Merge tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg Kroah-Hartman:
 "Here's the driver core, and other driver subsystems, pull request for
  the 3.5-rc1 merge window.

  Outside of a few minor driver core changes, we ended up with the
  following different subsystem and core changes as well, due to
  interdependancies on the driver core:
   - hyperv driver updates
   - drivers/memory being created and some drivers moved into it
   - extcon driver subsystem created out of the old Android staging
     switch driver code
   - dynamic debug updates
   - printk rework, and /dev/kmsg changes

  All of this has been tested in the linux-next releases for a few weeks
  with no reported problems.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

Fix up conflicts in drivers/extcon/extcon-max8997.c where git noticed
that a patch to the deleted drivers/misc/max8997-muic.c driver needs to
be applied to this one.

* tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (90 commits)
  uio_pdrv_genirq: get irq through platform resource if not set otherwise
  memory: tegra{20,30}-mc: Remove empty *_remove()
  printk() - isolate KERN_CONT users from ordinary complete lines
  sysfs: get rid of some lockdep false positives
  Drivers: hv: util: Properly handle version negotiations.
  Drivers: hv: Get rid of an unnecessary check in vmbus_prep_negotiate_resp()
  memory: tegra{20,30}-mc: Use dev_err_ratelimited()
  driver core: Add dev_*_ratelimited() family
  Driver Core: don't oops with unregistered driver in driver_find_device()
  printk() - restore prefix/timestamp printing for multi-newline strings
  printk: add stub for prepend_timestamp()
  ARM: tegra30: Make MC optional in Kconfig
  ARM: tegra20: Make MC optional in Kconfig
  ARM: tegra30: MC: Remove unnecessary BUG*()
  ARM: tegra20: MC: Remove unnecessary BUG*()
  printk: correctly align __log_buf
  ARM: tegra30: Add Tegra Memory Controller(MC) driver
  ARM: tegra20: Add Tegra Memory Controller(MC) driver
  printk() - restore timestamp printing at console output
  printk() - do not merge continuation lines of different threads
  ...

6 files changed, 295 insertions, 87 deletions

diff --git a/lib/Kconfig b/lib/Kconfig
index 4a8aba2e5cc0..0e25c03939e3 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -353,6 +353,14 @@ config CORDIC
           This option provides an implementation of the CORDIC algorithm;
           calculations are in fixed point. Module will be called cordic.
 
+config DDR
+        bool "JEDEC DDR data"
+        help
+          Data from JEDEC specs for DDR SDRAM memories,
+          particularly the AC timing parameters and addressing
+          information. This data is useful for drivers handling
+          DDR SDRAM controllers.
+
 config MPILIB
         tristate
         select CLZ_TAB
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 6777153f18f3..e11934177030 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -3,12 +3,16 @@ config PRINTK_TIME
         bool "Show timing information on printks"
         depends on PRINTK
         help
-          Selecting this option causes timing information to be
-          included in printk output.  This allows you to measure
-          the interval between kernel operations, including bootup
-          operations.  This is useful for identifying long delays
-          in kernel startup.  Or add printk.time=1 at boot-time.
-          See Documentation/kernel-parameters.txt
+          Selecting this option causes time stamps of the printk()
+          messages to be added to the output of the syslog() system
+          call and at the console.
+
+          The timestamp is always recorded internally, and exported
+          to /dev/kmsg. This flag just specifies if the timestamp should
+          be included, not that the timestamp is recorded.
+
+          The behavior is also controlled by the kernel command line
+          parameter printk.time=1. See Documentation/kernel-parameters.txt
 
 config DEFAULT_MESSAGE_LOGLEVEL
         int "Default message log level (1-7)"
@@ -1205,8 +1209,13 @@ config DYNAMIC_DEBUG
           otherwise be available at runtime. These messages can then be
           enabled/disabled based on various levels of scope - per source file,
           function, module, format string, and line number. This mechanism
-          implicitly enables all pr_debug() and dev_dbg() calls. The impact of
-          this compile option is a larger kernel text size of about 2%.
+          implicitly compiles in all pr_debug() and dev_dbg() calls, which
+          enlarges the kernel text size by about 2%.
+
+          If a source file is compiled with DEBUG flag set, any
+          pr_debug() calls in it are enabled by default, but can be
+          disabled at runtime as below.  Note that DEBUG flag is
+          turned on by many CONFIG_*DEBUG* options.
 
           Usage:
 
@@ -1223,16 +1232,16 @@ config DYNAMIC_DEBUG
           lineno : line number of the debug statement
           module : module that contains the debug statement
           function : function that contains the debug statement
-          flags : 'p' means the line is turned 'on' for printing
+          flags : '=p' means the line is turned 'on' for printing
           format : the format used for the debug statement
 
           From a live system:
 
                 nullarbor:~ # cat <debugfs>/dynamic_debug/control
                 # filename:lineno [module]function flags format
-                fs/aio.c:222 [aio]__put_ioctx - "__put_ioctx:\040freeing\040%p\012"
-                fs/aio.c:248 [aio]ioctx_alloc - "ENOMEM:\040nr_events\040too\040high\012"
-                fs/aio.c:1770 [aio]sys_io_cancel - "calling\040cancel\012"
+                fs/aio.c:222 [aio]__put_ioctx =_ "__put_ioctx:\040freeing\040%p\012"
+                fs/aio.c:248 [aio]ioctx_alloc =_ "ENOMEM:\040nr_events\040too\040high\012"
+                fs/aio.c:1770 [aio]sys_io_cancel =_ "calling\040cancel\012"
 
           Example usage:
 
diff --git a/lib/Makefile b/lib/Makefile
index 18515f0267c4..74290c9e2864 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -123,6 +123,8 @@ obj-$(CONFIG_SIGNATURE) += digsig.o
 
 obj-$(CONFIG_CLZ_TAB) += clz_tab.o
 
+obj-$(CONFIG_DDR) += jedec_ddr_data.o
+
 hostprogs-y     := gen_crc32table
 clean-files     := crc32table.h
 
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 310c753cf83e..7ca29a0a3019 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -107,20 +107,22 @@ static char *ddebug_describe_flags(struct _ddebug *dp, char *buf,
         return buf;
 }
 
-#define vpr_info_dq(q, msg)                                             \
-do {                                                                    \
-        if (verbose)                                                    \
-                /* trim last char off format print */                   \
-                pr_info("%s: func=\"%s\" file=\"%s\" "                  \
-                        "module=\"%s\" format=\"%.*s\" "                \
-                        "lineno=%u-%u",                                 \
-                        msg,                                            \
-                        q->function ? q->function : "",                 \
-                        q->filename ? q->filename : "",                 \
-                        q->module ? q->module : "",                     \
-                        (int)(q->format ? strlen(q->format) - 1 : 0),   \
-                        q->format ? q->format : "",                     \
-                        q->first_lineno, q->last_lineno);               \
+#define vpr_info(fmt, ...) \
+        if (verbose) do { pr_info(fmt, ##__VA_ARGS__); } while (0)
+
+#define vpr_info_dq(q, msg)                                     \
+do {                                                            \
+        /* trim last char off format print */                   \
+        vpr_info("%s: func=\"%s\" file=\"%s\" "                 \
+                "module=\"%s\" format=\"%.*s\" "                \
+                "lineno=%u-%u",                                 \
+                msg,                                            \
+                q->function ? q->function : "",                 \
+                q->filename ? q->filename : "",                 \
+                q->module ? q->module : "",                     \
+                (int)(q->format ? strlen(q->format) - 1 : 0),   \
+                q->format ? q->format : "",                     \
+                q->first_lineno, q->last_lineno);               \
 } while (0)
 
 /*
@@ -180,12 +182,11 @@ static int ddebug_change(const struct ddebug_query *query,
                         if (newflags == dp->flags)
                                 continue;
                         dp->flags = newflags;
-                        if (verbose)
-                                pr_info("changed %s:%d [%s]%s =%s\n",
-                                        trim_prefix(dp->filename), dp->lineno,
-                                        dt->mod_name, dp->function,
-                                        ddebug_describe_flags(dp, flagbuf,
-                                                        sizeof(flagbuf)));
+                        vpr_info("changed %s:%d [%s]%s =%s\n",
+                                trim_prefix(dp->filename), dp->lineno,
+                                dt->mod_name, dp->function,
+                                ddebug_describe_flags(dp, flagbuf,
+                                                sizeof(flagbuf)));
                 }
         }
         mutex_unlock(&ddebug_lock);
@@ -337,7 +338,7 @@ static int check_set(const char **dest, char *src, char *name)
  * Returns 0 on success, <0 on error.
  */
 static int ddebug_parse_query(char *words[], int nwords,
-                               struct ddebug_query *query)
+                        struct ddebug_query *query, const char *modname)
 {
         unsigned int i;
         int rc;
@@ -347,6 +348,10 @@ static int ddebug_parse_query(char *words[], int nwords,
                 return -EINVAL;
         memset(query, 0, sizeof(*query));
 
+        if (modname)
+                /* support $modname.dyndbg=<multiple queries> */
+                query->module = modname;
+
         for (i = 0 ; i < nwords ; i += 2) {
                 if (!strcmp(words[i], "func"))
                         rc = check_set(&query->function, words[i+1], "func");
@@ -410,8 +415,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
         default:
                 return -EINVAL;
         }
-        if (verbose)
-                pr_info("op='%c'\n", op);
+        vpr_info("op='%c'\n", op);
 
         for ( ; *str ; ++str) {
                 for (i = ARRAY_SIZE(opt_array) - 1; i >= 0; i--) {
@@ -423,8 +427,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
                 if (i < 0)
                         return -EINVAL;
         }
-        if (verbose)
-                pr_info("flags=0x%x\n", flags);
+        vpr_info("flags=0x%x\n", flags);
 
         /* calculate final *flagsp, *maskp according to mask and op */
         switch (op) {
@@ -441,12 +444,11 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
                 *flagsp = 0;
                 break;
         }
-        if (verbose)
-                pr_info("*flagsp=0x%x *maskp=0x%x\n", *flagsp, *maskp);
+        vpr_info("*flagsp=0x%x *maskp=0x%x\n", *flagsp, *maskp);
         return 0;
 }
 
-static int ddebug_exec_query(char *query_string)
+static int ddebug_exec_query(char *query_string, const char *modname)
 {
         unsigned int flags = 0, mask = 0;
         struct ddebug_query query;
@@ -457,7 +459,7 @@ static int ddebug_exec_query(char *query_string)
         nwords = ddebug_tokenize(query_string, words, MAXWORDS);
         if (nwords <= 0)
                 return -EINVAL;
-        if (ddebug_parse_query(words, nwords-1, &query))
+        if (ddebug_parse_query(words, nwords-1, &query, modname))
                 return -EINVAL;
         if (ddebug_parse_flags(words[nwords-1], &flags, &mask))
                 return -EINVAL;
@@ -473,7 +475,7 @@ static int ddebug_exec_query(char *query_string)
    last error or number of matching callsites.  Module name is either
    in param (for boot arg) or perhaps in query string.
 */
-static int ddebug_exec_queries(char *query)
+static int ddebug_exec_queries(char *query, const char *modname)
 {
         char *split;
         int i, errs = 0, exitcode = 0, rc, nfound = 0;
@@ -487,10 +489,9 @@ static int ddebug_exec_queries(char *query)
                 if (!query || !*query || *query == '#')
                         continue;
 
-                if (verbose)
-                        pr_info("query %d: \"%s\"\n", i, query);
+                vpr_info("query %d: \"%s\"\n", i, query);
 
-                rc = ddebug_exec_query(query);
+                rc = ddebug_exec_query(query, modname);
                 if (rc < 0) {
                         errs++;
                         exitcode = rc;
@@ -498,7 +499,7 @@ static int ddebug_exec_queries(char *query)
                         nfound += rc;
                 i++;
         }
-        pr_info("processed %d queries, with %d matches, %d errs\n",
+        vpr_info("processed %d queries, with %d matches, %d errs\n",
                  i, nfound, errs);
 
         if (exitcode)
@@ -653,10 +654,9 @@ static ssize_t ddebug_proc_write(struct file *file, const char __user *ubuf,
                 return -EFAULT;
         }
         tmpbuf[len] = '\0';
-        if (verbose)
-                pr_info("read %d bytes from userspace\n", (int)len);
+        vpr_info("read %d bytes from userspace\n", (int)len);
 
-        ret = ddebug_exec_queries(tmpbuf);
+        ret = ddebug_exec_queries(tmpbuf, NULL);
         kfree(tmpbuf);
         if (ret < 0)
                 return ret;
@@ -717,8 +717,7 @@ static void *ddebug_proc_start(struct seq_file *m, loff_t *pos)
         struct _ddebug *dp;
         int n = *pos;
 
-        if (verbose)
-                pr_info("called m=%p *pos=%lld\n", m, (unsigned long long)*pos);
+        vpr_info("called m=%p *pos=%lld\n", m, (unsigned long long)*pos);
 
         mutex_lock(&ddebug_lock);
 
@@ -742,9 +741,8 @@ static void *ddebug_proc_next(struct seq_file *m, void *p, loff_t *pos)
         struct ddebug_iter *iter = m->private;
         struct _ddebug *dp;
 
-        if (verbose)
-                pr_info("called m=%p p=%p *pos=%lld\n",
-                        m, p, (unsigned long long)*pos);
+        vpr_info("called m=%p p=%p *pos=%lld\n",
+                m, p, (unsigned long long)*pos);
 
         if (p == SEQ_START_TOKEN)
                 dp = ddebug_iter_first(iter);
@@ -766,8 +764,7 @@ static int ddebug_proc_show(struct seq_file *m, void *p)
         struct _ddebug *dp = p;
         char flagsbuf[10];
 
-        if (verbose)
-                pr_info("called m=%p p=%p\n", m, p);
+        vpr_info("called m=%p p=%p\n", m, p);
 
         if (p == SEQ_START_TOKEN) {
                 seq_puts(m,
@@ -791,8 +788,7 @@ static int ddebug_proc_show(struct seq_file *m, void *p)
  */
 static void ddebug_proc_stop(struct seq_file *m, void *p)
 {
-        if (verbose)
-                pr_info("called m=%p p=%p\n", m, p);
+        vpr_info("called m=%p p=%p\n", m, p);
         mutex_unlock(&ddebug_lock);
 }
 
@@ -815,8 +811,7 @@ static int ddebug_proc_open(struct inode *inode, struct file *file)
         struct ddebug_iter *iter;
         int err;
 
-        if (verbose)
-                pr_info("called\n");
+        vpr_info("called\n");
 
         iter = kzalloc(sizeof(*iter), GFP_KERNEL);
         if (iter == NULL)
@@ -866,12 +861,51 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
         list_add_tail(&dt->link, &ddebug_tables);
         mutex_unlock(&ddebug_lock);
 
-        if (verbose)
-                pr_info("%u debug prints in module %s\n", n, dt->mod_name);
+        vpr_info("%u debug prints in module %s\n", n, dt->mod_name);
         return 0;
 }
 EXPORT_SYMBOL_GPL(ddebug_add_module);
 
+/* helper for ddebug_dyndbg_(boot|module)_param_cb */
+static int ddebug_dyndbg_param_cb(char *param, char *val,
+                                const char *modname, int on_err)
+{
+        char *sep;
+
+        sep = strchr(param, '.');
+        if (sep) {
+                /* needed only for ddebug_dyndbg_boot_param_cb */
+                *sep = '\0';
+                modname = param;
+                param = sep + 1;
+        }
+        if (strcmp(param, "dyndbg"))
+                return on_err; /* determined by caller */
+
+        ddebug_exec_queries((val ? val : "+p"), modname);
+
+        return 0; /* query failure shouldnt stop module load */
+}
+
+/* handle both dyndbg and $module.dyndbg params at boot */
+static int ddebug_dyndbg_boot_param_cb(char *param, char *val,
+                                const char *unused)
+{
+        vpr_info("%s=\"%s\"\n", param, val);
+        return ddebug_dyndbg_param_cb(param, val, NULL, 0);
+}
+
+/*
+ * modprobe foo finds foo.params in boot-args, strips "foo.", and
+ * passes them to load_module().  This callback gets unknown params,
+ * processes dyndbg params, rejects others.
+ */
+int ddebug_dyndbg_module_param_cb(char *param, char *val, const char *module)
+{
+        vpr_info("module: %s %s=\"%s\"\n", module, param, val);
+        return ddebug_dyndbg_param_cb(param, val, module, -ENOENT);
+}
+
 static void ddebug_table_free(struct ddebug_table *dt)
 {
         list_del_init(&dt->link);
@@ -888,8 +922,7 @@ int ddebug_remove_module(const char *mod_name)
         struct ddebug_table *dt, *nextdt;
         int ret = -ENOENT;
 
-        if (verbose)
-                pr_info("removing module \"%s\"\n", mod_name);
+        vpr_info("removing module \"%s\"\n", mod_name);
 
         mutex_lock(&ddebug_lock);
         list_for_each_entry_safe(dt, nextdt, &ddebug_tables, link) {
@@ -940,8 +973,10 @@ static int __init dynamic_debug_init(void)
 {
         struct _ddebug *iter, *iter_start;
         const char *modname = NULL;
+        char *cmdline;
         int ret = 0;
-        int n = 0;
+        int n = 0, entries = 0, modct = 0;
+        int verbose_bytes = 0;
 
         if (__start___verbose == __stop___verbose) {
                 pr_warn("_ddebug table is empty in a "
@@ -952,10 +987,15 @@ static int __init dynamic_debug_init(void)
         modname = iter->modname;
         iter_start = iter;
         for (; iter < __stop___verbose; iter++) {
+                entries++;
+                verbose_bytes += strlen(iter->modname) + strlen(iter->function)
+                        + strlen(iter->filename) + strlen(iter->format);
+
                 if (strcmp(modname, iter->modname)) {
+                        modct++;
                         ret = ddebug_add_module(iter_start, n, modname);
                         if (ret)
-                                goto out_free;
+                                goto out_err;
                         n = 0;
                         modname = iter->modname;
                         iter_start = iter;
@@ -964,29 +1004,45 @@ static int __init dynamic_debug_init(void)
         }
         ret = ddebug_add_module(iter_start, n, modname);
         if (ret)
-                goto out_free;
+                goto out_err;
+
+        ddebug_init_success = 1;
+        vpr_info("%d modules, %d entries and %d bytes in ddebug tables,"
+                " %d bytes in (readonly) verbose section\n",
+                modct, entries, (int)( modct * sizeof(struct ddebug_table)),
+                verbose_bytes + (int)(__stop___verbose - __start___verbose));
 
-        /* ddebug_query boot param got passed -> set it up */
+        /* apply ddebug_query boot param, dont unload tables on err */
         if (ddebug_setup_string[0] != '\0') {
-                ret = ddebug_exec_queries(ddebug_setup_string);
+                pr_warn("ddebug_query param name is deprecated,"
+                        " change it to dyndbg\n");
+                ret = ddebug_exec_queries(ddebug_setup_string, NULL);
                 if (ret < 0)
                         pr_warn("Invalid ddebug boot param %s",
                                 ddebug_setup_string);
                 else
                         pr_info("%d changes by ddebug_query\n", ret);
-
-                /* keep tables even on ddebug_query parse error */
-                ret = 0;
         }
+        /* now that ddebug tables are loaded, process all boot args
+         * again to find and activate queries given in dyndbg params.
+         * While this has already been done for known boot params, it
+         * ignored the unknown ones (dyndbg in particular).  Reusing
+         * parse_args avoids ad-hoc parsing.  This will also attempt
+         * to activate queries for not-yet-loaded modules, which is
+         * slightly noisy if verbose, but harmless.
+         */
+        cmdline = kstrdup(saved_command_line, GFP_KERNEL);
+        parse_args("dyndbg params", cmdline, NULL,
+                   0, 0, 0, &ddebug_dyndbg_boot_param_cb);
+        kfree(cmdline);
+        return 0;
 
-out_free:
-        if (ret)
-                ddebug_remove_all_tables();
-        else
-                ddebug_init_success = 1;
+out_err:
+        ddebug_remove_all_tables();
         return 0;
 }
 /* Allow early initialization for boot messages via boot param */
-arch_initcall(dynamic_debug_init);
+early_initcall(dynamic_debug_init);
+
 /* Debugfs setup must be done later */
-module_init(dynamic_debug_init_debugfs);
+fs_initcall(dynamic_debug_init_debugfs);
diff --git a/lib/jedec_ddr_data.c b/lib/jedec_ddr_data.c
new file mode 100644
index 000000000000..6d2cbf1d567f
--- /dev/null
+++ b/lib/jedec_ddr_data.c
@@ -0,0 +1,135 @@
+/*
+ * DDR addressing details and AC timing parameters from JEDEC specs
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ *
+ * Aneesh V <aneesh@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <memory/jedec_ddr.h>
+#include <linux/module.h>
+
+/* LPDDR2 addressing details from JESD209-2 section 2.4 */
+const struct lpddr2_addressing
+        lpddr2_jedec_addressing_table[NUM_DDR_ADDR_TABLE_ENTRIES] = {
+        {B4, T_REFI_15_6, T_RFC_90}, /* 64M */
+        {B4, T_REFI_15_6, T_RFC_90}, /* 128M */
+        {B4, T_REFI_7_8,  T_RFC_90}, /* 256M */
+        {B4, T_REFI_7_8,  T_RFC_90}, /* 512M */
+        {B8, T_REFI_7_8, T_RFC_130}, /* 1GS4 */
+        {B8, T_REFI_3_9, T_RFC_130}, /* 2GS4 */
+        {B8, T_REFI_3_9, T_RFC_130}, /* 4G */
+        {B8, T_REFI_3_9, T_RFC_210}, /* 8G */
+        {B4, T_REFI_7_8, T_RFC_130}, /* 1GS2 */
+        {B4, T_REFI_3_9, T_RFC_130}, /* 2GS2 */
+};
+EXPORT_SYMBOL_GPL(lpddr2_jedec_addressing_table);
+
+/* LPDDR2 AC timing parameters from JESD209-2 section 12 */
+const struct lpddr2_timings
+        lpddr2_jedec_timings[NUM_DDR_TIMING_TABLE_ENTRIES] = {
+        /* Speed bin 400(200 MHz) */
+        [0] = {
+                .max_freq       = 200000000,
+                .min_freq       = 10000000,
+                .tRPab          = 21000,
+                .tRCD           = 18000,
+                .tWR            = 15000,
+                .tRAS_min       = 42000,
+                .tRRD           = 10000,
+                .tWTR           = 10000,
+                .tXP            = 7500,
+                .tRTP           = 7500,
+                .tCKESR         = 15000,
+                .tDQSCK_max     = 5500,
+                .tFAW           = 50000,
+                .tZQCS          = 90000,
+                .tZQCL          = 360000,
+                .tZQinit        = 1000000,
+                .tRAS_max_ns    = 70000,
+                .tDQSCK_max_derated = 6000,
+        },
+        /* Speed bin 533(266 MHz) */
+        [1] = {
+                .max_freq       = 266666666,
+                .min_freq       = 10000000,
+                .tRPab          = 21000,
+                .tRCD           = 18000,
+                .tWR            = 15000,
+                .tRAS_min       = 42000,
+                .tRRD           = 10000,
+                .tWTR           = 7500,
+                .tXP            = 7500,
+                .tRTP           = 7500,
+                .tCKESR         = 15000,
+                .tDQSCK_max     = 5500,
+                .tFAW           = 50000,
+                .tZQCS          = 90000,
+                .tZQCL          = 360000,
+                .tZQinit        = 1000000,
+                .tRAS_max_ns    = 70000,
+                .tDQSCK_max_derated = 6000,
+        },
+        /* Speed bin 800(400 MHz) */
+        [2] = {
+                .max_freq       = 400000000,
+                .min_freq       = 10000000,
+                .tRPab          = 21000,
+                .tRCD           = 18000,
+                .tWR            = 15000,
+                .tRAS_min       = 42000,
+                .tRRD           = 10000,
+                .tWTR           = 7500,
+                .tXP            = 7500,
+                .tRTP           = 7500,
+                .tCKESR         = 15000,
+                .tDQSCK_max     = 5500,
+                .tFAW           = 50000,
+                .tZQCS          = 90000,
+                .tZQCL          = 360000,
+                .tZQinit        = 1000000,
+                .tRAS_max_ns    = 70000,
+                .tDQSCK_max_derated = 6000,
+        },
+        /* Speed bin 1066(533 MHz) */
+        [3] = {
+                .max_freq       = 533333333,
+                .min_freq       = 10000000,
+                .tRPab          = 21000,
+                .tRCD           = 18000,
+                .tWR            = 15000,
+                .tRAS_min       = 42000,
+                .tRRD           = 10000,
+                .tWTR           = 7500,
+                .tXP            = 7500,
+                .tRTP           = 7500,
+                .tCKESR         = 15000,
+                .tDQSCK_max     = 5500,
+                .tFAW           = 50000,
+                .tZQCS          = 90000,
+                .tZQCL          = 360000,
+                .tZQinit        = 1000000,
+                .tRAS_max_ns    = 70000,
+                .tDQSCK_max_derated = 5620,
+        },
+};
+EXPORT_SYMBOL_GPL(lpddr2_jedec_timings);
+
+const struct lpddr2_min_tck lpddr2_jedec_min_tck = {
+        .tRPab          = 3,
+        .tRCD           = 3,
+        .tWR            = 3,
+        .tRASmin        = 3,
+        .tRRD           = 2,
+        .tWTR           = 2,
+        .tXP            = 2,
+        .tRTP           = 2,
+        .tCKE           = 3,
+        .tCKESR         = 3,
+        .tFAW           = 8
+};
+EXPORT_SYMBOL_GPL(lpddr2_jedec_min_tck);
diff --git a/lib/kobject.c b/lib/kobject.c
index aeefa8bc8b1c..e07ee1fcd6f1 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -47,13 +47,11 @@ static int populate_dir(struct kobject *kobj)
 static int create_dir(struct kobject *kobj)
 {
         int error = 0;
-        if (kobject_name(kobj)) {
-                error = sysfs_create_dir(kobj);
-                if (!error) {
-                        error = populate_dir(kobj);
-                        if (error)
-                                sysfs_remove_dir(kobj);
-                }
+        error = sysfs_create_dir(kobj);
+        if (!error) {
+                error = populate_dir(kobj);
+                if (error)
+                        sysfs_remove_dir(kobj);
         }
         return error;
 }
@@ -634,7 +632,7 @@ struct kobject *kobject_create(void)
 /**
  * kobject_create_and_add - create a struct kobject dynamically and register it with sysfs
  *
- * @name: the name for the kset
+ * @name: the name for the kobject
  * @parent: the parent kobject of this kobject, if any.
  *
  * This function creates a kobject structure dynamically and registers it