media: staging: atomisp: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Daeseok Youn <daeseok.youn@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: devel@driverdev.osuosl.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c

@@ -1661,20 +1661,15 @@ void atomisp_css_flush(struct atomisp_device *isp)
 	dev_dbg(isp->dev, "atomisp css flush done\n");
 }
 
-#ifndef ISP2401
-void atomisp_wdt(unsigned long isp_addr)
-#else
-void atomisp_wdt(unsigned long pipe_addr)
-#endif
+void atomisp_wdt(struct timer_list *t)
 {
 #ifndef ISP2401
-	struct atomisp_device *isp = (struct atomisp_device *)isp_addr;
+	struct atomisp_sub_device *asd = from_timer(asd, t, wdt);
 #else
-	struct atomisp_video_pipe *pipe =
-		(struct atomisp_video_pipe *)pipe_addr;
+	struct atomisp_video_pipe *pipe = from_timer(pipe, t, wdt);
 	struct atomisp_sub_device *asd = pipe->asd;
-	struct atomisp_device *isp = asd->isp;
 #endif
+	struct atomisp_device *isp = asd->isp;
 
 #ifdef ISP2401
 	atomic_inc(&pipe->wdt_count);

drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h

@@ -85,11 +85,7 @@ static inline void __iomem *atomisp_get_io_virt_addr(unsigned int address)
 void atomisp_msi_irq_init(struct atomisp_device *isp, struct pci_dev *dev);
 void atomisp_msi_irq_uninit(struct atomisp_device *isp, struct pci_dev *dev);
 void atomisp_wdt_work(struct work_struct *work);
-#ifndef ISP2401
-void atomisp_wdt(unsigned long isp_addr);
-#else
-void atomisp_wdt(unsigned long pipe_addr);
-#endif
+void atomisp_wdt(struct timer_list *t);
 void atomisp_setup_flash(struct atomisp_sub_device *asd);
 irqreturn_t atomisp_isr(int irq, void *dev);
 irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr);

drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c

@@ -4515,7 +4515,7 @@ int atomisp_css_isr_thread(struct atomisp_device *isp,
 			for (i = 0; i < isp->num_of_streams; i++)
 				atomisp_wdt_stop(&isp->asd[i], 0);
 #ifndef ISP2401
-			atomisp_wdt((unsigned long)isp);
+			atomisp_wdt(&isp->asd[0].wdt);
 #else
 			queue_work(isp->wdt_work_queue, &isp->wdt_work);
 #endif

drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c

@@ -1150,17 +1150,12 @@ static int init_atomisp_wdts(struct atomisp_device *isp)
 		struct atomisp_sub_device *asd = &isp->asd[i];
 		asd = &isp->asd[i];
 #ifndef ISP2401
-		setup_timer(&asd->wdt, atomisp_wdt, (unsigned long)isp);
+		timer_setup(&asd->wdt, atomisp_wdt, 0);
 #else
-		setup_timer(&asd->video_out_capture.wdt,
-			atomisp_wdt, (unsigned long)&asd->video_out_capture);
-		setup_timer(&asd->video_out_preview.wdt,
-			atomisp_wdt, (unsigned long)&asd->video_out_preview);
-		setup_timer(&asd->video_out_vf.wdt,
-			atomisp_wdt, (unsigned long)&asd->video_out_vf);
-		setup_timer(&asd->video_out_video_capture.wdt,
-			atomisp_wdt,
-			(unsigned long)&asd->video_out_video_capture);
+		timer_setup(&asd->video_out_capture.wdt, atomisp_wdt, 0);
+		timer_setup(&asd->video_out_preview.wdt, atomisp_wdt, 0);
+		timer_setup(&asd->video_out_vf.wdt, atomisp_wdt, 0);
+		timer_setup(&asd->video_out_video_capture.wdt, atomisp_wdt, 0);
 #endif
 	}
 	return 0;