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path: root/drivers/phy/tegra
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2018-09-25phy: Convert to using %pOFn instead of device_node.nameRob Herring1-2/+2
In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-05-20phy: tegra: Convert to use match_string() helperAndy Shevchenko1-14/+1
The new helper returns index of the matching string in an array. We are going to use it here. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-03-16phy: tegra: xusb: Uncomment register writeThierry Reding1-4/+2
The reason why this was originally commented out is no longer clear. The UPHY driver for SATA works fine with or without this change. The reset value of the XDIGCLK_EN bit is 0, so unless programmed by the bootloader this shouldn't make a difference anyway. Define a macro for this bit and uncomment the code. This also fixes a coverity issue brought to my attention by Rohith because not only is the XDIGCLK_EN field modification commented out, but also the register write which causes none of the earlier modifications of the register value to be written to the register and the value being overwritten. Reported-by: Rohith Seelaboyina <rseelaboyina@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-02-21phy: tegra: remove redundant self assignment of 'map'Colin Ian King1-1/+1
The assignment of map to itself is redundant and can be removed. Detected with Coccinelle. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-12-15phy: tegra: fix device-tree node lookupsJohan Hovold1-29/+29
Fix child-node lookups during probe, which ended up searching the whole device tree depth-first starting at the parents rather than just matching on their children. To make things worse, some parent nodes could end up being being prematurely freed (by tegra_xusb_pad_register()) as of_find_node_by_name() drops a reference to its first argument. Fixes: 53d2a715c240 ("phy: Add Tegra XUSB pad controller support") Cc: stable <stable@vger.kernel.org> # 4.7 Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-09-26phy: tegra: Handle return value of kasprintfArvind Yadav1-0/+2
kasprintf() can fail and it's return value must be checked. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18phy: fix returnvar.cocci warningsVivek Gautam1-2/+1
Remove unneeded variables when "0" can be returned. Generated by: scripts/coccinelle/misc/returnvar.cocci Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Cc: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-18phy: Fix ptr_ret.cocci warningsVivek Gautam1-8/+2
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR. Generated by: scripts/coccinelle/api/ptr_ret.cocci Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Cc: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10phy: tegra: mark tegra_xusb_lane_lookup_function() staticBaoyou Xie1-1/+2
We get 1 warning when building kernel with W=1: drivers/phy/tegra/xusb.c:104:5: warning: no previous prototype for 'tegra_xusb_lane_lookup_function' [-Wmissing-prototypes] In fact, this function is only used in the file in which it is declared and don't need a declaration, but can be made static. So this patch marks it 'static'. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-09-10phy: tegra: add missing header dependenciesBaoyou Xie1-0/+1
We get 5 warnings when building kernel with W=1: drivers/phy/tegra/xusb.c:948:27: warning: no previous prototype for 'tegra_xusb_padctl_get' [-Wmissing-prototypes] drivers/phy/tegra/xusb.c:981:6: warning: no previous prototype for 'tegra_xusb_padctl_put' [-Wmissing-prototypes] drivers/phy/tegra/xusb.c:988:5: warning: no previous prototype for 'tegra_xusb_padctl_usb3_save_context' [-Wmissing-prototypes] drivers/phy/tegra/xusb.c:998:5: warning: no previous prototype for 'tegra_xusb_padctl_hsic_set_idle' [-Wmissing-prototypes] drivers/phy/tegra/xusb.c:1008:5: warning: no previous prototype for 'tegra_xusb_padctl_usb3_set_lfps_detect' [-Wmissing-prototypes] In fact, these functions are declared in linux/phy/tegra/xusb.h, so this patch adds missing header dependencies. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-04-29phy: tegra: Add Tegra210 supportThierry Reding2-0/+2046
Add support for the XUSB pad controller found on Tegra210 SoCs. The hardware is roughly the same, but some of the registers have been moved around and the number and type of supported pads has changed. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-29phy: Add Tegra XUSB pad controller supportThierry Reding5-0/+3207
Add a new driver for the XUSB pad controller found on NVIDIA Tegra SoCs. This hardware block used to be exposed as a pin controller, but it turns out that this isn't a good fit. The new driver and DT binding much more accurately describe the hardware and are more flexible in supporting new SoC generations. Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Thierry Reding <treding@nvidia.com>