[PATCH 3/4] pinctrl: qcom: apq8064: Add multi copy support

[Andy Gross <agross@codeaurora.org>]

This patch adds multiple copy support for functions that can be mapped to more
than one pin and that also require an additional mux configuration setting to
work properly.

Signed-off-by: Andy Gross <agross@codeaurora.org>
---
 .../bindings/pinctrl/qcom,apq8064-pinctrl.txt      |    3 +-
 drivers/pinctrl/qcom/pinctrl-apq8064.c             |   29 +++++++++++++++-----
 2 files changed, 24 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,apq8064-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,apq8064-pinctrl.txt
index a7bde64..37ffe9b 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,apq8064-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,apq8064-pinctrl.txt
@@ -50,7 +50,8 @@ Valid values for function are:
   gsbi4_cam_i2c, gsbi5, gsbi5_spi_cs1, gsbi5_spi_cs2, gsbi5_spi_cs3, gsbi6,
   gsbi6_spi_cs1, gsbi6_spi_cs2, gsbi6_spi_cs3, gsbi7, gsbi7_spi_cs1,
   gsbi7_spi_cs2, gsbi7_spi_cs3, gsbi_cam_i2c, hdmi, mi2s, riva_bt, riva_fm,
-  riva_wlan, sdc2, sdc4, slimbus, spkr_i2s, tsif1, tsif2, usb2_hsic, ps_hold
+  riva_wlan, sdc2, sdc4, slimbus_a, slimbus_b, spkr_i2s, tsif1, tsif2,
+  usb2_hsic, ps_hold
 
 Example:
 
diff --git a/drivers/pinctrl/qcom/pinctrl-apq8064.c b/drivers/pinctrl/qcom/pinctrl-apq8064.c
index cd96699..e2d1dc1 100644
--- a/drivers/pinctrl/qcom/pinctrl-apq8064.c
+++ b/drivers/pinctrl/qcom/pinctrl-apq8064.c
@@ -224,6 +224,16 @@ static const unsigned int sdc3_data_pins[] = { 95 };
 		.ngroups = ARRAY_SIZE(fname##_groups),	\
 	}
 
+#define FUNCTION_MULTI_COPY(fname, reg, value)		\
+	[APQ_MUX_##fname] = {				\
+		.name = #fname,				\
+		.groups = fname##_groups,		\
+		.ngroups = ARRAY_SIZE(fname##_groups),	\
+		.requires_copy_select = 1,		\
+		.copy_select_reg = reg,			\
+		.copy_select_value = value,		\
+	}
+
 #define PINGROUP(id, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10) \
 	{						\
 		.name = "gpio" #id,			\
@@ -321,7 +331,8 @@ enum apq8064_functions {
 	APQ_MUX_riva_wlan,
 	APQ_MUX_sdc2,
 	APQ_MUX_sdc4,
-	APQ_MUX_slimbus,
+	APQ_MUX_slimbus_a,
+	APQ_MUX_slimbus_b,
 	APQ_MUX_spkr_i2s,
 	APQ_MUX_tsif1,
 	APQ_MUX_tsif2,
@@ -432,9 +443,12 @@ static const char * const sdc2_groups[] = {
 static const char * const sdc4_groups[] = {
 	"gpio63", "gpio64", "gpio65", "gpio66", "gpio67", "gpio68"
 };
-static const char * const slimbus_groups[] = {
+static const char * const slimbus_a_groups[] = {
 	"gpio40", "gpio41"
 };
+static const char * const slimbus_b_groups[] = {
+	"gpio30", "gpio31"
+};
 static const char * const spkr_i2s_groups[] = {
 	"gpio47", "gpio48", "gpio49", "gpio50"
 };
@@ -478,7 +492,8 @@ static const struct msm_function apq8064_functions[] = {
 	FUNCTION(riva_wlan),
 	FUNCTION(sdc2),
 	FUNCTION(sdc4),
-	FUNCTION(slimbus),
+	FUNCTION_MULTI_COPY(slimbus_a, 0x2074, 0),
+	FUNCTION_MULTI_COPY(slimbus_b, 0x2074, 1),
 	FUNCTION(spkr_i2s),
 	FUNCTION(tsif1),
 	FUNCTION(tsif2),
@@ -517,8 +532,8 @@ static const struct msm_pingroup apq8064_groups[] = {
 	PINGROUP(27, mi2s, NA, NA, NA, NA, NA, NA, NA, NA, NA),
 	PINGROUP(28, mi2s, NA, NA, NA, NA, NA, NA, NA, NA, NA),
 	PINGROUP(29, mi2s, NA, NA, NA, NA, NA, NA, NA, NA, NA),
-	PINGROUP(30, mi2s, NA, NA, NA, NA, NA, NA, NA, NA, NA),
-	PINGROUP(31, mi2s, NA, gsbi5_spi_cs2, gsbi6_spi_cs2, gsbi7_spi_cs2, NA, NA, NA, NA, NA),
+	PINGROUP(30, mi2s, slimbus_b, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(31, mi2s, slimbus_b, gsbi5_spi_cs2, gsbi6_spi_cs2, gsbi7_spi_cs2, NA, NA, NA, NA, NA),
 	PINGROUP(32, mi2s, NA, NA, NA, NA, gsbi5_spi_cs3, gsbi6_spi_cs3, gsbi7_spi_cs3, NA, NA),
 	PINGROUP(33, mi2s, NA, NA, NA, NA, NA, NA, NA, NA, NA),
 	PINGROUP(34, codec_mic_i2s, NA, NA, NA, NA, NA, NA, NA, NA, NA),
@@ -527,8 +542,8 @@ static const struct msm_pingroup apq8064_groups[] = {
 	PINGROUP(37, codec_mic_i2s, NA, NA, NA, NA, NA, NA, NA, NA, NA),
 	PINGROUP(38, codec_mic_i2s, NA, NA, NA, NA, NA, NA, NA, NA, NA),
 	PINGROUP(39, codec_spkr_i2s, NA, NA, NA, NA, NA, NA, NA, NA, NA),
-	PINGROUP(40, slimbus, codec_spkr_i2s, NA, NA, NA, NA, NA, NA, NA, NA),
-	PINGROUP(41, slimbus, codec_spkr_i2s, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(40, slimbus_a, codec_spkr_i2s, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(41, slimbus_a, codec_spkr_i2s, NA, NA, NA, NA, NA, NA, NA, NA),
 	PINGROUP(42, codec_spkr_i2s, NA, NA, NA, NA, NA, NA, NA, NA, NA),
 	PINGROUP(43, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
 	PINGROUP(44, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
-- 
Qualcomm Innovation Center, Inc
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project