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-rw-r--r--drivers/mfd/mfd-core.c17
-rw-r--r--include/linux/mfd/core.h2
2 files changed, 10 insertions, 9 deletions
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index f421586f29fb..8736f4539bc0 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -63,7 +63,8 @@ int mfd_cell_disable(struct platform_device *pdev)
63EXPORT_SYMBOL(mfd_cell_disable); 63EXPORT_SYMBOL(mfd_cell_disable);
64 64
65static int mfd_platform_add_cell(struct platform_device *pdev, 65static int mfd_platform_add_cell(struct platform_device *pdev,
66 const struct mfd_cell *cell) 66 const struct mfd_cell *cell,
67 atomic_t *usage_count)
67{ 68{
68 if (!cell) 69 if (!cell)
69 return 0; 70 return 0;
@@ -72,11 +73,12 @@ static int mfd_platform_add_cell(struct platform_device *pdev,
72 if (!pdev->mfd_cell) 73 if (!pdev->mfd_cell)
73 return -ENOMEM; 74 return -ENOMEM;
74 75
76 pdev->mfd_cell->usage_count = usage_count;
75 return 0; 77 return 0;
76} 78}
77 79
78static int mfd_add_device(struct device *parent, int id, 80static int mfd_add_device(struct device *parent, int id,
79 const struct mfd_cell *cell, 81 const struct mfd_cell *cell, atomic_t *usage_count,
80 struct resource *mem_base, 82 struct resource *mem_base,
81 int irq_base, struct irq_domain *domain) 83 int irq_base, struct irq_domain *domain)
82{ 84{
@@ -115,7 +117,7 @@ static int mfd_add_device(struct device *parent, int id,
115 goto fail_res; 117 goto fail_res;
116 } 118 }
117 119
118 ret = mfd_platform_add_cell(pdev, cell); 120 ret = mfd_platform_add_cell(pdev, cell, usage_count);
119 if (ret) 121 if (ret)
120 goto fail_res; 122 goto fail_res;
121 123
@@ -180,7 +182,7 @@ fail_alloc:
180} 182}
181 183
182int mfd_add_devices(struct device *parent, int id, 184int mfd_add_devices(struct device *parent, int id,
183 struct mfd_cell *cells, int n_devs, 185 const struct mfd_cell *cells, int n_devs,
184 struct resource *mem_base, 186 struct resource *mem_base,
185 int irq_base, struct irq_domain *domain) 187 int irq_base, struct irq_domain *domain)
186{ 188{
@@ -195,8 +197,7 @@ int mfd_add_devices(struct device *parent, int id,
195 197
196 for (i = 0; i < n_devs; i++) { 198 for (i = 0; i < n_devs; i++) {
197 atomic_set(&cnts[i], 0); 199 atomic_set(&cnts[i], 0);
198 cells[i].usage_count = &cnts[i]; 200 ret = mfd_add_device(parent, id, cells + i, cnts + i, mem_base,
199 ret = mfd_add_device(parent, id, cells + i, mem_base,
200 irq_base, domain); 201 irq_base, domain);
201 if (ret) 202 if (ret)
202 break; 203 break;
@@ -259,8 +260,8 @@ int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones)
259 for (i = 0; i < n_clones; i++) { 260 for (i = 0; i < n_clones; i++) {
260 cell_entry.name = clones[i]; 261 cell_entry.name = clones[i];
261 /* don't give up if a single call fails; just report error */ 262 /* don't give up if a single call fails; just report error */
262 if (mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0, 263 if (mfd_add_device(pdev->dev.parent, -1, &cell_entry,
263 NULL)) 264 cell_entry.usage_count, NULL, 0, NULL))
264 dev_err(dev, "failed to create platform device '%s'\n", 265 dev_err(dev, "failed to create platform device '%s'\n",
265 clones[i]); 266 clones[i]);
266 } 267 }
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index cebe97ee98b8..60ced604664f 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -98,7 +98,7 @@ static inline const struct mfd_cell *mfd_get_cell(struct platform_device *pdev)
98} 98}
99 99
100extern int mfd_add_devices(struct device *parent, int id, 100extern int mfd_add_devices(struct device *parent, int id,
101 struct mfd_cell *cells, int n_devs, 101 const struct mfd_cell *cells, int n_devs,
102 struct resource *mem_base, 102 struct resource *mem_base,
103 int irq_base, struct irq_domain *irq_domain); 103 int irq_base, struct irq_domain *irq_domain);
104 104