Merge tag 'for-v4.2-rc/omap-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes

Merge "ARM: OMAP2+: hwmod fixes for v4.2-rc" from Paul Walmsley:

ARM: OMAP2+: hwmod fixes for v4.2-rc

Two fixes against v4.2-rc1.  The first, for DRA7xx platforms,
corrects some incorrect GPMC hardware description data.  The
second one will ensure that the hwmod code will wait for any
module with CPU-accessible registers to become ready before
attempting to access it.

Basic build, boot, and PM test logs are available here:

http://www.pwsan.com/omap/testlogs/omap-hwmod-a-for-v4.2-rc/20150723065408/

Note that I do not have a DRA7xx or AM43xx board, and therefore
cannot test on those platforms.

* tag 'for-v4.2-rc/omap-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
  ARM: OMAP2+: hwmod: Fix _wait_target_ready() for hwmods without sysc
  ARM: DRA7: hwmod: fix gpmc hwmod

Signed-off-by: Olof Johansson <olof@lixom.net>

2 files changed, 18 insertions, 11 deletions

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index d78c12e7cb5e..486cc4ded190 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -2373,6 +2373,9 @@ static int of_dev_hwmod_lookup(struct device_node *np,
  * registers.  This address is needed early so the OCP registers that
  * are part of the device's address space can be ioremapped properly.
  *
+ * If SYSC access is not needed, the registers will not be remapped
+ * and non-availability of MPU access is not treated as an error.
+ *
  * Returns 0 on success, -EINVAL if an invalid hwmod is passed, and
  * -ENXIO on absent or invalid register target address space.
  */
@@ -2387,6 +2390,11 @@ static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data,
 
         _save_mpu_port_index(oh);
 
+        /* if we don't need sysc access we don't need to ioremap */
+        if (!oh->class->sysc)
+                return 0;
+
+        /* we can't continue without MPU PORT if we need sysc access */
         if (oh->_int_flags & _HWMOD_NO_MPU_PORT)
                 return -ENXIO;
 
@@ -2396,8 +2404,10 @@ static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data,
                          oh->name);
 
                 /* Extract the IO space from device tree blob */
-                if (!np)
+                if (!np) {
+                        pr_err("omap_hwmod: %s: no dt node\n", oh->name);
                         return -ENXIO;
+                }
 
                 va_start = of_iomap(np, index + oh->mpu_rt_idx);
         } else {
@@ -2456,13 +2466,11 @@ static int __init _init(struct omap_hwmod *oh, void *data)
                                 oh->name, np->name);
         }
 
-        if (oh->class->sysc) {
-                r = _init_mpu_rt_base(oh, NULL, index, np);
-                if (r < 0) {
-                        WARN(1, "omap_hwmod: %s: doesn't have mpu register target base\n",
-                             oh->name);
-                        return 0;
-                }
+        r = _init_mpu_rt_base(oh, NULL, index, np);
+        if (r < 0) {
+                WARN(1, "omap_hwmod: %s: doesn't have mpu register target base\n",
+                     oh->name);
+                return 0;
         }
 
         r = _init_clocks(oh, NULL);
diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
index 2606c6608bd8..562247bced49 100644
--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -827,8 +827,7 @@ static struct omap_hwmod_class_sysconfig dra7xx_gpmc_sysc = {
         .syss_offs      = 0x0014,
         .sysc_flags     = (SYSC_HAS_AUTOIDLE | SYSC_HAS_SIDLEMODE |
                            SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
-        .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-                           SIDLE_SMART_WKUP),
+        .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
         .sysc_fields    = &omap_hwmod_sysc_type1,
 };
 
@@ -844,7 +843,7 @@ static struct omap_hwmod dra7xx_gpmc_hwmod = {
         .class          = &dra7xx_gpmc_hwmod_class,
         .clkdm_name     = "l3main1_clkdm",
         /* Skip reset for CONFIG_OMAP_GPMC_DEBUG for bootloader timings */
-        .flags          = HWMOD_SWSUP_SIDLE | DEBUG_OMAP_GPMC_HWMOD_FLAGS,
+        .flags          = DEBUG_OMAP_GPMC_HWMOD_FLAGS,
         .main_clk       = "l3_iclk_div",
         .prcm = {
                 .omap4 = {