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[07/32] media: camss: csiphy: Ensure clock mux config is done before the rest

Message ID 1529681621-9682-8-git-send-email-todor.tomov@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Todor Tomov June 22, 2018, 3:33 p.m. UTC 
Add a write memory barier after clock mux config and before the rest
of the csiphy config.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
---
 drivers/media/platform/qcom/camss/camss-csiphy.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/media/platform/qcom/camss/camss-csiphy.c b/drivers/media/platform/qcom/camss/camss-csiphy.c
index b37e691..2a9adcd 100644
--- a/drivers/media/platform/qcom/camss/camss-csiphy.c
+++ b/drivers/media/platform/qcom/camss/camss-csiphy.c
@@ -364,6 +364,7 @@  static int csiphy_stream_on(struct csiphy_device *csiphy)
 		val |= cfg->csid_id;
 	}
 	writel_relaxed(val, csiphy->base_clk_mux);
+	wmb();
 
 	writel_relaxed(0x1, csiphy->base +
 		       CAMSS_CSI_PHY_GLBL_T_INIT_CFG0);