Merge tag 'icc-5.8-rc1' of https://git.linaro.org/people/georgi.djakov/linux into char-misc-next

Georgi writes:

interconnect changes for 5.8

These are the interconnect changes for the 5.8-rc1 merge window:

Core changes:
- Convert the framework core from tristate to bool to make handling
dependencies between other core frameworks easier
- Add of_icc_get_by_index()
- Add devm_of_icc_get() helper function
- Add icc_enable() and icc_disable() helpers

New drivers:
- Platform driver for NXP i.MX8MM SoC
- Platform driver for NXP i.MX8MN SoC
- Platform driver for NXP i.MX8MQ SoC

Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>

* tag 'icc-5.8-rc1' of https://git.linaro.org/people/georgi.djakov/linux:
  interconnect: Remove unused module exit code from core
  interconnect: Disallow interconnect core to be built as a module
  interconnect: Add of_icc_get_by_index() helper function
  interconnect: Add helpers for enabling/disabling a path
  interconnect: imx: Fix return value check in imx_icc_node_init_qos()
  interconnect: imx: Add platform driver for imx8mn
  interconnect: imx: Add platform driver for imx8mq
  interconnect: imx: Add platform driver for imx8mm
  interconnect: Add imx core driver
  dt-bindings: interconnect: Add bindings for imx8m noc
  interconnect: Add devm_of_icc_get() as exported API for users

4 files changed, 164 insertions, 0 deletions

diff --git a/include/dt-bindings/interconnect/imx8mm.h b/include/dt-bindings/interconnect/imx8mm.h
new file mode 100644
index 000000000000..8f10bb06cb59
--- /dev/null
+++ b/include/dt-bindings/interconnect/imx8mm.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Interconnect framework driver for i.MX SoC
+ *
+ * Copyright (c) 2019, BayLibre
+ * Copyright (c) 2019-2020, NXP
+ * Author: Alexandre Bailon <abailon@baylibre.com>
+ */
+
+#ifndef __DT_BINDINGS_INTERCONNECT_IMX8MM_H
+#define __DT_BINDINGS_INTERCONNECT_IMX8MM_H
+
+#define IMX8MM_ICN_NOC		1
+#define IMX8MM_ICS_DRAM		2
+#define IMX8MM_ICS_OCRAM	3
+#define IMX8MM_ICM_A53		4
+
+#define IMX8MM_ICM_VPU_H1	5
+#define IMX8MM_ICM_VPU_G1	6
+#define IMX8MM_ICM_VPU_G2	7
+#define IMX8MM_ICN_VIDEO	8
+
+#define IMX8MM_ICM_GPU2D	9
+#define IMX8MM_ICM_GPU3D	10
+#define IMX8MM_ICN_GPU		11
+
+#define IMX8MM_ICM_CSI		12
+#define IMX8MM_ICM_LCDIF	13
+#define IMX8MM_ICN_MIPI		14
+
+#define IMX8MM_ICM_USB1		15
+#define IMX8MM_ICM_USB2		16
+#define IMX8MM_ICM_PCIE		17
+#define IMX8MM_ICN_HSIO		18
+
+#define IMX8MM_ICM_SDMA2	19
+#define IMX8MM_ICM_SDMA3	20
+#define IMX8MM_ICN_AUDIO	21
+
+#define IMX8MM_ICN_ENET		22
+#define IMX8MM_ICM_ENET		23
+
+#define IMX8MM_ICN_MAIN		24
+#define IMX8MM_ICM_NAND		25
+#define IMX8MM_ICM_SDMA1	26
+#define IMX8MM_ICM_USDHC1	27
+#define IMX8MM_ICM_USDHC2	28
+#define IMX8MM_ICM_USDHC3	29
+
+#endif /* __DT_BINDINGS_INTERCONNECT_IMX8MM_H */
diff --git a/include/dt-bindings/interconnect/imx8mn.h b/include/dt-bindings/interconnect/imx8mn.h
new file mode 100644
index 000000000000..307b977100b6
--- /dev/null
+++ b/include/dt-bindings/interconnect/imx8mn.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Interconnect framework driver for i.MX SoC
+ *
+ * Copyright (c) 2019-2020, NXP
+ */
+
+#ifndef __DT_BINDINGS_INTERCONNECT_IMX8MN_H
+#define __DT_BINDINGS_INTERCONNECT_IMX8MN_H
+
+#define IMX8MN_ICN_NOC		1
+#define IMX8MN_ICS_DRAM		2
+#define IMX8MN_ICS_OCRAM	3
+#define IMX8MN_ICM_A53		4
+
+#define IMX8MN_ICM_GPU		5
+#define IMX8MN_ICN_GPU		6
+
+#define IMX8MN_ICM_CSI1		7
+#define IMX8MN_ICM_CSI2		8
+#define IMX8MN_ICM_ISI		9
+#define IMX8MN_ICM_LCDIF	10
+#define IMX8MN_ICN_MIPI		11
+
+#define IMX8MN_ICM_USB		12
+
+#define IMX8MN_ICM_SDMA2	13
+#define IMX8MN_ICM_SDMA3	14
+#define IMX8MN_ICN_AUDIO	15
+
+#define IMX8MN_ICN_ENET		16
+#define IMX8MN_ICM_ENET		17
+
+#define IMX8MN_ICM_NAND		18
+#define IMX8MN_ICM_SDMA1	19
+#define IMX8MN_ICM_USDHC1	20
+#define IMX8MN_ICM_USDHC2	21
+#define IMX8MN_ICM_USDHC3	22
+#define IMX8MN_ICN_MAIN		23
+
+#endif /* __DT_BINDINGS_INTERCONNECT_IMX8MN_H */
diff --git a/include/dt-bindings/interconnect/imx8mq.h b/include/dt-bindings/interconnect/imx8mq.h
new file mode 100644
index 000000000000..1a4cae7f8be2
--- /dev/null
+++ b/include/dt-bindings/interconnect/imx8mq.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Interconnect framework driver for i.MX SoC
+ *
+ * Copyright (c) 2019-2020, NXP
+ */
+
+#ifndef __DT_BINDINGS_INTERCONNECT_IMX8MQ_H
+#define __DT_BINDINGS_INTERCONNECT_IMX8MQ_H
+
+#define IMX8MQ_ICN_NOC		1
+#define IMX8MQ_ICS_DRAM		2
+#define IMX8MQ_ICS_OCRAM	3
+#define IMX8MQ_ICM_A53		4
+
+#define IMX8MQ_ICM_VPU		5
+#define IMX8MQ_ICN_VIDEO	6
+
+#define IMX8MQ_ICM_GPU		7
+#define IMX8MQ_ICN_GPU		8
+
+#define IMX8MQ_ICM_DCSS		9
+#define IMX8MQ_ICN_DCSS		10
+
+#define IMX8MQ_ICM_USB1		11
+#define IMX8MQ_ICM_USB2		12
+#define IMX8MQ_ICN_USB		13
+
+#define IMX8MQ_ICM_CSI1		14
+#define IMX8MQ_ICM_CSI2		15
+#define IMX8MQ_ICM_LCDIF	16
+#define IMX8MQ_ICN_DISPLAY	17
+
+#define IMX8MQ_ICM_SDMA2	18
+#define IMX8MQ_ICN_AUDIO	19
+
+#define IMX8MQ_ICN_ENET		20
+#define IMX8MQ_ICM_ENET		21
+
+#define IMX8MQ_ICM_SDMA1	22
+#define IMX8MQ_ICM_NAND		23
+#define IMX8MQ_ICM_USDHC1	24
+#define IMX8MQ_ICM_USDHC2	25
+#define IMX8MQ_ICM_PCIE1	26
+#define IMX8MQ_ICM_PCIE2	27
+#define IMX8MQ_ICN_MAIN		28
+
+#endif /* __DT_BINDINGS_INTERCONNECT_IMX8MQ_H */
diff --git a/include/linux/interconnect.h b/include/linux/interconnect.h
index d70a914cba11..d8c29049f066 100644
--- a/include/linux/interconnect.h
+++ b/include/linux/interconnect.h
@@ -28,7 +28,11 @@ struct device;
 struct icc_path *icc_get(struct device *dev, const int src_id,
 			 const int dst_id);
 struct icc_path *of_icc_get(struct device *dev, const char *name);
+struct icc_path *devm_of_icc_get(struct device *dev, const char *name);
+struct icc_path *of_icc_get_by_index(struct device *dev, int idx);
 void icc_put(struct icc_path *path);
+int icc_enable(struct icc_path *path);
+int icc_disable(struct icc_path *path);
 int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw);
 void icc_set_tag(struct icc_path *path, u32 tag);
 
@@ -46,10 +50,31 @@ static inline struct icc_path *of_icc_get(struct device *dev,
 	return NULL;
 }
 
+static inline struct icc_path *devm_of_icc_get(struct device *dev,
+						const char *name)
+{
+	return NULL;
+}
+
+static inline struct icc_path *of_icc_get_by_index(struct device *dev, int idx)
+{
+	return NULL;
+}
+
 static inline void icc_put(struct icc_path *path)
 {
 }
 
+static inline int icc_enable(struct icc_path *path)
+{
+	return 0;
+}
+
+static inline int icc_disable(struct icc_path *path)
+{
+	return 0;
+}
+
 static inline int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
 {
 	return 0;