Expose the memory regions used by the DSP cores on WM5110 as readable
and volatile.
Signed-off-by: Charles Keepax <ckee...@opensource.wolfsonmicro.com>
---
drivers/mfd/wm5110-tables.c | 69 ++++++++++++++++++++++++++++++++++++++++--
1 files changed, 65 insertions(+), 4 deletions(-)
diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index 3113e39..4430404 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -14,6 +14,7 @@
#include <linux/mfd/arizona/core.h>
#include <linux/mfd/arizona/registers.h>
+#include <linux/device.h>
#include "arizona.h"
@@ -1336,6 +1337,64 @@ static const struct reg_default wm5110_reg_default[] = {
{ 0x00001404, 0x0000 }, /* R5124 - DSP4 Status 1 */
};
+static bool wm5110_is_rev_b_adsp_memory(unsigned int reg)
+{
+ if ((reg >= 0x100000 && reg < 0x103000) ||
+ (reg >= 0x180000 && reg < 0x181000) ||
+ (reg >= 0x190000 && reg < 0x192000) ||
+ (reg >= 0x1a8000 && reg < 0x1a9000) ||
+ (reg >= 0x200000 && reg < 0x209000) ||
+ (reg >= 0x280000 && reg < 0x281000) ||
+ (reg >= 0x290000 && reg < 0x29a000) ||
+ (reg >= 0x2a8000 && reg < 0x2aa000) ||
+ (reg >= 0x300000 && reg < 0x30f000) ||
+ (reg >= 0x380000 && reg < 0x382000) ||
+ (reg >= 0x390000 && reg < 0x39e000) ||
+ (reg >= 0x3a8000 && reg < 0x3b6000) ||
+ (reg >= 0x400000 && reg < 0x403000) ||
+ (reg >= 0x480000 && reg < 0x481000) ||
+ (reg >= 0x490000 && reg < 0x492000) ||
+ (reg >= 0x4a8000 && reg < 0x4a9000))
+ return true;
+ else
+ return false;
+}
+
+static bool wm5110_is_rev_d_adsp_memory(unsigned int reg)
+{
+ if ((reg >= 0x100000 && reg < 0x106000) ||
+ (reg >= 0x180000 && reg < 0x182000) ||
+ (reg >= 0x190000 && reg < 0x198000) ||
+ (reg >= 0x1a8000 && reg < 0x1aa000) ||
+ (reg >= 0x200000 && reg < 0x20f000) ||
+ (reg >= 0x280000 && reg < 0x282000) ||
+ (reg >= 0x290000 && reg < 0x29c000) ||
+ (reg >= 0x2a6000 && reg < 0x2b4000) ||
+ (reg >= 0x300000 && reg < 0x30f000) ||
+ (reg >= 0x380000 && reg < 0x382000) ||
+ (reg >= 0x390000 && reg < 0x3a2000) ||
+ (reg >= 0x3a6000 && reg < 0x3b4000) ||
+ (reg >= 0x400000 && reg < 0x406000) ||
+ (reg >= 0x480000 && reg < 0x482000) ||
+ (reg >= 0x490000 && reg < 0x498000) ||
+ (reg >= 0x4a8000 && reg < 0x4aa000))
+ return true;
+ else
+ return false;
+}
+
+static bool wm5110_is_adsp_memory(struct device *dev, unsigned int reg)
+{
+ struct arizona *arizona = dev_get_drvdata(dev);
+
+ switch (arizona->rev) {
+ case 0 ... 2:
+ return wm5110_is_rev_b_adsp_memory(reg);
+ default:
+ return wm5110_is_rev_d_adsp_memory(reg);
+ }
+}
+
static bool wm5110_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
@@ -2308,7 +2367,7 @@ static bool wm5110_readable_register(struct device *dev,
unsigned int reg)
case ARIZONA_DSP4_STATUS_3:
return true;
default:
- return false;
+ return wm5110_is_adsp_memory(dev, reg);
}
}
@@ -2368,16 +2427,18 @@ static bool wm5110_volatile_register(struct device
*dev, unsigned int reg)
case ARIZONA_DSP4_STATUS_3:
return true;
default:
- return false;
+ return wm5110_is_adsp_memory(dev, reg);
}
}
+#define WM5110_MAX_REGISTER 0x4a9fff
+
const struct regmap_config wm5110_spi_regmap = {
.reg_bits = 32,
.pad_bits = 16,
.val_bits = 16,
- .max_register = ARIZONA_DSP1_STATUS_2,
+ .max_register = WM5110_MAX_REGISTER,
.readable_reg = wm5110_readable_register,
.volatile_reg = wm5110_volatile_register,
@@ -2391,7 +2452,7 @@ const struct regmap_config wm5110_i2c_regmap = {
.reg_bits = 32,
.val_bits = 16,
- .max_register = ARIZONA_DSP1_STATUS_2,
+ .max_register = WM5110_MAX_REGISTER,
.readable_reg = wm5110_readable_register,
.volatile_reg = wm5110_volatile_register,
--
1.7.2.5
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