Unverified Commit 66028ddb authored Sep 01, 2021 by Samuel Holland Committed by Maxime Ripard Sep 13, 2021

clk: sunxi-ng: Prevent unbinding CCUs via sysfs

The CCU drivers are not really designed to be unbound. Unbinding a SoC's
main CCU is especially pointless, as very few of the peripherals on the
SoC will work without it. Let's avoid any potential problems by removing
the bind/unbind attributes from sysfs for these drivers.

This change is not applied to the "secondary" CCUs (DE, USB) as those
could reasonably be unbound without making the system useless.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210901050526.45673-3-samuel@sholland.org

parent 9bec2b9c

drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -208,6 +208,7 @@ static struct platform_driver sun50i_a100_r_ccu_driver = {
		.probe = sun50i_a100_r_ccu_probe,
		.driver = {
		.name = "sun50i-a100-r-ccu",
		.suppress_bind_attrs = true,
		.of_match_table = sun50i_a100_r_ccu_ids,
		},
		};

drivers/clk/sunxi-ng/ccu-sun50i-a100.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1270,6 +1270,7 @@ static struct platform_driver sun50i_a100_ccu_driver = {
		.probe = sun50i_a100_ccu_probe,
		.driver = {
		.name = "sun50i-a100-ccu",
		.suppress_bind_attrs = true,
		.of_match_table = sun50i_a100_ccu_ids,
		},
		};

drivers/clk/sunxi-ng/ccu-sun50i-a64.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -978,6 +978,7 @@ static struct platform_driver sun50i_a64_ccu_driver = {
		.probe = sun50i_a64_ccu_probe,
		.driver = {
		.name = "sun50i-a64-ccu",
		.suppress_bind_attrs = true,
		.of_match_table = sun50i_a64_ccu_ids,
		},
		};

drivers/clk/sunxi-ng/ccu-sun50i-h6.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1252,6 +1252,7 @@ static struct platform_driver sun50i_h6_ccu_driver = {
		.probe = sun50i_h6_ccu_probe,
		.driver = {
		.name = "sun50i-h6-ccu",
		.suppress_bind_attrs = true,
		.of_match_table = sun50i_h6_ccu_ids,
		},
		};

drivers/clk/sunxi-ng/ccu-sun8i-a83t.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -918,6 +918,7 @@ static struct platform_driver sun8i_a83t_ccu_driver = {
		.probe = sun8i_a83t_ccu_probe,
		.driver = {
		.name = "sun8i-a83t-ccu",
		.suppress_bind_attrs = true,
		.of_match_table = sun8i_a83t_ccu_ids,
		},
		};