3 files changed, 70 insertions, 0 deletions

diff --git a/include/dt-bindings/reset-controller/stih407-resets.h b/include/dt-bindings/reset-controller/stih407-resets.h
new file mode 100644
index 000000000000..02d4328fe479
--- /dev/null
+++ b/include/dt-bindings/reset-controller/stih407-resets.h
@@ -0,0 +1,61 @@
+/*
+ * This header provides constants for the reset controller
+ * based peripheral powerdown requests on the STMicroelectronics
+ * STiH407 SoC.
+ */
+#ifndef _DT_BINDINGS_RESET_CONTROLLER_STIH407
+#define _DT_BINDINGS_RESET_CONTROLLER_STIH407
+
+/* Powerdown requests control 0 */
+#define STIH407_EMISS_POWERDOWN         0
+#define STIH407_NAND_POWERDOWN          1
+
+/* Synp GMAC PowerDown */
+#define STIH407_ETH1_POWERDOWN          2
+
+/* Powerdown requests control 1 */
+#define STIH407_USB3_POWERDOWN          3
+#define STIH407_USB2_PORT1_POWERDOWN    4
+#define STIH407_USB2_PORT0_POWERDOWN    5
+#define STIH407_PCIE1_POWERDOWN         6
+#define STIH407_PCIE0_POWERDOWN         7
+#define STIH407_SATA1_POWERDOWN         8
+#define STIH407_SATA0_POWERDOWN         9
+
+/* Reset defines */
+#define STIH407_ETH1_SOFTRESET          0
+#define STIH407_MMC1_SOFTRESET          1
+#define STIH407_PICOPHY_SOFTRESET       2
+#define STIH407_IRB_SOFTRESET           3
+#define STIH407_PCIE0_SOFTRESET         4
+#define STIH407_PCIE1_SOFTRESET         5
+#define STIH407_SATA0_SOFTRESET         6
+#define STIH407_SATA1_SOFTRESET         7
+#define STIH407_MIPHY0_SOFTRESET        8
+#define STIH407_MIPHY1_SOFTRESET        9
+#define STIH407_MIPHY2_SOFTRESET        10
+#define STIH407_SATA0_PWR_SOFTRESET     11
+#define STIH407_SATA1_PWR_SOFTRESET     12
+#define STIH407_DELTA_SOFTRESET         13
+#define STIH407_BLITTER_SOFTRESET       14
+#define STIH407_HDTVOUT_SOFTRESET       15
+#define STIH407_HDQVDP_SOFTRESET        16
+#define STIH407_VDP_AUX_SOFTRESET       17
+#define STIH407_COMPO_SOFTRESET         18
+#define STIH407_HDMI_TX_PHY_SOFTRESET   19
+#define STIH407_JPEG_DEC_SOFTRESET      20
+#define STIH407_VP8_DEC_SOFTRESET       21
+#define STIH407_GPU_SOFTRESET           22
+#define STIH407_HVA_SOFTRESET           23
+#define STIH407_ERAM_HVA_SOFTRESET      24
+#define STIH407_LPM_SOFTRESET           25
+#define STIH407_KEYSCAN_SOFTRESET       26
+#define STIH407_USB2_PORT0_SOFTRESET    27
+#define STIH407_USB2_PORT1_SOFTRESET    28
+
+/* Picophy reset defines */
+#define STIH407_PICOPHY0_RESET          0
+#define STIH407_PICOPHY1_RESET          1
+#define STIH407_PICOPHY2_RESET          2
+
+#endif /* _DT_BINDINGS_RESET_CONTROLLER_STIH407 */
diff --git a/include/linux/reset-controller.h b/include/linux/reset-controller.h
index 41a4695fde08..ce6b962ffed4 100644
--- a/include/linux/reset-controller.h
+++ b/include/linux/reset-controller.h
@@ -12,11 +12,13 @@ struct reset_controller_dev;
  *         things to reset the device
  * @assert: manually assert the reset line, if supported
  * @deassert: manually deassert the reset line, if supported
+ * @status: return the status of the reset line, if supported
  */
 struct reset_control_ops {
         int (*reset)(struct reset_controller_dev *rcdev, unsigned long id);
         int (*assert)(struct reset_controller_dev *rcdev, unsigned long id);
         int (*deassert)(struct reset_controller_dev *rcdev, unsigned long id);
+        int (*status)(struct reset_controller_dev *rcdev, unsigned long id);
 };
 
 struct module;
diff --git a/include/linux/reset.h b/include/linux/reset.h
index 349f150ae12c..da5602bd77d7 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -10,6 +10,7 @@ struct reset_control;
 int reset_control_reset(struct reset_control *rstc);
 int reset_control_assert(struct reset_control *rstc);
 int reset_control_deassert(struct reset_control *rstc);
+int reset_control_status(struct reset_control *rstc);
 
 struct reset_control *reset_control_get(struct device *dev, const char *id);
 void reset_control_put(struct reset_control *rstc);
@@ -57,6 +58,12 @@ static inline int reset_control_deassert(struct reset_control *rstc)
         return 0;
 }
 
+static inline int reset_control_status(struct reset_control *rstc)
+{
+        WARN_ON(1);
+        return 0;
+}
+
 static inline void reset_control_put(struct reset_control *rstc)
 {
         WARN_ON(1);