pinctrl: qcom: make compatible with linux DTs
The pinctrl and GPIO drivers are currently heavily incompatible with
upstream. Most Qualcomm pinctrl blocks feature "tiles" of pins, each at
it's own address. Introduce support for these by allowing the soc driver
to specify per-pin register offsets similarly to the Linux driver.
Adjust the GPIO driver to handle these too, and finally enable support
for all pins with the same numbering as used in Linux.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/arch/arm/mach-snapdragon/include/mach/gpio.h b/arch/arm/mach-snapdragon/include/mach/gpio.h
index bbc2bc1..8dac62f 100644
--- a/arch/arm/mach-snapdragon/include/mach/gpio.h
+++ b/arch/arm/mach-snapdragon/include/mach/gpio.h
@@ -1,8 +1,28 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
- * Empty gpio.h
+ * Qualcomm common pin control data.
*
- * This file must stay as arch/arm/include/asm/gpio.h requires it.
- *
- * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
+ * Copyright (C) 2023 Linaro Ltd.
*/
+#ifndef _QCOM_GPIO_H_
+#define _QCOM_GPIO_H_
+
+#include <asm/types.h>
+#include <stdbool.h>
+
+struct msm_pin_data {
+ int pin_count;
+ const unsigned int *pin_offsets;
+};
+
+static inline u32 qcom_pin_offset(const unsigned int *offs, unsigned int selector)
+{
+ u32 out = (selector * 0x1000);
+
+ if (offs)
+ return out + offs[selector];
+
+ return out;
+}
+
+#endif /* _QCOM_GPIO_H_ */