From c4f40351901a10cd662ac2c081396d8fb04f584d Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Date: Wed, 18 May 2022 13:35:54 +0300
Subject: [PATCH] clk: qcom: camcc-sm8250: Fix halt on boot by reducing driver's init level
Git-commit: c4f40351901a10cd662ac2c081396d8fb04f584d
Patch-mainline: v6.0-rc1
References: git-fixes

Access to I/O of SM8250 camera clock controller IP depends on enabled
GCC_CAMERA_AHB_CLK clock supplied by global clock controller, the latter
one is inited on subsys level, so, to satisfy the dependency, it would
make sense to deprive the init level of camcc-sm8250 driver.

If both drivers are compiled as built-in, there is a change that a board
won't boot up due to a race, which happens on the same init level.

Fixes: 5d66ca79b58c ("clk: qcom: Add camera clock controller driver for SM8250")
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220518103554.949511-1-vladimir.zapolskiy@linaro.org
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/clk/qcom/camcc-sm8250.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/clk/qcom/camcc-sm8250.c b/drivers/clk/qcom/camcc-sm8250.c
index 439eaafdcc86..ae4e9774f36e 100644
--- a/drivers/clk/qcom/camcc-sm8250.c
+++ b/drivers/clk/qcom/camcc-sm8250.c
@@ -2440,17 +2440,7 @@ static struct platform_driver cam_cc_sm8250_driver = {
 	},
 };
 
-static int __init cam_cc_sm8250_init(void)
-{
-	return platform_driver_register(&cam_cc_sm8250_driver);
-}
-subsys_initcall(cam_cc_sm8250_init);
-
-static void __exit cam_cc_sm8250_exit(void)
-{
-	platform_driver_unregister(&cam_cc_sm8250_driver);
-}
-module_exit(cam_cc_sm8250_exit);
+module_platform_driver(cam_cc_sm8250_driver);
 
 MODULE_DESCRIPTION("QTI CAMCC SM8250 Driver");
 MODULE_LICENSE("GPL v2");
-- 
2.35.3