linux-kernel - [PATCH V3 1/7] firmware: imx: Add stubs for !CONFIG_IMX

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Date:   Mon,  9 Mar 2020 08:38:14 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, dmitry.torokhov@...il.com,
        a.zummo@...ertech.it, alexandre.belloni@...tlin.com,
        rui.zhang@...el.com, daniel.lezcano@...aro.org,
        amit.kucheria@...durent.com, wim@...ux-watchdog.org,
        linux@...ck-us.net, daniel.baluta@....com,
        gregkh@...uxfoundation.org, linux@...pel-privat.de,
        tglx@...utronix.de, m.felsch@...gutronix.de,
        andriy.shevchenko@...ux.intel.com, arnd@...db.de,
        ronald@...ovation.ch, krzk@...nel.org, robh@...nel.org,
        leonard.crestez@....com, aisheng.dong@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-input@...r.kernel.org, linux-rtc@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-watchdog@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH V3 1/7] firmware: imx: Add stubs for !CONFIG_IMX_SCU case

Add stubs for those i.MX SCU APIs to make those modules depending
on IMX_SCU can pass build when COMPILE_TEST is enabled.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
Changes since V2:
	- return error for stubs.
---
 include/linux/firmware/imx/ipc.h | 11 +++++++++++
 include/linux/firmware/imx/sci.h | 19 +++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/include/linux/firmware/imx/ipc.h b/include/linux/firmware/imx/ipc.h
index 8910574..9e3d808 100644
--- a/include/linux/firmware/imx/ipc.h
+++ b/include/linux/firmware/imx/ipc.h
@@ -34,6 +34,7 @@ struct imx_sc_rpc_msg {
 	uint8_t func;
 };
 
+#ifdef CONFIG_IMX_SCU
 /*
  * This is an function to send an RPC message over an IPC channel.
  * It is called by client-side SCFW API function shims.
@@ -55,4 +56,14 @@ int imx_scu_call_rpc(struct imx_sc_ipc *ipc, void *msg, bool have_resp);
  * @return Returns an error code (0 = success, failed if < 0)
  */
 int imx_scu_get_handle(struct imx_sc_ipc **ipc);
+#else
+static inline int imx_scu_call_rpc(struct imx_sc_ipc *ipc, void *msg, bool have_resp)
+{
+	return -ENOENT;
+}
+static inline int imx_scu_get_handle(struct imx_sc_ipc **ipc)
+{
+	return -ENOENT;
+}
+#endif
 #endif /* _SC_IPC_H */
diff --git a/include/linux/firmware/imx/sci.h b/include/linux/firmware/imx/sci.h
index 17ba4e4..022129b 100644
--- a/include/linux/firmware/imx/sci.h
+++ b/include/linux/firmware/imx/sci.h
@@ -16,8 +16,27 @@
 #include <linux/firmware/imx/svc/misc.h>
 #include <linux/firmware/imx/svc/pm.h>
 
+#ifdef CONFIG_IMX_SCU
 int imx_scu_enable_general_irq_channel(struct device *dev);
 int imx_scu_irq_register_notifier(struct notifier_block *nb);
 int imx_scu_irq_unregister_notifier(struct notifier_block *nb);
 int imx_scu_irq_group_enable(u8 group, u32 mask, u8 enable);
+#else
+static inline int imx_scu_enable_general_irq_channel(struct device *dev)
+{
+	return -ENOENT;
+}
+static inline int imx_scu_irq_register_notifier(struct notifier_block *nb)
+{
+	return -ENOENT;
+}
+static inline int imx_scu_irq_unregister_notifier(struct notifier_block *nb)
+{
+	return -ENOENT;
+}
+static inline int imx_scu_irq_group_enable(u8 group, u32 mask, u8 enable)
+{
+	return -ENOENT;
+}
+#endif
 #endif /* _SC_SCI_H */
-- 
2.7.4