mfd: Add support for stmpe variant 610

STMPE610 is very much like STMPE811, except the number of gpio pins, which is 8
in 811 and 6 in 610. This patch adds support for variant 610. STMPE610 will
share most of the code with STMPE811.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 18 insertions, 2 deletions

diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index 83bacde6a7cb..67ff3dc5bb45 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -321,7 +321,7 @@ static struct mfd_cell stmpe_keypad_cell = {
 };
 
 /*
- * Touchscreen (STMPE811)
+ * Touchscreen (STMPE811 or STMPE610)
  */
 
 static struct resource stmpe_ts_resources[] = {
@@ -346,7 +346,7 @@ static struct mfd_cell stmpe_ts_cell = {
 };
 
 /*
- * STMPE811
+ * STMPE811 or STMPE610
  */
 
 static const u8 stmpe811_regs[] = {
@@ -417,6 +417,21 @@ static struct stmpe_variant_info stmpe811 = {
         .get_altfunc    = stmpe811_get_altfunc,
 };
 
+/* Similar to 811, except number of gpios */
+static struct stmpe_variant_info stmpe610 = {
+        .name           = "stmpe610",
+        .id_val         = 0x0811,
+        .id_mask        = 0xffff,
+        .num_gpios      = 6,
+        .af_bits        = 1,
+        .regs           = stmpe811_regs,
+        .blocks         = stmpe811_blocks,
+        .num_blocks     = ARRAY_SIZE(stmpe811_blocks),
+        .num_irqs       = STMPE811_NR_INTERNAL_IRQS,
+        .enable         = stmpe811_enable,
+        .get_altfunc    = stmpe811_get_altfunc,
+};
+
 /*
  * STMPE1601
  */
@@ -651,6 +666,7 @@ static struct stmpe_variant_info stmpe2403 = {
 };
 
 static struct stmpe_variant_info *stmpe_variant_info[] = {
+        [STMPE610]      = &stmpe610,
         [STMPE811]      = &stmpe811,
         [STMPE1601]     = &stmpe1601,
         [STMPE2401]     = &stmpe2401,