qproc, qproc->active_pds, qproc->active_pd_count);
 
        /* In case of failure or coredump scenario where reclaiming MBA memory
         * could not happen reclaim it here.
@@ -841,6 +902,8 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc)
 
        ret = qcom_q6v5_unprepare(&qproc->q6v5);
        if (ret) {
+               q6v5_pds_disable(qproc, qproc->proxy_pds,
+                                qproc->proxy_pd_count);
                q6v5_clk_disable(qproc->dev, qproc->proxy_clks,
                                 qproc->proxy_clk_count);
                q6v5_regulator_disable(qproc, qproc->proxy_regs,
@@ -860,17 +923,26 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
        phys_addr_t min_addr = PHYS_ADDR_MAX;
        phys_addr_t max_addr = 0;
        bool relocate = false;
-       char seg_name[10];
+       char *fw_name;
+       size_t fw_name_len;
        ssize_t offset;
        size_t size = 0;
        void *ptr;
        int ret;
        int i;
 
-       ret = request_firmware(&fw, "modem.mdt", qproc->dev);
+       fw_name_len = strlen(qproc->hexagon_mdt_image);
+       if (fw_name_len <= 4)
+               return -EINVAL;
+
+       fw_name = kstrdup(qproc->hexagon_mdt_image, GFP_KERNEL);
+       if (!fw_name)
+               return -ENOMEM;
+
+       ret = request_firmware(&fw, fw_name, qproc->dev);
        if (ret < 0) {
-               dev_err(qproc->dev, "unable to load modem.mdt\n");
-               return ret;
+               dev_err(qproc->dev, "unable to load %s\n", fw_name);
+               goto out;
        }
 
        /* Initialize the RMB validator */
@@ -918,10 +990,11 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
                ptr = qproc->mpss_region + offset;
 
                if (phdr->p_filesz) {
-                       snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i);
-                       ret = request_firmware(&seg_fw, seg_name, qproc->dev);
+                       /* Replace "xxx.xxx" with "xxx.bxx" */
+                       sprintf(fw_name + fw_name_len - 3, "b%02d", i);
+                       ret = request_firmware(&seg_fw, fw_name, qproc->dev);
                        if (ret) {
-                               dev_err(qproc->dev, "failed to load %s\n", seg_name);
+                               dev_err(qproc->dev, "failed to load %s\n", fw_name);
                                goto release_firmware;
                        }
 
@@ -960,6 +1033,8 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
 
 release_firmware:
        release_firmware(fw);
+out:
+       kfree(fw_name);
 
        return ret < 0 ? ret : 0;
 }
@@ -1075,9 +1150,10 @@ static int qcom_q6v5_register_dump_segments(struct rproc *rproc,
        unsigned long i;
        int ret;
 
-       ret = request_firmware(&fw, "modem.mdt", qproc->dev);
+       ret = request_firmware(&fw, qproc->hexagon_mdt_image, qproc->dev);
        if (ret < 0) {
-               dev_err(qproc->dev, "unable to load modem.mdt\n");
+               dev_err(qproc->dev, "unable to load %s\n",
+                       qproc->hexagon_mdt_image);
                return ret;
        }
 
@@ -1121,6 +1197,7 @@ static void qcom_msa_handover(struct qcom_q6v5 *q6v5)
                         qproc->proxy_clk_count);
        q6v5_regulator_disable(qproc, qproc->proxy_regs,
                               qproc->proxy_reg_count);
+       q6v5_pds_disable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
 }
 
 static int q6v5_init_mem(struct q6v5 *qproc, struct platform_device *pdev)
@@ -1181,6 +1258,45 @@ static int q6v5_init_clocks(struct device *dev, struct clk **clks,
        return i;
 }
 
+static int q6v5_pds_attach(struct device *dev, struct device **devs,
+                          char **pd_names)
+{
+       size_t num_pds = 0;
+       int ret;
+       int i;
+
+       if (!pd_names)
+               return 0;
+
+       while (pd_names[num_pds])
+               num_pds++;
+
+       for (i = 0; i < num_pds; i++) {
+               devs[i] = dev_pm_domain_attach_by_name(dev, pd_names[i]);
+               if (IS_ERR(devs[i])) {
+                       ret = PTR_ERR(devs[i]);
+                       goto unroll_attach;
+               }
+       }
+
+       return num_pds;
+
+unroll_attach:
+       for (i--; i >= 0; i--)
+               dev_pm_domain_detach(devs[i], false);
+
+       return ret;
+};
+
+static void q6v5_pds_detach(struct q6v5 *qproc, struct device **pds,
+                           size_t pd_count)
+{
+       int i;
+
+       for (i = 0; i < pd_count; i++)
+               dev_pm_domain_detach(pds[i], false);
+}
+
 static int q6v5_init_reset(struct q6v5 *qproc)
 {
        qproc->mss_restart = devm_reset_control_get_exclusive(qproc->dev,
@@ -1253,6 +1369,7 @@ static int q6v5_probe(struct platform_device *pdev)
        const struct rproc_hexagon_res *desc;
        struct q6v5 *qproc;
        struct rproc *rproc;
+       const char *mba_image;
        int ret;
 
        desc = of_device_get_match_data(&pdev->dev);
@@ -1262,16 +1379,30 @@ static int q6v5_probe(struct platform_device *pdev)
        if (desc->need_mem_protection && !qcom_scm_is_available())
                return -EPROBE_DEFER;
 
+       mba_image = desc->hexagon_mba_image;
+       ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name",
+                                           0, &mba_image);
+       if (ret < 0 && ret != -EINVAL)
+               return ret;
+
        rproc = rproc_alloc(&pdev->dev, pdev->name, &q6v5_ops,
-                           desc->hexagon_mba_image, sizeof(*qproc));
+                           mba_image, sizeof(*qproc));
        if (!rproc) {
                dev_err(&pdev->dev, "failed to allocate rproc\n");
                return -ENOMEM;
        }
 
+       rproc->auto_boot = false;
+
        qproc = (struct q6v5 *)rproc->priv;
        qproc->dev = &pdev->dev;
        qproc->rproc = rproc;
+       qproc->hexagon_mdt_image = "modem.mdt";
+       ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name",
+                                           1, &qproc->hexagon_mdt_image);
+       if (ret < 0 && ret != -EINVAL)
+               return ret;
+
        platform_set_drvdata(pdev, qproc);
 
        ret = q6v5_init_mem(qproc, pdev);
@@ -1322,10 +1453,26 @@ static int q6v5_probe(struct platform_device *pdev)
        }
        qproc->active_reg_count = ret;
 
+       ret = q6v5_pds_attach(&pdev->dev, qproc->active_pds,
+                             desc->active_pd_names);
+       if (ret < 0) {
+               dev_err(&pdev->dev, "Failed to attach active power domains\n");
+               goto free_rproc;
+       }
+       qproc->active_pd_count = ret;
+
+       ret = q6v5_pds_attach(&pdev->dev, qproc->proxy_pds,
+                             desc->proxy_pd_names);
+       if (ret < 0) {
+               dev_err(&pdev->dev, "Failed to init power domains\n");
+               goto detach_active_pds;
+       }
+       qproc->proxy_pd_count = ret;
+
        qproc->has_alt_reset = desc->has_alt_reset;
        ret = q6v5_init_reset(qproc);
        if (ret)
-               goto free_rproc;
+               goto detach_proxy_pds;
 
        qproc->version = desc->version;
        qproc->need_mem_protection = desc->need_mem_protection;
@@ -1333,7 +1480,7 @@ static int q6v5_probe(struct platform_device *pdev)
        ret = qcom_q6v5_init(&qproc->q6v5, pdev, rproc, MPSS_CRASH_REASON_SMEM,
                             qcom_msa_handover);
        if (ret)
-               goto free_rproc;
+               goto detach_proxy_pds;
 
        qproc->mpss_perm = BIT(QCOM_SCM_VMID_HLOS);
        qproc->mba_perm = BIT(QCOM_SCM_VMID_HLOS);
@@ -1341,13 +1488,21 @@ static int q6v5_probe(struct platform_device *pdev)
        qcom_add_smd_subdev(rproc, &qproc->smd_subdev);
        qcom_add_ssr_subdev(rproc, &qproc->ssr_subdev, "mpss");
        qproc->sysmon = qcom_add_sysmon_subdev(rproc, "modem", 0x12);
+       if (IS_ERR(qproc->sysmon)) {
+               ret = PTR_ERR(qproc->sysmon);
+               goto detach_proxy_pds;
+       }
 
        ret = rproc_add(rproc);
        if (ret)
-               goto free_rproc;
+               goto detach_proxy_pds;
 
        return 0;
 
+detach_proxy_pds:
+       q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+detach_active_pds:
+       q6v5_pds_detach(qproc, qproc->active_pds, qproc->active_pd_count);
 free_rproc:
        rproc_free(rproc);
 
@@ -1364,6 +1519,10 @@ static int q6v5_remove(struct platform_device *pdev)
        qcom_remove_glink_subdev(qproc->rproc, &qproc->glink_subdev);
        qcom_remove_smd_subdev(qproc->rproc, &qproc->smd_subdev);
        qcom_remove_ssr_subdev(qproc->rproc, &qproc->ssr_subdev);
+
+       q6v5_pds_detach(qproc, qproc->active_pds, qproc->active_pd_count);
+       q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+
        rproc_free(qproc->rproc);
 
        return 0;
@@ -1388,6 +1547,16 @@ static const struct rproc_hexagon_res sdm845_mss = {
                        "mnoc_axi",
                        NULL
        },
+       .active_pd_names = (char*[]){
+                       "load_state",
+                       NULL
+       },
+       .proxy_pd_names = (char*[]){
+                       "cx",
+                       "mx",
+                       "mss",
+                       NULL
+       },
        .need_mem_protection = true,
        .has_alt_reset = true,
        .version = MSS_SDM845,
@@ -1395,16 +1564,26 @@ static const struct rproc_hexagon_res sdm845_mss = {
 
 static const struct rproc_hexagon_res msm8996_mss = {
        .hexagon_mba_image = "mba.mbn",
+       .proxy_supply = (struct qcom_mss_reg_res[]) {
+               {
+                       .supply = "pll",
+                       .uA = 100000,
+               },
+               {}
+       },
        .proxy_clk_names = (char*[]){
                        "xo",
                        "pnoc",
+                       "qdss",
                        NULL
        },
        .active_clk_names = (char*[]){
                        "iface",
                        "bus",
                        "mem",
-                       "gpll0_mss_clk",
+                       "gpll0_mss",
+                       "snoc_axi",
+                       "mnoc_axi",
                        NULL
        },
        .need_mem_protection = true,