| Message ID | 20240716213131.6036-9-james.quinlan@broadcom.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | PCI: brcnstb: Enable STB 7712 SOC | expand |
On Tue, Jul 16, 2024 at 05:31:23PM -0400, Jim Quinlan wrote: > We've been assuming that if an SOC has a "rescal" reset controller that we > should automatically invoke brcm_phy_cntl(...). This will not be true in > future SOCs, so we create a bool "has_phy" and adjust the cfg_data > appropriately (we need to give 7216 its own cfg_data structure instead of > sharing one). > In all commit messages, use imperative tone as per kernel documentation: "Describe your changes in imperative mood, e.g. "make xyzzy do frotz" instead of "[This patch] makes xyzzy do frotz" or "[I] changed xyzzy to do frotz", as if you are giving orders to the codebase to change its behaviour." > Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com> > Reviewed-by: Stanimir Varbanov <svarbanov@suse.de> > Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> > --- > drivers/pci/controller/pcie-brcmstb.c | 17 ++++++++++++++--- > 1 file changed, 14 insertions(+), 3 deletions(-) > > diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c > index dfb404748ad8..8ab5a8ca05b4 100644 > --- a/drivers/pci/controller/pcie-brcmstb.c > +++ b/drivers/pci/controller/pcie-brcmstb.c > @@ -222,6 +222,7 @@ enum pcie_type { > struct pcie_cfg_data { > const int *offsets; > const enum pcie_type type; > + const bool has_phy; 'has_phy' means the controller supports PHY and the new SoC doesn't have a PHY for the controller? - Mani
On Thu, Jul 25, 2024 at 12:48 AM Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> wrote: > > On Tue, Jul 16, 2024 at 05:31:23PM -0400, Jim Quinlan wrote: > > We've been assuming that if an SOC has a "rescal" reset controller that we > > should automatically invoke brcm_phy_cntl(...). This will not be true in > > future SOCs, so we create a bool "has_phy" and adjust the cfg_data > > appropriately (we need to give 7216 its own cfg_data structure instead of > > sharing one). > > > > In all commit messages, use imperative tone as per kernel documentation: > > "Describe your changes in imperative mood, e.g. "make xyzzy do frotz" > instead of "[This patch] makes xyzzy do frotz" or "[I] changed xyzzy > to do frotz", as if you are giving orders to the codebase to change > its behaviour." ack > > > Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com> > > Reviewed-by: Stanimir Varbanov <svarbanov@suse.de> > > Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> > > --- > > drivers/pci/controller/pcie-brcmstb.c | 17 ++++++++++++++--- > > 1 file changed, 14 insertions(+), 3 deletions(-) > > > > diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c > > index dfb404748ad8..8ab5a8ca05b4 100644 > > --- a/drivers/pci/controller/pcie-brcmstb.c > > +++ b/drivers/pci/controller/pcie-brcmstb.c > > @@ -222,6 +222,7 @@ enum pcie_type { > > struct pcie_cfg_data { > > const int *offsets; > > const enum pcie_type type; > > + const bool has_phy; > > 'has_phy' means the controller supports PHY and the new SoC doesn't have a PHY > for the controller? Well they all have a phy but in this case parts of it are exposed to SW. Perhaps "has_phy_cntl" would suffice? Regards, Jim Quinlan Broadcom STB/CM > > - Mani > > -- > மணிவண்ணன் சதாசிவம்
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c index dfb404748ad8..8ab5a8ca05b4 100644 --- a/drivers/pci/controller/pcie-brcmstb.c +++ b/drivers/pci/controller/pcie-brcmstb.c @@ -222,6 +222,7 @@ enum pcie_type { struct pcie_cfg_data { const int *offsets; const enum pcie_type type; + const bool has_phy; void (*perst_set)(struct brcm_pcie *pcie, u32 val); void (*bridge_sw_init_set)(struct brcm_pcie *pcie, u32 val); }; @@ -272,6 +273,7 @@ struct brcm_pcie { void (*bridge_sw_init_set)(struct brcm_pcie *pcie, u32 val); struct subdev_regulators *sr; bool ep_wakeup_capable; + bool has_phy; }; static inline bool is_bmips(const struct brcm_pcie *pcie) @@ -1311,12 +1313,12 @@ static int brcm_phy_cntl(struct brcm_pcie *pcie, const int start) static inline int brcm_phy_start(struct brcm_pcie *pcie) { - return pcie->rescal ? brcm_phy_cntl(pcie, 1) : 0; + return pcie->has_phy ? brcm_phy_cntl(pcie, 1) : 0; } static inline int brcm_phy_stop(struct brcm_pcie *pcie) { - return pcie->rescal ? brcm_phy_cntl(pcie, 0) : 0; + return pcie->has_phy ? brcm_phy_cntl(pcie, 0) : 0; } static void brcm_pcie_turn_off(struct brcm_pcie *pcie) @@ -1559,12 +1561,20 @@ static const struct pcie_cfg_data bcm2711_cfg = { .bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic, }; +static const struct pcie_cfg_data bcm7216_cfg = { + .offsets = pcie_offset_bcm7278, + .type = BCM7278, + .perst_set = brcm_pcie_perst_set_7278, + .bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_7278, + .has_phy = true, +}; + static const struct of_device_id brcm_pcie_match[] = { { .compatible = "brcm,bcm2711-pcie", .data = &bcm2711_cfg }, { .compatible = "brcm,bcm4908-pcie", .data = &bcm4908_cfg }, { .compatible = "brcm,bcm7211-pcie", .data = &generic_cfg }, { .compatible = "brcm,bcm7278-pcie", .data = &bcm7278_cfg }, - { .compatible = "brcm,bcm7216-pcie", .data = &bcm7278_cfg }, + { .compatible = "brcm,bcm7216-pcie", .data = &bcm7216_cfg }, { .compatible = "brcm,bcm7445-pcie", .data = &generic_cfg }, { .compatible = "brcm,bcm7435-pcie", .data = &bcm7435_cfg }, { .compatible = "brcm,bcm7425-pcie", .data = &bcm7425_cfg }, @@ -1612,6 +1622,7 @@ static int brcm_pcie_probe(struct platform_device *pdev) pcie->type = data->type; pcie->perst_set = data->perst_set; pcie->bridge_sw_init_set = data->bridge_sw_init_set; + pcie->has_phy = data->has_phy; pcie->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(pcie->base))