Merge branch 'ib-qcom-acpi' into devel

4 files changed, 55 insertions, 2 deletions

diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
index 2e66ab72c10b..aafbe932424f 100644
--- a/drivers/pinctrl/qcom/Kconfig
+++ b/drivers/pinctrl/qcom/Kconfig
@@ -168,7 +168,7 @@ config PINCTRL_SDM660
 
 config PINCTRL_SDM845
        tristate "Qualcomm Technologies Inc SDM845 pin controller driver"
-       depends on GPIOLIB && OF
+       depends on GPIOLIB && (OF || ACPI)
        select PINCTRL_MSM
        help
          This is the pinctrl, pinmux, pinconf and gpiolib driver for the
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index ee8119879c4c..3ac740b36508 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -607,8 +607,23 @@ static int msm_gpio_init_valid_mask(struct gpio_chip *chip)
 	int ret;
 	unsigned int len, i;
 	unsigned int max_gpios = pctrl->soc->ngpios;
+	const int *reserved = pctrl->soc->reserved_gpios;
 	u16 *tmp;
 
+	/* Driver provided reserved list overrides DT and ACPI */
+	if (reserved) {
+		bitmap_fill(chip->valid_mask, max_gpios);
+		for (i = 0; reserved[i] >= 0; i++) {
+			if (i >= max_gpios || reserved[i] >= max_gpios) {
+				dev_err(pctrl->dev, "invalid list of reserved GPIOs\n");
+				return -EINVAL;
+			}
+			clear_bit(reserved[i], chip->valid_mask);
+		}
+
+		return 0;
+	}
+
 	/* The number of GPIOs in the ACPI tables */
 	len = ret = device_property_read_u16_array(pctrl->dev, "gpios", NULL,
 						   0);
@@ -964,6 +979,9 @@ static void msm_gpio_irq_handler(struct irq_desc *desc)
 
 static bool msm_gpio_needs_valid_mask(struct msm_pinctrl *pctrl)
 {
+	if (pctrl->soc->reserved_gpios)
+		return true;
+
 	return device_property_read_u16_array(pctrl->dev, "gpios", NULL, 0) > 0;
 }
 
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.h b/drivers/pinctrl/qcom/pinctrl-msm.h
index c12048e54a6f..23b93ae92269 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.h
+++ b/drivers/pinctrl/qcom/pinctrl-msm.h
@@ -121,6 +121,7 @@ struct msm_pinctrl_soc_data {
 	bool pull_no_keeper;
 	const char *const *tiles;
 	unsigned int ntiles;
+	const int *reserved_gpios;
 };
 
 extern const struct dev_pm_ops msm_pinctrl_dev_pm_ops;
diff --git a/drivers/pinctrl/qcom/pinctrl-sdm845.c b/drivers/pinctrl/qcom/pinctrl-sdm845.c
index e4e5acade086..06790e5ece6c 100644
--- a/drivers/pinctrl/qcom/pinctrl-sdm845.c
+++ b/drivers/pinctrl/qcom/pinctrl-sdm845.c
@@ -3,6 +3,7 @@
  * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
  */
 
+#include <linux/acpi.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
@@ -1277,6 +1278,10 @@ static const struct msm_pingroup sdm845_groups[] = {
 	SDC_QDSD_PINGROUP(sdc2_data, 0x99a000, 9, 0),
 };
 
+static const int sdm845_acpi_reserved_gpios[] = {
+	0, 1, 2, 3, 81, 82, 83, 84, -1
+};
+
 static const struct msm_pinctrl_soc_data sdm845_pinctrl = {
 	.pins = sdm845_pins,
 	.npins = ARRAY_SIZE(sdm845_pins),
@@ -1287,11 +1292,39 @@ static const struct msm_pinctrl_soc_data sdm845_pinctrl = {
 	.ngpios = 151,
 };
 
+static const struct msm_pinctrl_soc_data sdm845_acpi_pinctrl = {
+	.pins = sdm845_pins,
+	.npins = ARRAY_SIZE(sdm845_pins),
+	.groups = sdm845_groups,
+	.ngroups = ARRAY_SIZE(sdm845_groups),
+	.reserved_gpios = sdm845_acpi_reserved_gpios,
+	.ngpios = 150,
+};
+
 static int sdm845_pinctrl_probe(struct platform_device *pdev)
 {
-	return msm_pinctrl_probe(pdev, &sdm845_pinctrl);
+	int ret;
+
+	if (pdev->dev.of_node) {
+		ret = msm_pinctrl_probe(pdev, &sdm845_pinctrl);
+	} else if (has_acpi_companion(&pdev->dev)) {
+		ret = msm_pinctrl_probe(pdev, &sdm845_acpi_pinctrl);
+	} else {
+		dev_err(&pdev->dev, "DT and ACPI disabled\n");
+		return -EINVAL;
+	}
+
+	return ret;
 }
 
+#if CONFIG_ACPI
+static const struct acpi_device_id sdm845_pinctrl_acpi_match[] = {
+	{ "QCOM0217"},
+	{ },
+};
+MODULE_DEVICE_TABLE(acpi, sdm845_pinctrl_acpi_match);
+#endif
+
 static const struct of_device_id sdm845_pinctrl_of_match[] = {
 	{ .compatible = "qcom,sdm845-pinctrl", },
 	{ },
@@ -1302,6 +1335,7 @@ static struct platform_driver sdm845_pinctrl_driver = {
 		.name = "sdm845-pinctrl",
 		.pm = &msm_pinctrl_dev_pm_ops,
 		.of_match_table = sdm845_pinctrl_of_match,
+		.acpi_match_table = ACPI_PTR(sdm845_pinctrl_acpi_match),
 	},
 	.probe = sdm845_pinctrl_probe,
 	.remove = msm_pinctrl_remove,