ARM: OMAP2+: Legacy support for wl12xx when booted with devicetree
authorTony Lindgren <tony@atomide.com>
Fri, 17 May 2013 17:45:10 +0000 (10:45 -0700)
committerTony Lindgren <tony@atomide.com>
Thu, 30 May 2013 19:53:58 +0000 (12:53 -0700)
Without WLAN we cannot switch omap4 to use device tree
only booting. This patch can be reverted when the
binding for wl12xx is added.

Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: devicetree-discuss@lists.ozlabs.org
Tested-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/mach-omap2/devices.c

index 4269fc1456980458f52aec7c95a5694c82d1dee6..d428b95bd137fc38d264934215dc541a7d21e151 100644 (file)
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/err.h>
+#include <linux/gpio.h>
 #include <linux/slab.h>
 #include <linux/of.h>
 #include <linux/pinctrl/machine.h>
 #include <linux/platform_data/omap4-keypad.h>
 #include <linux/platform_data/omap_ocp2scp.h>
 #include <linux/usb/omap_control_usb.h>
+#include <linux/wl12xx.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
@@ -633,6 +635,40 @@ static void __init omap_init_ocp2scp(void)
 static inline void omap_init_ocp2scp(void) { }
 #endif
 
+#if IS_ENABLED(CONFIG_WL12XX)
+
+static struct wl12xx_platform_data wl12xx __initdata;
+
+void __init omap_init_wl12xx_of(void)
+{
+       int ret;
+
+       if (!of_have_populated_dt())
+               return;
+
+       if (of_machine_is_compatible("ti,omap4-sdp")) {
+               wl12xx.board_ref_clock = WL12XX_REFCLOCK_26;
+               wl12xx.board_tcxo_clock = WL12XX_TCXOCLOCK_26;
+               wl12xx.irq = gpio_to_irq(53);
+       } else if (of_machine_is_compatible("ti,omap4-panda")) {
+               wl12xx.board_ref_clock = WL12XX_REFCLOCK_38;
+               wl12xx.irq = gpio_to_irq(53);
+       } else {
+               return;
+       }
+
+       ret = wl12xx_set_platform_data(&wl12xx);
+       if (ret) {
+               pr_err("error setting wl12xx data: %d\n", ret);
+               return;
+       }
+}
+#else
+static inline void omap_init_wl12xx_of(void)
+{
+}
+#endif
+
 /*-------------------------------------------------------------------------*/
 
 static int __init omap2_init_devices(void)
@@ -657,6 +693,9 @@ static int __init omap2_init_devices(void)
                omap_init_mcspi();
                omap_init_sham();
                omap_init_aes();
+       } else {
+               /* These can be removed when bindings are done */
+               omap_init_wl12xx_of();
        }
        omap_init_sti();
        omap_init_rng();