There is no need to pass around all those parameters. The init functions are able to easily extract all the needed setup info on their own.
Signed-off-by: Lucas Stach dev@lynxeye.de --- To clarify why this is a good thing an excerpt from the first round of review: "The intent of this patch is not really to save up on parameters passed, but to make it possible to later move out the controller initialization into the ehci_hcd_init function without having to save away this global state for later use[,thus avoid bloating the file global state]." --- arch/arm/cpu/armv7/tegra20/usb.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/arch/arm/cpu/armv7/tegra20/usb.c b/arch/arm/cpu/armv7/tegra20/usb.c index f151fb2..07c1ade 100644 --- a/arch/arm/cpu/armv7/tegra20/usb.c +++ b/arch/arm/cpu/armv7/tegra20/usb.c @@ -198,11 +198,12 @@ void usbf_reset_controller(struct fdt_usb *config, struct usb_ctlr *usbctlr) }
/* set up the UTMI USB controller with the parameters provided */ -static int init_utmi_usb_controller(struct fdt_usb *config, - struct usb_ctlr *usbctlr, const u32 timing[]) +static int init_utmi_usb_controller(struct fdt_usb *config) { u32 val; int loop_count; + const unsigned *timing; + struct usb_ctlr *usbctlr = config->reg;
clock_enable(config->periph_id);
@@ -229,6 +230,8 @@ static int init_utmi_usb_controller(struct fdt_usb *config, * PLL Delay CONFIGURATION settings. The following parameters control * the bring up of the plls. */ + timing = usb_pll[clock_get_osc_freq()]; + val = readl(&usbctlr->utmip_misc_cfg1); clrsetbits_le32(&val, UTMIP_PLLU_STABLE_COUNT_MASK, timing[PARAM_STABLE_COUNT] << UTMIP_PLLU_STABLE_COUNT_SHIFT); @@ -331,12 +334,12 @@ static int init_utmi_usb_controller(struct fdt_usb *config, #endif
/* set up the ULPI USB controller with the parameters provided */ -static int init_ulpi_usb_controller(struct fdt_usb *config, - struct usb_ctlr *usbctlr) +static int init_ulpi_usb_controller(struct fdt_usb *config) { u32 val; int loop_count; struct ulpi_viewport ulpi_vp; + struct usb_ctlr *usbctlr = config->reg;
/* set up ULPI reference clock on pllp_out4 */ clock_enable(PERIPH_ID_DEV2_OUT); @@ -408,8 +411,7 @@ static int init_ulpi_usb_controller(struct fdt_usb *config, return 0; } #else -static int init_ulpi_usb_controller(struct fdt_usb *config, - struct usb_ctlr *usbctlr) +static int init_ulpi_usb_controller(struct fdt_usb *config) { printf("No code to set up ULPI controller, please enable" "CONFIG_USB_ULPI and CONFIG_USB_ULPI_VIEWPORT"); @@ -430,22 +432,20 @@ static void config_clock(const u32 timing[]) * @param config USB port configuration * @return 0 if ok, -1 if error (too many ports) */ -static int add_port(struct fdt_usb *config, const u32 timing[]) +static int add_port(struct fdt_usb *config) { - struct usb_ctlr *usbctlr = config->reg; - if (port_count == USB_PORTS_MAX) { printf("tegrausb: Cannot register more than %d ports\n", USB_PORTS_MAX); return -1; }
- if (config->utmi && init_utmi_usb_controller(config, usbctlr, timing)) { + if (config->utmi && init_utmi_usb_controller(config)) { printf("tegrausb: Cannot init port\n"); return -1; }
- if (config->ulpi && init_ulpi_usb_controller(config, usbctlr)) { + if (config->ulpi && init_ulpi_usb_controller(config)) { printf("tegrausb: Cannot init port\n"); return -1; } @@ -558,7 +558,7 @@ int board_usb_init(const void *blob) return -1; }
- if (add_port(&config, usb_pll[freq])) + if (add_port(&config)) return -1; set_host_mode(&config); }