From 55fc280e951ab2b39f3dcb640edc1b1eebc6d173 Mon Sep 17 00:00:00 2001
From: "Rob Herring (Arm)" <robh@kernel.org>
Date: Mon, 31 Aug 2026 14:43:51 -0500
Subject: Input: tsc2007 - read "ti,poll-period" as u32

The "ti,poll-period" property is documented as a normal uint32 cell.
The driver used a u64 helper, which makes the helper type disagree with
the schema even though the stored value is still small.

Read "ti,poll-period" with the u32 helper matching the documented DT
cell size.

Assisted-by: Codex:gpt-5-5
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260831194352.1185860-1-robh@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 arch/sh/mm/pgtable.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 arch/sh/mm/pgtable.c

(limited to 'arch/sh/mm/pgtable.c')

diff --git a/arch/sh/mm/pgtable.c b/arch/sh/mm/pgtable.c
new file mode 100644
index 000000000..3a4085ea0
--- /dev/null
+++ b/arch/sh/mm/pgtable.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/mm.h>
+#include <linux/slab.h>
+
+#include <asm/pgalloc.h>
+
+static struct kmem_cache *pgd_cachep;
+#if PAGETABLE_LEVELS > 2
+static struct kmem_cache *pmd_cachep;
+#endif
+
+static void pgd_ctor(void *x)
+{
+	pgd_t *pgd = x;
+
+	memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
+	memcpy(pgd + USER_PTRS_PER_PGD,
+	       swapper_pg_dir + USER_PTRS_PER_PGD,
+	       (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
+}
+
+void pgtable_cache_init(void)
+{
+	pgd_cachep = kmem_cache_create("pgd_cache",
+				       PTRS_PER_PGD * (1<<PTE_MAGNITUDE),
+				       PAGE_SIZE, SLAB_PANIC, pgd_ctor);
+#if PAGETABLE_LEVELS > 2
+	pmd_cachep = kmem_cache_create("pmd_cache",
+				       PTRS_PER_PMD * (1<<PTE_MAGNITUDE),
+				       PAGE_SIZE, SLAB_PANIC, NULL);
+#endif
+}
+
+pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+	return kmem_cache_alloc(pgd_cachep, GFP_KERNEL);
+}
+
+void pgd_free(struct mm_struct *mm, pgd_t *pgd)
+{
+	kmem_cache_free(pgd_cachep, pgd);
+}
+
+#if PAGETABLE_LEVELS > 2
+void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	set_pud(pud, __pud((unsigned long)pmd));
+}
+
+pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+	return kmem_cache_alloc(pmd_cachep, GFP_KERNEL | __GFP_ZERO);
+}
+
+void pmd_free(struct mm_struct *mm, pmd_t *pmd)
+{
+	kmem_cache_free(pmd_cachep, pmd);
+}
+#endif /* PAGETABLE_LEVELS > 2 */
-- 
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