kernel/linux.git/drivers/phy/renesas, branch v4.14.217

phy: renesas: rcar-gen3-usb2: Fix sysfs interface of "role"

2019-12-17T19:39:52+00:00

[ Upstream commit 4bd5ead82d4b877ebe41daf95f28cda53205b039 ] Since the role_store() uses strncmp(), it's possible to refer out-of-memory if the sysfs data size is smaller than strlen("host"). This patch fixes it by using sysfs_streq() instead of strncmp(). Reported-by: Pavel Machek Fixes: 9bb86777fb71 ("phy: rcar-gen3-usb2: add sysfs for usb role swap") Cc: # v4.10+ Signed-off-by: Yoshihiro Shimoda Reviewed-by: Geert Uytterhoeven Acked-by: Pavel Machek Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Sasha Levin

phy: renesas: rcar-gen3-usb2: fix vbus_ctrl for role sysfs

2019-11-20T17:00:33+00:00

[ Upstream commit 09938ea9d136243e8d1fed6d4d7a257764f28f6d ] This patch fixes and issue that the vbus_ctrl is disabled by rcar_gen3_init_from_a_peri_to_a_host(), so a usb host cannot supply the vbus. Note that this condition will exit when the otg irq happens even if we don't apply this patch. Fixes: 9bb86777fb71 ("phy: rcar-gen3-usb2: add sysfs for usb role swap") Signed-off-by: Yoshihiro Shimoda Reviewed-by: Simon Horman Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Sasha Levin

phy: renesas: rcar-gen3-usb2: Disable clearing VBUS in over-current

2019-09-21T05:15:27+00:00

commit e6839c31a608e79f2057fab987dd814f5d3477e6 upstream. The hardware manual should be revised, but the initial value of VBCTRL.OCCLREN is set to 1 actually. If the bit is set, the hardware clears VBCTRL.VBOUT and ADPCTRL.DRVVBUS registers automatically when the hardware detects over-current signal from a USB power switch. However, since the hardware doesn't have any registers which indicates over-current, the driver cannot handle it at all. So, if "is_otg_channel" hardware detects over-current, since ADPCTRL.DRVVBUS register is cleared automatically, the channel cannot be used after that. To resolve this behavior, this patch sets the VBCTRL.OCCLREN to 0 to keep ADPCTRL.DRVVBUS even if the "is_otg_channel" hardware detects over-current. (We assume a USB power switch itself protects over-current and turns the VBUS off.) This patch is inspired by a BSP patch from Kazuya Mizuguchi. Fixes: 1114e2d31731 ("phy: rcar-gen3-usb2: change the mode to OTG on the combined channel") Cc: # v4.5+ Signed-off-by: Yoshihiro Shimoda Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Greg Kroah-Hartman

phy: renesas: rcar-gen2: Fix memory leak at error paths

2019-07-31T05:28:51+00:00

[ Upstream commit d4a36e82924d3305a17ac987a510f3902df5a4b2 ] This patch fixes memory leak at error paths of the probe function. In for_each_child_of_node, if the loop returns, the driver should call of_put_node() before returns. Reported-by: Julia Lawall Fixes: 1233f59f745b237 ("phy: Renesas R-Car Gen2 PHY driver") Signed-off-by: Yoshihiro Shimoda Reviewed-by: Geert Uytterhoeven Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Sasha Levin

phy: rcar-gen3-usb3: add support for R-Car Gen3 USB 3.0 PHY

2017-06-07T12:25:13+00:00

The USB 3.0 PHY modules of R-Car Gen3 SoCs have: - Spread spectrum clock (ssc). - Using USB 2.0 EXTAL clock instead of USB 3.0 clock. - Enabling VBUS detection for usb3.0 peripheral. So, this driver supports these features. Signed-off-by: Yoshihiro Shimoda Signed-off-by: Kishon Vijay Abraham I

phy: Group vendor specific phy drivers

2017-06-01T09:58:33+00:00

Adding vendor specific directories in phy to group phy drivers under their respective vendor umbrella. Also updated the MAINTAINERS file to reflect the correct directory structure for phy drivers. Signed-off-by: Vivek Gautam Acked-by: Heiko Stuebner Acked-by: Viresh Kumar Acked-by: Krzysztof Kozlowski Acked-by: Yoshihiro Shimoda Reviewed-by: Jaehoon Chung Cc: Kishon Vijay Abraham I Cc: David S. Miller Cc: Geert Uytterhoeven Cc: Yoshihiro Shimoda Cc: Guenter Roeck Cc: Heiko Stuebner Cc: Viresh Kumar Cc: Maxime Ripard Cc: Chen-Yu Tsai Cc: Sylwester Nawrocki Cc: Krzysztof Kozlowski Cc: Jaehoon Chung Cc: Stephen Boyd Cc: Martin Blumenstingl Cc: linux-arm-kernel@lists.infradead.org Cc: linux-arm-msm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-omap@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-usb@vger.kernel.org Signed-off-by: Kishon Vijay Abraham I