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authorMarek Szyprowski <m.szyprowski@samsung.com>2019-07-19 14:25:32 +0200
committerKishon Vijay Abraham I <kishon@ti.com>2019-08-23 09:40:59 +0530
commit6aeec986f1bc5d8b30bf23b2bf330deed28f37ea (patch)
treeb5f178d3748f57a4d6d80b4e8d6aa21aa0bdc91a
parentbbae18f0fc621df81d05d614eff31f90495516d3 (diff)
downloadlinux-6aeec986f1bc5d8b30bf23b2bf330deed28f37ea.tar.bz2
phy: samsung: disable bind/unbind platform driver feature
Samsung PHY drivers control the power to the SoC core components needed by their client devices (USB HCDs, SATA, camera ISP bridge, DP encoder) to properly operate. Disabling PHYs in runtime usually causes the client device to crash with external abort exception or similar issue due to lack of API to notify clients about PHY removal. This patch removes the possiblity to unbind Samsung Exynos PHY drivers in runtime. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
-rw-r--r--drivers/phy/samsung/phy-exynos-dp-video.c1
-rw-r--r--drivers/phy/samsung/phy-exynos-mipi-video.c1
-rw-r--r--drivers/phy/samsung/phy-exynos-pcie.c1
-rw-r--r--drivers/phy/samsung/phy-exynos5-usbdrd.c1
-rw-r--r--drivers/phy/samsung/phy-exynos5250-sata.c1
-rw-r--r--drivers/phy/samsung/phy-samsung-usb2.c1
6 files changed, 6 insertions, 0 deletions
diff --git a/drivers/phy/samsung/phy-exynos-dp-video.c b/drivers/phy/samsung/phy-exynos-dp-video.c
index aebd216dcf2f..6c607df1dc9a 100644
--- a/drivers/phy/samsung/phy-exynos-dp-video.c
+++ b/drivers/phy/samsung/phy-exynos-dp-video.c
@@ -109,6 +109,7 @@ static struct platform_driver exynos_dp_video_phy_driver = {
.driver = {
.name = "exynos-dp-video-phy",
.of_match_table = exynos_dp_video_phy_of_match,
+ .suppress_bind_attrs = true,
}
};
module_platform_driver(exynos_dp_video_phy_driver);
diff --git a/drivers/phy/samsung/phy-exynos-mipi-video.c b/drivers/phy/samsung/phy-exynos-mipi-video.c
index 3784bf100b95..bb51195f189f 100644
--- a/drivers/phy/samsung/phy-exynos-mipi-video.c
+++ b/drivers/phy/samsung/phy-exynos-mipi-video.c
@@ -359,6 +359,7 @@ static struct platform_driver exynos_mipi_video_phy_driver = {
.driver = {
.of_match_table = exynos_mipi_video_phy_of_match,
.name = "exynos-mipi-video-phy",
+ .suppress_bind_attrs = true,
}
};
module_platform_driver(exynos_mipi_video_phy_driver);
diff --git a/drivers/phy/samsung/phy-exynos-pcie.c b/drivers/phy/samsung/phy-exynos-pcie.c
index 1b4ba8bdb43c..659e7ae0a6cf 100644
--- a/drivers/phy/samsung/phy-exynos-pcie.c
+++ b/drivers/phy/samsung/phy-exynos-pcie.c
@@ -272,6 +272,7 @@ static struct platform_driver exynos_pcie_phy_driver = {
.driver = {
.of_match_table = exynos_pcie_phy_match,
.name = "exynos_pcie_phy",
+ .suppress_bind_attrs = true,
}
};
diff --git a/drivers/phy/samsung/phy-exynos5-usbdrd.c b/drivers/phy/samsung/phy-exynos5-usbdrd.c
index 646259bee909..e510732afb8b 100644
--- a/drivers/phy/samsung/phy-exynos5-usbdrd.c
+++ b/drivers/phy/samsung/phy-exynos5-usbdrd.c
@@ -953,6 +953,7 @@ static struct platform_driver exynos5_usb3drd_phy = {
.driver = {
.of_match_table = exynos5_usbdrd_phy_of_match,
.name = "exynos5_usb3drd_phy",
+ .suppress_bind_attrs = true,
}
};
diff --git a/drivers/phy/samsung/phy-exynos5250-sata.c b/drivers/phy/samsung/phy-exynos5250-sata.c
index 9e5fc126032c..4dd7324d91b2 100644
--- a/drivers/phy/samsung/phy-exynos5250-sata.c
+++ b/drivers/phy/samsung/phy-exynos5250-sata.c
@@ -237,6 +237,7 @@ static struct platform_driver exynos_sata_phy_driver = {
.driver = {
.of_match_table = exynos_sata_phy_of_match,
.name = "samsung,sata-phy",
+ .suppress_bind_attrs = true,
}
};
module_platform_driver(exynos_sata_phy_driver);
diff --git a/drivers/phy/samsung/phy-samsung-usb2.c b/drivers/phy/samsung/phy-samsung-usb2.c
index 6c82f4fbe8a2..090aa02e02de 100644
--- a/drivers/phy/samsung/phy-samsung-usb2.c
+++ b/drivers/phy/samsung/phy-samsung-usb2.c
@@ -250,6 +250,7 @@ static struct platform_driver samsung_usb2_phy_driver = {
.driver = {
.of_match_table = samsung_usb2_phy_of_match,
.name = "samsung-usb2-phy",
+ .suppress_bind_attrs = true,
}
};