> On Fri, Aug 24, 2012 at 02:50:00PM +0100, Krystian Garbaciak wrote:
>
> > This is MFD module providing access to registers and interrupts of DA906x
> > series PMIC. It is used by other functional modules, registered as MFD cells.
> > Driver uses regmap with paging to access extended register list. Register map
> > is divided into two pages, where the second page is used during initialisation.
>
> Your selection of people to CC here appears both large and random...
I've added any maintainer for my modules from maintainer list.
> > +inline unsigned int da906x_to_range_reg(u16 reg)
> > +{
> > + return reg + DA906X_MAPPING_BASE;
> > +}
>
> I've no real idea what this stuff is all about, it at least needs some
> comments somewhere. The fact that you're just adding a constant offset
> to all registers is at best odd.
I will comment it precisely for next version:
+/* Adding virtual register range starting from address DA9063_MAPPING_BASE.
+ It will be used for registers requiring page switching, which in our case
+ are virtually all PMIC registers.
+ Registers from 0 to 255 are used only as a page window and are volatile,
+ except DA9063_REG_PAGE_CON register (page selector), which is cachable. */
+static const struct regmap_range_cfg da9063_range_cfg[] = {
+ {
+ .range_min = DA9063_MAPPING_BASE,
+ .range_max = DA9063_MAPPING_BASE +
+ ARRAY_SIZE(da9063_reg_flg) - 1,
+ .selector_reg = DA9063_REG_PAGE_CON,
+ .selector_mask = 1 << DA9063_I2C_PAGE_SEL_SHIFT,
+ .selector_shift = DA9063_I2C_PAGE_SEL_SHIFT,
+ .window_start = 0,
+ .window_len = 256,
+ }
+};
.. and here:
+/* Access to any PMIC register is passed through virtual register range,
+ starting at DA9063_MAPPING_BASE. For those registers, paging is required. */
+inline unsigned int da9063_to_range_reg(u16 reg)
+{
+ return reg + DA9063_MAPPING_BASE;
+}
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