mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-29 05:44:11 +00:00
Code Issues Releases Wiki Activity

Merge branch 'net-ocelot-switch-regressions'

Browse source 
Vladimir Oltean says:

====================
Regressions in Ocelot switch drivers

These are 3 patches which resolve a regression in the Seville driver,
one in the Felix driver and a generic one which affects any kernel
compiled with 2 Kconfig options enabled. All of them have in common my
lack of attention during review/testing. The patches touch the DSA, MFD
and MDIO drivers for Ocelot. I think it would be preferable if all
patches went through netdev (with Lee's Ack).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2023-02-26 18:31:37 +00:00
commit 5f79f12c08
6 changed files with 12 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/mfd/ocelot-core.c
View file

@ -177,7 +177,7 @@ static const struct mfd_cell vsc7512_devs[] = {
.num_resources = ARRAY_SIZE(vsc7512_miim1_resources),
.resources = vsc7512_miim1_resources,
}, {
.name = "ocelot-switch",
.name = "ocelot-ext-switch",
.of_compatible = "mscc,vsc7512-switch",
.num_resources = ARRAY_SIZE(vsc7512_switch_resources),
.resources = vsc7512_switch_resources,

2
drivers/net/dsa/ocelot/felix_vsc9959.c
View file

@ -554,7 +554,7 @@ static const char * const vsc9959_resource_names[TARGET_MAX] = {
* SGMII/QSGMII MAC PCS can be found.
*/
static const struct resource vsc9959_imdio_res =
DEFINE_RES_MEM_NAMED(0x8030, 0x8040, "imdio");
DEFINE_RES_MEM_NAMED(0x8030, 0x10, "imdio");
static const struct reg_field vsc9959_regfields[REGFIELD_MAX] = {
[ANA_ADVLEARN_VLAN_CHK] = REG_FIELD(ANA_ADVLEARN, 6, 6),

2
drivers/net/dsa/ocelot/ocelot_ext.c
View file

@ -149,7 +149,7 @@ MODULE_DEVICE_TABLE(of, ocelot_ext_switch_of_match);
static struct platform_driver ocelot_ext_switch_driver = {
.driver = {
.name = "ocelot-switch",
.name = "ocelot-ext-switch",
.of_match_table = of_match_ptr(ocelot_ext_switch_of_match),
},
.probe = ocelot_ext_probe,

4
drivers/net/dsa/ocelot/seville_vsc9953.c
View file

@ -893,8 +893,8 @@ static int vsc9953_mdio_bus_alloc(struct ocelot *ocelot)
rc = mscc_miim_setup(dev, &bus, "VSC9953 internal MDIO bus",
ocelot->targets[GCB],
ocelot->map[GCB][GCB_MIIM_MII_STATUS & REG_MASK]);
ocelot->map[GCB][GCB_MIIM_MII_STATUS & REG_MASK],
true);
if (rc) {
dev_err(dev, "failed to setup MDIO bus\n");
return rc;

9
drivers/net/mdio/mdio-mscc-miim.c
View file

@ -52,6 +52,7 @@ struct mscc_miim_info {
struct mscc_miim_dev {
struct regmap *regs;
int mii_status_offset;
bool ignore_read_errors;
struct regmap *phy_regs;
const struct mscc_miim_info *info;
struct clk *clk;
@ -135,7 +136,7 @@ static int mscc_miim_read(struct mii_bus *bus, int mii_id, int regnum)
goto out;
}
if (val & MSCC_MIIM_DATA_ERROR) {
if (!miim->ignore_read_errors && !!(val & MSCC_MIIM_DATA_ERROR)) {
ret = -EIO;
goto out;
}
@ -212,7 +213,8 @@ static const struct regmap_config mscc_miim_phy_regmap_config = {
};
int mscc_miim_setup(struct device *dev, struct mii_bus **pbus, const char *name,
struct regmap *mii_regmap, int status_offset)
struct regmap *mii_regmap, int status_offset,
bool ignore_read_errors)
{
struct mscc_miim_dev *miim;
struct mii_bus *bus;
@ -234,6 +236,7 @@ int mscc_miim_setup(struct device *dev, struct mii_bus **pbus, const char *name,
miim->regs = mii_regmap;
miim->mii_status_offset = status_offset;
miim->ignore_read_errors = ignore_read_errors;
*pbus = bus;
@ -285,7 +288,7 @@ static int mscc_miim_probe(struct platform_device *pdev)
return dev_err_probe(dev, PTR_ERR(phy_regmap),
"Unable to create phy register regmap\n");
ret = mscc_miim_setup(dev, &bus, "mscc_miim", mii_regmap, 0);
ret = mscc_miim_setup(dev, &bus, "mscc_miim", mii_regmap, 0, false);
if (ret < 0) {
dev_err(dev, "Unable to setup the MDIO bus\n");
return ret;

2
include/linux/mdio/mdio-mscc-miim.h
View file

@ -14,6 +14,6 @@
int mscc_miim_setup(struct device *device, struct mii_bus **bus,
const char *name, struct regmap *mii_regmap,
int status_offset);
int status_offset, bool ignore_read_errors);
#endif