[PATCH AUTOSEL 4.20 73/81] drm/omap: dsi: Fix OF platform depopulate

Sasha Levin
2019-02-28T15:10:57Z

From: Tomi Valkeinen <tomi.valkeinen@ti.com>

[ Upstream commit 0940c52742de0d2f70ba687bfd5fe8aa38c5f27d ]

Commit edb715dffdee ("drm/omap: dss: dsi: Move initialization code from
bind to probe") moved the of_platform_populate() call from dsi_bind() to
dsi_probe(), but failed to move the corresponding
of_platform_depopulate() from dsi_unbind() to dsi_remove(). This results
in OF child devices being potentially removed multiple times. Fix it by
placing the of_platform_depopulate() call where it belongs.

Fixes: edb715dffdee ("drm/omap: dss: dsi: Move initialization code from bind to probe")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190111035120.20668-4-laurent.pinchart@ideasonboard.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/omapdrm/dss/dsi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index 277f9dd2ec8ca..b5685018d8302 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -5104,8 +5104,6 @@ static void dsi_unbind(struct device *dev, struct device *master, void *data)
dss_debugfs_remove_file(dsi->debugfs.irqs);
dss_debugfs_remove_file(dsi->debugfs.regs);

- of_platform_depopulate(dev);
-
WARN_ON(dsi->scp_clk_refcount > 0);

dss_pll_unregister(&dsi->pll);
@@ -5457,6 +5455,8 @@ static int dsi_remove(struct platform_device *pdev)

dsi_uninit_output(dsi);

+ of_platform_depopulate(&pdev->dev);
+
pm_runtime_disable(&pdev->dev);

if (dsi->vdds_dsi_reg != NULL && dsi->vdds_dsi_enabled) {
--
2.19.1