Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic

Patches from David Howells <dhowells@redhat.com>:

This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.

Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.

* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate include/asm-generic
  UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
  c6x: remove c6x signal.h
  UAPI: Split compound conditionals containing __KERNEL__ in Arm64
  UAPI: Fix the guards on various asm/unistd.h files

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 217 insertions, 12 deletions

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 37afbd173c2c..00c006686b0d 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -139,18 +139,20 @@
 #include <linux/slab.h>
 #include <linux/bootmem.h>
 
-#include "common.h"
-#include <plat/cpu.h>
-#include "clockdomain.h"
-#include "powerdomain.h"
 #include <plat/clock.h>
 #include <plat/omap_hwmod.h>
 #include <plat/prcm.h>
 
+#include "soc.h"
+#include "common.h"
+#include "clockdomain.h"
+#include "powerdomain.h"
 #include "cm2xxx_3xxx.h"
 #include "cminst44xx.h"
+#include "cm33xx.h"
 #include "prm2xxx_3xxx.h"
 #include "prm44xx.h"
+#include "prm33xx.h"
 #include "prminst44xx.h"
 #include "mux.h"
 #include "pm.h"
@@ -868,6 +870,26 @@ static void _omap4_enable_module(struct omap_hwmod *oh)
 }
 
 /**
+ * _am33xx_enable_module - enable CLKCTRL modulemode on AM33XX
+ * @oh: struct omap_hwmod *
+ *
+ * Enables the PRCM module mode related to the hwmod @oh.
+ * No return value.
+ */
+static void _am33xx_enable_module(struct omap_hwmod *oh)
+{
+	if (!oh->clkdm || !oh->prcm.omap4.modulemode)
+		return;
+
+	pr_debug("omap_hwmod: %s: %s: %d\n",
+		 oh->name, __func__, oh->prcm.omap4.modulemode);
+
+	am33xx_cm_module_enable(oh->prcm.omap4.modulemode, oh->clkdm->cm_inst,
+				oh->clkdm->clkdm_offs,
+				oh->prcm.omap4.clkctrl_offs);
+}
+
+/**
  * _omap4_wait_target_disable - wait for a module to be disabled on OMAP4
  * @oh: struct omap_hwmod *
  *
@@ -894,6 +916,31 @@ static int _omap4_wait_target_disable(struct omap_hwmod *oh)
 }
 
 /**
+ * _am33xx_wait_target_disable - wait for a module to be disabled on AM33XX
+ * @oh: struct omap_hwmod *
+ *
+ * Wait for a module @oh to enter slave idle.  Returns 0 if the module
+ * does not have an IDLEST bit or if the module successfully enters
+ * slave idle; otherwise, pass along the return value of the
+ * appropriate *_cm*_wait_module_idle() function.
+ */
+static int _am33xx_wait_target_disable(struct omap_hwmod *oh)
+{
+	if (!oh)
+		return -EINVAL;
+
+	if (oh->_int_flags & _HWMOD_NO_MPU_PORT)
+		return 0;
+
+	if (oh->flags & HWMOD_NO_IDLEST)
+		return 0;
+
+	return am33xx_cm_wait_module_idle(oh->clkdm->cm_inst,
+					     oh->clkdm->clkdm_offs,
+					     oh->prcm.omap4.clkctrl_offs);
+}
+
+/**
  * _count_mpu_irqs - count the number of MPU IRQ lines associated with @oh
  * @oh: struct omap_hwmod *oh
  *
@@ -1438,8 +1485,8 @@ static int _init_clocks(struct omap_hwmod *oh, void *data)
  * Return the bit position of the reset line that match the
  * input name. Return -ENOENT if not found.
  */
-static u8 _lookup_hardreset(struct omap_hwmod *oh, const char *name,
-			    struct omap_hwmod_rst_info *ohri)
+static int _lookup_hardreset(struct omap_hwmod *oh, const char *name,
+			     struct omap_hwmod_rst_info *ohri)
 {
 	int i;
 
@@ -1475,7 +1522,7 @@ static u8 _lookup_hardreset(struct omap_hwmod *oh, const char *name,
 static int _assert_hardreset(struct omap_hwmod *oh, const char *name)
 {
 	struct omap_hwmod_rst_info ohri;
-	u8 ret = -EINVAL;
+	int ret = -EINVAL;
 
 	if (!oh)
 		return -EINVAL;
@@ -1484,7 +1531,7 @@ static int _assert_hardreset(struct omap_hwmod *oh, const char *name)
 		return -ENOSYS;
 
 	ret = _lookup_hardreset(oh, name, &ohri);
-	if (IS_ERR_VALUE(ret))
+	if (ret < 0)
 		return ret;
 
 	ret = soc_ops.assert_hardreset(oh, &ohri);
@@ -1542,7 +1589,7 @@ static int _deassert_hardreset(struct omap_hwmod *oh, const char *name)
 static int _read_hardreset(struct omap_hwmod *oh, const char *name)
 {
 	struct omap_hwmod_rst_info ohri;
-	u8 ret = -EINVAL;
+	int ret = -EINVAL;
 
 	if (!oh)
 		return -EINVAL;
@@ -1551,7 +1598,7 @@ static int _read_hardreset(struct omap_hwmod *oh, const char *name)
 		return -ENOSYS;
 
 	ret = _lookup_hardreset(oh, name, &ohri);
-	if (IS_ERR_VALUE(ret))
+	if (ret < 0)
 		return ret;
 
 	return soc_ops.is_hardreset_asserted(oh, &ohri);
@@ -1614,6 +1661,36 @@ static int _omap4_disable_module(struct omap_hwmod *oh)
 }
 
 /**
+ * _am33xx_disable_module - enable CLKCTRL modulemode on AM33XX
+ * @oh: struct omap_hwmod *
+ *
+ * Disable the PRCM module mode related to the hwmod @oh.
+ * Return EINVAL if the modulemode is not supported and 0 in case of success.
+ */
+static int _am33xx_disable_module(struct omap_hwmod *oh)
+{
+	int v;
+
+	if (!oh->clkdm || !oh->prcm.omap4.modulemode)
+		return -EINVAL;
+
+	pr_debug("omap_hwmod: %s: %s\n", oh->name, __func__);
+
+	am33xx_cm_module_disable(oh->clkdm->cm_inst, oh->clkdm->clkdm_offs,
+				 oh->prcm.omap4.clkctrl_offs);
+
+	if (_are_any_hardreset_lines_asserted(oh))
+		return 0;
+
+	v = _am33xx_wait_target_disable(oh);
+	if (v)
+		pr_warn("omap_hwmod: %s: _wait_target_disable failed\n",
+			oh->name);
+
+	return 0;
+}
+
+/**
  * _ocp_softreset - reset an omap_hwmod via the OCP_SYSCONFIG bit
  * @oh: struct omap_hwmod *
  *
@@ -1641,8 +1718,8 @@ static int _ocp_softreset(struct omap_hwmod *oh)
 
 	/* clocks must be on for this operation */
 	if (oh->_state != _HWMOD_STATE_ENABLED) {
-		pr_warning("omap_hwmod: %s: reset can only be entered from "
-			   "enabled state\n", oh->name);
+		pr_warn("omap_hwmod: %s: reset can only be entered from enabled state\n",
+			oh->name);
 		return -EINVAL;
 	}
 
@@ -2549,6 +2626,33 @@ static int _omap4_wait_target_ready(struct omap_hwmod *oh)
 }
 
 /**
+ * _am33xx_wait_target_ready - wait for a module to leave slave idle
+ * @oh: struct omap_hwmod *
+ *
+ * Wait for a module @oh to leave slave idle.  Returns 0 if the module
+ * does not have an IDLEST bit or if the module successfully leaves
+ * slave idle; otherwise, pass along the return value of the
+ * appropriate *_cm*_wait_module_ready() function.
+ */
+static int _am33xx_wait_target_ready(struct omap_hwmod *oh)
+{
+	if (!oh || !oh->clkdm)
+		return -EINVAL;
+
+	if (oh->flags & HWMOD_NO_IDLEST)
+		return 0;
+
+	if (!_find_mpu_rt_port(oh))
+		return 0;
+
+	/* XXX check module SIDLEMODE, hardreset status */
+
+	return am33xx_cm_wait_module_ready(oh->clkdm->cm_inst,
+					      oh->clkdm->clkdm_offs,
+					      oh->prcm.omap4.clkctrl_offs);
+}
+
+/**
  * _omap2_assert_hardreset - call OMAP2 PRM hardreset fn with hwmod args
  * @oh: struct omap_hwmod * to assert hardreset
  * @ohri: hardreset line data
@@ -2679,6 +2783,72 @@ static int _omap4_is_hardreset_asserted(struct omap_hwmod *oh,
 				oh->prcm.omap4.rstctrl_offs);
 }
 
+/**
+ * _am33xx_assert_hardreset - call AM33XX PRM hardreset fn with hwmod args
+ * @oh: struct omap_hwmod * to assert hardreset
+ * @ohri: hardreset line data
+ *
+ * Call am33xx_prminst_assert_hardreset() with parameters extracted
+ * from the hwmod @oh and the hardreset line data @ohri.  Only
+ * intended for use as an soc_ops function pointer.  Passes along the
+ * return value from am33xx_prminst_assert_hardreset().  XXX This
+ * function is scheduled for removal when the PRM code is moved into
+ * drivers/.
+ */
+static int _am33xx_assert_hardreset(struct omap_hwmod *oh,
+				   struct omap_hwmod_rst_info *ohri)
+
+{
+	return am33xx_prm_assert_hardreset(ohri->rst_shift,
+				oh->clkdm->pwrdm.ptr->prcm_offs,
+				oh->prcm.omap4.rstctrl_offs);
+}
+
+/**
+ * _am33xx_deassert_hardreset - call AM33XX PRM hardreset fn with hwmod args
+ * @oh: struct omap_hwmod * to deassert hardreset
+ * @ohri: hardreset line data
+ *
+ * Call am33xx_prminst_deassert_hardreset() with parameters extracted
+ * from the hwmod @oh and the hardreset line data @ohri.  Only
+ * intended for use as an soc_ops function pointer.  Passes along the
+ * return value from am33xx_prminst_deassert_hardreset().  XXX This
+ * function is scheduled for removal when the PRM code is moved into
+ * drivers/.
+ */
+static int _am33xx_deassert_hardreset(struct omap_hwmod *oh,
+				     struct omap_hwmod_rst_info *ohri)
+{
+	if (ohri->st_shift)
+		pr_err("omap_hwmod: %s: %s: hwmod data error: OMAP4 does not support st_shift\n",
+		       oh->name, ohri->name);
+
+	return am33xx_prm_deassert_hardreset(ohri->rst_shift,
+				oh->clkdm->pwrdm.ptr->prcm_offs,
+				oh->prcm.omap4.rstctrl_offs,
+				oh->prcm.omap4.rstst_offs);
+}
+
+/**
+ * _am33xx_is_hardreset_asserted - call AM33XX PRM hardreset fn with hwmod args
+ * @oh: struct omap_hwmod * to test hardreset
+ * @ohri: hardreset line data
+ *
+ * Call am33xx_prminst_is_hardreset_asserted() with parameters
+ * extracted from the hwmod @oh and the hardreset line data @ohri.
+ * Only intended for use as an soc_ops function pointer.  Passes along
+ * the return value from am33xx_prminst_is_hardreset_asserted().  XXX
+ * This function is scheduled for removal when the PRM code is moved
+ * into drivers/.
+ */
+static int _am33xx_is_hardreset_asserted(struct omap_hwmod *oh,
+					struct omap_hwmod_rst_info *ohri)
+{
+	return am33xx_prm_is_hardreset_asserted(ohri->rst_shift,
+				oh->clkdm->pwrdm.ptr->prcm_offs,
+				oh->prcm.omap4.rstctrl_offs);
+}
+
 /* Public functions */
 
 u32 omap_hwmod_read(struct omap_hwmod *oh, u16 reg_offs)
@@ -3159,6 +3329,33 @@ int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res)
 }
 
 /**
+ * omap_hwmod_fill_dma_resources - fill struct resource array with dma data
+ * @oh: struct omap_hwmod *
+ * @res: pointer to the array of struct resource to fill
+ *
+ * Fill the struct resource array @res with dma resource data from the
+ * omap_hwmod @oh.  Intended to be called by code that registers
+ * omap_devices.  See also omap_hwmod_count_resources().  Returns the
+ * number of array elements filled.
+ */
+int omap_hwmod_fill_dma_resources(struct omap_hwmod *oh, struct resource *res)
+{
+	int i, sdma_reqs_cnt;
+	int r = 0;
+
+	sdma_reqs_cnt = _count_sdma_reqs(oh);
+	for (i = 0; i < sdma_reqs_cnt; i++) {
+		(res + r)->name = (oh->sdma_reqs + i)->name;
+		(res + r)->start = (oh->sdma_reqs + i)->dma_req;
+		(res + r)->end = (oh->sdma_reqs + i)->dma_req;
+		(res + r)->flags = IORESOURCE_DMA;
+		r++;
+	}
+
+	return r;
+}
+
+/**
  * omap_hwmod_get_resource_byname - fetch IP block integration data by name
  * @oh: struct omap_hwmod * to operate on
  * @type: one of the IORESOURCE_* constants from include/linux/ioport.h
@@ -3678,6 +3875,14 @@ void __init omap_hwmod_init(void)
 		soc_ops.deassert_hardreset = _omap4_deassert_hardreset;
 		soc_ops.is_hardreset_asserted = _omap4_is_hardreset_asserted;
 		soc_ops.init_clkdm = _init_clkdm;
+	} else if (soc_is_am33xx()) {
+		soc_ops.enable_module = _am33xx_enable_module;
+		soc_ops.disable_module = _am33xx_disable_module;
+		soc_ops.wait_target_ready = _am33xx_wait_target_ready;
+		soc_ops.assert_hardreset = _am33xx_assert_hardreset;
+		soc_ops.deassert_hardreset = _am33xx_deassert_hardreset;
+		soc_ops.is_hardreset_asserted = _am33xx_is_hardreset_asserted;
+		soc_ops.init_clkdm = _init_clkdm;
 	} else {
 		WARN(1, "omap_hwmod: unknown SoC type\n");
 	}