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authorThomas Zimmermann <tzimmermann@suse.de>2020-08-12 19:17:18 +0200
committerThomas Zimmermann <tzimmermann@suse.de>2020-08-12 20:42:08 +0200
commit534b1f9071d95325044c21d47d9f63a45cdf425e (patch)
tree5c2aa3cd65bfb6b9e73d9ad22c021d800380f0f6 /drivers/i2c/busses/i2c-rcar.c
parentdrm/radeon: drop superflous AGP handling (diff)
parentdrm/ttm: revert "drm/ttm: make TT creation purely optional v3" (diff)
downloadlinux-dev-534b1f9071d95325044c21d47d9f63a45cdf425e.tar.xz
linux-dev-534b1f9071d95325044c21d47d9f63a45cdf425e.zip
Merge drm/drm-next into drm-misc-next
Backmerging drm-next into drm-misc-next for nouveau and panel updates. Resolves a conflict between ttm and nouveau, where struct ttm_mem_res got renamed to struct ttm_resource. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'drivers/i2c/busses/i2c-rcar.c')
-rw-r--r--drivers/i2c/busses/i2c-rcar.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index a45c4bf1ec01..2e3e1bb75013 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -868,6 +868,7 @@ static int rcar_unreg_slave(struct i2c_client *slave)
/* disable irqs and ensure none is running before clearing ptr */
rcar_i2c_write(priv, ICSIER, 0);
rcar_i2c_write(priv, ICSCR, 0);
+ rcar_i2c_write(priv, ICSAR, 0); /* Gen2: must be 0 if not using slave */
synchronize_irq(priv->irq);
priv->slave = NULL;
@@ -969,6 +970,8 @@ static int rcar_i2c_probe(struct platform_device *pdev)
if (ret < 0)
goto out_pm_put;
+ rcar_i2c_write(priv, ICSAR, 0); /* Gen2: must be 0 if not using slave */
+
if (priv->devtype == I2C_RCAR_GEN3) {
priv->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
if (!IS_ERR(priv->rstc)) {