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authorLinus Torvalds <torvalds@linux-foundation.org>2019-12-05 11:43:31 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-12-05 11:43:31 -0800
commitec939e4c94bd3ef2fd4f34c15f8aaf79bd0c5ee1 (patch)
tree1d39945dbdd233d35c571a726e135fe0ae845814 /include
parent38206c24ab09b4f4c2a57de5c1af0bb2e69cf5b6 (diff)
parent3f6939aec712a15152c32516c1c543a91ac1e717 (diff)
downloadlinux-ec939e4c94bd3ef2fd4f34c15f8aaf79bd0c5ee1.tar.gz
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Olof Johansson:
 "Various driver updates for platforms:

   - A larger set of work on Tegra 2/3 around memory controller and
     regulator features, some fuse cleanups, etc..

   - MMP platform drivers, in particular for USB PHY, and other smaller
     additions.

   - Samsung Exynos 5422 driver for DMC (dynamic memory configuration),
     and ASV (adaptive voltage), allowing the platform to run at more
     optimal operating points.

   - Misc refactorings and support for RZ/G2N and R8A774B1 from Renesas

   - Clock/reset control driver for TI/OMAP

   - Meson-A1 reset controller support

   - Qualcomm sdm845 and sda845 SoC IDs for socinfo"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (150 commits)
  firmware: arm_scmi: Fix doorbell ring logic for !CONFIG_64BIT
  soc: fsl: add RCPM driver
  dt-bindings: fsl: rcpm: Add 'little-endian' and update Chassis definition
  memory: tegra: Consolidate registers definition into common header
  memory: tegra: Ensure timing control debug features are disabled
  memory: tegra: Introduce Tegra30 EMC driver
  memory: tegra: Do not handle error from wait_for_completion_timeout()
  memory: tegra: Increase handshake timeout on Tegra20
  memory: tegra: Print a brief info message about EMC timings
  memory: tegra: Pre-configure debug register on Tegra20
  memory: tegra: Include io.h instead of iopoll.h
  memory: tegra: Adapt for Tegra20 clock driver changes
  memory: tegra: Don't set EMC rate to maximum on probe for Tegra20
  memory: tegra: Add gr2d and gr3d to DRM IOMMU group
  memory: tegra: Set DMA mask based on supported address bits
  soc: at91: Add Atmel SFR SN (Serial Number) support
  memory: atmel-ebi: switch to SPDX license identifiers
  memory: atmel-ebi: move NUM_CS definition inside EBI driver
  soc: mediatek: Refactor bus protection control
  soc: mediatek: Refactor sram control
  ...
Diffstat (limited to 'include')
-rw-r--r--include/dt-bindings/power/qcom-rpmpd.h9
-rw-r--r--include/dt-bindings/reset/amlogic,meson-a1-reset.h74
-rw-r--r--include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h2
-rw-r--r--include/linux/firmware/meson/meson_sm.h15
-rw-r--r--include/linux/firmware/xlnx-zynqmp.h3
-rw-r--r--include/linux/logic_pio.h4
-rw-r--r--include/linux/mfd/syscon/atmel-matrix.h1
-rw-r--r--include/linux/platform_data/ti-prm.h21
-rw-r--r--include/linux/pm_wakeup.h9
-rw-r--r--include/linux/reset-controller.h3
-rw-r--r--include/linux/reset.h46
-rw-r--r--include/linux/soc/mmp/cputype.h2
-rw-r--r--include/linux/soc/qcom/llcc-qcom.h94
-rw-r--r--include/soc/tegra/mc.h2
14 files changed, 199 insertions, 86 deletions
diff --git a/include/dt-bindings/power/qcom-rpmpd.h b/include/dt-bindings/power/qcom-rpmpd.h
index 93e36d011527..f05f8b1808ec 100644
--- a/include/dt-bindings/power/qcom-rpmpd.h
+++ b/include/dt-bindings/power/qcom-rpmpd.h
@@ -27,6 +27,14 @@
 #define RPMH_REGULATOR_LEVEL_TURBO	384
 #define RPMH_REGULATOR_LEVEL_TURBO_L1	416
 
+/* MSM8976 Power Domain Indexes */
+#define MSM8976_VDDCX		0
+#define MSM8976_VDDCX_AO	1
+#define MSM8976_VDDCX_VFL	2
+#define MSM8976_VDDMX		3
+#define MSM8976_VDDMX_AO	4
+#define MSM8976_VDDMX_VFL	5
+
 /* MSM8996 Power Domain Indexes */
 #define MSM8996_VDDCX		0
 #define MSM8996_VDDCX_AO	1
@@ -68,6 +76,7 @@
 #define RPM_SMD_LEVEL_NOM_PLUS        320
 #define RPM_SMD_LEVEL_TURBO           384
 #define RPM_SMD_LEVEL_TURBO_NO_CPR    416
+#define RPM_SMD_LEVEL_TURBO_HIGH      448
 #define RPM_SMD_LEVEL_BINNING         512
 
 #endif
diff --git a/include/dt-bindings/reset/amlogic,meson-a1-reset.h b/include/dt-bindings/reset/amlogic,meson-a1-reset.h
new file mode 100644
index 000000000000..f1a3a797540d
--- /dev/null
+++ b/include/dt-bindings/reset/amlogic,meson-a1-reset.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ *
+ * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
+ * Author: Xingyu Chen <xingyu.chen@amlogic.com>
+ *
+ */
+
+#ifndef _DT_BINDINGS_AMLOGIC_MESON_A1_RESET_H
+#define _DT_BINDINGS_AMLOGIC_MESON_A1_RESET_H
+
+/*	RESET0					*/
+/*					0	*/
+#define RESET_AM2AXI_VAD		1
+/*					2-3	*/
+#define RESET_PSRAM			4
+#define RESET_PAD_CTRL			5
+/*					6	*/
+#define RESET_TEMP_SENSOR		7
+#define RESET_AM2AXI_DEV		8
+/*					9	*/
+#define RESET_SPICC_A			10
+#define RESET_MSR_CLK			11
+#define RESET_AUDIO			12
+#define RESET_ANALOG_CTRL		13
+#define RESET_SAR_ADC			14
+#define RESET_AUDIO_VAD			15
+#define RESET_CEC			16
+#define RESET_PWM_EF			17
+#define RESET_PWM_CD			18
+#define RESET_PWM_AB			19
+/*					20	*/
+#define RESET_IR_CTRL			21
+#define RESET_I2C_S_A			22
+/*					23	*/
+#define RESET_I2C_M_D			24
+#define RESET_I2C_M_C			25
+#define RESET_I2C_M_B			26
+#define RESET_I2C_M_A			27
+#define RESET_I2C_PROD_AHB		28
+#define RESET_I2C_PROD			29
+/*					30-31	*/
+
+/*	RESET1					*/
+#define RESET_ACODEC			32
+#define RESET_DMA			33
+#define RESET_SD_EMMC_A			34
+/*					35	*/
+#define RESET_USBCTRL			36
+/*					37	*/
+#define RESET_USBPHY			38
+/*					39-41	*/
+#define RESET_RSA			42
+#define RESET_DMC			43
+/*					44	*/
+#define RESET_IRQ_CTRL			45
+/*					46	*/
+#define RESET_NIC_VAD			47
+#define RESET_NIC_AXI			48
+#define RESET_RAMA			49
+#define RESET_RAMB			50
+/*					51-52	*/
+#define RESET_ROM			53
+#define RESET_SPIFC			54
+#define RESET_GIC			55
+#define RESET_UART_C			56
+#define RESET_UART_B			57
+#define RESET_UART_A			58
+#define RESET_OSC_RING			59
+/*					60-63	*/
+
+/*	RESET2					*/
+/*					64-95	*/
+
+#endif
diff --git a/include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h b/include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h
index 05c36367875c..1ef807856cb8 100644
--- a/include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h
+++ b/include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h
@@ -13,5 +13,7 @@
 #define AXG_ARB_FRDDR_A	3
 #define AXG_ARB_FRDDR_B	4
 #define AXG_ARB_FRDDR_C	5
+#define AXG_ARB_TODDR_D	6
+#define AXG_ARB_FRDDR_D	7
 
 #endif /* _DT_BINDINGS_AMLOGIC_MESON_AXG_AUDIO_ARB_H */
diff --git a/include/linux/firmware/meson/meson_sm.h b/include/linux/firmware/meson/meson_sm.h
index 7613bf7c9442..6669e2a1d5fd 100644
--- a/include/linux/firmware/meson/meson_sm.h
+++ b/include/linux/firmware/meson/meson_sm.h
@@ -16,11 +16,14 @@ enum {
 
 struct meson_sm_firmware;
 
-int meson_sm_call(unsigned int cmd_index, u32 *ret, u32 arg0, u32 arg1,
-		  u32 arg2, u32 arg3, u32 arg4);
-int meson_sm_call_write(void *buffer, unsigned int b_size, unsigned int cmd_index,
-			u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
-int meson_sm_call_read(void *buffer, unsigned int bsize, unsigned int cmd_index,
-		       u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
+int meson_sm_call(struct meson_sm_firmware *fw, unsigned int cmd_index,
+		  u32 *ret, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
+int meson_sm_call_write(struct meson_sm_firmware *fw, void *buffer,
+			unsigned int b_size, unsigned int cmd_index, u32 arg0,
+			u32 arg1, u32 arg2, u32 arg3, u32 arg4);
+int meson_sm_call_read(struct meson_sm_firmware *fw, void *buffer,
+		       unsigned int bsize, unsigned int cmd_index, u32 arg0,
+		       u32 arg1, u32 arg2, u32 arg3, u32 arg4);
+struct meson_sm_firmware *meson_sm_get(struct device_node *firmware_node);
 
 #endif /* _MESON_SM_FW_H_ */
diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index df366f1a4cb4..e41ad9e37136 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -2,7 +2,7 @@
 /*
  * Xilinx Zynq MPSoC Firmware layer
  *
- *  Copyright (C) 2014-2018 Xilinx
+ *  Copyright (C) 2014-2019 Xilinx
  *
  *  Michal Simek <michal.simek@xilinx.com>
  *  Davorin Mista <davorin.mista@aggios.com>
@@ -46,6 +46,7 @@
 #define	ZYNQMP_PM_CAPABILITY_ACCESS	0x1U
 #define	ZYNQMP_PM_CAPABILITY_CONTEXT	0x2U
 #define	ZYNQMP_PM_CAPABILITY_WAKEUP	0x4U
+#define	ZYNQMP_PM_CAPABILITY_UNUSABLE	0x8U
 
 /*
  * Firmware FPGA Manager flags
diff --git a/include/linux/logic_pio.h b/include/linux/logic_pio.h
index 88e1e6304a71..54945aa824b4 100644
--- a/include/linux/logic_pio.h
+++ b/include/linux/logic_pio.h
@@ -108,10 +108,10 @@ void logic_outsl(unsigned long addr, const void *buffer, unsigned int count);
  * area by redefining the macro below.
  */
 #define PIO_INDIRECT_SIZE 0x4000
-#define MMIO_UPPER_LIMIT (IO_SPACE_LIMIT - PIO_INDIRECT_SIZE)
 #else
-#define MMIO_UPPER_LIMIT IO_SPACE_LIMIT
+#define PIO_INDIRECT_SIZE 0
 #endif /* CONFIG_INDIRECT_PIO */
+#define MMIO_UPPER_LIMIT (IO_SPACE_LIMIT - PIO_INDIRECT_SIZE)
 
 struct logic_pio_hwaddr *find_io_range_by_fwnode(struct fwnode_handle *fwnode);
 unsigned long logic_pio_trans_hwaddr(struct fwnode_handle *fwnode,
diff --git a/include/linux/mfd/syscon/atmel-matrix.h b/include/linux/mfd/syscon/atmel-matrix.h
index f61cd127a852..20c25665216a 100644
--- a/include/linux/mfd/syscon/atmel-matrix.h
+++ b/include/linux/mfd/syscon/atmel-matrix.h
@@ -106,7 +106,6 @@
 #define AT91_MATRIX_DDR_IOSR			BIT(18)
 #define AT91_MATRIX_NFD0_SELECT			BIT(24)
 #define AT91_MATRIX_DDR_MP_EN			BIT(25)
-#define AT91_MATRIX_EBI_NUM_CS			8
 
 #define AT91_MATRIX_USBPUCR_PUON		BIT(30)
 
diff --git a/include/linux/platform_data/ti-prm.h b/include/linux/platform_data/ti-prm.h
new file mode 100644
index 000000000000..28154c3226c2
--- /dev/null
+++ b/include/linux/platform_data/ti-prm.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * TI PRM (Power & Reset Manager) platform data
+ *
+ * Copyright (C) 2019 Texas Instruments, Inc.
+ *
+ * Tero Kristo <t-kristo@ti.com>
+ */
+
+#ifndef _LINUX_PLATFORM_DATA_TI_PRM_H
+#define _LINUX_PLATFORM_DATA_TI_PRM_H
+
+struct clockdomain;
+
+struct ti_prm_platform_data {
+	void (*clkdm_deny_idle)(struct clockdomain *clkdm);
+	void (*clkdm_allow_idle)(struct clockdomain *clkdm);
+	struct clockdomain * (*clkdm_lookup)(const char *name);
+};
+
+#endif /* _LINUX_PLATFORM_DATA_TI_PRM_H */
diff --git a/include/linux/pm_wakeup.h b/include/linux/pm_wakeup.h
index 661efa029c96..aa3da6611533 100644
--- a/include/linux/pm_wakeup.h
+++ b/include/linux/pm_wakeup.h
@@ -63,6 +63,11 @@ struct wakeup_source {
 	bool			autosleep_enabled:1;
 };
 
+#define for_each_wakeup_source(ws) \
+	for ((ws) = wakeup_sources_walk_start();	\
+	     (ws);					\
+	     (ws) = wakeup_sources_walk_next((ws)))
+
 #ifdef CONFIG_PM_SLEEP
 
 /*
@@ -92,6 +97,10 @@ extern void wakeup_source_remove(struct wakeup_source *ws);
 extern struct wakeup_source *wakeup_source_register(struct device *dev,
 						    const char *name);
 extern void wakeup_source_unregister(struct wakeup_source *ws);
+extern int wakeup_sources_read_lock(void);
+extern void wakeup_sources_read_unlock(int idx);
+extern struct wakeup_source *wakeup_sources_walk_start(void);
+extern struct wakeup_source *wakeup_sources_walk_next(struct wakeup_source *ws);
 extern int device_wakeup_enable(struct device *dev);
 extern int device_wakeup_disable(struct device *dev);
 extern void device_set_wakeup_capable(struct device *dev, bool capable);
diff --git a/include/linux/reset-controller.h b/include/linux/reset-controller.h
index eaae6b4e9f24..ec35814e0bbb 100644
--- a/include/linux/reset-controller.h
+++ b/include/linux/reset-controller.h
@@ -62,7 +62,8 @@ struct reset_control_lookup {
  * @of_node: corresponding device tree node as phandle target
  * @of_reset_n_cells: number of cells in reset line specifiers
  * @of_xlate: translation function to translate from specifier as found in the
- *            device tree to id as given to the reset control ops
+ *            device tree to id as given to the reset control ops, defaults
+ *            to :c:func:`of_reset_simple_xlate`.
  * @nr_resets: number of reset controls in this reset controller device
  */
 struct reset_controller_dev {
diff --git a/include/linux/reset.h b/include/linux/reset.h
index eb597e8aa430..05aa9f440f48 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -203,12 +203,34 @@ static inline struct reset_control *reset_control_get_shared(
 	return __reset_control_get(dev, id, 0, true, false, false);
 }
 
+/**
+ * reset_control_get_optional_exclusive - optional reset_control_get_exclusive()
+ * @dev: device to be reset by the controller
+ * @id: reset line name
+ *
+ * Optional variant of reset_control_get_exclusive(). If the requested reset
+ * is not specified in the device tree, this function returns NULL instead of
+ * an error.
+ *
+ * See reset_control_get_exclusive() for more information.
+ */
 static inline struct reset_control *reset_control_get_optional_exclusive(
 					struct device *dev, const char *id)
 {
 	return __reset_control_get(dev, id, 0, false, true, true);
 }
 
+/**
+ * reset_control_get_optional_shared - optional reset_control_get_shared()
+ * @dev: device to be reset by the controller
+ * @id: reset line name
+ *
+ * Optional variant of reset_control_get_shared(). If the requested reset
+ * is not specified in the device tree, this function returns NULL instead of
+ * an error.
+ *
+ * See reset_control_get_shared() for more information.
+ */
 static inline struct reset_control *reset_control_get_optional_shared(
 					struct device *dev, const char *id)
 {
@@ -354,12 +376,36 @@ static inline struct reset_control *devm_reset_control_get_shared(
 	return __devm_reset_control_get(dev, id, 0, true, false, false);
 }
 
+/**
+ * devm_reset_control_get_optional_exclusive - resource managed
+ *                                             reset_control_get_optional_exclusive()
+ * @dev: device to be reset by the controller
+ * @id: reset line name
+ *
+ * Managed reset_control_get_optional_exclusive(). For reset controllers
+ * returned from this function, reset_control_put() is called automatically on
+ * driver detach.
+ *
+ * See reset_control_get_optional_exclusive() for more information.
+ */
 static inline struct reset_control *devm_reset_control_get_optional_exclusive(
 					struct device *dev, const char *id)
 {
 	return __devm_reset_control_get(dev, id, 0, false, true, true);
 }
 
+/**
+ * devm_reset_control_get_optional_shared - resource managed
+ *                                          reset_control_get_optional_shared()
+ * @dev: device to be reset by the controller
+ * @id: reset line name
+ *
+ * Managed reset_control_get_optional_shared(). For reset controllers returned
+ * from this function, reset_control_put() is called automatically on driver
+ * detach.
+ *
+ * See reset_control_get_optional_shared() for more information.
+ */
 static inline struct reset_control *devm_reset_control_get_optional_shared(
 					struct device *dev, const char *id)
 {
diff --git a/include/linux/soc/mmp/cputype.h b/include/linux/soc/mmp/cputype.h
index c3ec88983e94..221790761e8e 100644
--- a/include/linux/soc/mmp/cputype.h
+++ b/include/linux/soc/mmp/cputype.h
@@ -2,7 +2,9 @@
 #ifndef __ASM_MACH_CPUTYPE_H
 #define __ASM_MACH_CPUTYPE_H
 
+#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
 #include <asm/cputype.h>
+#endif
 
 /*
  *  CPU   Stepping   CPU_ID      CHIP_ID
diff --git a/include/linux/soc/qcom/llcc-qcom.h b/include/linux/soc/qcom/llcc-qcom.h
index eb71a50b8afc..90b864655822 100644
--- a/include/linux/soc/qcom/llcc-qcom.h
+++ b/include/linux/soc/qcom/llcc-qcom.h
@@ -38,33 +38,27 @@ struct llcc_slice_desc {
 };
 
 /**
- * llcc_slice_config - Data associated with the llcc slice
- * @usecase_id: usecase id for which the llcc slice is used
- * @slice_id: llcc slice id assigned to each slice
- * @max_cap: maximum capacity of the llcc slice
- * @priority: priority of the llcc slice
- * @fixed_size: whether the llcc slice can grow beyond its size
- * @bonus_ways: bonus ways associated with llcc slice
- * @res_ways: reserved ways associated with llcc slice
- * @cache_mode: mode of the llcc slice
- * @probe_target_ways: Probe only reserved and bonus ways on a cache miss
- * @dis_cap_alloc: Disable capacity based allocation
- * @retain_on_pc: Retain through power collapse
- * @activate_on_init: activate the slice on init
+ * llcc_edac_reg_data - llcc edac registers data for each error type
+ * @name: Name of the error
+ * @synd_reg: Syndrome register address
+ * @count_status_reg: Status register address to read the error count
+ * @ways_status_reg: Status register address to read the error ways
+ * @reg_cnt: Number of registers
+ * @count_mask: Mask value to get the error count
+ * @ways_mask: Mask value to get the error ways
+ * @count_shift: Shift value to get the error count
+ * @ways_shift: Shift value to get the error ways
  */
-struct llcc_slice_config {
-	u32 usecase_id;
-	u32 slice_id;
-	u32 max_cap;
-	u32 priority;
-	bool fixed_size;
-	u32 bonus_ways;
-	u32 res_ways;
-	u32 cache_mode;
-	u32 probe_target_ways;
-	bool dis_cap_alloc;
-	bool retain_on_pc;
-	bool activate_on_init;
+struct llcc_edac_reg_data {
+	char *name;
+	u64 synd_reg;
+	u64 count_status_reg;
+	u64 ways_status_reg;
+	u32 reg_cnt;
+	u32 count_mask;
+	u32 ways_mask;
+	u8  count_shift;
+	u8  ways_shift;
 };
 
 /**
@@ -93,30 +87,6 @@ struct llcc_drv_data {
 	int ecc_irq;
 };
 
-/**
- * llcc_edac_reg_data - llcc edac registers data for each error type
- * @name: Name of the error
- * @synd_reg: Syndrome register address
- * @count_status_reg: Status register address to read the error count
- * @ways_status_reg: Status register address to read the error ways
- * @reg_cnt: Number of registers
- * @count_mask: Mask value to get the error count
- * @ways_mask: Mask value to get the error ways
- * @count_shift: Shift value to get the error count
- * @ways_shift: Shift value to get the error ways
- */
-struct llcc_edac_reg_data {
-	char *name;
-	u64 synd_reg;
-	u64 count_status_reg;
-	u64 ways_status_reg;
-	u32 reg_cnt;
-	u32 count_mask;
-	u32 ways_mask;
-	u8  count_shift;
-	u8  ways_shift;
-};
-
 #if IS_ENABLED(CONFIG_QCOM_LLCC)
 /**
  * llcc_slice_getd - get llcc slice descriptor
@@ -154,20 +124,6 @@ int llcc_slice_activate(struct llcc_slice_desc *desc);
  */
 int llcc_slice_deactivate(struct llcc_slice_desc *desc);
 
-/**
- * qcom_llcc_probe - program the sct table
- * @pdev: platform device pointer
- * @table: soc sct table
- * @sz: Size of the config table
- */
-int qcom_llcc_probe(struct platform_device *pdev,
-		      const struct llcc_slice_config *table, u32 sz);
-
-/**
- * qcom_llcc_remove - remove the sct table
- * @pdev: Platform device pointer
- */
-int qcom_llcc_remove(struct platform_device *pdev);
 #else
 static inline struct llcc_slice_desc *llcc_slice_getd(u32 uid)
 {
@@ -197,16 +153,6 @@ static inline int llcc_slice_deactivate(struct llcc_slice_desc *desc)
 {
 	return -EINVAL;
 }
-static inline int qcom_llcc_probe(struct platform_device *pdev,
-		      const struct llcc_slice_config *table, u32 sz)
-{
-	return -ENODEV;
-}
-
-static inline int qcom_llcc_remove(struct platform_device *pdev)
-{
-	return -ENODEV;
-}
 #endif
 
 #endif
diff --git a/include/soc/tegra/mc.h b/include/soc/tegra/mc.h
index 16e2c2fb5f6c..1238e35653d1 100644
--- a/include/soc/tegra/mc.h
+++ b/include/soc/tegra/mc.h
@@ -181,7 +181,7 @@ struct tegra_mc {
 	spinlock_t lock;
 };
 
-void tegra_mc_write_emem_configuration(struct tegra_mc *mc, unsigned long rate);
+int tegra_mc_write_emem_configuration(struct tegra_mc *mc, unsigned long rate);
 unsigned int tegra_mc_get_emem_device_count(struct tegra_mc *mc);
 
 #endif /* __SOC_TEGRA_MC_H__ */