gpu: ipu-v3: remove interrupt busy waiting routine

This is not used anymore since commit eb8c88808c83 ("drm/imx: add
deferred plane disabling"), remove it.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

2 files changed, 0 insertions, 17 deletions

diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index 61310f8be309..22e0a3eca7b1 100644
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -597,22 +597,6 @@ int ipu_idmac_wait_busy(struct ipuv3_channel *channel, int ms)
 }
 EXPORT_SYMBOL_GPL(ipu_idmac_wait_busy);
 
-int ipu_wait_interrupt(struct ipu_soc *ipu, int irq, int ms)
-{
-        unsigned long timeout;
-
-        timeout = jiffies + msecs_to_jiffies(ms);
-        ipu_cm_write(ipu, BIT(irq % 32), IPU_INT_STAT(irq / 32));
-        while (!(ipu_cm_read(ipu, IPU_INT_STAT(irq / 32) & BIT(irq % 32)))) {
-                if (time_after(jiffies, timeout))
-                        return -ETIMEDOUT;
-                cpu_relax();
-        }
-
-        return 0;
-}
-EXPORT_SYMBOL_GPL(ipu_wait_interrupt);
-
 int ipu_idmac_disable_channel(struct ipuv3_channel *channel)
 {
         struct ipu_soc *ipu = channel->ipu;
diff --git a/drivers/gpu/ipu-v3/ipu-prv.h b/drivers/gpu/ipu-v3/ipu-prv.h
index b6e22d64159f..ac4b8d658500 100644
--- a/drivers/gpu/ipu-v3/ipu-prv.h
+++ b/drivers/gpu/ipu-v3/ipu-prv.h
@@ -225,7 +225,6 @@ int ipu_module_enable(struct ipu_soc *ipu, u32 mask);
 int ipu_module_disable(struct ipu_soc *ipu, u32 mask);
 
 bool ipu_idmac_channel_busy(struct ipu_soc *ipu, unsigned int chno);
-int ipu_wait_interrupt(struct ipu_soc *ipu, int irq, int ms);
 
 int ipu_csi_init(struct ipu_soc *ipu, struct device *dev, int id,
                  unsigned long base, u32 module, struct clk *clk_ipu);