From: Ye Xiang <xiang.ye-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: [PATCH] HID: intel-ish-hid: ipc: Specify no cache snooping on TGL and ADL
Date: Fri, 17 Dec 2021 15:45:41 +0800

Specify that both TGL and ADL don't support DMA cache snooping.

Signed-off-by: Ye Xiang <xiang.ye-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 drivers/hid/intel-ish-hid/ipc/ipc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/intel-ish-hid/ipc/ipc.c b/drivers/hid/intel-ish-hid/ipc/ipc.c
index 45e0c7b1c9ec..8ccb246b0114 100644
--- a/drivers/hid/intel-ish-hid/ipc/ipc.c
+++ b/drivers/hid/intel-ish-hid/ipc/ipc.c
@@ -909,7 +909,11 @@ static uint32_t ish_ipc_get_header(struct ishtp_device *dev, int length,
  */
 static bool _dma_no_cache_snooping(struct ishtp_device *dev)
 {
-	return dev->pdev->device == EHL_Ax_DEVICE_ID;
+	return (dev->pdev->device == EHL_Ax_DEVICE_ID ||
+		dev->pdev->device == TGL_LP_DEVICE_ID ||
+		dev->pdev->device == TGL_H_DEVICE_ID ||
+		dev->pdev->device == ADL_S_DEVICE_ID ||
+		dev->pdev->device == ADL_P_DEVICE_ID);
 }
 
 static const struct ishtp_hw_ops ish_hw_ops = {
-- 
2.17.1