[PATCH] megachips-stdpxxxx-ge-b850v3-fw: Fix drm bridge initialization

From: Peter Senna Tschudin
Date: Thu Mar 30 2017 - 04:20:31 EST


Reordering of the device nodes based on unit address resulted in
ge_b850v3_lvds_attach() being called before
ge_b850v3_lvds_ptr->stdp4028_i2c was populated.

This patch moves the drm bridge initialization from
ge_b850v3_lvds_init() to stdp4028_ge_b850v3_fw_probe() ensuring that
ge_b850v3_lvds_ptr->stdp4028_i2c is properly populated.

Signed-off-by: Peter Senna Tschudin <peter.senna@xxxxxxxxxxxxx>
---
drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
index e53c243..b9f32e8 100644
--- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
+++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
@@ -279,10 +279,6 @@ static int ge_b850v3_lvds_init(struct device *dev)
return -ENOMEM;
}

- ge_b850v3_lvds_ptr->bridge.funcs = &ge_b850v3_lvds_funcs;
- ge_b850v3_lvds_ptr->bridge.of_node = dev->of_node;
- drm_bridge_add(&ge_b850v3_lvds_ptr->bridge);
-
success:
mutex_unlock(&ge_b850v3_lvds_dev_mutex);
return 0;
@@ -317,6 +313,11 @@ static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
ge_b850v3_lvds_ptr->stdp4028_i2c = stdp4028_i2c;
i2c_set_clientdata(stdp4028_i2c, ge_b850v3_lvds_ptr);

+ /* drm bridge initialization */
+ ge_b850v3_lvds_ptr->bridge.funcs = &ge_b850v3_lvds_funcs;
+ ge_b850v3_lvds_ptr->bridge.of_node = dev->of_node;
+ drm_bridge_add(&ge_b850v3_lvds_ptr->bridge);
+
/* Clear pending interrupts since power up. */
i2c_smbus_write_word_data(stdp4028_i2c,
STDP4028_DPTX_IRQ_STS_REG,
--
2.9.3