On 05/25/2016 02:22 PM, Linus Walleij wrote:
The STMPE platform data is only populated from the device tree
in all existing users, so push the struct and make the OF case
the norm.

Cc: Patrice Chotard <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
---
ChangeLog v1->v2:
- Drop check for (!np) NULL device node: as Lee notices, this
   can no longer happen on a pure DT driver.
---
  drivers/mfd/stmpe.c       | 40 ++++++++++++++++++++++++++++------------
  include/linux/mfd/stmpe.h | 22 +---------------------
  2 files changed, 29 insertions(+), 33 deletions(-)

diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index fb8f9e8b75df..94c7cc02fdab 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -23,6 +23,27 @@
  #include <linux/regulator/consumer.h>
  #include "stmpe.h"
+/**
+ * struct stmpe_platform_data - STMPE platform data
+ * @id: device id to distinguish between multiple STMPEs on the same board
+ * @blocks: bitmask of blocks to enable (use STMPE_BLOCK_*)
+ * @irq_trigger: IRQ trigger to use for the interrupt to the host
+ * @autosleep: bool to enable/disable stmpe autosleep
+ * @autosleep_timeout: inactivity timeout in milliseconds for autosleep
+ * @irq_over_gpio: true if gpio is used to get irq
+ * @irq_gpio: gpio number over which irq will be requested (significant only if
+ *           irq_over_gpio is true)
+ */
+struct stmpe_platform_data {
+       int id;
+       unsigned int blocks;
+       unsigned int irq_trigger;
+       bool autosleep;
+       bool irq_over_gpio;
+       int irq_gpio;
+       int autosleep_timeout;
+};
+
  static int __stmpe_enable(struct stmpe *stmpe, unsigned int blocks)
  {
        return stmpe->variant->enable(stmpe, blocks, true);
@@ -1187,24 +1208,19 @@ static void stmpe_of_probe(struct stmpe_platform_data 
*pdata,
  /* Called from client specific probe routines */
  int stmpe_probe(struct stmpe_client_info *ci, enum stmpe_partnum partnum)
  {
-       struct stmpe_platform_data *pdata = dev_get_platdata(ci->dev);
+       struct stmpe_platform_data *pdata;
        struct device_node *np = ci->dev->of_node;
        struct stmpe *stmpe;
        int ret;
- if (!pdata) {
-               if (!np)
-                       return -EINVAL;
-
-               pdata = devm_kzalloc(ci->dev, sizeof(*pdata), GFP_KERNEL);
-               if (!pdata)
-                       return -ENOMEM;
+       pdata = devm_kzalloc(ci->dev, sizeof(*pdata), GFP_KERNEL);
+       if (!pdata)
+               return -ENOMEM;
- stmpe_of_probe(pdata, np);
+       stmpe_of_probe(pdata, np);
- if (of_find_property(np, "interrupts", NULL) == NULL)
-                       ci->irq = -1;
-       }
+       if (of_find_property(np, "interrupts", NULL) == NULL)
+               ci->irq = -1;
stmpe = devm_kzalloc(ci->dev, sizeof(struct stmpe), GFP_KERNEL);
        if (!stmpe)
diff --git a/include/linux/mfd/stmpe.h b/include/linux/mfd/stmpe.h
index cb83883918a7..de748bc7525e 100644
--- a/include/linux/mfd/stmpe.h
+++ b/include/linux/mfd/stmpe.h
@@ -62,6 +62,7 @@ enum {
struct stmpe_variant_info;
  struct stmpe_client_info;
+struct stmpe_platform_data;
/**
   * struct stmpe - STMPE MFD structure
@@ -117,25 +118,4 @@ extern int stmpe_disable(struct stmpe *stmpe, unsigned int 
blocks);
#define STMPE_GPIO_NOREQ_811_TOUCH (0xf0) -/**
- * struct stmpe_platform_data - STMPE platform data
- * @id: device id to distinguish between multiple STMPEs on the same board
- * @blocks: bitmask of blocks to enable (use STMPE_BLOCK_*)
- * @irq_trigger: IRQ trigger to use for the interrupt to the host
- * @autosleep: bool to enable/disable stmpe autosleep
- * @autosleep_timeout: inactivity timeout in milliseconds for autosleep
- * @irq_over_gpio: true if gpio is used to get irq
- * @irq_gpio: gpio number over which irq will be requested (significant only if
- *           irq_over_gpio is true)
- */
-struct stmpe_platform_data {
-       int id;
-       unsigned int blocks;
-       unsigned int irq_trigger;
-       bool autosleep;
-       bool irq_over_gpio;
-       int irq_gpio;
-       int autosleep_timeout;
-};
-
  #endif

Acked-by: Patrice Chotard <[email protected]>

Thanks

Patrice

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