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Date: Wed, 1 Sep 2021 00:05:20 -0500
From: Samuel Holland <samuel@...lland.org>
To: Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
Samuel Holland <samuel@...lland.org>
Subject: [PATCH 2/8] 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@...lland.org>
---
drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c | 1 +
drivers/clk/sunxi-ng/ccu-sun50i-a100.c | 1 +
drivers/clk/sunxi-ng/ccu-sun50i-a64.c | 1 +
drivers/clk/sunxi-ng/ccu-sun50i-h6.c | 1 +
drivers/clk/sunxi-ng/ccu-sun8i-a83t.c | 1 +
drivers/clk/sunxi-ng/ccu-sun8i-r40.c | 1 +
drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c | 1 +
drivers/clk/sunxi-ng/ccu-sun9i-a80.c | 1 +
8 files changed, 8 insertions(+)
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,
},
};
--
2.31.1
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