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

8 files changed, 8 insertions, 0 deletions

diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c b/drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c
index 6f2a58970556..804729e0a208 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c
@@ -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,
 	},
 };
diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a100.c b/drivers/clk/sunxi-ng/ccu-sun50i-a100.c
index 913bb08e6dee..1d475d5a3d91 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-a100.c
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-a100.c
@@ -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,
 	},
 };
diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
index 54f25c624f02..fcbd914e84e0 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
@@ -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,
 	},
 };
diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c
index c0800da2fa3d..9a8902f702c5 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c
@@ -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,
 	},
 };
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c b/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c
index c2ddcd2ddab4..e663ab0c9935 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c
@@ -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,
 	},
 };
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-r40.c b/drivers/clk/sunxi-ng/ccu-sun8i-r40.c
index 002e0c3a04db..a2144ee728a0 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-r40.c
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-r40.c
@@ -1369,6 +1369,7 @@ static struct platform_driver sun8i_r40_ccu_driver = {
 	.probe	= sun8i_r40_ccu_probe,
 	.driver	= {
 		.name	= "sun8i-r40-ccu",
+		.suppress_bind_attrs = true,
 		.of_match_table	= sun8i_r40_ccu_ids,
 	},
 };
diff --git a/drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c b/drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c
index 261e64416f26..d2072972b614 100644
--- a/drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c
+++ b/drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c
@@ -268,6 +268,7 @@ static struct platform_driver sun9i_a80_de_clk_driver = {
 	.probe	= sun9i_a80_de_clk_probe,
 	.driver	= {
 		.name	= "sun9i-a80-de-clks",
+		.suppress_bind_attrs = true,
 		.of_match_table	= sun9i_a80_de_clk_ids,
 	},
 };
diff --git a/drivers/clk/sunxi-ng/ccu-sun9i-a80.c b/drivers/clk/sunxi-ng/ccu-sun9i-a80.c
index 97aaed0e6850..68b30fdc60fd 100644
--- a/drivers/clk/sunxi-ng/ccu-sun9i-a80.c
+++ b/drivers/clk/sunxi-ng/ccu-sun9i-a80.c
@@ -1243,6 +1243,7 @@ static struct platform_driver sun9i_a80_ccu_driver = {
 	.probe	= sun9i_a80_ccu_probe,
 	.driver	= {
 		.name	= "sun9i-a80-ccu",
+		.suppress_bind_attrs = true,
 		.of_match_table	= sun9i_a80_ccu_ids,
 	},
 };