[PATCH 07/12] pcie: designware: add dw_pcie prefix before cfg_read/write
Jagan Teki
jagannadh.teki at gmail.com
Wed Dec 11 06:40:08 EST 2013
On Wed, Dec 11, 2013 at 3:08 PM, Mohit Kumar <mohit.kumar at st.com> wrote:
> From: Pratyush Anand <pratyush.anand at st.com>
>
> cfg_read/write function are designware pcie specific. Add dw_pcie prefix
> to avoid collision in global name space.
>
> Signed-off-by: Pratyush Anand <pratyush.anand at st.com>
> Cc: Mohit Kumar <mohit.kumar at st.com>
> Cc: Jingoo Han <jg1.han at samsung.com>
> Cc: spear-devel at list.st.com
> Cc: linux-pci at vger.kernel.org
> ---
> drivers/pci/host/pci-exynos.c | 5 +++--
> drivers/pci/host/pcie-designware.c | 23 ++++++++++++++---------
> drivers/pci/host/pcie-designware.h | 4 ++--
> 3 files changed, 19 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c
> index 24beed3..3de6bfb 100644
> --- a/drivers/pci/host/pci-exynos.c
> +++ b/drivers/pci/host/pci-exynos.c
> @@ -468,7 +468,7 @@ static int exynos_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
> int ret;
>
> exynos_pcie_sideband_dbi_r_mode(pp, true);
> - ret = cfg_read(pp->dbi_base + (where & ~0x3), where, size, val);
> + ret = dw_pcie_cfg_read(pp->dbi_base + (where & ~0x3), where, size, val);
> exynos_pcie_sideband_dbi_r_mode(pp, false);
> return ret;
> }
> @@ -479,7 +479,8 @@ static int exynos_pcie_wr_own_conf(struct pcie_port *pp, int where, int size,
> int ret;
>
> exynos_pcie_sideband_dbi_w_mode(pp, true);
> - ret = cfg_write(pp->dbi_base + (where & ~0x3), where, size, val);
> + ret = dw_pcie_cfg_write(pp->dbi_base + (where & ~0x3),
> + where, size, val);
> exynos_pcie_sideband_dbi_w_mode(pp, false);
> return ret;
> }
> diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
> index 73aa13c..be6ce30 100644
> --- a/drivers/pci/host/pcie-designware.c
> +++ b/drivers/pci/host/pcie-designware.c
> @@ -32,7 +32,7 @@ static inline struct pcie_port *sys_to_pcie(struct pci_sys_data *sys)
> return sys->private_data;
> }
>
> -int cfg_read(void __iomem *addr, int where, int size, u32 *val)
> +int dw_pcie_cfg_read(void __iomem *addr, int where, int size, u32 *val)
> {
> *val = readl(addr);
>
> @@ -46,7 +46,7 @@ int cfg_read(void __iomem *addr, int where, int size, u32 *val)
> return PCIBIOS_SUCCESSFUL;
> }
>
> -int cfg_write(void __iomem *addr, int where, int size, u32 val)
> +int dw_pcie_cfg_write(void __iomem *addr, int where, int size, u32 val)
> {
> if (size == 4)
> writel(val, addr);
> @@ -84,7 +84,8 @@ static int dw_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
> if (pp->ops->rd_own_conf)
> ret = pp->ops->rd_own_conf(pp, where, size, val);
> else
> - ret = cfg_read(pp->dbi_base + (where & ~0x3), where, size, val);
> + ret = dw_pcie_cfg_read(pp->dbi_base + (where & ~0x3), where,
> + size, val);
>
> return ret;
> }
> @@ -97,8 +98,8 @@ static int dw_pcie_wr_own_conf(struct pcie_port *pp, int where, int size,
> if (pp->ops->wr_own_conf)
> ret = pp->ops->wr_own_conf(pp, where, size, val);
> else
> - ret = cfg_write(pp->dbi_base + (where & ~0x3), where, size,
> - val);
> + ret = dw_pcie_cfg_write(pp->dbi_base + (where & ~0x3), where,
> + size, val);
>
> return ret;
> }
> @@ -534,11 +535,13 @@ static int dw_pcie_rd_other_conf(struct pcie_port *pp, struct pci_bus *bus,
>
> if (bus->parent->number == pp->root_bus_nr) {
> dw_pcie_prog_viewport_cfg0(pp, busdev);
> - ret = cfg_read(pp->va_cfg0_base + address, where, size, val);
> + ret = dw_pcie_cfg_read(pp->va_cfg0_base + address, where, size,
> + val);
> dw_pcie_prog_viewport_mem_outbound(pp);
> } else {
> dw_pcie_prog_viewport_cfg1(pp, busdev);
> - ret = cfg_read(pp->va_cfg1_base + address, where, size, val);
> + ret = dw_pcie_cfg_read(pp->va_cfg1_base + address, where, size,
> + val);
> dw_pcie_prog_viewport_io_outbound(pp);
> }
>
> @@ -557,11 +560,13 @@ static int dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus,
>
> if (bus->parent->number == pp->root_bus_nr) {
> dw_pcie_prog_viewport_cfg0(pp, busdev);
> - ret = cfg_write(pp->va_cfg0_base + address, where, size, val);
> + ret = dw_pcie_cfg_write(pp->va_cfg0_base + address, where, size,
> + val);
> dw_pcie_prog_viewport_mem_outbound(pp);
> } else {
> dw_pcie_prog_viewport_cfg1(pp, busdev);
> - ret = cfg_write(pp->va_cfg1_base + address, where, size, val);
> + ret = dw_pcie_cfg_write(pp->va_cfg1_base + address, where, size,
> + val);
> dw_pcie_prog_viewport_io_outbound(pp);
> }
>
> diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
> index da1ed35..afb1734 100644
> --- a/drivers/pci/host/pcie-designware.h
> +++ b/drivers/pci/host/pcie-designware.h
> @@ -66,8 +66,8 @@ struct pcie_host_ops {
> void (*host_init)(struct pcie_port *pp);
> };
>
> -int cfg_read(void __iomem *addr, int where, int size, u32 *val);
> -int cfg_write(void __iomem *addr, int where, int size, u32 val);
> +int dw_pcie_cfg_read(void __iomem *addr, int where, int size, u32 *val);
> +int dw_pcie_cfg_write(void __iomem *addr, int where, int size, u32 val);
> void dw_handle_msi_irq(struct pcie_port *pp);
> void dw_pcie_msi_init(struct pcie_port *pp);
> int dw_pcie_link_up(struct pcie_port *pp);
> --
> 1.7.0.1
>
> --
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Acked-by: Jagannadha Sutradharudu Teki <jagannadh.teki at gmail.com>
--
Thanks,
Jagan.
--------
Jagannadha Sutradharudu Teki,
E: jagannadh.teki at gmail.com, P: +91-9676773388
Engineer - System Software Hacker
U-boot - SPI Custodian and Zynq APSOC
Ln: http://www.linkedin.com/in/jaganteki
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