* Ohad Ben-Cohen <ohad@xxxxxxxxxx> [121014 11:32]:
> On Fri, Oct 12, 2012 at 6:24 PM, Tony Lindgren <tony@xxxxxxxxxxx> wrote:
> >> Error setting wl12xx data: -38
> ..
> > Ohad, can you please take a look?
>
> Sure, -38 is -ENOSYS which is returned when the wl12xx driver isn't configured.
>
> This isn't an error (it's a user decision, and it shouldn't elicit any
> error) and the patch below (also attached) should make it go away on:
>
> From 374f145568585c8d6a8d5e4b8b5d3e6baedd2f39 Mon Sep 17 00:00:00 2001
> From: Ohad Ben-Cohen <ohad@xxxxxxxxxx>
> Date: Sun, 14 Oct 2012 20:16:01 +0200
> Subject: [PATCH] ARM: OMAP: don't print any error when wl12xx isn't
> configured
>
> Stop intimidating users with scary wlan error messages in case wl12xx
> support wasn't even built.
>
> In addition, when wl12xx_set_platform_data() fails, don't bother
> registering wl12xx's fixed regulator device (on the relevant
> boards).
>
> While we're at it, extract the wlan init code to a dedicated function to
> make (the relevant boards') init code look a bit nicer.
>
> Reported-by: Russell King <linux@xxxxxxxxxxxxxxxx>
> Signed-off-by: Ohad Ben-Cohen <ohad@xxxxxxxxxx>
Thanks applying into omap-for-v3.7-rc1/fixes-part2.
Regards,
Tony
> ---
> arch/arm/mach-davinci/board-da850-evm.c | 7 ++++++-
> arch/arm/mach-omap2/board-4430sdp.c | 13 ++++++++++--
> arch/arm/mach-omap2/board-omap3evm.c | 11 +++++++++-
> arch/arm/mach-omap2/board-omap3pandora.c | 9 ++++++++-
> arch/arm/mach-omap2/board-omap4panda.c | 30 ++++++++++++++++++++++------
> arch/arm/mach-omap2/board-zoom-peripherals.c | 20 ++++++++++++++++---
> 6 files changed, 76 insertions(+), 14 deletions(-)
>
> diff --git a/arch/arm/mach-davinci/board-da850-evm.c
> b/arch/arm/mach-davinci/board-da850-evm.c
> index 32ee3f8..1b19415 100644
> --- a/arch/arm/mach-davinci/board-da850-evm.c
> +++ b/arch/arm/mach-davinci/board-da850-evm.c
> @@ -1404,8 +1404,13 @@ static __init int da850_wl12xx_init(void)
> da850_wl12xx_wlan_data.irq = gpio_to_irq(DA850_WLAN_IRQ);
>
> ret = wl12xx_set_platform_data(&da850_wl12xx_wlan_data);
> + /* bail out silently in case wl12xx isn't configured */
> + if (ret == -ENOSYS)
> + goto free_wlan_irq;
> +
> + /* bail out verbosely on any other error */
> if (ret) {
> - pr_err("Could not set wl12xx data: %d\n", ret);
> + pr_err("error setting wl12xx data: %d\n", ret);
> goto free_wlan_irq;
> }
>
> diff --git a/arch/arm/mach-omap2/board-4430sdp.c
> b/arch/arm/mach-omap2/board-4430sdp.c
> index 3669c12..d1dd81a 100644
> --- a/arch/arm/mach-omap2/board-4430sdp.c
> +++ b/arch/arm/mach-omap2/board-4430sdp.c
> @@ -826,9 +826,18 @@ static void __init omap4_sdp4430_wifi_init(void)
>
> omap4_sdp4430_wifi_mux_init();
> omap4_sdp4430_wlan_data.irq = gpio_to_irq(GPIO_WIFI_IRQ);
> +
> ret = wl12xx_set_platform_data(&omap4_sdp4430_wlan_data);
> - if (ret)
> - pr_err("Error setting wl12xx data: %d\n", ret);
> + /* bail out silently in case wl12xx isn't configured */
> + if (ret == -ENOSYS)
> + return;
> +
> + /* bail out verbosely on any other error */
> + if (ret) {
> + pr_err("error setting wl12xx data: %d\n", ret);
> + return;
> + }
> +
> ret = platform_device_register(&omap_vwlan_device);
> if (ret)
> pr_err("Error registering wl12xx device: %d\n", ret);
> diff --git a/arch/arm/mach-omap2/board-omap3evm.c
> b/arch/arm/mach-omap2/board-omap3evm.c
> index b9b776b..7f72e44 100644
> --- a/arch/arm/mach-omap2/board-omap3evm.c
> +++ b/arch/arm/mach-omap2/board-omap3evm.c
> @@ -637,9 +637,18 @@ static void __init omap3_evm_wl12xx_init(void)
>
> /* WL12xx WLAN Init */
> omap3evm_wlan_data.irq = gpio_to_irq(OMAP3EVM_WLAN_IRQ_GPIO);
> +
> ret = wl12xx_set_platform_data(&omap3evm_wlan_data);
> - if (ret)
> + /* bail out silently in case wl12xx isn't configured */
> + if (ret == -ENOSYS)
> + return;
> +
> + /* bail out verbosely on any other error */
> + if (ret) {
> pr_err("error setting wl12xx data: %d\n", ret);
> + return;
> + }
> +
> ret = platform_device_register(&omap3evm_wlan_regulator);
> if (ret)
> pr_err("error registering wl12xx device: %d\n", ret);
> diff --git a/arch/arm/mach-omap2/board-omap3pandora.c
> b/arch/arm/mach-omap2/board-omap3pandora.c
> index 00a1f4a..bbc4001 100644
> --- a/arch/arm/mach-omap2/board-omap3pandora.c
> +++ b/arch/arm/mach-omap2/board-omap3pandora.c
> @@ -549,8 +549,15 @@ static void __init pandora_wl1251_init(void)
>
> pandora_wl1251_pdata.use_eeprom = true;
> ret = wl12xx_set_platform_data(&pandora_wl1251_pdata);
> - if (ret < 0)
> + /* bail out silently in case wl12xx isn't configured */
> + if (ret == -ENOSYS)
> + goto fail_irq;
> +
> + /* bail out verbosely on any other error */
> + if (ret) {
> + pr_err("error setting wl12xx data: %d\n", ret);
> goto fail_irq;
> + }
>
> return;
>
> diff --git a/arch/arm/mach-omap2/board-omap4panda.c
> b/arch/arm/mach-omap2/board-omap4panda.c
> index bfcd397..cc5cdd6 100644
> --- a/arch/arm/mach-omap2/board-omap4panda.c
> +++ b/arch/arm/mach-omap2/board-omap4panda.c
> @@ -486,24 +486,42 @@ static void omap4_panda_init_rev(void)
> }
> }
>
> +static void __init omap4_panda_wlan_init(void)
> +{
> + int ret;
> +
> + omap_panda_wlan_data.irq = gpio_to_irq(GPIO_WIFI_IRQ);
> +
> + ret = wl12xx_set_platform_data(&omap_panda_wlan_data);
> +
> + /* bail out silently in case wl12xx isn't configured */
> + if (ret == -ENOSYS)
> + return;
> +
> + /* bail out verbosely on any other error */
> + if (ret) {
> + pr_err("error setting wl12xx data: %d\n", ret);
> + return;
> + }
> +
> + ret = platform_device_register(&omap_vwlan_device);
> + if (ret)
> + pr_err("error registering wl12xx's fixed regulator: %d\n", ret);
> +}
> +
> static void __init omap4_panda_init(void)
> {
> int package = OMAP_PACKAGE_CBS;
> - int ret;
>
> if (omap_rev() == OMAP4430_REV_ES1_0)
> package = OMAP_PACKAGE_CBL;
> omap4_mux_init(board_mux, NULL, package);
>
> - omap_panda_wlan_data.irq = gpio_to_irq(GPIO_WIFI_IRQ);
> - ret = wl12xx_set_platform_data(&omap_panda_wlan_data);
> - if (ret)
> - pr_err("error setting wl12xx data: %d\n", ret);
> + omap4_panda_wlan_init();
>
> omap4_panda_init_rev();
> omap4_panda_i2c_init();
> platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
> - platform_device_register(&omap_vwlan_device);
> omap_serial_init();
> omap_sdrc_init(NULL, NULL);
> omap4_twl6030_hsmmc_init(mmc);
> diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c
> b/arch/arm/mach-omap2/board-zoom-peripherals.c
> index c166fe1..3506ed2 100644
> --- a/arch/arm/mach-omap2/board-zoom-peripherals.c
> +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
> @@ -286,19 +286,33 @@ static void enable_board_wakeup_source(void)
> OMAP_WAKEUP_EN | OMAP_PIN_INPUT_PULLUP);
> }
>
> -void __init zoom_peripherals_init(void)
> +static void __init zoom_wlan_init(void)
> {
> int ret;
>
> omap_zoom_wlan_data.irq = gpio_to_irq(OMAP_ZOOM_WLAN_IRQ_GPIO);
> +
> ret = wl12xx_set_platform_data(&omap_zoom_wlan_data);
> + /* bail out silently in case wl12xx isn't configured */
> + if (ret == -ENOSYS)
> + return;
>
> - if (ret)
> + /* bail out verbosely on any other error */
> + if (ret) {
> pr_err("error setting wl12xx data: %d\n", ret);
> + return;
> + }
>
> + ret = platform_device_register(&omap_vwlan_device);
> + if (ret)
> + pr_err("error registering wl12xx's fixed regulator: %d\n", ret);
> +}
> +
> +void __init zoom_peripherals_init(void)
> +{
> omap_hsmmc_init(mmc);
> + zoom_wlan_init();
> omap_i2c_init();
> - platform_device_register(&omap_vwlan_device);
> usb_musb_init(NULL);
> enable_board_wakeup_source();
> omap_serial_init();
> --
> 1.7.10.rc3.1067.gb129051
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