ipq806x: Add support to configure ipq40xx GPIO_PULL bits

GPIO_PULL bits configurations in TLMM_GPIO_CFG register
differs for IPQ40xx from rest of the other qcom SoC's.
This change add support to configure the msm_gpio_pull
bits for ipq40xx, It is required to fix the proper
configurations of gpio-pull bits for nand pins mux.

Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>

1 files changed, 260 insertions, 0 deletions

diff --git a/target/linux/ipq806x/patches-4.9/859-msm-pinctrl-Add-support-to-configure-ipq40xx-GPIO_PU.patch b/target/linux/ipq806x/patches-4.9/859-msm-pinctrl-Add-support-to-configure-ipq40xx-GPIO_PU.patch
new file mode 100644
index 0000000000..bac9e78772
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.9/859-msm-pinctrl-Add-support-to-configure-ipq40xx-GPIO_PU.patch
@@ -0,0 +1,260 @@
+From e77af7de404eb464f7da9e0daeb8b362cc66a7ba Mon Sep 17 00:00:00 2001
+From: Ram Chandra Jangir <rjangir@codeaurora.org>
+Date: Tue, 9 May 2017 11:45:00 +0530
+Subject: [PATCH] msm: pinctrl: Add support to configure ipq40xx GPIO_PULL bits
+
+GPIO_PULL bits configurations in TLMM_GPIO_CFG register
+differs for IPQ40xx from rest of the other qcom SoC's.
+This change add support to configure the msm_gpio_pull
+bits for ipq40xx, It is required to fix the proper
+configurations of gpio-pull bits for nand pins mux.
+
+IPQ40xx SoC:
+2'b10: Internal pull up enable.
+2'b11: Unsupport
+
+For other SoC's:
+2'b10: Keeper
+2'b11: Pull-Up
+
+Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
+---
+ drivers/pinctrl/qcom/pinctrl-apq8064.c |  1 +
+ drivers/pinctrl/qcom/pinctrl-apq8084.c |  1 +
+ drivers/pinctrl/qcom/pinctrl-ipq4019.c |  8 ++++++++
+ drivers/pinctrl/qcom/pinctrl-ipq8064.c |  1 +
+ drivers/pinctrl/qcom/pinctrl-mdm9615.c |  1 +
+ drivers/pinctrl/qcom/pinctrl-msm.c     | 21 ++++++++-------------
+ drivers/pinctrl/qcom/pinctrl-msm.h     | 19 +++++++++++++++++++
+ drivers/pinctrl/qcom/pinctrl-msm8660.c |  1 +
+ drivers/pinctrl/qcom/pinctrl-msm8916.c |  1 +
+ drivers/pinctrl/qcom/pinctrl-msm8960.c |  1 +
+ drivers/pinctrl/qcom/pinctrl-msm8x74.c |  1 +
+ 11 files changed, 43 insertions(+), 13 deletions(-)
+
+diff --git a/drivers/pinctrl/qcom/pinctrl-apq8064.c b/drivers/pinctrl/qcom/pinctrl-apq8064.c
+index cd96699..63e9a7e 100644
+--- a/drivers/pinctrl/qcom/pinctrl-apq8064.c
++++ b/drivers/pinctrl/qcom/pinctrl-apq8064.c
+@@ -597,6 +597,7 @@ static const struct msm_pinctrl_soc_data apq8064_pinctrl = {
+	.groups = apq8064_groups,
+	.ngroups = ARRAY_SIZE(apq8064_groups),
+	.ngpios = NUM_GPIO_PINGROUPS,
++	.gpio_pull = &msm_gpio_pull,
+ };
+
+ static int apq8064_pinctrl_probe(struct platform_device *pdev)
+diff --git a/drivers/pinctrl/qcom/pinctrl-apq8084.c b/drivers/pinctrl/qcom/pinctrl-apq8084.c
+index d07e8df..892250e 100644
+--- a/drivers/pinctrl/qcom/pinctrl-apq8084.c
++++ b/drivers/pinctrl/qcom/pinctrl-apq8084.c
+@@ -1206,6 +1206,7 @@ static const struct msm_pinctrl_soc_data apq8084_pinctrl = {
+	.groups = apq8084_groups,
+	.ngroups = ARRAY_SIZE(apq8084_groups),
+	.ngpios = NUM_GPIO_PINGROUPS,
++	.gpio_pull = &msm_gpio_pull,
+ };
+
+ static int apq8084_pinctrl_probe(struct platform_device *pdev)
+diff --git a/drivers/pinctrl/qcom/pinctrl-ipq4019.c b/drivers/pinctrl/qcom/pinctrl-ipq4019.c
+index 571eb51..040e03c 100644
+--- a/drivers/pinctrl/qcom/pinctrl-ipq4019.c
++++ b/drivers/pinctrl/qcom/pinctrl-ipq4019.c
+@@ -1531,6 +1531,13 @@ static const struct msm_pingroup ipq4019_groups[] = {
+	PINGROUP(99, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+ };
+
++static const struct msm_pinctrl_gpio_pull ipq4019_gpio_pull = {
++	.no_pull = 0,
++	.pull_down = 1,
++	.keeper = 0,
++	.pull_up = 2,
++};
++
+ static const struct msm_pinctrl_soc_data ipq4019_pinctrl = {
+	.pins = ipq4019_pins,
+	.npins = ARRAY_SIZE(ipq4019_pins),
+@@ -1539,6 +1546,7 @@ static const struct msm_pinctrl_soc_data ipq4019_pinctrl = {
+	.groups = ipq4019_groups,
+	.ngroups = ARRAY_SIZE(ipq4019_groups),
+	.ngpios = 100,
++	.gpio_pull = &ipq4019_gpio_pull,
+ };
+
+ static int ipq4019_pinctrl_probe(struct platform_device *pdev)
+diff --git a/drivers/pinctrl/qcom/pinctrl-ipq8064.c b/drivers/pinctrl/qcom/pinctrl-ipq8064.c
+index bcb29c0..a927251 100644
+--- a/drivers/pinctrl/qcom/pinctrl-ipq8064.c
++++ b/drivers/pinctrl/qcom/pinctrl-ipq8064.c
+@@ -630,6 +630,7 @@ static const struct msm_pinctrl_soc_data ipq8064_pinctrl = {
+	.groups = ipq8064_groups,
+	.ngroups = ARRAY_SIZE(ipq8064_groups),
+	.ngpios = NUM_GPIO_PINGROUPS,
++	.gpio_pull = &msm_gpio_pull,
+ };
+
+ static int ipq8064_pinctrl_probe(struct platform_device *pdev)
+diff --git a/drivers/pinctrl/qcom/pinctrl-mdm9615.c b/drivers/pinctrl/qcom/pinctrl-mdm9615.c
+index 2b8f452..67e6b75 100644
+--- a/drivers/pinctrl/qcom/pinctrl-mdm9615.c
++++ b/drivers/pinctrl/qcom/pinctrl-mdm9615.c
+@@ -444,6 +444,7 @@ static const struct msm_pinctrl_soc_data mdm9615_pinctrl = {
+	.groups = mdm9615_groups,
+	.ngroups = ARRAY_SIZE(mdm9615_groups),
+	.ngpios = NUM_GPIO_PINGROUPS,
++	.gpio_pull = &msm_gpio_pull,
+ };
+
+ static int mdm9615_pinctrl_probe(struct platform_device *pdev)
+diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
+index c406b61..ae361a1 100644
+--- a/drivers/pinctrl/qcom/pinctrl-msm.c
++++ b/drivers/pinctrl/qcom/pinctrl-msm.c
+@@ -203,11 +203,6 @@ static int msm_config_reg(struct msm_pinctrl *pctrl,
+	return 0;
+ }
+
+-#define MSM_NO_PULL	0
+-#define MSM_PULL_DOWN	1
+-#define MSM_KEEPER	2
+-#define MSM_PULL_UP	3
+-
+ static unsigned msm_regval_to_drive(u32 val)
+ {
+	return (val + 1) * 2;
+@@ -238,16 +233,16 @@ static int msm_config_group_get(struct pinctrl_dev *pctldev,
+	/* Convert register value to pinconf value */
+	switch (param) {
+	case PIN_CONFIG_BIAS_DISABLE:
+-		arg = arg == MSM_NO_PULL;
++		arg = arg == pctrl->soc->gpio_pull->no_pull;
+		break;
+	case PIN_CONFIG_BIAS_PULL_DOWN:
+-		arg = arg == MSM_PULL_DOWN;
++		arg = arg == pctrl->soc->gpio_pull->pull_down;
+		break;
+	case PIN_CONFIG_BIAS_BUS_HOLD:
+-		arg = arg == MSM_KEEPER;
++		arg = arg == pctrl->soc->gpio_pull->keeper;
+		break;
+	case PIN_CONFIG_BIAS_PULL_UP:
+-		arg = arg == MSM_PULL_UP;
++		arg = arg == pctrl->soc->gpio_pull->pull_up;
+		break;
+	case PIN_CONFIG_DRIVE_STRENGTH:
+		arg = msm_regval_to_drive(arg);
+@@ -304,16 +299,16 @@ static int msm_config_group_set(struct pinctrl_dev *pctldev,
+		/* Convert pinconf values to register values */
+		switch (param) {
+		case PIN_CONFIG_BIAS_DISABLE:
+-			arg = MSM_NO_PULL;
++			arg = pctrl->soc->gpio_pull->no_pull;
+			break;
+		case PIN_CONFIG_BIAS_PULL_DOWN:
+-			arg = MSM_PULL_DOWN;
++			arg = pctrl->soc->gpio_pull->pull_down;
+			break;
+		case PIN_CONFIG_BIAS_BUS_HOLD:
+-			arg = MSM_KEEPER;
++			arg = pctrl->soc->gpio_pull->keeper;
+			break;
+		case PIN_CONFIG_BIAS_PULL_UP:
+-			arg = MSM_PULL_UP;
++			arg = pctrl->soc->gpio_pull->pull_up;
+			break;
+		case PIN_CONFIG_DRIVE_STRENGTH:
+			/* Check for invalid values */
+diff --git a/drivers/pinctrl/qcom/pinctrl-msm.h b/drivers/pinctrl/qcom/pinctrl-msm.h
+index 54fdd04..090aed9 100644
+--- a/drivers/pinctrl/qcom/pinctrl-msm.h
++++ b/drivers/pinctrl/qcom/pinctrl-msm.h
+@@ -98,6 +98,16 @@ struct msm_pingroup {
+ };
+
+ /**
++ * struct msm_pinctrl_gpio_pull - pinctrl pull value bit field descriptor
++ */
++struct msm_pinctrl_gpio_pull {
++	unsigned no_pull;
++	unsigned pull_down;
++	unsigned keeper;
++	unsigned pull_up;
++};
++
++/**
+  * struct msm_pinctrl_soc_data - Qualcomm pin controller driver configuration
+  * @pins:       An array describing all pins the pin controller affects.
+  * @npins:      The number of entries in @pins.
+@@ -106,6 +116,7 @@ struct msm_pingroup {
+  * @groups:     An array describing all pin groups the pin SoC supports.
+  * @ngroups:    The numbmer of entries in @groups.
+  * @ngpio:      The number of pingroups the driver should expose as GPIOs.
++ * @gpio_pull_val: The pull value bit field descriptor.
+  */
+ struct msm_pinctrl_soc_data {
+	const struct pinctrl_pin_desc *pins;
+@@ -115,6 +126,14 @@ struct msm_pinctrl_soc_data {
+	const struct msm_pingroup *groups;
+	unsigned ngroups;
+	unsigned ngpios;
++	const struct msm_pinctrl_gpio_pull *gpio_pull;
++};
++
++static const struct msm_pinctrl_gpio_pull msm_gpio_pull = {
++	.no_pull = 0,
++	.pull_down = 1,
++	.keeper = 2,
++	.pull_up = 3,
+ };
+
+ int msm_pinctrl_probe(struct platform_device *pdev,
+diff --git a/drivers/pinctrl/qcom/pinctrl-msm8660.c b/drivers/pinctrl/qcom/pinctrl-msm8660.c
+index 5591d09..a8899d9 100644
+--- a/drivers/pinctrl/qcom/pinctrl-msm8660.c
++++ b/drivers/pinctrl/qcom/pinctrl-msm8660.c
+@@ -979,6 +979,7 @@ static const struct msm_pinctrl_soc_data msm8660_pinctrl = {
+	.groups = msm8660_groups,
+	.ngroups = ARRAY_SIZE(msm8660_groups),
+	.ngpios = NUM_GPIO_PINGROUPS,
++	.gpio_pull = &msm_gpio_pull,
+ };
+
+ static int msm8660_pinctrl_probe(struct platform_device *pdev)
+diff --git a/drivers/pinctrl/qcom/pinctrl-msm8916.c b/drivers/pinctrl/qcom/pinctrl-msm8916.c
+index 20ebf24..c45c2bb 100644
+--- a/drivers/pinctrl/qcom/pinctrl-msm8916.c
++++ b/drivers/pinctrl/qcom/pinctrl-msm8916.c
+@@ -967,6 +967,7 @@ static const struct msm_pinctrl_soc_data msm8916_pinctrl = {
+	.groups = msm8916_groups,
+	.ngroups = ARRAY_SIZE(msm8916_groups),
+	.ngpios = NUM_GPIO_PINGROUPS,
++	.gpio_pull = &msm_gpio_pull,
+ };
+
+ static int msm8916_pinctrl_probe(struct platform_device *pdev)
+diff --git a/drivers/pinctrl/qcom/pinctrl-msm8960.c b/drivers/pinctrl/qcom/pinctrl-msm8960.c
+index ed23e36..9411176 100644
+--- a/drivers/pinctrl/qcom/pinctrl-msm8960.c
++++ b/drivers/pinctrl/qcom/pinctrl-msm8960.c
+@@ -1244,6 +1244,7 @@ static const struct msm_pinctrl_soc_data msm8960_pinctrl = {
+	.groups = msm8960_groups,
+	.ngroups = ARRAY_SIZE(msm8960_groups),
+	.ngpios = NUM_GPIO_PINGROUPS,
++	.gpio_pull = &msm_gpio_pull,
+ };
+
+ static int msm8960_pinctrl_probe(struct platform_device *pdev)
+diff --git a/drivers/pinctrl/qcom/pinctrl-msm8x74.c b/drivers/pinctrl/qcom/pinctrl-msm8x74.c
+index 9eb63d3..7740875 100644
+--- a/drivers/pinctrl/qcom/pinctrl-msm8x74.c
++++ b/drivers/pinctrl/qcom/pinctrl-msm8x74.c
+@@ -1069,6 +1069,7 @@ static const struct msm_pinctrl_soc_data msm8x74_pinctrl = {
+	.groups = msm8x74_groups,
+	.ngroups = ARRAY_SIZE(msm8x74_groups),
+	.ngpios = NUM_GPIO_PINGROUPS,
++	.gpio_pull = &msm_gpio_pull,
+ };
+
+ static int msm8x74_pinctrl_probe(struct platform_device *pdev)
+--
+2.7.2