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2020-09-09net: dsa: microchip: Improve phy mode messagePaul Barker1-5/+15
Always print the selected phy mode for the CPU port when using the ksz9477 driver. If the phy mode was changed, also print the previous mode to aid in debugging. To make the message more clear, prefix it with the port number which it applies to and improve the language a little. Signed-off-by: Paul Barker <pbarker@konsulko.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-09net: dsa: microchip: Make switch detection more informativePaul Barker1-0/+3
To make switch detection more informative print the result of the ksz9477/ksz9893 compatibility check. With debug output enabled also print the contents of the Chip ID registers as a 40-bit hex string. As this detection is the first communication with the switch performed by the driver, making it easy to see any errors here will help identify issues with SPI data corruption or reset sequencing. Signed-off-by: Paul Barker <pbarker@konsulko.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-23treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva1-1/+1
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-07-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller3-23/+23
The UDP reuseport conflict was a little bit tricky. The net-next code, via bpf-next, extracted the reuseport handling into a helper so that the BPF sk lookup code could invoke it. At the same time, the logic for reuseport handling of unconnected sockets changed via commit efc6b6f6c3113e8b203b9debfb72d81e0f3dcace which changed the logic to carry on the reuseport result into the rest of the lookup loop if we do not return immediately. This requires moving the reuseport_has_conns() logic into the callers. While we are here, get rid of inline directives as they do not belong in foo.c files. The other changes were cases of more straightforward overlapping modifications. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-21net: dsa: microchip: call phy_remove_link_mode during probeHelmut Grohne3-23/+23
When doing "ip link set dev ... up" for a ksz9477 backed link, ksz9477_phy_setup is called and it calls phy_remove_link_mode to remove 1000baseT HDX. During phy_remove_link_mode, phy_advertise_supported is called. Doing so reverts any previous change to advertised link modes e.g. using a udevd .link file. phy_remove_link_mode is not meant to be used while opening a link and should be called during phy probe when the link is not yet available to userspace. Therefore move the phy_remove_link_mode calls into ksz9477_switch_register. It indirectly calls dsa_register_switch, which creates the relevant struct phy_devices and we update the link modes right after that. At that time dev->features is already initialized by ksz9477_switch_detect. Remove phy_setup from ksz_dev_ops as no users remain. Link: https://lore.kernel.org/netdev/20200715192722.GD1256692@lunn.ch/ Fixes: 42fc6a4c613019 ("net: dsa: microchip: prepare PHY for proper advertisement") Signed-off-by: Helmut Grohne <helmut.grohne@intenta.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller3-0/+7
All conflicts seemed rather trivial, with some guidance from Saeed Mameed on the tc_ct.c one. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-04net: dsa: microchip: remove unused private membersCodrin Ciubotariu4-80/+2
Private structure members live_ports, on_ports, rx_ports, tx_ports are initialized but not used anywhere. Let's remove them. Suggested-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-04net: dsa: microchip: split adjust_link() in phylink_mac_link_{up|down}()Codrin Ciubotariu4-16/+29
The DSA subsystem moved to phylink and adjust_link() became deprecated in the process. This patch removes adjust_link from the KSZ DSA switches and adds phylink_mac_link_up() and phylink_mac_link_down(). Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02net: dsa: microchip: set the correct number of portsCodrin Ciubotariu2-0/+6
The number of ports is incorrectly set to the maximum available for a DSA switch. Even if the extra ports are not used, this causes some functions to be called later, like port_disable() and port_stp_state_set(). If the driver doesn't check the port index, it will end up modifying unknown registers. Fixes: b987e98e50ab ("dsa: add DSA switch driver for Microchip KSZ9477") Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-01net: dsa: microchip: enable ksz9893 via i2c in the ksz9477 driverHelmut Grohne1-0/+1
The KSZ9893 3-Port Gigabit Ethernet Switch can be controlled via SPI, I²C or MDIO (very limited and not supported by this driver). While there is already a compatible entry for the SPI bus, it was missing for I²C. Signed-off-by: Helmut Grohne <helmut.grohne@intenta.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-31net: dsa: ksz: Select KSZ protocol tagCodrin Ciubotariu1-0/+1
KSZ protocol tag is needed by the KSZ DSA drivers. Fixes: 0b9f9dfbfab4 ("dsa: Allow tag drivers to be built as modules") Tested-by: Cristian Birsan <cristian.birsan@microchip.com> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-10net: dsa: microchip: use delayed_work instead of timer + workGeorge McCollister2-20/+9
Simplify ksz_common.c by using delayed_work instead of a combination of timer and work. Signed-off-by: George McCollister <george.mccollister@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-07net: dsa: microchip: enable module autoprobeRazvan Stefanescu1-0/+6
This matches /sys/devices/.../spi1.0/modalias content. Fixes: 9b2d9f05cddf ("net: dsa: microchip: add ksz9567 to ksz9477 driver") Fixes: d9033ae95cf4 ("net: dsa: microchip: add KSZ8563 compatibility string") Fixes: 8c29bebb1f8a ("net: dsa: microchip: add KSZ9893 switch support") Fixes: 45316818371d ("net: dsa: add support for ksz9897 ethernet switch") Fixes: b987e98e50ab ("dsa: add DSA switch driver for Microchip KSZ9477") Signed-off-by: Razvan Stefanescu <razvan.stefanescu@microchip.com> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-08net: dsa: Get information about stacked DSA protocolFlorian Fainelli2-2/+4
It is possible to stack multiple DSA switches in a way that they are not part of the tree (disjoint) but the DSA master of a switch is a DSA slave of another. When that happens switch drivers may have to know this is the case so as to determine whether their tagging protocol has a remove chance of working. This is useful for specific switch drivers such as b53 where devices have been known to be stacked in the wild without the Broadcom tag protocol supporting that feature. This allows b53 to continue supporting those devices by forcing the disabling of Broadcom tags on the outermost switches if necessary. The get_tag_protocol() function is therefore updated to gain an additional enum dsa_tag_protocol argument which denotes the current tagging protocol used by the DSA master we are attached to, else DSA_TAG_PROTO_NONE for the top of the dsa_switch_tree. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-04net: of_get_phy_mode: Change API to solve int/unit warningsAndrew Lunn1-3/+4
Before this change of_get_phy_mode() returned an enum, phy_interface_t. On error, -ENODEV etc, is returned. If the result of the function is stored in a variable of type phy_interface_t, and the compiler has decided to represent this as an unsigned int, comparision with -ENODEV etc, is a signed vs unsigned comparision. Fix this problem by changing the API. Make the function return an error, or 0 on success, and pass a pointer, of type phy_interface_t, where the phy mode should be stored. v2: Return with *interface set to PHY_INTERFACE_MODE_NA on error. Add error checks to all users of of_get_phy_mode() Fixup a few reverse christmas tree errors Fixup a few slightly malformed reverse christmas trees v3: Fix 0-day reported errors. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-22net: dsa: remove dsa_switch_alloc helperVivien Didelot1-1/+4
Now that ports are dynamically listed in the fabric, there is no need to provide a special helper to allocate the dsa_switch structure. This will give more flexibility to drivers to embed this structure as they wish in their private structure. Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller7-17/+32
Several cases of overlapping changes which were for the most part trivially resolvable. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-17net: dsa: microchip: Add shared regmap mutexMarek Vasut5-9/+28
The KSZ driver uses one regmap per register width (8/16/32), each with it's own lock, but accessing the same set of registers. In theory, it is possible to create a race condition between these regmaps, although the underlying bus (SPI or I2C) locking should assure nothing bad will really happen and the accesses would be correct. To make the driver do the right thing, add one single shared mutex for all the regmaps used by the driver instead. This assures that even if some future hardware is on a bus which does not serialize the accesses the same way SPI or I2C does, nothing bad will happen. Note that the status_mutex was unused and only initied, hence it was renamed and repurposed as the regmap mutex. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: David S. Miller <davem@davemloft.net> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: George McCollister <george.mccollister@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <woojung.huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-17net: dsa: microchip: Do not reinit mutexes on KSZ87xxMarek Vasut1-4/+0
The KSZ87xx driver calls mutex_init() on mutexes already inited in ksz_common.c ksz_switch_register(). Do not do it twice, drop the reinitialization. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: David S. Miller <davem@davemloft.net> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: George McCollister <george.mccollister@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <woojung.huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15net: dsa: microchip: Use the correct style for SPDX License IdentifierNishad Kamdar2-4/+4
This patch corrects the SPDX License Identifier style in header files related to Distributed Switch Architecture drivers for Microchip KSZ series switch support. For C header files Documentation/process/license-rules.rst mandates C-like comments (opposed to C source files where C++ style should be used) Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-06net: dsa: ksz9477: fix platform_no_drv_owner.cocci warningYueHaibing1-1/+0
Remove .owner field if calls are used which set it automatically Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: dsa: microchip: Always set regmap stride to 1Marek Vasut1-1/+1
The regmap stride is set to 1 for regmap describing 8bit registers already. However, for 16/32/64bit registers, the stride is 2/4/8 respectively. This is not correct, as the switch protocol supports unaligned register reads and writes and the KSZ87xx even uses such unaligned register accesses to read e.g. MIB counter. This patch fixes MIB counter access on KSZ87xx. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: David S. Miller <davem@davemloft.net> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: George McCollister <george.mccollister@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Cc: Woojung Huh <woojung.huh@microchip.com> Fixes: 46558d601cb6 ("net: dsa: microchip: Initial SPI regmap support") Fixes: 255b59ad0db2 ("net: dsa: microchip: Factor out regmap config generation into common header") Reviewed-by: George McCollister <george.mccollister@gmail.com> Tested-by: George McCollister <george.mccollister@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-12net: dsa: microchip: add ksz9567 to ksz9477 driverGeorge McCollister3-0/+11
Add support for the KSZ9567 7-Port Gigabit Ethernet Switch to the ksz9477 driver. The KSZ9567 supports both SPI and I2C. Oddly the ksz9567 is already in the device tree binding documentation. Signed-off-by: George McCollister <george.mccollister@gmail.com> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-12net: dsa: microchip: add KSZ9477 I2C driverTristram Ha4-0/+110
Add KSZ9477 I2C driver support. The code ksz9477.c and ksz_common.c are used together to generate the I2C driver. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> [george.mccollister@gmail.com: bring up to date, use ksz_common regmap macros] Signed-off-by: George McCollister <george.mccollister@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller2-0/+2
r8152 conflicts are the NAPI fixes in 'net' overlapping with some tasklet stuff in net-next Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-31net: dsa: microchip: add KSZ8563 compatibility stringRazvan Stefanescu1-0/+1
It is a 3-Port 10/100 Ethernet Switch with 1588v2 PTP. Signed-off-by: Razvan Stefanescu <razvan.stefanescu@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-31net: dsa: microchip: fill regmap_config nameGeorge McCollister1-0/+1
Use the register value width as the regmap_config name to prevent the following error when the second and third regmap_configs are initialized. "debugfs: Directory '${bus-id}' with parent 'regmap' already present!" Signed-off-by: George McCollister <george.mccollister@gmail.com> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-20net: dsa: do not enable or disable non user portsVivien Didelot1-0/+6
The .port_enable and .port_disable operations are currently only called for user ports, hence assuming they have a slave device. In preparation for using these operations for other port types as well, simply guard all implementations against non user ports and return directly in such case. Note that bcm_sf2_sw_suspend() currently calls bcm_sf2_port_disable() (and thus b53_disable_port()) against the user and CPU ports, so do not guards those functions. They will be called for unused ports in the future, but that was expected by those drivers anyway. Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-06net: dsa: ksz: Drop NET_DSA_TAG_KSZ9477Marek Vasut1-1/+0
This Kconfig option is unused, drop it. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: David S. Miller <davem@davemloft.net> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Vivien Didelot <vivien.didelot@gmail.com> Cc: Woojung Huh <woojung.huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-06net: dsa: ksz: Merge ksz_priv.h into ksz_common.hMarek Vasut7-161/+144
Merge the two headers into one, no functional change. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: David S. Miller <davem@davemloft.net> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Vivien Didelot <vivien.didelot@gmail.com> Cc: Woojung Huh <woojung.huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-06net: dsa: ksz: Remove dead code and fix warningsMarek Vasut2-11/+1
Remove ksz_port_cleanup(), which is unused. Add missing include "ksz_common.h", which fixes the following warning when built with make ... W=1 drivers/net/dsa/microchip/ksz_common.c:23:6: warning: no previous prototype for ‘...’ [-Wmissing-prototypes] Note that the order of the headers cannot be swapped, as that would trigger missing forward declaration errors, which would indicate the way forward is to merge the two headers into one. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: David S. Miller <davem@davemloft.net> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Vivien Didelot <vivien.didelot@gmail.com> Cc: Woojung Huh <woojung.huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-30net: dsa: ksz: Add Microchip KSZ8795 DSA driverTristram Ha8-1/+2469
Add Microchip KSZ8795 DSA driver. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: David S. Miller <davem@davemloft.net> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Vivien Didelot <vivien.didelot@gmail.com> Cc: Woojung Huh <woojung.huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-3/+3
The new route handling in ip_mc_finish_output() from 'net' overlapped with the new support for returning congestion notifications from BPF programs. In order to handle this I had to take the dev_loopback_xmit() calls out of the switch statement. The aquantia driver conflicts were simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Replace bit RMW with regmapMarek Vasut1-12/+10
Regmap provides read-modify-write function to update bitfields in registers. Replace ad-hoc read-modify-write with regmap_update_bits() where applicable. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Replace ksz9477_wait_alu_sta_ready polling with regmapMarek Vasut1-20/+12
Regmap provides polling function to poll for bits in a register. This function is another reimplementation of polling for bit being clear in a register. Replace this with regmap polling function. Moreover, inline the function parameters, as the function is never called with any other parameter values than this one. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Replace ksz9477_wait_alu_ready polling with regmapMarek Vasut1-22/+12
Regmap provides polling function to poll for bits in a register. This function is another reimplementation of polling for bit being clear in a register. Replace this with regmap polling function. Moreover, inline the function parameters, as the function is never called with any other parameter values than this one. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Replace ksz9477_wait_vlan_ctrl_ready polling with regmapMarek Vasut1-18/+8
Regmap provides polling function to poll for bits in a register. This function is another reimplementation of polling for bit being clear in a register. Replace this with regmap polling function. Moreover, inline the function parameters, as the function is never called with any other parameter values than this one. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Replace ad-hoc polling with regmapMarek Vasut2-23/+5
Regmap provides polling function to poll for bits in a register, use in instead of reimplementing it. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Replace ad-hoc bit manipulation with regmapMarek Vasut1-40/+6
Regmap provides bit manipulation functions to set/clear bits, use those insted of reimplementing them. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Factor out regmap config generation into common headerMarek Vasut2-26/+35
The regmap config tables are rather similar for various generations of the KSZ8xxx/KSZ9xxx switches. Introduce a macro which allows generating those tables without duplication. Note that $regalign parameter is not used right now, but will be used in KSZ87xx series switches. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Dispose of ksz_io_opsMarek Vasut4-112/+17
Since the driver now uses regmap , get rid of ad-hoc ksz_io_ops abstraction, which no longer has any meaning. Moreover, since regmap has it's own locking, get rid of the register access mutex. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Initial SPI regmap supportMarek Vasut3-66/+52
Add basic SPI regmap support into the driver. Previous patches unconver that ksz_spi_write() is always ever called with len = 1, 2 or 4. We can thus drop the if (len > SPI_TX_BUF_LEN) check and we can also drop the allocation of the txbuf which is part of the driver data and wastes 256 bytes for no reason. Regmap covers the whole thing now. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Factor out register access opcode generationMarek Vasut1-10/+12
Factor out the code which sends out the register read/write opcodes to the switch, since the code differs in single bit between read and write. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Use PORT_CTRL_ADDR() instead of indirect function callMarek Vasut1-1/+1
The indirect function call to dev->dev_ops->get_port_addr() is expensive especially if called for every single register access, and only returns the value of PORT_CTRL_ADDR() macro. Use PORT_CTRL_ADDR() macro directly instead. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Move ksz_cfg and ksz_port_cfg to ksz9477.cMarek Vasut2-29/+29
These functions are only used by the KSZ9477 code, move them from the header into that code. Note that these functions will be soon replaced by regmap equivalents. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Inline ksz_spi.hMarek Vasut2-60/+42
The functions in the header file are static, and the header file is included from single C file, just inline the code into the C file. The bonus is that it's easier to spot further content to clean up. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Remove ksz_{get,set}()Marek Vasut4-38/+0
These functions and callbacks are never used, remove them. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: microchip: Remove ksz_{read,write}24()Marek Vasut3-49/+0
These functions and callbacks are never used, remove them. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-26net: dsa: microchip: Use gpiod_set_value_cansleep()Marek Vasut1-3/+3
Replace gpiod_set_value() with gpiod_set_value_cansleep(), as the switch reset GPIO can be connected to e.g. I2C GPIO expander and it is perfectly fine for the kernel to sleep for a bit in ksz_switch_register(). Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+3
Honestly all the conflicts were simple overlapping changes, nothing really interesting to report. Signed-off-by: David S. Miller <davem@davemloft.net>